Agilent
E7474A TDMA Drive-Test System
Data Sheet
The Agilent Technologies E7474A TDMA drive-test system is used to
obtain RF coverage and service performance measurements for wireless communications networks using IS-136, IS-54 and AMPS technologies. A PC interfaces with an Agilent digital RF receiver and/or a
TDMA mobile phone. The system can control up to four receivers and
four phones simultaneously.
System software
The system software can control Agilent digital RF
receivers and TDMA/AMPS mobile phones. Multiple measurements can be made simultaneously. All measurements
can be displayed in real-time and logged to a database. Six
system software options are available:
•Option 100: TDMA phone-based software license
•Option 110: TDMA receiver-based software license
•Option 120: TDMA receiver and phone-based soft
ware license
•Option 150: TDMA multiple phone capability soft–
ware license
•Option 160: Real-time mapping software license
•Option 180: Indoor measurement capability soft–
ware license
Option 120 combines all of the function of Options 100 and
110 into a single integrated package. Options 100 and 120
have the capability to control a single TDMA/ AMPS mobile
phone. Option 150 adds multiple phone control capability
to Options 100 and 120.
Phone-based software
The E7474A options 100 and 120 provide the functionality
described below for a single TDMA/AMPS mobile phone
option. Option 150, when combined with option 100 or 120,
extends the phone-based software to include up to four
mobiles. The E7474A TDMA Drive Test System supports the
Motorola StarTAC TDMA phone. The phone option requires
a connection to a PC.
To connect the Motorola StarTAC TDMA mobile phone to
the PC, a cable is required. Agilent offers a choice of cables
for the StarTAC TDMA handsets:
•86154A Option 730 – Cable for Motorola StarTAC
TDMA phone. This cable provides communication
between the phone and the PC.
•86154A Option 731 – Powered cable for the Motorola
StarTAC TDMA phone. This cable provides communic–
tion between the phone and the PC and also provides
DC power to the phone using the auto cigarette lighter
adapter.
The phone-based function of the Agilent E7474A
system is comprised of five primary elements:
•Phone control
•Phone measurements
•Messaging
•Hand-off history
•Large font display
Each element has an associated control and display
window called a virtual front panel (VFP).
2
Phone control
The PC software provides automated control of the phone.
The phone control VFP provides the control functions listed
below.
Call controls
• Call initiation mode
• Sequence
• Single (long) call
• Call mode preference
• Digital preferred
• Force digital
• Force analog
• Call initiation control
• Start / continue
• Pause
• Stop
• Automatic call sequencing
• Access time
(duration of call)
• Redial wait
(duration between calls)
• Total calls (number of calls to be executed)
• Automatic redial
• On a dropped call
• On a blocked call (failed origination)
• Redial interval (wait duration after drop or block)
• Maximum redial attempts
• Phone number pick list
State controls
• Channel display units
• Channel number
• Frequency units
Statistics logging controls
• Attempted calls
• Dropped calls
• Blocked calls
(failed originations)
In addition to the control function, the phone control VFP
displays the information listed below in a tabular format.
Tabular display (text)
• Channel
• Status (conversation, idle, etc.)
• Access time counter
• Redial time counter
• Calls remaining counter
• Total attempts
• Total drops
• Total blocks
• Dropped call rate = total drops / total attempts
• Blocked call rate = total blocks / total attempts
Figure 2. Phone measurements
Messaging
The Agilent E7474A extracts and decodes layer three overthe-air messaging from the handset. The user can select
any or all of the message types listed below to extract and
decode.
Message type selection controls
Figure 1. Phone control
Phone measurements
The E7474A system extracts measurement data from the
mobile handset. Extraction of the specific measurement
types is controlled by a set of check boxes. The data types
are listed below.
Display fields (text)
• Server data
• Channel
• Channel set
• Time slot
• RSSI
• MAC
• Timing advance
• BER
• Color code
• Site
• Mobile data
• State
• Status
(TDMA, analog, etc.)
• MIN
• Best MAHO
• Channel
• RSSI
• System data
• System identifica–
tion (SID)
• Home or Roam
• Provider (A,B, etc.)
