4500B - Boonton Power Meters RF
Peak Power Analyzer
specs
4500B
T
The Boonton Model 4500B is the instrument
of choice for capturing, displaying, analyzing
and characterizing RF power in both the time
and statistical domains. Applications include
pulsed RF such as RADAR, TDMA and GSM,
pseudorandom or noise-like signals such as
CDMA and WLAN and modulated time slotted signals such as GSM-EDGE and
TD-SCDMA.
The 4500B features 100 psec timebase resolution, video bandwidth greater than 35 MHz
(sensor dependent), flexible triggering and
greater than 60 dB dynamic range (sensor
dependent) without any range switching to
cover the most demanding peak power
measurement applications. The 4500B also
features continuous statistical analysis of
power (optional) at acquisition rates up to 25
MSa/s, a text display of up to 15 automatic
measurements per channel as well as
envelope and persistence views to provide
fast in-depth signal analysis. Convenient I/O
including USB ports for storing data such as
instrument setups, trace waveforms and bit
map image files.
FEATURES
n 8.4" TFT color LCD display
n Displays up to 4 measurement channels, 2
memory channels and 1 math channel
simultaneously
n Automatic peak-to-peak, delay-by-time and
delay-by-events triggering
n Statistical analysis including gated CCDF and PDF
with linear or log presentation (optional)
n Text view of up to 15 time and power
measurements per channel
n Envelope, persistence and roll mode displays
n GPIB, USB and LAN
25 Eastmans Road
Parsippany, NJ 07054 U.S.A.
Phone: +1 (973) 386-9696
Fax: +1 (973) 386-9191
Email: [email protected]
Web site: www.boonton.com
Large Display:
View multiple
channels and measurements on the 8.4 Inch
Color TFT display
Wide Dynamic Range:
Peak
power sensors are available from 1 MHz to 40 GHz,
some with greater than 60 dB dynamic range
Powerful Automatic
Measurements: One button
text key automatically displays up to 15
power and time measurements per channel
Superior Time Capture:
View signals from 5 nsec/div to 1 hr/div with
100 psec resolution
High Bandwidth
Sensors: Peak power sensors
Precise Measurements:
are available, some with video bandwidth greater than 35 MHz and
risetimes less than 15 ns
Markers and time gates allow for the
analysis of specific portions of a waveform
Dual Trigger System:
Interactive Control:
Most
settings can be selected and updated
interactively with instant visual feedback
Internal and external trigger with auto
peak-to-peak and B trigger delay by
time or events qualifier
Clear Views:
Persistence, envelope and roll
mode displays aid visual analysis
Intuitive User Interface:
Convenient I/O:
Windows based
connectivity such as USB for data storage directly
to a flash drive
Easy to navigate, soft menu driven
-2-4-
Fast Data Analysis:
Accurate Auto-Calibration:
Statistical displays of PDF, CDF and CCDF
including time-gated analysis (optional)
Precision 1 GHz RF step calibrator for superior
linearity and absolute level accuracy
-3Visit www.boonton.com
4 5 0 0 B R F P E A K P O W E R A N A LY Z E R
Peak Power Analyzer
specs
Peak Power Analyzer
Capture Multiple Channels, Marker Measurements,
Automatic Measurements and Status in One Display
Figure 1:
Analysis of CDMA Pulse Train with RF and Trigger Channels Updating Simultaneously
The Boonton 4500B features a large 8.4” diagonal TFT color LCD, 640 x 480 pixels,
with CCFL backlight for a clear view of up to two live RF channels, two live trigger
channels, two stored memory channels and one live math channel simultaneously.
The need to clearly view multiple channels can be invaluable in many applications. The
large color display in the 4500B is especially well suited for multiple channel applications. User selectable colors are used to distinguish overlapping traces and to color
correlate graphical channel data with its measurements. For example, if the color of the
channel 1 is yellow then the measurements calculated on channel 1 are also yellow.
The traces and measurements are clearly marked and color correlated.
The 4500B gives the user the flexibility to customize the display by allowing them to
select the measurements or specific parametric settings and measurement indicators
they wish to display. These measurements can be grouped to avoid clutter.
-4-
Figure 2:
Qualify the Trigger on a Specific Event in CDMA pulse train
The 4500B features a unique trigger qualifier that allows a user to qualify the trigger
on a specific event or a specific delay time allowing a user-selected pulse to be
captured, even when its timing is variable. Modern communications signals typically
have long frames of data and it is often important to lock a peak power acquisition to
a specific time slot or to a specific event within a group. The B trigger qualifier eliminates problematic synchronization issues associated with time jitter within pulse bursts
that are often found in UWB and RADAR applications. This qualifier may be set up to
999,999 events or up to 1 second.
