Manuel utilisteur

Manuel utilisteur
NAVIGATOR MODULATION ANALYZER
TEST AND MEASUREMENT EQUIPMENT
(Software version 1.6.x)
The following are found in this binder:
• User manual
• Technical specifications
Date: 09/2008
Ref: DOC00237
Audemat® is a registered trademark of the Audemat Group.
Audemat SA – Audemat INC
web: www.audemat.com - e-mail: [email protected]
NAVIGATOR MODULATION ANALYZER
TEST AND MEASUREMENT EQUIPMENT
USER'S MANUAL
(Software version 1.6.x)
Date: 2008/09/18
Audemat® is a registered trademark of the Audemat Group.
Audemat Group – Audemat INC
web: www.audemat.com - e-mail: [email protected]
Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
CONTENTS
1. INTRODUCTION .........................................................................................................4
1.1. General information ..............................................................................................4
1.1.1. About the Audemat Group .............................................................................4
1.1.2. About the Navigator Modulation Analyzer......................................................4
1.2. Before beginning...................................................................................................5
1.3. Licenses and options ............................................................................................5
2. PRODUCT PRESENTATION ......................................................................................6
2.1. List of included accessories ..................................................................................6
2.2. Front panel ...........................................................................................................6
2.2.1. General view..................................................................................................6
2.2.2. Connections...................................................................................................7
2.2.3. Screen: ..........................................................................................................8
3. QUICK START ............................................................................................................9
3.1. PC System requirements ......................................................................................9
3.2. Connection ...........................................................................................................9
3.3. Configuration ......................................................................................................10
4. THE DEVICE’S FRONT PANEL APPLICATION ......................................................11
4.1. Overview.............................................................................................................11
4.2. Unite configuration..............................................................................................12
4.3. Measures ............................................................................................................14
4.3.1. Launching measures....................................................................................14
4.3.2. Spectrum .....................................................................................................16
4.3.3. MPX Power..................................................................................................16
4.3.4. Modulation ...................................................................................................16
4.3.5. Audio............................................................................................................17
4.3.6. RDS .............................................................................................................17
4.3.7. Capturing measurements.............................................................................18
5. THE EMBEDDED WEB SITE....................................................................................19
5.1. Product ID...........................................................................................................19
5.2. Date / Time .........................................................................................................20
5.3. Users ..................................................................................................................21
5.4. Network ..............................................................................................................22
5.5. Support ...............................................................................................................23
5.6. Download............................................................................................................24
6. REMOTE COMPUTER APPLICATION.....................................................................25
6.1. Launching the Navigator Modulation Analyzer’s application...............................25
6.1.1. Prerequisite..................................................................................................25
6.1.2. Connection to the equipment .......................................................................26
6.2. Configuration ......................................................................................................28
6.2.1. Configuration tab..........................................................................................28
6.2.2. Flow tab .......................................................................................................30
6.2.3. Configuration management..........................................................................31
6.3. Options button ....................................................................................................33
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
6.3.1. Preferences ................................................................................................33
6.3.2. Report ..........................................................................................................34
6.3.3. Capture ........................................................................................................35
6.4. Measures button .................................................................................................36
6.4.1. General points .............................................................................................36
6.4.2. Analysis tools ...............................................................................................37
6.4.3. MPX tab .......................................................................................................39
6.4.4. Audio tab......................................................................................................40
6.4.5. Sub-carrier tab .............................................................................................41
6.4.6. Modulation tab .............................................................................................42
6.4.7. Spectrum tab ...............................................................................................43
6.4.8. Oscilloscope tab ..........................................................................................44
6.4.9. Thd tab.........................................................................................................46
6.4.10. Filters tab .....................................................................................................47
6.4.11. RDS tab .......................................................................................................48
6.4.12. Summary tab ...............................................................................................59
6.5. Reports button ....................................................................................................60
6.6. Managing captures .............................................................................................62
6.6.1. Download one or more captures ..................................................................62
6.6.2. Displaying a capture ....................................................................................62
6.7. Option: Laboratory tools .....................................................................................63
6.7.1. Laboratory tools features .............................................................................63
6.7.2. Activating the option.....................................................................................63
7. AUTOMATION TOOLS .............................................................................................64
7.1. Connection .........................................................................................................64
7.2. Using the automation tools .................................................................................66
7.3. A final note..........................................................................................................67
APPENDIX A: AUTOMATION COMMAND LIST..........................................................68
A.1. Global commands...............................................................................................68
A.2. Set RF frequency................................................................................................68
A.3. Set ......................................................................................................................68
A.4. Set Input/output matrix........................................................................................68
A.5. Set Generator .....................................................................................................69
A.6. Reference levels .................................................................................................69
A.7. Set references deviation for each modulation standard......................................70
A.7.1. Set MPX Level reference for each modulation standard..............................70
A.7.2. Set Pilot Level reference for each modulation standard...............................70
A.7.3. Set RDS Level reference for each modulation standard ..............................70
A.7.4. Set AUX Level reference for each modulation standard ..............................70
A.8. Get versions........................................................................................................70
A.9. Get Levels ..........................................................................................................70
APPENDIX B: KEYBOARD SHORTCUTS ...................................................................73
APPENDIX C: GLOSSARY ..........................................................................................74
C.1. RDS ....................................................................................................................74
C.2. Detector filters.....................................................................................................76
APPENDIX D: FOR FURTHER INFORMATION...........................................................77
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
1. INTRODUCTION
1.1. General information
1.1.1. About the Audemat Group
Created in 1980, Audemat designs, develops and offers a complete line of products for
Radio and TV broadcasters, stations, and telecommunication operators as well as
regulation authorities.
The Audemat product line includes RF and data monitoring equipment for analog and
digital radio (HD, DAB/DMB, AM, FM) and analog and digital TV (DVB T/H/SH, ATSC,
PAL/SECAM, NTSC).
Audemat also offers mobile field strength meters for analog and digital Radio and TV
with modulation monitors built-in; Facility remote control solutions; Digital test and
measurement equipment, audio processors as well as world-class RDS encoders.
In 2006 Audemat acquired ECRESO (www.ecreso.com), a manufacturer of transmitters
for FM (20 W to 10 kW solid state, air and liquid cooled) and DVB (low power 0.5 Watts
to 200 Watts).
In 2008 Audemat acquired Nortek (www.nortek-tv.com), a TV monitoring and Test and
Measurement equipment manufacturer, located in Lille-France.
About 100 employees are located in the Bordeaux-Merignac site in France.
Represented in more than 45 countries in Europe and Asia through a large distribution
network, the Audemat group has also a subsidiary in Miami (Florida-USA), composed of
7 employees in charge of developing sales activities in North and South America,
Australia and New-Zealand.
Since the beginning of 2008, Audemat has opened a sales office in Beijing (China).
Audemat has won a total of 12 awards for 8 years in a row at NAB.
Audemat is ISO 9001 and ISO 14001 (sustainable development) certified by BVC
Bureau Veritas.
1.1.2. About the Navigator Modulation Analyzer
The Navigator Modulation Analyzer is an entirely digital demodulator. The RF, MPX or
audio signal is digitalized as soon as it enters the device, and all processing in the
device is then made through calculations.
For the RF input, this acquisition is made using an accurate and very quick converter,
directly analyzing the entire FM band (88-108 MHz), without mixing.
Digitalizing in this way, at the input, gives the equipment measurement reproducibility
over time, as well as from one device to another: the same signal applied to two devices
will give the same result. The accuracy of the digital filters, used in this equipment,
enables the FM multiplex signal’s components to be accurately and repeatedly
reproduced from one device to another, incurring no errors.
The processing power in this equipment enables all measurements to be refreshed
simultaneously and synchronously, thereby allowing for detailed readings of all the
Multiplex FM signal components, while viewing the 4 available spectrums and
maintaining a review of the decoded RDS.
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
1.2. Before beginning
To keep Audemat’s devices safe and to ensure operation exempt from any danger,
the user must respect the following instructions, symbols and precautions:
12345-
67-
8-
The device should only be operated in the conditions described in this
manual.
Nothing must obstruct the ventilation.
The device must only be used with a plug that incorporates a
protective ground contact.
To avoid any risk of electrocution, the protection conductor must not
be cut, intentionally or not, either on the device or on the power cord.
Before switching on the device, be sure that the nominal voltage
specified on the device corresponds to that of the mains’ nominal
voltage.
To avoid any electromagnetic interference, the device must only be
used when it is closed. Shielded cables are mandatory.
The device should only be operated on a stable electrical network. If
the electrical network is not stable, a power conditioner, such as a
UPS, must be used.
Any operation concerning maintenance, adjusting or repairing must
be carried out by qualified staff.
¾ Caution: LITHIUM BATTERIES
If the battery is not correctly replaced, there will be a risk of explosion.
Only replace it with a battery of the same type. Contact Audemat before
attempting to use another type.
Do not throw away used batteries; send them back to us.
1.3.
Licenses and options
The Navigator Modulation Analyzer comes in standard or Laboratory version. The
Laboratory option includes the following features:
¾ RF frequency meter,
¾ AF distortion meter,
¾ AF frequency meter,
¾ Pilot frequency meter,
¾ Test signal generator (pure sine wave),
¾ RDS frequency meter,
¾ Pilot/RDS synchronization/phase difference
¾ Oscilloscope (0 – 200 kHz),
¾ Automation tools for remote access.