Bar graph display
• Serving channel
• MAHO channels
• Cell site name
• Digital
• RACH
• F-BCCH
• E-BCCH
• SMSCH
• PCH
• ARCH
• RDTC-FACCH
• RDTC-SACCH
• FDTC-FACCH
• FDTC-SACCH
• Analog
• RECC
• FOCC
• RVC
• FVC
Strip-chart display
• RSSI
• MAC
• BER
• Timing advance
• Best MAHO RSSI
• Hand-off
• Reselection
Figure 3. Messaging
3
In the messaging display the user can double-click on any
message to show the next level of detail. A snapshot function captures the last 50 messages in a separate window
while the main display continues to update and record new
messages.
Message logging controls
• Log to display
• Snapshot
Hand-off history
The hand-off history VFP displays a tabular list of handoffs and reselections. Each hand-off or reselection is displayed as two lines. The top line displays the values of the
key parameters immediately prior to the hand-off or reselection. The bottom line displays the same parameters
immediately following the hand-off or reselection.
Tabular display of hand-offs and reselections (text)
• Hand-off or reselection indicator (H or R)
• Time
• Delta RSSI (RSSI after – RSSI before)
• Key parameters before and after
• Serving channel
• RSSI
• BER
• Status (TDMA, analog, etc.)
• Site
• Channel set
• Color code
• Timing advance
• Time slot
• MAC
Large font display
The large font display allows the user to select a specific
set of parameters. The selected parameters are displayed
in large, easily viewable text. The parameters that can be
selected are:
• Serving channel
• Channel set
• Time slot
• RSSI
• MAC
• Timing advance
• BER
• Color code
• Site
• State (conversation, idle, etc.)
• Status (TDMA, analog, etc.)
• MIN
• SID
• Best MAHO channel
• Best MAHO RSSI
• Home or roam
• Provider
Figure 5. Large font display
Multiple phone capability
The Agilent E7474A Option 150, when combined with
Option 100 or 120, extends the phone-based software function to include up to four mobile phones. Multiple phones
are connected to the PC using dual Socket I/O cards which
provide two serial ports each. These cards are included
with Options 100, 120, and 150. The All Phones window
pane in the call control VFP allows the user to control dialing functions of any or all of the phones from a single window.
Use of multiple phones can significantly improve optimization efficiency. Some applications of multiple phone configurations:
Figure 4. Hand-off history
4
• Simultaneously evaluate hand-offs and reselections
• Execute origination and dropped call testing simultane–
ously
• Execute measurements on your network and a
competitive network simultaneously
In multiple phone configurations, each phone communicates with the PC using a dedicated serial port. Each phone
requires a connection to the PC.
To connect the Motorola StarTAC TDMA mobile phone to
the PC, a cable is required. Agilent offers a choice of cables
for the StarTAC TDMA handsets:
• 86154A Option 730 – Cable for the Motorola StarTAC
TDMA phone. This cable provides communication
between the phone and the PC.
• 86154A Option 731 – Powered cable for the
Motorola StarTAC TDMA phone. This cable provides
communication between the phone and the PC and
also provides DC power to the phone using the auto
cigarette lighter adapter.
Receiver-based software
The E7474A software Options 110 and 120 provide the
function described below. The software can control up to
four Agilent digital RF receivers.
The receiver-based function of the E7474A system is comprised of five primary elements:
Spectrum analysis
The spectrum display provides the controls listed below.
Frequencies can be specified in terms of
frequency units or channel number.
Measurement controls
• Frequency, tunable range1
• Cellular band receiver (Option 300 or 310)
• 824 to 849 MHz [819 to 854]
• 869 to 894 MHz [864 to 899]
• PCS band receiver (Option 320 or 330)
• 1850 to 1910 MHz [1845 to 1915]
• 1930 to 1990 MHz [1925 to 1995]
• Frequency, maximum span1
• Cellular band receiver (Option 300 or 310)
• 25 MHz [35]
• PCS band receiver (Option 320 or 330)
• 60 MHz [70]
• IF bandwidth
• 1.25 MHz (wideband mode)
• 30 kHz (narrowband mode)
• Resolution bandwidth
• 8.36 kHz to 1 MHz in wideband mode
• 246 Hz to 28 kHz in narrowband mode
• Spectrum analysis
• CW power
• Channel power
• Adjacent channel interference
• Channel analyzer
Each element has an associated control and display window called a VFP.
The controls listed below are available for the receiver measurements:
• Measurement interval
• Time
• Distance
• Averaging
• Running
• Group
• Max Hold
• At Least (CW and channel power only)
The measurement interval defines the duration between
measurements. This can be specified in terms of time (e.g.,
execute a measurement every 200 milliseconds), or distance (e.g., execute a measurement every 10 meters). If the
user defines an interval that the system can not achieve, a
busy light indicates this condition.