-5Visit www.boonton.com
4 5 0 0 B R F P E A K P O W E R A N A LY Z E R
Capture a Signal Based on a User-Selected
Pulse or Time Delay
Peak Power Analyzer
Display the Envelope of Your Signal and Quickly
Analyze the Peaks
Figure 3:
Envelope of 802.11 WLAN Signal
The 4500B features persistence and envelope displays to aid in the analysis of noise-like
signals with complex modulation schemes such as WLAN and CDMA. Persistence and
envelope displays provide a fast view of the maximum and minimum excursions of the
signal under test. These display modes provide a clear, large screen representation of
changing signals. The combination of a large 8.4” diagonal color display with persistence and envelope displays make viewing signals far easier than with traditional
bench-top power meters.
-6-
Figure 4:
Pulsed RF including width, rise time and fall time measurements
The 4500B provides power-versus-time waveform analysis of repetitive RF signals.
Applications include TDMA and GSM, as well as RF amplifier linearity testing, RADAR,
satcom, and avionics. The timebase extends to 5 nsec/div and the logarithmic power
display will show more than 60 dB dynamic range.
Two adjustable markers can read the power at any point across the waveform. In
addition, the markers can be used to define the portion of the waveform in which the
maximum power, minimum power, long term average power and peak to average
ratios are measured. This is especially useful for characterizing the power level over a
portion of the top of a pulse.
An auto measure function measures and calculates 15 common power and timing
parameters. All parameters for up to four active channels are summarized in a Text
display and are also available as user defined display parameters above the Graph
display.
-7Visit www.boonton.com
4 5 0 0 B R F P E A K P O W E R A N A LY Z E R
Analyze Your Signal with Automatic
Measurements and Markers
Peak Power Analyzer
Analyze Your Signal with Channel Math
Figure 5:
Math functions showing the ratio between channels of two signals
Channel math can be performed on active and saved memory traces. These powerful
math functions can be used to analyze the differences between channels, making difficult measurements like output stage compression and inter-modulation distortion easy
to identify and correct. The large color display provides a clear view of the active channels and continuously updated math function. Status and measurement data is color
correlated with the associated channel or math function allowing for quick setup and
clear views of multiple channel measurements at the same time.
-8-
Figure 6:
CDMA timeslots with time gated complementary cumulative distribution function (CCDF)
Optional statistical power measurement techniques are powerful tools in measuring
noise-like signals such as CDMA, QAM, or OFDM. Complementary cumulative distribution function (CCDF) shows the peak power, average power and the peak-to-average
ratio as well as the probability of occurrence of different power levels with respect to
time. The instantaneous power values are sorted by amplitude and counted, and the
values are displayed as a power level vs. percent probability of occurrence. A powerful
analysis technique in the 4500B allows user defined intervals of signals to be gated and
the statistical distribution calculated. Time gated measurements provide analysis of
specific areas of interest on a signal.
-9Visit www.boonton.com
4 5 0 0 B R F P E A K P O W E R A N A LY Z E R
Analyze Your Signal With Time Gated
Measurements
Peak Power Analyzer
Characterize Your Signal With Fast
Statistical Analysis
Figure 7:
Analyze CDMA timeslots with time gated probability density function (PDF)
The 4500B features optional probability density functions (PDF) and cumulative distribution functions (CDF, CCDF) to accurately characterize noise-like RF such as CDMA, HDTV
and WLAN. These statistical functions build and analyze a very large population of
power samples continuously at a rate of up to 25 MHz or triggered up to 50 MHz on
two channels simultaneously. These functions are fast, accurate and allow the measurement of very infrequent power peaks for a user-defined population size or acquisition
interval. Although the programmable acquisition time can be very long or continuous,
even short runs can resolve very low probabilities, due to the extremely high sample
throughput.