Please read section 6.7 for more information on getting and installing this option.
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
2. PRODUCT PRESENTATION
2.1. List of included accessories
Check that all accessories are present:
•
•
•
•
•
1 external 200V/12V power supply
1 crossed network cable (labeled “B”)
1 male/male BNC cable (“N”)
1 3-flap packet including a CD-Rom, a cable connection diagram,
quality control document, a satisfaction survey and a quick start
manual.
1 binder including the user manual and a measurement synthesis
report for your equipment
2.2. Front panel
2.2.1. General view
Touch screen
q
r
p
o
Equipment
power supply
Crossover
network cable
Power
button
Headphone
output
Note:
o
p
qr
Network cable. When connecting to a network (via a router or
switch), the cable must be standard (not crossed). If a computer
is connected directly, a crossover cable must be used.
Headphone output. The output is disabled when the screen is off
Reserved for future use
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
2.2.2. Connections
n
o
p
q
Inputs
Outputs
n
o
p
q
n
RF 50Ω input (87.5-108MHz).
Min / max levels: -25 dBm / +10 dBm.
o
MPX input.
p
Analog audio inputs.
q
Audio AES/EBU input (48kHz).
n
Composite 2 output. See § 6.2.1 for directions on how to assign a
signal to this output.
o
Composite 1 output. See § 6.2.1 for directions on how to assign a
signal to this output
p
Analog outputs. See § 6.2.1 for directions on how to assign a
signal to this output
q
AES/EBU output (48kHz). See § 6.2.1 for directions on how to
assign a signal to this output
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
2.2.3.
.2.3. Screen:
n
p
q
o
n
Power On/Off button.
We strongly recommend the use of the screen on the front
panel to turn off the equipment. (see §4.1)
o
Screen On/Off button.
When the screen is not necessary, we strongly recommend
turning it off using this button.
This button also controls the headphone output: if the screen
is off, the headphone output will be off.
p
Volume control for headphone output and for screen configuration
setting.
q
Control for screen configuration setting
Note: The screen has a tactile faceplate for which a stylus has been
supplied. When starting up the equipment, this faceplate
requires calibration, so that the cursor follows the movements
of the stylus. This calibration is done by dragging the stylus
around the edges of the screen. Repeat this manipulation
whenever the cursor does not track properly.
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
3. QUICK START
3.1. PC System requirements
The minimum configuration required to run the Navigator Modulation Analyzer
application is:
•
•
•
•
Pentium IV
2 GHz processor
Microsoft® Windows® XP
1 Go of RAM
3.2. Connection
Connect the power supply to the Navigator Modulation Analyzer and power on.
Connect the (crossover) IP cable between your computer’s network port and the
Navigator M.A.’s IP connection. Check the Navigator’s network parameters using the
front panel (IP address, mask address).
For a direct connection, set the IP address of the computer in the 192.168.x.x range
so as to avoid conflicts with the Navigator Modulation Analyzer.
For this, if using Windows 2000 or Windows XP, click
the “Start” button, and:
¾ Control panel/Network connections/
¾ Local Area Connection / Properties
¾ Click on Internet Protocol (TCP/IP) in the scrolldown menu then on “Properties”.
¾ Add the IP address and the sub-network mask.
(for example 192.168.17.56/ Netmask
255.255.0.0)
With Vista, click the “Start” button, and:
¾ Control panel / Network and Internet / Network
and Sharing Center.
¾ Click on “View Status” for your local area
connection, and on Properties
¾ Click on Internet Protocol 6 or 4 depending on your network, then on
Properties.
¾ Add the IP address and the sub-net mask. (for example 192.168.17.56 /
Netmask 255.255.0.0)
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
3.3. Configuration
>
From this point, the configuration can be done using the embedded
web site via Ethernet and Internet networks.
Open a web browser (Internet Explorer, Mozilla…) and enter the IP address:
192.168.16.44 by default, or the one you just set via the front panel.
The default login and password are “Admin”/ “admin”.
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
4. THE DEVICE’S FRONT PANEL APPLICATION
4.1.
Overview
The Navigator Modulation Analyzer’s front panel application makes it possible to
configure the unit but also to launch measures and to view a large number of graphs
and data.
When first activating the equipment, a screen appears on the front panel; this screen
indicates that initialization is happening. Wait a few seconds.
6
The arrow on the lower right of the screen allows access to the menus. Using the stylus,
touch it to display menus and touch it again to hide them.
A menu entry followed by an arrow pointing to the right indicates there is a
sub-menu.
The last menu item (preceded by an arrow pointing to the left) will bring
you back to the previous screen).
Note: If the cursor does not follow the movements of the stylus, touch all 4
corners of the screen in order to recalibrate the cursor.
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
4.2.
Unite configuration
¾ Touch the arrow to access the main menu:
6
1
2
¾ 1 : Click on “Management” to display the following screen:
6
1
2
3
You may then:
1. “Reboot": restart the unit.
2. “Shutdown”: this is the recommended method to shut down your
Navigator Modulation Analyzer.
3. “Reset password” to factory settings (Admin/admin).
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
¾ 2: Click on “Network” to display and modify network parameters: IP address,
gateway and netmask.
¾ Click on the button for the parameter you wish to modify:
•
Use the “Del” button to erase current value and enter the new value.
•
Once the IP address (or mask or gateway) has been changed, the OK button is
activated. Click on it to validate. New values are in effect right away.
Note:
The IP address set here will be the one used to connect to the
equipment with the remote application (see § 6.1.2).
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
4.3.
Measures
4.3.1.
Launching measures
Click on “Measure” from the main screen menu.
The list of current configurations is displayed:
default configurations and user configurations
created from the remote application. The active
configuration, if any, has a green background.
Once selected, details for this configuration are
displayed. The frequency may be modified as is
done with the IP address (see section 4.2).
To change the source, click on the “Change”
button; then, simply click on the new source to
update the configuration.
Click “Start measure” to launch measures.
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
The measure main screen displays the following information:
¾
¾
¾
¾
¾
¾
Configuration name
Activated input
Deemphasis
Modulation type
Output settings
Input settings
You may then access the full measure menu and choose the type of measure you wish
to perform on the frequency: spectrum analysis, modulation measurement, MPX
power…
All menu items are not directly accessible; click on “More” to view the last menu items:
1
2
While in measure mode, you may:
1. “Reset” measurements: the current
capture is stopped and a new one
starts.
2. “Stop Measurements”: this command
is only available from the main
measure screen.
3. Go back to the "Main” measurement
screen.
3
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
4.3.2.
Spectrum
Click on "Spectrum": you get an RF
spectrum on the chosen frequency.
Display the left menu to be able to view the MPX
spectrum or the L and R audio spectrum.
4.3.3.
MPX Power
Select the MPX power menu to obtain a
diagram
of
measured
deviation
repartition.
Display the left menu to be able to view the instantaneous
curve or the cumulated curve.
4.3.4.
Modulation
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
On this screen, you will see:
- The MPX modulation,
- M, pilot, S, RDS and SCA paths.
4.3.5.
Audio
On this screen, you will see:
- The MPX modulation,
- L, R, L+R and L-R audio.
4.3.6.
RDS
The information RDS screen offers a
summary of decoded RDS information:
- PI
- PS
- TP
- TA
- Character table (or code table)
- PTY
- PTYN
- DI
- PIN
- GRPD
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
Display the left menu to be able to view the groups,
instantaneous and global errors and AF.
4.3.7.
Capturing measurements
Automatic measurement reports are only available from the Navigator Modulation
Analyzer remote application. Capturing measurements from the front panel makes it
possible to collect a set of data for a measurement run. You will then be able to
download this measurement capture onto your PC from the remote application so as to
be able to generate reports.
Simply click the Capture button from any measurement screen. The capture lasts about
3 s.
Please read section 6.6 on capture management with the remote application for further
details.
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
5. THE EMBEDDED WEB SITE
5.1. Product ID
On this page of the embedded website, the user can:
¾ Configure:
o
o
Product name: it can be used for connecting to the equipment from
the java application. It is therefore recommended to use a unique
and easily recognizable name.
Product description (optional)
¾ View:
o
o
o
Serial number
Software version
Hardware version
Note: Whenever the user enters new parameters, he/she must click on
“Update” to save the changes. This applies to all NAVIGATOR
MODULATION ANALYZER parameters.
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
5.2. Date / Time
¾ “Set system date”: date and time update.
The user may enter the date (year/month/day) as well as the time
(hour/minute/second).
¾ “Set system time zone”: updates the geographical time zone
The user selects the geographical zone from the list. Important to have this
set correctly when using an NTP server.
¾ “Network Time Protocol”: NTP update
The user can enter a time server address to update the equipment’s internal
clock automatically.
Example: 192.88.30.1
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
5.3. Users
¾ “Web accounts”
There are 2 user levels on the equipment: “Administrator” and “Guest”.
o “Administrator”: any user with the Administrator level has the
possibility of changing any of the parameters.
o “Guest”: a user connected with the Guest level will be able to view
measurements and settings but will not be able to change any
configuration or settings.