1. Spectrum measurement allows tuning 5 MHz above and below frequency
ranges. These extended ranges are shown in brackets[]. The performance is
not specified in these ranges. Characteristic noise floor increase is 2 dB with
respect to specified range. Characteristic amplitude accuracy is unchanged
with respect to specified range.
5
Markers
CW power and channel power
• Multiple markers
• Delta markers
• Marker to max
• Marker value to center frequency
• Drag and drop
Spectrum noise floor (characteristic):1
Narrowband mode / 300 kHz span
Wideband mode / 300 kHz span
Narrowband mode / 25 MHz span
Wideband mode / 25 MHz span
Average
-139 dBm
-128 dBm
-132 dBm
-123 dBm
Peak
-131 dBm
-119 dBm
-129 dBm
-117 dBm
Minimum sweep speed (characteristic):1
Narrowband mode
Wideband mode
1 MHz / sec
70 MHz / sec
The Agilent E7474A can measure the peak power,
CW power, at user-defined frequencies within a userdefined resolution bandwidth. The systems can also measure the total power, channel power, within a user-defined
bandwidth at a user-defined set of frequencies. Channel
power differs from the CW power measurement in that the
total power is integrated across the specified channel
width. The user can define the frequencies measured in
two different ways, indicated below.
Frequency entry methods
• List: enter an arbitrary list of frequencies. A user list
can also be imported from a text file.
• Trace: enter a start frequency, step size and count. The
system measures at the start frequency, at the (start +
step) frequency, ... , (start + (count - 1)*step) frequency.
For example, if the start frequency is set to 1900 MHz,
the step size is set to 1 MHz, and the count is set to 4;
then measurements are made at 1900 MHz, 1901 MHz,
1902 MHz and 1903MHz.
Frequencies can be specified in terms of frequency units or
channel number.
Measurement controls
Figure 6. Spectrum
• Frequency
• Arbitrary list (list)
• Start / step / count (trace)
• IF bandwidth
• 1.25 MHz (wideband mode)
• 30 kHz (narrowband mode)
• Resolution bandwidth (CW power only)
• 8.36 kHz to 1 MHz in wideband mode
• 246 Hz to 28 kHz in narrowband mode
• Channel width (channel power only)
• Cellular band receiver (Option 300 or 310)
• 8.36 kHz to 25 MHz in wideband mode
• 246 Hz to 25 MHz in narrowband mode
• PCS band receiver (Option 320 or 330)
• 8.36 kHz to 60 MHz in wideband mode
• 246 Hz to 60 MHz in narrowband mode
Figure 7. CW/channel power
1.
6
Does not imply warranted performance, but rather characteristic perfor–
mance. Tested with minimum resolution bandwidth; 246 Hz in narrowband
mode, 8.46 kHz in wideband mode.
Adjacent channel interference
Channel analyzer
The adjacent channel power VFP measures the power of a
serving channel and the upper and lower adjacent channels. This function is primarily intended for use in systems
with Option 120. Typically, the center channel frequency of
the adjacent channel interference measurement is linked to
the serving channel of the phone. When the phone is handed off to a new channel, the adjacent channel interference
measurement tunes to the new channel.
The channel analyzer VFP provides channel power measurements with controls designed specifically for TDMA
and AMPS channels. The channel width is fixed at 30 kHz.
The receiver can decode the DVCC of each of the six channels displayed in the VFP. The decoded DVCC can be displayed above the bar for each channel. When performing
DVCC decode, the color of the bars in the VFP indicate
their channel type. Green bars are digital control channels
(DCCH), blue bars are TDMA traffic channels, and red bars
are unrecognized channels. The user can enable the cell
site naming feature. Location and control information is
correlated to a cell site name using the cell site information
file.
The adjacent channel interference measurement can also
be used independently from the phone. A user can define a
specific channel to measure along with the associated
upper and lower adjacent channels.
Two independent adjacent channel interference measurements are provided in a single VFP. This is intended for
two phone configurations. Each adjacent channel interference measurement can be linked to one of the phones.