- 10 -
Sensor Inputs (performance specifications are sensor model dependent)
RF Frequency Range:
Pulse Measurement Range:
Modulated Measurement Range:
Relative Offset Range:
1 MHz to 40 GHz
-40 to +20 dBm
-50 to +20 dBm
±100.00dB
Logarithmic Vertical Scale
0.1 to 50 dBm/div in 1-2-5 sequence
0.1 to 50 dBV/div in 1-2-5 sequence
0.1 to 50 dBmV/div in 1-2-5 sequence
0.1 to 50 dBuV/div in 1-2-5 sequence
1 nW/div to 50 MW/div in 1-2-5 sequence
1 mV/div to 50 kV/div in 1-2-5 sequence
<3 nsec
5 MHz (based on 10 samples per pulse)
50 MHz max
6 nsec
Linear Vertical Scale
Rise Time:
Single-Shot Bandwidth:
Pulse Repetition Rate:
Minimum Pulse Width:
Time Base
Time
Time
Time
Time
Base
Base
Base
Base
Range:
Accuracy:
Resolution:
Display:
5 nsec/div to 1 hr/div
0.01%
100 psec
Sweeping or roll mode
Statistical X-Axis (optional)
Scale:
Linear Ranges:
Linear Offset:
Log Range:
Linear or logarithmic, 1 to 7 cycles
0.1%/div to 10%/div
0 to 99.9%, 0.1% resolution
1e-9% to 100%
Trigger
Trigger Source:
Channel 1 (internal)
Channel 2 (internal, with optional channel 2)
External trigger 1
External trigger 2 (with optional channel 2)
Trigger Slope:
+ or –
Trigger Delay Range:
Time base setting
Delay range; pre trig (-), post trig (+)
5 nsec to 500 nsec
1 usec to 10 msec
20 msec to 3600 sec
-4 msec to +100 msec
±4000 divisions
-40 to +100 sec
Trigger Delay Resolution:
0.02 divisions
- 11 Visit www.boonton.com
4 5 0 0 B R F P E A K P O W E R A N A LY Z E R
specs
Peak Power Analyzer
Trigger Hold-off Range:
Trigger Hold-off Resolution:
Trigger Mode:
B Trigger Mode:
B Trigger Source:
B Trigger Slope:
B Trigger Events Counter Range:
B Trigger Time Delay Range:
B Trigger Time Delay Resolution:
Internal Trigger Level Range:
External Trigger Level Range:
External Trigger Input:
0.0 – 1.0 sec
10 nsec
Normal, auto, auto peak-to-peak, free Run
A only, B delay-by-time, B delay-by-events
Chan 1, chan 2, ext trig 1, ext trig 2
+ or –
1 to 999,999 events
0.0 – 1.0 sec
10 nsec
-40 to +20 dBm (sensor dependent)
±5 volts, ±50 volts
1M or 50 ohm, DC Coupled
Calibration Source
Operating Modes:
Frequency:
Level Range:
Resolution:
Output VSWR:
Absolute Accuracy:
Accuracy vs Level:
Preset Internal Pulse Period:
Preset Internal Pulse Duty Cycle:
Variable Pulse On Time:
Variable Pulse Period:
Pulse Polarity;
RF Connector:
External Pulse Input:
Auto-Calibration:
CW, internal pulse or external pulse
1.024 GHz ± 0.01%
-50 to +20 dBm
0.1 dB
1.20 maximum
±0.065 dB (±1.5%) at 0 dBm
add ±0.03 dB per 5 dB increment from 0 dBm
100 usec, 1 msec or 10 msec
10% to 90% in 10% increments
7 usec to 65.535 msec in 1 usec steps
28 usec to 131.072 msec in 2 usec steps
Off-time limits - within 7 usec to 65.535 msec
+ or –
Precision type N
Rear panel BNC, TTL level compatible
The calibrator is used to automatically generate linearity calibration data
for peak power sensors.
Measurement System
Sensor Inputs:
Measurement Technique:
Maximum Sampling Rate:
Memory Depth:
Vertical Resolution:
Waveform Averaging:
Number of Histogram Bins:
Size of Sample Bins:
Bin Power Resolution:
One or two sensor measurement channels.
Random repetitive sampling system that provides pre and post-trigger
data as well as statistical histogram accumulation.