¾ “FTP accounts”:
o Webmaster account: access to HTML pages. The user can
personalize the embedded web pages (for example, by inserting
company logos). He/she must be logged in as “Webmaster”.
o Administrator account: access to the equipment’s entire directory.
o Update Manager account: access to the equipment’s update
directory.
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
5.4. Network
¾ Ethernet configuration mode
The interface can be configured for dynamic or static IP.
¾ Static Ethernet configuration
If the IP address is a static address, enter the parameters in this window.
¾ DNS Servers: DNS configuration.
¾ Current network status: present network table.
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
5.5. Support
¾ System software update: to update the equipment with the latest software
versions. The user will put the name of the patch file in the window: by
clicking on “apply”, the update is automatic.
¾ System monitoring: by clicking on “view”, the user can check the system
status table (temperature, date, ram disk, etc.).
¾ STOP/Restart:
o Restart application: this function causes an application restart
to re-initialize the parameters.
o Reboot equipment: this function causes a total reboot of the
equipment.
o Power off: turns the equipment off remotely.
NOTE: it is not possible to turn on the equipment on remotely.
¾ Default configuration: Erases the current configuration and restores the
original default configuration.
Caution: All configuration (except network settings) will be deleted!
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5.6. Download
This page enables you to download the Modulation Analyzer application for the
equipment. Click on the first line to, and select ‘Open’ to install the application, or ‘Save’
to save the installer for later installation.
You can also download this manual from the embedded website link
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6. REMOTE COMPUTER APPLICATION
6.1. Launching the Navigator Modulation Analyzer’s application
6.1.1. Prerequisite
A Java application, “Navigator Modulation Analyzer” is stored in the unit and is
available to be downloaded from the embedded web site in the “Download” tab.
You should also check that the equipment’s network parameters are compatible
with those of your computer.
Note: The equipment does not have a DHCP server. It is therefore
mandatory, when using a crossed cable, to configure the
computer with a fixed IP address.
For a direct connection, configure the computer’s IP address in the 192.168.x.x
range (refer to section 3.2).
In case of doubt, and so as to be sure that the equipment can be contacted by
the PC, use the ping command via the computer’s command prompt, and check
that a reply comes back from the Navigator Modulation Analyzer.
Note: If the equipment is on a network, it will be possible for several
people to have access simultaneously. The equipment allows
data viewing by several users at once. However, any change of
the configuration by one of the users will have an effect on the
equipment and an impact on all users; it is not possible for the
equipment to be used in demodulator mode on the RF input by
one user and at the same time in audio input mode by another.
Using ‘login/password’ will limit access and possible interference.
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6.1.2. Connection to the equipment
¾ The first time the software starts, the following screen is displayed :
Reset
previously
saved data
1
2
3
4
5
¾ Enter the equipment’s IP address (2) and the HTTP port (3) (port 80 by
default), as well as the login and password (4).
•
•
The IP address can be set and modified from the front screen (see § 4.1)
The login and password can be modified from the embedded web site’s “Users”
tab (section ‘Web’). Default values are “Admin”/ “admin” for the administrator and
“Guest”/ “guest” for a basic user.
¾ Or: click on the magnifying glass (5) to display a list of equipment
connected to the network.
Double-click on the line for the chosen equipment: its IP address and port
will appear in (2) and (3). Just enter the login and password as described
above.
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¾ Once the application has been used, a scroll-down menu is available (1)
to select the equipment’s name from a list of current connections:
Enter the login and password if the "Save password" box had not been
checked.
¾ Click on the "OK" button. The application may take a few seconds to
establish the connection.
¾ Each time the application is started up a note on the equipment will
appear.
It is possible to disable it (check the ‘Do not display’ box, see § 6.3).
Once the connection has been established, click on the “Configuration” tab to begin
your equipment’s configuration.
Note: it is possible to connect to different equipment, one after the
other, without closing the software application. In the
application, go to the menu FileÆ ‘Connect’, the connection
dialog box will appear again.
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6.2. Configuration
The configuration settings, which are displayed by default on startup, are only
accessible when no measurement is being carried out. It is necessary to stop
measurements by pressing on the “Stop” button in order to toggle onto the configuration
and modify the parameters.
To access the configuration view, click on the button, or go the menu
“View”Æ”configuration”.
CAUTION: The Navigator Modulation Analyzer comes with three default
configurations. These configurations may be modified, but not deleted. They
ensure the unit will work properly.
6.2.1. Configuration tab
o
n
q
p
r
s
n List of 10 recorded configurations: these configurations are available on
the equipment’s front panel. They enable configurations specific to a
station to be memorized.
These configurations are stored in the equipment not locally on the PC.
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o
p
Configuration name as selected in list n.
List of signals which will be routed to the equipment’s outputs.
Possible choices are summarized below:
Audio
HeadTx output
outputs
phones
y
MPX
y
Pilot
y
RDS
y
Mono
y
y
Stereo
y
Left
y
y
Right
Left
y
with de-emphasis
y
Right
y
with de-emphasis
Sine wave 1 generator *
y
y
y
Sine wave 2 generator *
Signals routed to the AES/EBU and audio Analog outputs are identical
For the headphone output the outputs are ‘linked’: Mono/Stereo, Left/Right.
q Definition of the de-emphasis. The signals with or without de-emphasis are
calculated continuously, which enables output of any audio signal with or
without continuous de-emphasis.
r Definition of output levels generated by the reference levels.
s Definition of possible different configurations and associated levels. These
reference levels are the ones used for calculating audio levels.
Note: So as to facilitate le learning curve on the Navigator Modulation
Analyzer, tool tips may appear, containing short explanations.
Simply hover over a text zone and keep the mouse still for one
second:
* Only available with the optional Laboratory tools.
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6.2.2.
.2.2. Flow tab
q
n
o
p
n Navigator Modulation Analyzer input selection.
This may be Analog Audio, AES Audio, MPX or RF input.
• If the RF is chosen, the frequency in MHz should be entered. The RF
signal at the input must contain only that frequency to guarantee
accuracy of the equipment, and the RF level must be in the
-25dBm/+10dBm range.
• If the MPX input is chosen, the signal is a 0-100kHz signal, whose
nominal level is defined in § 6.2.1 (if the reference level is 0 dBu, the
reference deviation is 75kHz and the signal is applied with a level of
6 dBu, the deviation bargraphs will display 150kHz).
• If the audio inputs (AES or Analog) are chosen, the signal is a 0-16kHz
signal, whose nominal level is defined in § 6.2.1 (if the reference level is
6dBu, and the signal is applied with a level of 0dBu the audio bargraphs
will display a level of -6dB).
o Acquiring data and readings: all of the panels in the application are
simultaneously refreshed at a frequency depending on the type of information
displayed. The speed will also depend on the power of the computer being
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used, with a slow computer, it is best not to check all boxes.
Warning: ‘Thd’ and ‘Oscilloscope’ screens (Laboratory tools) are linked to the
‘Analyze FM modulation’ and ‘Analyze RF spectrum’ options.
p Choice of transmission mode: the reference levels used by the application to
calculate the audio levels are dependent on this mode, as defined in the
Configuration tab. The mode detection may be automatic.
q This section is only available with the Laboratory option.
Choice of frequency generated by both local generators. These frequencies
must be within 10Hz and 90 kHz. However, make sure you do not assign a
sine wave with a frequency greater than 24 kHz on audio outputs.
The sine wave level is set in dBr. An immediate conversion gives access to
digital (AES/EBU) and analog levels.
6.2.3. Configuration management
NOTE: The Navigator Modulation Analyzer comes with three default
configurations. These configurations may be modified from the remote
application, but not deleted. They ensure the unit will work properly.
Use the buttons on the tool bar:
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In order to create a new configuration, click on the "New conf." button:
Click on "Create configuration”, its
name will then appear in the list and
you will be able to set its
parameters (see previous section).
Enter the name of the
new configuration.
When a configuration is modified, click on “Save conf.” to save the changes. If you exit
the Configuration mode without saving, the Navigator Modulation Analyzer will offer to
do it.
To delete a configuration, select it from the list and click on the “Del. Conf.” button.
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6.3. Options button
Click on the "Options" button (or menu “File”Æ’Options’) to open the Preferences
window.
6.3.1. Preferences
n
o
p
q
r
s
t
n Enables the note display on start up to be deactivated.
o Defines whether the Reset button starts a new capture (if checked)
or only resets minima and maxima (see § 6.4.1).
p Maximum time for a measurement capture, in minutes.
q Automatically generates a report at the end of capture if checked.
r Choice of the language to be used for display: the operating system
language is used by default.
s Check if damping correction should not be applied to bargraphs.
t Modulation unit type: kHz or %.
Note: Close and reopen the application in order for the language
changes to be taken into account.
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6.3.2.
.3.2. Report
n
o
p
n Text editor used for the creation of reports. Ex: if Microsoft Word is
used, select WINWORD.EXE, usually found in the directory:
\Program Files\Microsoft Office\Office 11.
o Directory in which reports and screen captures used for predefined
reports are saved.
p Directory in which report models created by the user are saved.
This information is optional, if left blank, only Audemat standard
report models will be used.