Measurement controls
Display fields (text)
• Frequency units
•Frequency
•Channel
• Server to adjacent chan
nel deltas
•C/(N-1)
– server to lower adjacent
•C/(N+1)
– server to lower adjacent
• Cell Site Name
Display controls
• Display mode
•Amplitude vs. channel
(frequency)
•Amplitude vs. time
• Displayed measurement
•Channel power
•DVCC
Figure 8. Adjacent channel power
Measurement types
• All channels:
The system measures the power of all of the channels
in a user specified range. The results are displayed as a
trace with one point for each channel.
• Top N:
The system measures all of the channels in a user
specified range and returns the N channels with the
highest power. N is a user definable integer from 1
to 20. Results are displayed in bar graph format. The
user can enable the cell site naming feature. Location
and control information is correlated to a cell site
name using the cell site information file.
• User list:
The user manually inputs a list of up to 250 channels
to be measured. The measurements are displayed in
bar graph format—up to 20 bars. The user can enable
the cell site naming feature. Location and control
information is correlated to a cell site name using
the cell site information file. If more than 20 channels
are in the user list, all channels are measured and
recorded, but only 20 channels will be displayed. A
user list can also be imported from a text file.
• DVCC decode:
The receiver can decode the DVCC of each channel
displayed in the VFP. The decoded DVCC can be
displayed above the bar for each channel. When
performing DVCC decode, the color of the bars in
the VFP indicate their channel type. Green bars are
digital control channels (DCCH), blue bars are TDMA
traffic channels, and red bars are unrecognized
channels.
Figure 9. Channel analyzer
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Indoor measurement software
(E7474A Option 180)
The indoor measurement VFP provides the ability to make
phone-based or receiver-based TDMA wireless measurements inside of buildings. While walking through a building, waypoints are recorded on a floor plan of the building.
Measurements are interpolated between waypoints. Indoor
measurements require a floor plan or sketch of the building to be measured. This floor plan can be in .gif, .tif, or
.png format.
An essential part of the indoor measurement system is a
pen tablet computer which allows the user to correlate
measurements with positions on a floor plan. Additional
accessories are available which provide a simple, ergonomic way of making indoor measurements (see E7474A TDMA
Drive-Test System Configuration Guide, literature number
5968-5861E).
Indoor measurement features
• Autoscale
• Autopan
• Auto legend
• Ability to link and plot phone or receiver measurements
• Ability to save plot as .tab file (Mapinfo)
• Waypoints with interpolation
• Moveable waypoints
Figure 10. Indoor measurement VFP
Alerts and alarms
The E7474A drive-test system has sophisticated alarm
capabilities. An alert is defined as a single condition on a
single measurement. An alarm is a Boolean expression
made up of multiple conditions on multiple measurements.
If the alert or alarm condition occurs while data is being
logged, each data record includes the alert and alarm information.
The alarm wizard provides fast, easy setup of commonly
used alarms. The alarms available for TDMA via the wizard
are listed below.
• Dropped call
• High BER
• Low RSSI
• Hand-off
• Hand-off (From–To)
• Analog to analog
• Digital PCS to analog
• Digital Cellular to analog
• Analog to Digital PCS
• Analog to Digital Cellular
• Digital PCS to Digital Cellular
• Digital Cellular to Digital PCS
• Digital Cellular to Digital Cellular
• Digital PCS to Digital PCS
• Reselection
• Reselection (From–To)
• Analog to analog
• Digital PCS to analog
• Digital Cellular to analog
• Analog to Digital PCS
• Analog to Digital Cellular
• Digital PCS to Digital Cellular
• Digital Cellular to Digital PCS
• Digital Cellular to Digital Cellular
• Digital PCS to Digital PCS
• Low delta RSSI on hand-off
• No GPS fix
• No location fix
• Low disk space
• Low battery
• No AC power
• High CPU usage
When an alert or alarm condition occurs, any or all of the
actions listed below can be executed.
8
Actions
• Play a .wav audio file
• Display a text message
• Pause or stop measurements
Alert operators
• Value
• Maximum
• Minimum
Alarm operators
• Value
• Maximum
• Minimum
• Sub-set
• OR
• AND
• XOR (exclusive OR)
Alert conditions
• Greater than (>)
• Greater than or equal to (≥)
• Less than (<)
• Less than or equal to (≤)
• Equal to (=)
• Not equal to (≠)
Alarm conditions
• Greater than (>)
• Greater than or equal to (≥)
• Less than (<)
• Less than or equal to (≤)
• Equal to (=)
• Not equal to (≠)
• Is a sub-set
• Is not a sub-set
• Sets intersect
• Sets do not intersect
Any measurement can be an operand in an alert or alarm.
Below are some examples to illustrate alerts and alarms.
Real-time mapping
The E7474A Option 160 software license provides real-time
data mapping. A single measurement parameter is plotted
on the map, in color-coded thematic format, as the data is
collected base stations are plotted on the map with site
names, sector orientations and channel sets. Alarms are
plotted on the map. Double- clicking on the alarm symbol
displays the corresponding alarm text message.
Measurement parameters that can be plotted on a map
• Phone measurements
• RSSI
• Serving channel
• Best MAHO channel
• BER
• Best MAHO RSSI
• MAC
• Timing advance
• Large font
• RSSI
• Serving channel
• Best MAHO channel
• BER
• Best MAHO RSSI
• MAC
• Timing advance
• Handoff history
• Serving channel
• Call control
• Serving channel
• Adjacent channel power measurement
• Adjacent channel A frequency
• Adjacent channel B frequency
• CW and channel power
• Max CW power list
• Max CW power trace
• Max power channel list
• Max power channel list
An indicator line is drawn from the current location to the
serving sector.
Alerts:
•Value(BER) > 2.0%
•Maximum(Channel Analyzer power) < -90 dB
Alarms:
•(Value(BER) > 2.0%) AND (RSSI > -80 dB)
System status parameters can also be used as operands in
alerts and alarms. For example, an alert can be defined to
trigger when the available disk space on the PC drops
below 10 MB or when the GPS position fix is lost.
System status parameters
• Available disk space
• GPS fix
• Location
• Velocity
• Percent CPU usage
• PC battery level
• PC AC power
• Time of day
9
Measurement parmeters that can represent
serving sector
• Phone measurements
• Serving channel
• Best MAHO channel
• Large font
• Serving channel
• Best MAHO channel
• Handoff history
• Serving channel
• Call control
• Serving channel
• Adjacent channel power measurement
• Adjacent channel A frequency
• Adjacent channel B frequency
Data recording and playback
Logging and playback of data are controlled by VCR-like
buttons. While logging data, the user can enter notes into
the data. Two methods of user note entry are provided.
One prompts the user to enter a text string, for example,
entering a tunnel. The other automatically enters a numbered note into the database requiring minimum interaction with the keyboard. A summary of record and playback features are listed below.
Record features
• User note
• Automatically numbered note
• Display on/off
• Pause/resume
• User-defined data set name
Playback features
• Play forward
• Play reverse
• Step forward
• Step reverse
• Variable speed
• Advance to alert/alarm
• Advance to user note/auto-numbered note
Data export
Figure 11. Real-time mapping display. The underlying map is in MapInfo .tab
format. The software can convert a rastor image (.gif or .tif) to .tab format, so
the user can use any map that is in .tab, .gif, or .tif format.
Data can be exported from the E7474A database for display and post-processing. All measurement data can be
exported. The export function provides flexible filtering
capability that defines which data is exported. Multiple
data types can be exported to a single output file.
The user can save export plans. Once an export plan has
been saved it can be retrieved to quickly and easily export
the desired data. An export plan is made up of:
• Data type(s):
Defines which data will be exported. Column order is
user definable.
• Alarms:
Defines which alarms will be exported.
• Processing functions:
Defines the functions that will be applied to the data
during export.
• Exclusion rules:
Defines a set of conditions that, if true, the
associated data will be excluded from the export.
• Geographic binning:
Data-reduction process in which the data is averaged
over geographic area or distance.
Several different operations can be executed in order to
provide the desired data in the desired format.
10
Processing functions
Report generator and display printing
• All values
• Count – counts number of values above or below a
specified threshold
• Count with summary – same as count with a text file
summarizing the results
• Maximum
• Minimum
• Value(x)
The E7474A provides fast and easy report generation. All of
the current displays (VFP) are captured to an HTML file.
Each report includes a header section. After selecting generate report, a dialog box prompts the user to enter the
header information listed below. Smart defaults and persistent information are used, so minimal text entry is
required.
Conditionals
Header elements
• Greater than (>) a threshold
• Less than (<) a threshold
• All values
• Qualified against another measurement
•
•
•
•
•
•
•
Sorting
• Ascending
• Descending
• None
Title
User name
Company
Time
Date
Location–defaults to current GPS fix
Comments–user entered notes
There is no limit to the number of reports that can be generated. Reports can be generated during playback as well
as during live data collection.