Note: Configuring the word processor and the report directory is
mandatory in order to be able to launch measurements.
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6.3.3.
.3.3. Capture
n
n Directory in which captures from the front panel application are
saved.
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6.4. Measures button
6.4.1. General points
Pressing the Measures button (or going to the menu “Views”Æ”Measures”) switches the
display to all measurement tabs. This does not trigger off value acquisitions; the graphs
and their former values are displayed.
After having selected a configuration, the recording of measurements is launched by
pressing on the “Start” button (or going to the menu “Measures”Æ”Start”, or using the
shortcut ‘s’). From this moment on, all selected tabs (see § 6.2.2) are simultaneously
and continuously refreshed; time graphs store the measurements that, are not visible on
the graph. Data is viewed by clicking from one tab to another. The process is the same
for the RDS tabs.
Tabs composed of several graphs enable related data to be viewed in a grouping. This
view is divided into two lines; the first line has three or four smaller graphs, the second
contains the larger working graph. Contents of the large graph are chosen by clicking on
one of the graphs on the first line.
This working graph can incorporate advanced functions, depending on its type. These
functions include zoom, markers and maximum hold capabilities.
To view the RDS, press the “Stop” button (or go to the menu “Measures”Æ”Stop”, or
using the shortcut ‘h’) This is the only way to see the data (since the first measurement).
The “Reset” button (or the menu “Measures”Æ”Reset”, or using the shortcut ‘r’) resets
the displayed minima and maxima. If the option “The Reset button acts as restart” is
checked (see § 6.4), clicking on the “Reset” button stops the current capture and starts
a new one.
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The status bar reminds the user of the input type, as well as the date and time of
the beginning of the analysis and the time elapsed since the beginning of the
measurements.
n
o
p
q
n
o
Equipment’s IP address.
p
Type of input used (RF, MPX, AES or ANA).
For the RF input, the analysis frequency is displayed.
q
r
Date of beginning of the analysis.
r
If the RF input is the active input, RF levels at equipment input are
displayed.
z RF level within the functional range will show a green LED.
z A red LED indicates the level is too low (< -25 dBm).
z An orange LED indicates the level is too high (> 11 dBm).
Time elapsed since the beginning of the analysis. This time is in
days:hours:minutes:seconds.
6.4.2. Analysis tools
Some zoom and measurement tools are available for spectrum analysis. These
tools are only available on the working graph and are dependant on this graph.
6.4.2.1
Zoom
It is possible to zoom on a specific part of the curve, by clicking the left mouse button
and dragging to define the zone to be displayed. Click and drag from upper left
towards the bottom right.
To go back to the previous zoom, click the left mouse button, drag up to the left and
release the button; the graph will then show its original scale.
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6.4.2.2
Markers
It is possible to position two markers. To activate the markers:
1. Click the “Measurement” button.
2. Right-click on the desired spot on the curve, (marker 1).
3. Right-click a second time on the curve, on the desired spot
(marker 2).
4. Right-click a third time on the graph to delete the two markers.
These markers can be linked to a curve (main curve, secondary or maximum curve),
or be completely floating (not attached to a curve).
A Max hold function is also available on the RF graph. It memorizes the maximum
RF level measured since the beginning of the application or since the last reset.
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6.4.3.
.4.3. MPX tab
To access this tab, you may also go the "Measures” menu or use the “F1” shortcut.
n
p
o
q
r
s
n
o
p
q
Diagram showing distribution of measured deviations.
r
This graph is the zoom of the selected graph: click on the frames nop or q
on first line to see the graph displayed bigger, below.
Example in this tab with the “instantaneous MPX”.
Cumulated MPX.
Time representation of minimal and maximal deviation.
Time representation of the calculated multiplex power (in dB, according to
ITU BS412-7 standard).
Note: this window is present in all tabs. Markers and zoom are available to
facilitate readings (please refer to section 6.4.2).
s
Display of data in numerical format for a better interpretation.
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6.4.4.
.4.4. Audio tab
To access this tab, you may also go the "Measures” menu or use the “F2” shortcut.
Refer to section 6.4.2 to learn how to zoom on the graph.
n
o
p
q
r
n Time representation of positive and negative peaks linked to the Mono
signal.
o Time representation of positive and negative peaks linked to the Stereo
signal.
p Time representation of positive and negative peaks linked to Left signal
without de-emphasis.
q Time representation of positive and negative peaks linked to the Right
signal without de-emphasis.
r Peak levels of these 4 signals from the beginning of the acquisition or
from the last reset.
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6.4.5.
.4.5. Sub-carrier tab
To access this tab, you may also go the "Measures” menu or use the “F3” shortcut.
Refer to section 6.4.2 to learn how to zoom on the graph.
²
o
p
q
n Time representation of positive and negative peaks linked to the Pilot
signal.
o Time representation of positive and negative peaks linked to the RDS
signal.
p Time representation of positive and negative peaks linked to the Auxiliary
signal (DARC).
q Peaks of these 3 signals from the beginning of the acquisition or from the
last reset.
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6.4.6.
.4.6. Modulation tab
To access this tab, you may also go the "Measures” menu or use the “F4” shortcut.
Refer to section 6.4.2 to learn how to zoom on the graph.
p
n
o
n
Level of Multiplex signal components:
• Total deviation,
• Mono component,
• Pilot,
• Stereo component (if pilot is detected),
• RDS,
• Auxiliary (DARC).
o
p
Audio level without de-emphasis.
Reminder of the current configuration: reference levels.
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6.4.7.
.4.7. Spectrum tab
To access this tab, you may also go the "Measures” menu or use the “F5” shortcut.
This tab displays three spectrums simultaneously.
Refer to section 6.4.2 to learn how to zoom or position markers on the graph.
n
o
p
q
r
s
n
RF channel spectrum before demodulation, with a pass band of ±155
kHz. The spectral resolution is ~390 Hz/pixel.
o
p
100 kHz MPX signal spectrum. The spectral resolution is 195Hz/ pixel.
q
r
s
Enlarged view of selected spectrum.
Demodulated left (red) and right (blue) audio spectrums.
The graph has 512 dots for a pass band of 25 kHz.
Work panel: marker coordinates and delta in frequency and level.
With the RF and MPX spectrums, the “Max” button display the largest
curve while “PH Auto” places a marker at the highest point.
With the audio spectrums, a pull-down menu
allows the user to select the deemphasis level.
The default spectrum is for the signal without
deemphasis.
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6.4.8. Oscilloscope tab
This option is only available with the Laboratory tools.
To access this tab, you may also go the "Measures” menu or use the “F6” shortcut.
Refer to section 6.4.2 to learn how to zoom on the graph.
n
o
p
q
r
n
o
p
View of the MPX signal oscilloscope.
View of the synchronized left and right signals oscilloscope.
Reminder of levels for the signal visible in section q, when the MPX
oscilloscope n is selected.
If the Audio oscilloscope o is selected,
displayed information in this zone is as shown
here:
q
Enlarged view of one of the oscilloscopes for a better analysis (zoom,
choice of synchronization signal, detection level, horizontal scale).
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r
Choice of displayed signals. Choice of edge type.
Choice of thresholds and references.
For an Audio signal (graphic o), selection of the
signal used for synchronization:
s
If the Audio oscilloscope o is selected, reminder
of measured frequencies for each channel (from
the THD tab):
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6.4.9.
.4.9. Thd tab
This option is only available with the Laboratory tools.
To access this tab, you may also go the "Measures” menu or use the “F7” shortcut.
Refer to section 6.4.2 to learn how to zoom on the graph.
p
n
o
q
r
n
o
p
q
r
Left audio spectrum view (identical to the Spectrum tab).
Right audio spectrum view (identical to the Spectrum tab).
Level of the first 4 harmonics for each channel.
Enlarged view of selected graph (with zoom capability).
Detected frequency for each channel and THD 1 and THD+N 2
measurements for each channel with double display: % and dB. The
table summarizes levels for the first 4 harmonics for each channel.
1: Thd = Total Harmonic Distortion.
2: Thd+N = Total Harmonic Distortion + Noise.
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6.4.10.
Filters tab
To access this tab, you may also go the "Measures” menu or use the “F8” shortcut.
Refer to section 6.4.2 to learn how to zoom on the graph.
q
n
p
o
r
s
n P-P/2 deviation display.
o p Display of signal levels for filters/detectors as selected in s.
q Laboratory tools option only. Display of detected RF frequency
(around configured frequency ± 100 kHz). Display of pilot frequency
and RDS when those signals are detected. Indication of
synchronization RDS pilot / phase difference between these 2
signals.
r
Display of selected ‘reference’ and ‘observed’ signals over time (In
this example, L+R in P-P/2 and L+R in P-P/2 with de-emphasis)
s
Choice of filters/detectors used for display.
Click on the “Relative” button to memorize the max signal measured
amongst the 4 ‘reference’ signals and use it as the new reference.
Available filters/detectors associations:
P-P/2
P-P/2 + with de-emphasis
RMS
RMS with de-emphasis
RMS CCIR 468-4 unweighted *
* This filter is only available with the Laboratory tools
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6.4.11. RDS tab
6.4.11.1 General points
To access this tab, you may also go the "Measures” menu or use the “F9”
shortcut.