Geographic binning methods
• Grid–drive area is overlaid by a grid of user-defin–able size. The average of the data over each square
is reported.
•Linear distance–user defines a drive distance over
which to average. The average of the data over each
segment of that distance is reported.
• None
The system is designed to work with MapInfo in an integrated manner via an object link embedded (OLE) link to
the MapInfo application. This exports the data, launches
MapInfo, creates the necessary MapInfo tables, and creates
a thematic map display in MapInfo. This function requires
that MapInfo be present. MapInfo is not included with the
E7474A system. The supported output formats are listed
below.
Data output formats
• ArcView-compatible file
• MapInfo via com
• MapInfo-compatible file
• PlaNET-compatible file
• Text file
Any VFP can be printed by selecting the print command from
the file menu.
Mapping software
MapInfo can be launched from within the Agilent E7474A,
providing transparent integration between mapping information and measurement data. In addition, the E7474A can
output data in ASCII format, allowing the user to import
data into other applications (see data export section).
RF receiver hardware
There are four digital RF receiver options for the
Agilent E7474A system:
• Option 300:
• Option 310:
• Option 320:
• Option 330:
Cellular band receiver
Cellular band receiver with internal
GPS receiver
PCS band receiver
PCS band receiver with internal GPS
receiver
11
E7474A drive-test systems with Options 110 or 120 have
software functions for controlling the receivers. The system
supports any combination of receivers, up to a total of four.
Using multiple receiver configurations can greatly improve
drive-test efficiency for applications such as measuring at
850/1900 MHz borders, simultaneously measuring 850 and
1900 in overlay areas, simultaneously monitoring both forward and reverse links, and monitoring competitive networks.
In multiple receiver configurations the receivers communicate with each other via a high speed serial ring.
Communication with the PC is done via a single RS-232
link to one of the receivers in the ring.
Each receiver option includes:
• RF antenna for the corresponding frequency band
• Cable to connect to other receivers
• Cable to connect to PC
• Kit for mounting receiver in a vehicle
• AC/DC power supply
• Cigarette lighter power cord
• GPS antenna and cables (Options 310 and 330 only)
Agilent digital RF receiver specifications
(E7474A Options 300, 310, 320 and 330)
Frequency
Range1
Options 300, 310
Options 320, 330
Frequency accuracy
With GPS time
synchronization
IF bandwidth
Aging of TCXO
824-849 MHz [819-854]
869-894 MHz [864-899]
1850-1910 MHz [1945-1915]
1930-1990 MHz [1925-1995]
± 1 ppm
± .05 ppm characteristic
1.25 MHz characteristic
30 kHz characteristic
± 1 ppm/year
Amplitude
Accuracy
1.25 MHz IF
bandwidth
± 1 dB; ± 0.5 dB typical
(20 – 30 ∞C, -40 to -100 dBm)
± 2 dB (0 – 55 ∞C, -40 to -100
dBm)
30 kHz IF
bandwidth
± 1.5 dB; ± 0.5 dB typical
(20 – 30 ∞C, -40 to -100 dBm)
± 2.5 dB (0 – 55 ∞C, -40 to -100
dBm)
Noise figure
8 dB typical
Internally generated
spurious
-120 dBm
Maximum safe input
level
+10dBm, 20V DC
characteristic
1 dB compression point -15 dBm characteristic
Adjacent channel
desensitization2
Adjacent channel
rejection3
-25 dBm typical
45 dB typical
Input/output
RF input
50 Ω type-N
1. Spectrum measurement allows tuning 5 MHz above and below frequency ranges. These extended ranges are shown in brackets–[]. The performance is not speci–
fied in these ranges. Characteristic noise floor increase is 2 dB with respect to specified range. Characteristic amplitude accuracy is unchanged with respect to
specified range.
2. Adjacent channel desensitization applies to the wideband mode (1.25 MHz IF filter) and is defined as 1 dB compression of tuned signal with interfering signal
+/-1.25 MHz from tuned signal.
3. Adjacent channel rejection applies to the narrowband mode (30 kHz IF filter) and is defined as: suppression of interfering signal +/-30 kHz from tuned signal.
Note: Specifications describe warranted performance over the temperature range of 0 to 55 °Celsius and include a 30-minute warm-up from ambient conditions.