All RDS tabs are refreshed simultaneously; this enables the user to view one data
display then another with no risk of losing information.
Some tabs have a history feature, with which the user can display all data
received since the application was started or since the last reset. This is the case
for the following tabs:
o List of AFs
o Hexa group
o ASCII groups
o Radio paging
o TMC
To prevent computer overloading, this history is not visible in real time; data
viewing is only enabled by stopping the analyzer (Stop button) (a scroll bar will
then appear).
Note: Pressing Stop will stop the whole application and not just the RDS part.
Some information is available on every tab:
q
r
n
s
t
u
o
v
p
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
n Identifies the station main RDS data:
•
•
•
•
PI, PS codes,
Traffic information (TA / TP),
Table of characters used,
Information on contents: MS, DI, PTY, PIN, GRPD, PTYN.
o Displays RDS error information.
p Button for filtering groups and/or blocks: check boxes for groups and
blocks to be displayed. By default, every box is checked.
q
Indication of reception of an A type (red) or B type (blue) group.
Red and blue dots on left indicate if the group is filtered or not.
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
6.4.11.2
General tab
q
r
n
s
t
u
o
v
p
r
Last decoded AF list. This panel contains:
• The number of AFs contained in the list,
• The type of method used for sending these frequencies (A or B).
s
RadioText information:
• A/B flag (indication of new RadioText),
• Current RadioText,
• Previous RadioText.
t
u
v
Decoded RDS date and time.
Slow Labelling Code.
Enhanced Other Network: information on the network’s other stations.
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
6.4.11.3
Lists of AF tab
List of AFs (Alternative Frequencies) received by the equipment since the beginning of
the measure. These frequencies are sorted chronologically.
Note: When printing reports, all AF lists are saved in a text file:
af_list.txt, stored in the report directory.
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
6.4.11.4
EON AF tab
o
n
n
All EON network stations, received by the Navigator M.A.
o
List of AFs sorted by Variant. The list displayed is the one associated with
the station or program selected in n.
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
6.4.11.5
Sequence tab
o
n
n
Statistics on the received RDS groups:
• Number of groups received over the last minute (or
between two 4A groups if the RDS time and date are
being transmitted).
• Percentage represented by each group (both A and B
variants).
• Running total of group count.
o
RDS groups received, displayed in order of reception:
• Red background: type A groups,
• Blue background: type B groups,
• Grey background: filtered groups.
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6.4.11.6
Percentage tab
Display of received RDS groups.
•
•
•
The red bars on the graph represent the proportion of type A groups.
The blue bars on the graph represent the proportion of type B groups.
The grey bars on the graph part represent both A&B groups.
Putting the cursor over any grey bar will trigger a popup display of the group number
and contents.
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6.4.11.7
HEXA group tab
RDS data display in Hexadecimal form.
This display is dependant on the settings of the group and block filters.
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6.4.11.8
ASCII group tab
RDS data display in ASCII form.
This display is dependant on the settings of the group and block filters.
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6.4.11.9
Radio paging tab
Radio Paging linked data display.
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6.4.11.10 TMC tab
Traffic Message Channel (TMC) linked data display.
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
6.4.12.
Summary tab
To access this tab, you may also go the "Measures” menu or use the “F10” shortcut.
When measurements are being carried out, it is not possible to access the equipment’s
configuration tab; measurements need to be stopped to modify configuration.
However, this page is a reminder of the equipment’s current configuration. It groups all
parameters and, therefore, enables input, output and reference level settings to be
consulted without modifying them.
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
6.5. Reports button
This button enables automatic measurement reports to be created from:
-
RDS analysis
Audio analysis
Spectrum analysis
MPX power analysis
The button is enabled only if data has been recorded since the beginning of the session.
Note: Make sure a word processor software and directory have been
selected.
Several report models are supplied, automatically integrating values and graphs relative
to a specific type of measurement. They have been created to be compatible with
Microsoft Word 2003 (or more recent).
Note:
Report Models can be found in the Navigator Modulation
Analyzer installation directory. They can be modified so as to be
compatible with other word processors. They can also be
personalized
Note:
Information regarding unit, environment, date, configuration,
inputs, references and more, printed on pages 2 and 3 of
standard reports, is required to guarantee report validity et must
be included in all custom reports.
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
To generate a report, click on the “Report” button, the “File”Æ’Report’ menu or the
shortcut ‘p’.
The word-processing software selected will then be launched to automatically merge
the collected data with all 4 Navigator Modulation Analyzer models.
When generating the report, the application will freeze and all the tabs, graphs and
minimal / maximal values will be archived in the selected directory. As for graphs with
markers, these will also be saved. These values and images will be integrated thanks to
the word-processing software mass mailing functions.
Click on one of the report button to open it.
Note: It may be necessary to modify the word processor security level
so as to allow macro activation. In Microsoft Word, go to the
menu « Tools »Æ’Macros’Æ ‘Security’Æ Security level tab.
An alert message will indicate that an SQL command will be executed upon opening the
document. Click “OK” to continue.
For graphics to appear in the report, in Word, go the menu “Tools”Æ“Macros”Æ”Macro”
(or Alt + F8). Two macros can be used:
¾ ‘refresh’ to update links between the report file and the images, or
¾ ‘incorporate’ to place the images directly in the report.
All reports and associated screen captures are stored in the directory set in the options,
in a sub-folder with a unique time stamp name: yyyymmddhhmmss.
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
6.6.
Managing captures
Captures can be done from the unit front panel application (see section 4.3.7). These
captures can then be downloaded to the PC and viewed via the remote application so
as to create automatic reports.
Note: The following procedures may only be done if captures have
already been taken from the front panel application.
Please make sure the capture is completed before
downloading or the capture file may get corrupted (wait for
the ‘RUN’ LED to turn off, about 10 s).
Captures commands can be found in the “File”
menu.
6.6.1.
Download one or more captures
The list of available captures is displayed in
a window in tree form. There is one folder
per day (yyyymmdd).
Display details for a folder to see captures
made that day. Names of capture files
include date and time and the .mac
extension.
Check the captures you wish to download.
Check the folder if you want all captures for
one day.
Click the Download button to retrieve the
files from the unit to the PC, or the Display
button to view the capture right away.
Note: Captures are saved in the directory as set in the option window
(see section 6.3.3).
6.6.2.
Displaying a capture
Once a capture has been downloaded, the application can read it.
Simply select the .mac file from the “Open” window. Capture values are displayed.
Proceed as with real time to generate reports.
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
6.7. Option: Laboratory tools
6.7.1. Laboratory tools features
Functionalities that are available only with the Laboratory tools options are:
¾
¾
¾
¾
¾
¾
¾
¾
¾
RF frequency meter,
AF distortion meter,
AF frequency meter,
Pilot frequency meter,
Test signal generator (pure sine wave),
RDS frequency meter,
Pilot/RDS synchronization/phase difference,
Oscilloscope (0 – 200 kHz),
Automation tools for remote access.
6.7.2. Activating the option
¾ Contact the sales department in order to obtain the software key to
activate the option.
¾ Copy the product key from the Audemat CD that you receive.
Go to the "Help“ menu of
the Navigator Modulation
Analyzer application and
click on ‘About’.
Paste or copy the
product key in the
text field.
Click on the “Activate”
button on the same
line as the option
name.
Click on “Activate”
to update the unit
with the option.
¾
Close and restart the application
¾
Once an option has been activated, "Yes" appears on the option line.
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
7. AUTOMATION TOOLS
Automation tools are only available with the Laboratory tools option.
Automation tools enable a remote access to the Navigator Modulation Analyzer via a
Telnet connection, without using the java application.
7.1.
Connection
¾ Open a Telnet application, such as HyperTerminal.
¾ Set connection parameters:
Navigator
IP address
Port: 4321
Connection
type:
TCP/IP
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
¾ It may be necessary to modify properties:
Click on the
properties button
Then on the “ASCII
Configuration”
button.
9
Check both boxes for your
commands to be readable.
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
7.2.
Using the automation tools
Now, simply write a command and press the "Enter" key.
Note: The language is not case sensitive. Lower or upper case can be
used.
With :
#/>list
the complete list of commands is displayed.
#/>?
to obtain the list of commands, and get every possible argument.
For instance, the input type can be set:
INPUTTYPE:
0=RF 1=MPX
2=AES
3=ANA
To change it, type:
or
#/>INPUTTYPE=3
#/>INPUTTYPE=ANA
for an analog input. To update the unit after a series of commands, always finish with:
#/>UPDATE
ten names are available for user created commands:
USERCMDNAME0 , USERCMDNAME1 , … USERCMDNAME9
They must be associated with:
USERCMDLIST0 , USERCMDLIST1 , … USERCMDLIST9
so as to define the commands.
Example:
#/>USERCMDNAME3=MACOMMANDE
#/>USERCMDLIST3=FREQ=96.8;SETDRL=STEREO;UPDATE
#/>MACOMMANDE
The command has been named, defined and executed. The response will be:
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
OK
OK
OK
User commands can be deactivated:
#/>USERCMDLIST3=
7.3.
A final note
Commands are recorded within the equipment; it is therefore possible to connect from a
different machine and use previously set user commands..
It is possible to write a script to automate a series of frequently used commands:
¾ Each command must be typed on a new line.
¾ Copy the entire script in the Telnet application text window to be able to
execute it.
Communication with the Navigator Modulation Analyzer is thus faster.
A list of available commands is available in Appendix A.
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
APPENDIX A: AUTOMATION COMMAND LIST
A.1.
Global commands
?
LIST
QUIT
UPDATE
USERCMDNAME<0-9>
USERCMDLIST<0-9>
List of all commands - detailed mode
List of all commands
Exit
Save all changes
Set or read user command name
Set or read user list of commands
CONFNUM
Select the configuration stored in the 0-9 (if set in the
equipment
application)
A.2.
Set RF frequency
FREQ
A.3.
Select RF frequency to tune
Set
DEEMPHASIS
A.4.
97.5-108.0 MHz
select the de-emphasis value
0=50µs
1=75µs
Set Input/output matrix
INPUTTYPE
TXOUTPUT1
TXOUTPUT2
AUDIOOUTPUT1
Select input measurement
0=RF
1=MPX
2=AES
3=ANA
Select output signal on TX1 (MPX Composite)
0=NONE
1=MPX
2=PILOT
3=RDS
4=SINE WAVE1
5=SINE WAVE2
Select output signal on TX2 (AUX)
0=NONE
1=MPX
2=PILOT
3=RDS
4=SINE WAVE1
5=SINE WAVE2
Select output signal on Audio1
0=NONE
1=LEFT
2=RIGHT
3=M
4=S
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
AUDIOOUTPUT2
HEADOUTPUT
A.5.
5=LEFTD
6=RIGHTD
7=SINE WAVE1
8=SINE WAVE2
Select output signal on Audio2
0=NONE
1=LEFT
2=RIGHT
3=M
4=S
5=LEFTD
6=RIGHTD
7=SINE WAVE1
8=SINE WAVE2
Select output signal on HeadPhone
0=LR
1=MS
2=MM
3=LRD
4=SINE WAVE1
5=SINE WAVE2
Set Generator
RMSDBRLEVEL
SIN0FREQ
Set generator level
Set sine wave1 frequency
SIN1FREQ
Set sine wave2 frequency
A.6.
-50.00 – 6.00 dB
10.00 – 90000.00
Hz
10.00 – 90000.00
Hz
Reference levels
MPXREFLEVEL
AFREFLEVEL
AESREFLEVEL
Select MPX input/output level
Select Audio input/output level
Select AES input/output level
SETDRL
Select modulation standard to use
0=MONO
1=MONO+R
2=MONO+S
3=MONO+R+S
4=STEREO
5=STEREO+R
6=STEREO+S
7=STEREO+R+S
8=AUTO
Read current modulation standard (useful if in auto mode)
CURRENTDRL
-12 ; 12 dBu
-12 ; 12 dBu
-25 ; 0 dBFS
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
A.7.
Set references deviation for each modulation standard
A.7.1. Set MPX Level reference for each modulation standard
REFMONO_MPX
REFMONORDS_MPX
REFMONOAUX_MPX
REFMONORDSAUX_MPX
REFSTEREO_MPX
REFSTEREORDS_MPX
REFSTEREOAUX_MPX
REFSTEREORDSAUX_MPX
Mono mode
Mono mode with RDS
Mono mode with AUX
Mono mode with RDS and AUX
Stereo mode
Stereo mode with RDS
Stereo mode with AUX
Stereo mode with RDS and AUX
A.7.2. Set Pilot Level reference for each modulation standard
REFSTEREO_PILOT
REFSTEREORDS_PILOT
REFSTEREOAUX_PILOT
REFSTEREORDSAUX_PILOT
Stereo mode *
Stereo mode with RDS *
Stereo mode with AUX *
Stereo mode with RDS and AUX *
* Multiply by 10 the value you wish to set. Example: enter 68 for 6.8
A.7.3. Set RDS Level reference for each modulation standard
REFMONORDS_RDS
REFMONORDSAUX_RDS
REFSTEREORDS_RDS
REFSTEREORDSAUX_RDS
Mono mode with RDS *
Mono mode with RDS and AUX *
Stereo modewith RDS *
Stereo modewith RDS and AUX *
* Multiply by 10 the value you wish to set. Example: enter 68 for 6.8
A.7.4. Set AUX Level reference for each modulation standard
REFMONOAUX_AUX
REFMONORDSAUX_AUX
REFSTEREOAUX_AUX
REFSTEREORDSAUX_AUX
Mono mode with AUX *
Mono mode with RDS and AUX *
Stereo modewith AUX *
Stereo modewith RDS and AUX *
* Multiply by 10 the value you wish to set. Example: enter 68 for 6.8
A.8.
Get versions
VERSION_DSP1
VERSION_DSP2
VERSION_SOFT
VERSION_HARD
SERIALNUMBER
A.9.
Show DSP1 software version
Show DSP2 software version
Show embedded software version
Show hardware version
Show equipment serial number
Get Levels
RFPOWER
RFFREQ
PILOTFREQ
RDSFREQ
MPXPOWER
MPXMAX
RESETMPX=1
Read current RF power measurement
Read current RF frequency measured (in the channel)
Read current PILOT frequency
Read current RDS frequency
Read current MPX power
Read MPX power max
Reset MPX measurement
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
Following commands can be entered with one optional parameter:
<command> [=0] : value read in dBr (dependant on you reference settings)
[=1] : value read in kHz
[=2] : value read in % (dependant on you reference settings)
* default value is equivalent to =0.
DEVMIN
DEVMAX
DEV
DEVRMS
RDSMIN
RDSMAX
RDS
RDSRMS
PILOTMIN
PILOTMAX
PILOT
SCAMIN
SCAMAX
SCA
LPRMIN
LPRMAX
LPR
LPRRMS
LMRMIN
LMRMAX
LMR
LMRRMS
LEFTMIN
LEFTMAX
LEFT
LEFTRMS
RIGHTMIN
RIGHTMAX
RIGHT
RIGHTRMS
MONOMIN
MONOMAX
MONO
MONORMS
STEREOMIN
STEREOMAX
STEREO
STEREORMS
LPRMIND
LPRMAXD
LPRD
LPRRMSD
Read minimum deviation
Read maximum deviation
Read current deviation
Read MPX RMS deviation
Read RDS minimum deviation
Read RDS maximum deviation
Read RDS current deviation
Read RDS RMS current deviation
Read Pilot minimum deviation
Read Pilot maximum deviation
Read RDS current deviation
Read SCA minimum deviation
Read SCA maximum deviation
Read RDS current deviation
Read L+R minimum deviation
Read L+R maximum deviation
Read L+R current deviation
Read L+R RMS deviation
Read L-R minimum deviation
Read L-R maximum deviation
Read L-R current deviation
Read L-R RMS deviation
Read L minimum deviation
Read L maximum deviation
Read L current deviation
Read L RMS deviation
Read R minimum deviation
Read R maximum deviation
Read R current deviation
Read R RMS deviation
Read M signal minimum deviation
Read M signal maximum deviation
Read M signal current deviation
Read M signal RMS deviation
Read S signal minimum deviation
Read S signal maximum deviation
Read S signal current deviation
Read S RMS deviation
Read L+R minimum with de-emphasis
Read L+R maximum with de-emphasis
Read L+R current with de-emphasis
Read L+R RMS deviation with de-emphasis
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
LMRMIND
LMRMAXD
LMRD
LMRRMSD
LEFTMIND
LEFTMAXD
LEFTD
LEFTRMSD
RIGHTMIND
RIGHTMAXD
RIGHTD
RIGHTRMSD
LEFTQPW
RIGHTQPW
LPRQPW
LMRQPW
LEFTRMSUW
RIGHTRMSUW
LPRRMSUW
LMRRMSUW
THDFREQLEFT
THDFREQRIGHT
THDLEFT
THDRIGHT
THDNLEFT
THDNRIGHT
THDHARMOLEFT
THDHARMORIGHT
RDSPHASE
Read L-R minimum with de-emphasis
Read L-R maximum with de-emphasis
Read L-R current with de-emphasis
Read L-R RMS deviation with de-emphasis
Read L minimum with de-emphasis
Read L maximum with de-emphasis
Read L current with de-emphasis
Read L RMS deviation with de-emphasis
Read R minimum with de-emphasis
Read R maximum with de-emphasis
Read R current with de-emphasis
Read R RMS deviation with de-emphasis
Read L Quasi Peak CCIR Weighted deviation
Read R Quasi Peak CCIR Weighted deviation
Read L+R Quasi Peak CCIR Weighted deviation
Read L-R Quasi Peak CCIR Weighted deviation
Read L RMS CCIR Unweighted deviation
Read R RMS CCIR Unweighted deviation
Read L+R RMS CCIR Unweighted deviation
Read L-R RMS CCIR Unweighted deviation
Read L THD frequency
Read R THD frequency
Read THD L
Read THD R
Read THD+N L
Read THD+N R
Read harmonic level on L channel (0=1st harmonic to
3=4th harmonic)
Read harmonic level on D channel (0=1st harmonic to
3=4th harmonic)
Read RDS-pilot phase difference
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
APPENDIX B: KEYBOARD SHORTCUTS
Some commands available from menus or buttons can also be executed using the
keyboard:
Start measurements
Stop measurements
Reset measurements
Generate reports
MPX tab
Audio tab
SubCarrier tab
Modulation tab
Spectrum tab
Oscilloscope tab
Thd tab
AM noise tab
Automation tab
Filters tab
RDS tab
Summary tab
Æ
Æ
Æ
Æ
Æ
Æ
Æ
Æ
Æ
Æ
Æ
Æ
Æ
Æ
Æ
Æ
s
h
r
p
F1
F2
F3
F4
F5
F6
F7
F8
F9
F10
F11
F12
Page 73
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
APPENDIX C: GLOSSARY
C.1.