Typical and characteristic information provide useful information by giving non-warranted performance parameters. Typical refers to test data at the fiftieth pecentile
for a 25 °Celsius room temperature. Characteristic information describes product information for parameters that are either not subject to variation, nonmeasur–
able, verifiable through functional pass/fail tests, or as a matter of routine not measured.
12
Connectors
Computer
GPS
Power
Agilent 86154A Option 210
RS-232 (DB9) male
RS-232 (DB9) male
DC power jack 100 mils,
positive center
Misc
Operating
temperature range
Storage
temperature range
Dimensions
Weight
Power with Internal GPS
(Options 310, 330)
0 to 55 ∞C
-40 to 70 ∞C
6 in x 3 5/8 in x 8 in
4.5 lbs
9-34 V DC, 9W
9-34 V DC, 10W
GPS
The Agilent E7474A system has the ability to work with
several types of GPS interfaces. The system is compatible
with the communications protocols listed below. The physical interface is RS-232 with a DB9 connector.
• Trimble Placer GPS 455 with dead reckoning
• Heading sensor
• Interconnect adapter (to connect to the
Agilent RF receiver)
• Interconnect cables
• Bulkhead mount antenna with cable
• Magnetic mount antenna with cable
• Differential compatible
* DOES NOT PROVIDE mechanical or electrical
devices for connection to odometer pulse.
The Agilent E7474A software includes a VFP for the GPS
receiver. This window displays a bar graph with the individual satellite signal strengths (TSIP protocol only), a text
display of the GPS statistics and a map of location history.
This map also displays the base station locations and
names.
External GPS receivers communicate with the E7474A via
an RS-232 serial connection. The table below lists several
GPS receiver models and the associated requirements for
connection to an E7474A system.
Compatible protocols
• TAIP
• TSIP
• NMEA
Two different GPS receiver configurations are available
from Agilent for our drive-test systems. E7474A receiver
Options 310 and 330 include GPS receivers mounted inside
the receiver enclosure. This configuration provides excellent portability and convenience.
86154A Option 210 adds a Trimble Placer GPS 455 receiver
with dead reckoning for external connection to the system.
GPS receiver with Option 310, 330
• 8 channel GPS receiver
• Mounted inside Agilent RF receiver enclosure
• SMA antenna connector
• Bulkhead mount antenna with cable
• Magnetic mount antenna with cable
• Differential compatible
• Not dead reckoning compatible
GPS receiver model
Trimble Placer GPS/DR
Trimble Placer GPS 455
Trimble SveeSix
Trimble Placer GPS 400
Interconnect requirement
Straight-through RS-232 cable
Straight-through RS-232 cable
Straight-through RS-232 cable
Straight-through RS-232 cable
When a GPS receiver is purchased from Agilent, all necessary interconnect parts are provided. For other models of
external GPS receivers, consult an Agilent representative
for interconnect requirements.
Differential GPS can be used with the E7474A drive-test
systems, provided the GPS receiver being used is differential compatible. Agilent 86514A Option 230 adds a differential GPS receiver to the system.
86154A Option 230: differential GPS receiver
• Differential corrections, incorporated RDS-3000
• Magnetic mount antenna
• Interconnect cables
* Option 310 and 330 receivers do not support
connection to external GPS receivers.
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Handset compatibility
Computer hardware
The E7474A can interface with the handsets listed below.
This list is complete as of the time of this printing. The
TDMA handsets are not available from Agilent. Contact
your Agilent representative regarding handset compatibility and availability plans.
The Agilent E7474A system requires a PC. The minimum
PC requirements are listed. If you wish to
purchase a laptop computer with the system, the Agilent
86154A Option 010 adds a Hewlett-Packard OmniBook.
Compatible Handsets
• Motorola StarTAC ST7790 TDMA/AMPS – 800 MHz
• Motorola StarTAC ST7797 TDMA/AMPS –
800/1900MHz
To connect a Motorola StarTAC TDMA mobile phone to the
PC, an interface cable is required. Agilent offers a choice of
cables for the StarTAC TDMA handsets:
• 86154A Option 730 – Cable for Motorola StarTAC
TDMA phone. This cable provides communication
between the phone and the PC.
• 86154A Option 731 – Powered cable for the Motorola
StarTAC TDMA phone. This cable provides communication between the phone and the PC and also
provides DC power to the phone using the auto
cigarette lighter adapter.