AF
RDS
Alternative Frequency: transmitter frequencies from an encoded
station in digital list form. Two transmission methods are possible:
method A (a single list of 25 frequencies) or method B (list of
frequency pairs)
Code Table Alphanumeric character table used with radiotext, radio paging and
or
PTYN. Three tables are defined by the RDS standards.
Character
Table
Decoder Identification: a digital function which enables an RDS
DI
receiver’s audio level to be adjusted according to the type of
received audio (mono, stereo ...).
EON
Enhanced Other Network: a digital function which enables an
RDS station to broadcast RDS parameters to other stations. The
following EON codes are used nowadays:
•
EON-PI: broadcasting PI identity from another station.
•
EON-PS: broadcasting the name from another station.
•
EON-TP: if the flag is at 1, it indicates that the other station
is likely to broadcast traffic information.
•
EON-TA: switches RDS receivers onto the local frequency of
the other station when it broadcasts traffic information.
•
EON-AF: broadcasts the list of alternate network frequencies
from the other station.
•
EON-PIN: broadcasts the time and day of the other station’s
program.
•
EON-PTY: broadcasts the other station’s program types.
EWS
Emergency Warning System: an emergency transmission system
for alerting the population should there be any exceptional events,
jeopardizing security (storms, a cyclone, earthquake, serious
industrial accidents ...). This means of alert used exclusively by
Civil Security organizations is developed primarily in geographical
areas of high risk (overseas, seismic regions).
GRPD
See TNGD.
IH
InHouse
Transmission of data reserved for broadcasters’ internal needs
(urban remote display, remote monitoring, various controlling...).
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
M/S
Music/Speech: a digital flag which automatically modifies an RDS
receiver’s audio volume level according to the broadcast program
(logical state 1 = musical program, logical state 0 = spoken
program).
ODA
Open Data Application: a system transmitting any data whose
format is free and for which a normalizing procedure is not
necessary.
PI
Program Identification: a code identifying the received station
PIN
Program Item Number: a digital code indicating the time and day
of broadcast programs.
PS
Program Service name: a station name of 8 characters
PTY
Program TYpe: a function for identifying types of programs
broadcast by an RDS station.
PTYN
Program TYpe Name: a supplement to program type (PTY),
specifying its nature using an 8 character alphanumeric string.
RP
Radio Paging: software configuration to broadcast digital data. The
transmission protocol is identified with some 1A group bits.
RT
Radio Text: a function which enables text messages to be
broadcast in groups of 64 characters. The RDS receiver must be
equipped with a specific display. The RT function cannot be used
on car radios as road safety commissions have forbidden its use on
board a vehicle. Only home RDS receivers can have the advantage
of this radio text system.
TA
Traffic Announcement: a digital flag which instantaneously
switches an RDS receiver onto road information reports. At the end
of the report, the receiver will automatically go back to its former
operating state.
TDC
Transparent Data Channel: a transmission path which enables
the broadcaster to broadcast diverse types of digital data for
specific services. This function is not intended for FM network
listeners.
TMC
Traffic Message Channel: a road information system in real time,
used by navigation terminals, such as Garmin, embedded in
vehicles. Messages are broadcast in "localization code" and "event
code" form conforming to EN12313-1 to 12313-5 CEN (European
Standards Committee) standards.
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
TNGD
Transmitter Network Group Designation: definition of the group
number and range associated to a transmitter sending paging calls.
TP
Traffic Program: a digital flag showing RDS receivers that the
allocated station is likely to broadcast road information. The TP
code does not ensure receiver switching during road
announcements; it simply lets the listener know if the station offers
this type of information.
Universal Time Clock: digital source regularly transmitting UTC
(universal time) and Julian date with time zone differential
UTC
C.2.
Detector filters
de-emphasis
De-emphasis filter applied when audio signals are
received (50 μs or 75 μs depending on the country).
P-P/2
Value (peak+max) - (peak -max)/2
RMS
Root – Mean –Square value, a widely used form of
averaging various signals.
unweighted
Unweighted filter conforming to the CCIR 468-4
norm.
weighted
Weighted filter conform to the CCIR 468-4 norm.
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Navigator Modulation Analyzer 1.6.x user’s manual – 09/2008
APPENDIX D: FOR FURTHER INFORMATION
Please contact
The Audemat Group
20, avenue Neil Armstrong - Parc d'Activités J.F. Kennedy
33700 BORDEAUX – MERIGNAC
FRANCE
Tel : +33 (5)57 928 928 | Fax: +33 (5)57 928 929
Hotline: [email protected]
USA :
Audemat Inc
19595 NE 10th Ave, Suite A
Miami FL 33179
USA
Tel : +1 (305)249 31 10 | Fax: +1 (305) 249 31 13
Hotline: [email protected]
Page 77
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NAVIGATOR MODULATION ANALYZER
TEST AND MEASUREMENT EQUIPMENT
TECHNICAL SPECIFICATIONS
Date: 2008/08/27
Audemat® is a registered trademark of the Audemat Group.
Audemat-Aztec SA – Audemat-Aztec INC
web: www.audemat-aztec.com - e-mail: [email protected]
Navigator Modulation Analyzer 1.6.x, Technical Specifications – 08/2008
CONTENT
1. MEASUREMENT SPECIFICATIONS USING THE RF INPUT................................3
1.1. RF.....................................................................................................................3
1.2. Demodulated signals ........................................................................................4
1.2.1. MPX .............................................................................................................4
1.2.2. Pilot ..............................................................................................................4
1.2.3. RDS..............................................................................................................5
1.2.4. DARC ...........................................................................................................5
1.2.5. Power measurement for the MPX channel ...................................................6
1.3. Ouputs ..............................................................................................................7
1.3.1. Composite MPX /AUX outpput .....................................................................7
1.3.2. AES output ...................................................................................................8
1.3.3. L and R analog outputs ................................................................................9
1.3.4. Headphone outputs ....................................................................................10
1.4. Multiplex decoder / AF stereo signals specifications ......................................11
1.5. Distortion tool..................................................................................................11
1.6. L&R channel noise measure...........................................................................11
1.7. De-emphasis filters .........................................................................................11
2. INTERNAL GENERATOR SPECIFICATIONS......................................................12
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Navigator Modulation Analyzer 1.6.x, Technical Specifications – 08/2008
1. MEASUREMENT SPECIFICATIONS ON THE RF INPUT
Optimal specifications are guaranteed for a ambient temperature range from +20°C
to +30°C (68°F to 86°F), with a warm-up time of: 15 minutes
1.1. RF
Frequency range (Tuning: manual)
Input impedance (BNC connector)
Frequency measurement:
• RF level range: -25 dBm to +10 dBm.
Frequency resolution
Power measurement
• -40 dBm to+10 dBm
• -50 dBm to-40 dBm
RF level for best precision on demodulated
signals
Min.
87,5
Typ.
Max.
108
Unit
MHz
Ω
± 70
± 100
1
Hz
Hz
± 0.2
± 0.8
± 0.4
± 0.5
dB
50
-25/+10
-30/+15
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dBm
Navigator Modulation Analyzer 1.6.x, Technical Specifications – 08/2008
1.2. Demodulated signals
1.2.1. MPX
Frequency range
Measurable deviation
Absolute deviation measurement precision
(Faf=1kHz)
• Deviation between±500 Hz and ±2 kHz
• Deviation between± 2 kHz and ±80 kHz
• Deviation between± 80 kHz and ±150
kHz
Min.
0.01
Typ.
Max.
90
±150
Unit
kHz
kHz
± 0.5
± 0.2
± 1.0
± 0.5
%
± 0.5
± 1.0
1.2.2. Pilot
Min.
Bandpass filter frequency
Rejection
• 15 kHz
• 23 kHz
Measurable deviation
Absolute pilot deviation measurement precision
• Measurement range: 0.1 to ±15 kHz
Pilot frequency resolution
Pilot Frequency measurement precision
• Measurement range: 1 to ±15 kHz
Typ.
19
Max.
>70
± 0.8
± 0.3
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Unit
kHz
dB
± 15.0
KHz
± 1.0
%
0.1
Hz
± 0.5
Hz
Navigator Modulation Analyzer 1.6.x, Technical Specifications – 08/2008
1.2.3.
RDS
Bandpass filter bandwidth (-3dB)
Rejection (compared to F0)
• 53 kHz
• 61 kHz
Ripple within the band from 55 kHz to 59 kHz
Measurable deviation
Absolute RDS deviation measurement precision
- Sine wave
• Deviation between±1 kHz and ±2 kHz
• Deviation between±2 kHz and ±10 kHz
Absolute RDS deviation measurement precision
- Data
• Deviation between±1 kHz and ±2 kHz
• Deviation between±2 kHz and ±10 kHz
1.2.4.
Min.
54.3
Typ.
Max.
59.7
Unit
kHz
>70
dB
<0,3
dB
KHz
± 10.0
± 1.2
± 0.5
± 1.5
± 0.8
± 0.8
± 0.6
± 1.2
± 1.0
%
%
DARC (76 kHz)
Bandpass filter bandwidth (-3dB)
Rejection (compared to F0)
• 60 kHz
• 93 kHz
Ripple within the band from 64 kHz to 88 kHz
Measurable deviation
76 kHz deviation measurement precision– Sine
wave
• Deviation between±1 kHz and ±2 kHz
• Deviation between±2 kHz and ±15 kHz
76 kHz deviation measurement precision – Data
• Deviation between±1 kHz and ±2 kHz
• Deviation between±2 kHz and ±15 kHz
Min.
62,4
Typ.
Max.
89,6
Unit
kHz
>50
dB
<0,4
dB
KHz
± 15.0
± 2.0
± 3.0
± 1.2
± 3.0
± 1.5
± 3.5
± 1.3
± 1.6
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%
%
Navigator Modulation Analyzer 1.6.x, Technical Specifications – 08/2008
1.2.5.
Power measurement for the MPX channel
Frequency range
Max error
• With sine wave signal @ 1 kHz
for -10 dBr < P < 9dB
• With random signal @ 1 kHz
for -10 dBr < P < 9dB
Min.
0.01
Typ.
Max.
90
Unit
kHz
±0,08
±0,10
dB
±0,30
±0,50
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Navigator Modulation Analyzer 1.6.x, Technical Specifications – 08/2008
1.3.
Outputs
1.3.1.
Composite MPX /AUX output
Possible output signals
A
B
C
D
E
F
Connector
Type
No signal
MPX base band
Pilot signal
RDS subcarrier signal
Sine wave 1 generator signal
Sine wave 2 generator signal
BNC
unbalanced – chassis ground
Frequency range
Max error @ +12 dBvcc @ 1 kHz
MPX signal response curve (reference 1 kHz
@ ±75 kHz deviation)
• 10 Hz with 53 kHz @ 12 dBvcc
• 53 kHz with 90 kHz @ 12 dBvcc
Stereo separation (Reference L=R @ ±75
kHz of deviation, without filter, without deemphasis , RMS detection) :
• Fmod = 1 kHz
• 20 Hz < Fmod < 15 kHz
Min.
0.01
Typ.
±0,3
Max.
90
±0,5
Unit
kHz
dB
±0,1
+0/-0,2
±0,15
+0/-0,3
dB
>67
>52
>65
>50
dB
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Navigator Modulation Analyzer 1.6.x, Technical Specifications – 08/2008
1.3.2.
AES output
A
B
C
D
E
F
G
H
I
Connector
Type
Signals that can be assigned to channel 1 and 2
No signal
L channel signal without de-emphasis
R channel signal without de-emphasis
M channel signal
S channel signal
L channel signal with de-emphasis
R channel signal with de-emphasis
Sine wave 1 generator signal
Sine wave 2 generator signal
XLR 3 male
Balanced
Frequency range
Max error for the output level @ +12 dBu @ 1
kHz
Max variation between L and R channels
Response curve @ +12 dBu
• 10 Hz – 15 kHz
Distortion (THD + N). Reference L=R @ ±75
kHz deviation, without filter, without deemphasis:
• within the band 10 Hz – 2 kHz
• within the band 2 kHz – 15 kHz
Signal/Noise (reference 0 dBFS with Fmod = 500
Hz @ ±75 kHz deviation, de-emphasis = 50 µs /
Level RF = 0 dBm) :
• Mono signal, RMS, without filter
• Mono signal, weighted CCIR quasi-peak
• Stereo signal, RMS, without filter
• Stereo signal, weighted CCIR quasi-peak
Stereo separation (L/ R & R/L), Reference L=R
@ ±75 kHz deviation, without filter, without deemphasis , RMS detection
• 20 Hz < Fmod < 15 kHz
Min.
0.01
Typ.
Max.
15
Unit
kHz
±0,2
±0,3
dB
<±0,07
<±0,1
dB
±0,10
±0,20
dB
%
<0,09
<0,06
<0,1
<0,07
> 95
> 93
> 88
> 85
> 92
> 90
> 83
> 80
>63
>60
Page 8
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dB
dB
Navigator Modulation Analyzer 1.6.x, Technical Specifications – 08/2008
1.3.3.
L and R analog outputs
A
B
C
D
E
F
G
H
I
Connector
Type
Signals that can be assigned to channel 1 and 2
No signal
L channel signal without de-emphasis
R channel signal without de-emphasis
M channel signal
S channel signal
L channel signal with de-emphasis
R channel signal with de-emphasis
Sine wave 1 generator signal
Sine wave 2 generator signal
XLR 3 male
Balanced
Frequency range
Max error for the output level @ +12 dBu @ 1
kHz
Max variation between L and R channels
Response curve @ +12 dBu
• 10 Hz – 15 kHz
Distortion (THD + N). Reference L=R @ ±75
kHz deviation, without filter, without deemphasis:
• within the band 10 Hz – 2 kHz
• within the band 2 kHz – 15 kHz
Signal/Noise (reference 0 dBFS with Fmod = 500
Hz @ ±75 kHz deviation, de-emphasis = 50 µs /
Level RF = 0 dBm) :
• Mono signal, RMS, without filter
• Mono signal, weighted CCIR quasi-peak
• Stereo signal, RMS, without filter
• Stereo signal, weighted CCIR quasi-peak
Stereo separation (L/ R & R/L), Reference L=R
@ ±75 kHz deviation, without filter, without deemphasis , RMS detection
• 20 Hz < Fmod < 15 kHz
Min.
0.01
Typ.
Max.
15
Unit
kHz
±0,2
±0,3
dB
<±0,0
7
<±0,1
±0,10
±0,20
<0,09
<0,06
<0,1
<0,07
> 89
> 86
> 80
> 77
> 88
> 85
> 78
> 75
>63
>60
dB
dB
%
Page 9
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dB
dB
Navigator Modulation Analyzer 1.6.x, Technical Specifications – 08/2008
1.3.4.
Headphone outputs
Output signal: dependant on equipment settings:
Channel 1
A
L channel signal without deemphasis
B
M channel signal
C
M channel signal
D
L channel signal with de-emphasis
E
F
Sine wave 1 generator signal
Sine wave 2 generator signal
Connector
Type
Output level
Channel 2
R channel signal without deemphasis
S channel signal
M channel signal
R channel signal with deemphasis
Sine wave 1 generator signal
Sine wave 2 generator signal
Jack 6.35mm (1/4”) female
Unbalanced, floating ground
Adjustable by the user on the front panel
Page 10
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Navigator Modulation Analyzer 1.6.x, Technical Specifications – 08/2008
1.4.
Multiplex decoder / AF stereo signals specifications
Frequency range
Max error with a mono or stereo L=R or stereo
L=-R signal @ 1 kHz
Max error with a mono or stereo L=R or stereo
L=-R signal
• 1 kHz @ 0 dBu
• 10 Hz – 15 kHz @ 0 dBu
Min.
0.01
>50
dB
±0,05
±0,1
dB
dB
THD, THD+N
F2, F3, F4, F5
Frequency range
Measurement range
Max signal deviation for an internal distortion
rate < 0,5 %
Residual THD in the equipment from 10 Hz – 15
kHz @ ±75 kHz of deviation
Frequency resolution
Min.
0.01
0,01
Typ.
Max.
15
100
Unit
kHz
%
±180
kHz
<0,005
%
0,1
Hz
L&R channel noise measurements
Frequency range
Measurement range
Equipment residual noise rate (reference 0
dBFS with Fmod = 500 Hz @ ±75 kHz of
deviation, de-emphasis = 50 µs / RF level = 0
dBm) :
• Mono signal, RMS, without filter
• Mono signal, weighted CCIR quasi-peak
• Stereo signal, RMS, without filter
• Stereo signal, weighted CCIR quasi-peak
1.7.
Unit
kHz
Distortion tool
Measurement types
Harmonics displayed
1.6.
Max.
15
±0,03
+0,08/
-0,05
<±0,02 <±0,03
Variation between L and R channels
1.5.
Typ.
Min.
0.01
-80
Typ.
> 95
> 93
> 88
> 85
> 92
> 90
> 83
> 80
De-emphasis filters
Type
Max.
15
+6
0 µs, 50 µs, 75 µs
Page 11
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Unit
kHz
dBu
dB
Navigator Modulation Analyzer 1.6.x, Technical Specifications – 08/2008
2. INTERNAL GENERATOR SPECIFICATIONS
Frequency range
Frequency step
1
Min.
0.01
Typ.
0.1
Max.
90 1
Unit
kHz
Hz
90k in the case of composite and AUX MPX outputs; 24kHz in the case of audio outputs
Page 12
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