Minimum PC requirements
• Pentium® processor (233 MHz)
• Windows® 95, 98 or Windows NT® (4.0 or greater)
• RS-232 (DB9) serial port
• PCMCIA slot (two if using more than two phones)
• 32 MB RAM if using Windows 95 or 98
• 64 MB RAM if using Windows NT
• 50 MB disk space for software installation
• 400 MB disk space recommended for data
• CD-ROM drive recommended
• 800 x 600 display resolution
Agilent 86154A Option 010 PC specifications
• HP OmniBook 6000
• Pentium II processor (700 MHz)
• Windows 98
• 128 MB RAM
• 10 GB hard disk
• 8x DVD-ROM drive
• Enhanced lithium ion battery pack
• 14.1 inch active matrix display
• 1024 x 768 display resolution
More information on the HP Omnibook can
be found at http://www.hp.com.
1. The Indoor Measurement Capability software license does not support the Nokia
6160 phone at this time.
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Portability accessories
Training
The Agilent E7474A TDMA Drive Test System is a lightweight, portable system. The accessories option, 86154A
option 531, adds a carrying case.
One day of on-site start-up assistance is provided with
Options 110 and 120.
Technical support
86154A Option 531 – briefcase carrier
The carrying case is intended for transporting the E7474A
TDMA Drive Test System. The case measures 17in. x 14in.
x 5in and accommodates one Agilent digital receiver, one
test mobile, a laptop PC, and the necessary cabling.
The drive test system was not intended for operating from
within the carrying case.
Vehicle mounted display system
accessories options
The Vehicle Mounted Display System (VMDS), accessories
Option N3419A, improves safety, boosts efficiency, and
allows real-time troubleshooting while using the E7474A
TDMA Drive Test System.
N3419A – vehicle mounted display system
The Vehicle Mounted Display System consists of a bright,
rugged, and adjustable pedestal mounting, and a custom
keypad. The permanently mounted display system allows
users to monitor network impairments as they happen
without taking their eyes off the road.
One year of on-line technical support is provided with
Options 100, 110 and 120.
Warranty
One-year warranty on hardware components is included
with the E7474A system. Extended warranties and calibrations services are also available:
E7474A Option W30
Two years additional (three years total) warranty on
hardware components
E7474A Option W32
Three years return calibration service
E7474A Option W50
Four years additional (five years total) warranty on
hardware components
E7474A Option W52
Five years return calibration service
Additional literature
E7474A TDMA
Drive-Test System
Configuration Guide
5968-5861E
E7474A TDMA
Drive-Test System
Product Overview
5968-8689E
Indoor Wireless
Measurement System
Product Overview
5968-8691E
Vehicle Mounted
Display System
Product Overview
5980-0721E
Visit our website at:
www.agilent.com/find/serviceproviders
15
Agilent Technologies’ Test and Measurement Support,
Services, and Assistance
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test and measurement capabilities you paid for and obtain the support you need. Our extensive support resources and services can
help you choose the right Agilent products for your applications and
apply them successfully. Every instrument and system we sell has a
global warranty. Support is available for at least five years beyond the
production life of the product. Two concepts underlie Agilent's overall
support policy:
"Our Promise" and "Your Advantage."
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will meet its advertised performance and functionality. When you are
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Experienced Agilent engineers and technicians worldwide can help
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For more assistance with your test
and measurement needs go to:
www.agilent.com/find/assist
Or contact the test and measurement experts at Agilent
Technologies
(During normal business hours)
Phone or fax:
United States:
(tel) 1 800 452 4844
Canada:
(tel) 1 877 894 4414
(fax) (905) 282-6495
China:
(tel) 800-810-0189
(fax) 1-0800-650-0121
Europe:
(tel) (31 20) 547 2323
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Japan:
(tel) (81) 426 56 7832
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Korea:
(tel) (82-2) 2004-5004
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Taiwan:
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Email: tm_asia@agilent.com
Product specifications and descriptions in this document subject to
change without notice.
Copyright © 2001 Agilent Technologies
Printed in USA June 27, 2001
5968-5556E
Pentium® is a U.S registered trademark of Intel Corporation.
Microsoft®, Windows® and Windows NT® are U.S. registered trademarks of Microsoft Corporation.
Nokia phone is a product of Nokia.
Hewlett-Packard OmniBook is a product of Hewlett-Packard.
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