50 Mega-samples/second on up to four channels simultaneously.
(Equivalent effective sampling rate of 10 Giga-samples/second)
256K samples per channel at max sampling rate
0.008%, 14-bit A/D Converter
1 to 16,384 samples per data point (time domain measurement)
16,384
32-bits (4,000 mega-samples)
<0.02 dB
- 12 -
Modes:
Sampling Rate:
Limit Count:
Limit Time:
Terminal Action:
Continuous or gated by pulse mode time markers
25 Mega-samples/second on 2 channels simultaneously.
Adjustable, 2 – 4096 Mega-samples
3600 seconds (approximately 2.5 min. at full sample rate)
Stop, flush and restart or decimate
System Displays
Display Type:
Power versus time (pulse mode)
Power versus time (modulated mode)
External trigger versus time (pulse mode)
Auto-measure text (all modes)
Help text (all modes)
Reports (sensors, configuration, calibrator, files,
stored waveforms, GPIB commands, GPIB buffers)
Statistical Display Type (Optional):
Cumulative Distribution Function (CDF)
Complementary Cumulative Distribution Function (CCDF)
Split screen, gated CCDF and power versus time (pulse mode,CCDF)
Distribution function (histogram)
External trigger statistical (statistical mode)
Auto-measure text (statistical mode)
Pulse and Modulated Mode Marker Measurements
Markers (Vertical Cursors):
Marker Independently:
Pair of Markers:
Settable in time relative to the trigger position
Power at specified time
Power at two specified times with ratio or average power between them.
The minimum and maximum power between the markers and the ratio or
average power between them.
The average power, peak power (hold) and peak-to-average power ratio
between the markers.
Lines (Horizontal Cursors):
Automatic Tracking:
Settable in power
Intersection of either marker and the waveform.
Either marker and pulse distal, mesial or proximal levels.
Statistical Mode Marker Measurements (optional)
Markers (Vertical Cursors):
Each Marker Independently:
Pair of Markers:
Settable in percent (distribution functions):
Power at specified percent
Power ratio at two specified percents.
Statistical analysis between markers (using triggered statistical mode)
Ref Lines (Horizontal Cursors):
Automatic Tracking:
Settable in power
Set to track the intersection of either marker and the distribution
function measure percent probability at a defined power level
- 13 Visit www.boonton.com
4 5 0 0 B R F P E A K P O W E R A N A LY Z E R
Statistical Acquisition (optional)
Peak Power Analyzer
Pulse Mode Automatic Measurements
Power Versus Time (Pulse) Mode:
Pulse width
Pulse rise-time
Pulse fall-time
Pulse period
Pulse repetition frequency
Pulse duty cycle
Pulse off-time
Peak power
Pulse power
Percent overshoot
Average power
Top level power
Bottom level power
Pulse edge skew between channels
Edge delay
Statistical Mode Automatic Measurements (optional)
Statistical Mode:
Peak power
Average power
Minimum power
Peak to average ratio
Dynamic range
Power at markers (absolute or normalized)
Percent at reference lines
Total time (indicated)
Total number of samples (indicated)
Waveform Storage
Storage Locations:
Waveforms and distribution functions can be saved to and recalled from
internal storage locations and removable file-based memory devices.
External Interfaces
GPIB:
RS-232C Interface 1:
RS-232C Interface 2:
USB:
LPT1:
LAN:
Programmable interface; complies with SCPI ver. 1990
Serial printer/plotter interface
Diagnostic interface
General purpose i/o interface
Parallel printer/plotter (Centronics type)
Ethernet port. Optional software required.
- 14 -
Display:
Main Computer:
Hard Disk:
Acquisition Engine:
CE Mark
Operating Temperature:
Power Requirements:
Dimensions (HWD):
Weight:
8.4” Diagonal TFT color LCD, 640 x 480 pixels, with CCFL Backlight.
Pentium based architecture
Internal EIDE 40 Gbytes
32-bit Floating Point DSP in each installed channel
Compliance for use in the European Union
0 to 50 degrees C
90 to 260 VAC, 47 to 63 Hz, 120W
19” rack-mountable; 7.0” x 17.5” x 19.5” (17.8 cm x 44.5 cm x 49.5 cm)
25 lbs (11.4 kg)
Efficient Design: Power factor
corrected power supply and thermostatically
controlled, dual-fan cooling system
Convenient I/O
Printer ports,
external monitor, LAN and USB
Remote Control:
Optional Inputs:
GPIB with SCPI
compliant command set and legacy support.
4 5 0 0 B R F P E A K P O W E R A N A LY Z E R
Other Characteristics
Replace front panel
inputs, optional trigger output
Ordering Information:
4500B
-01
-02
-03
-06
-07
-10
-30
RF Peak Power Analyzer, single channel, front panel inputs.
Dual channel, front panel inputs
Single channel, rear panel inputs
Dual channel, rear panel inputs
Trigger outputs (rear panel only)
Calibrator, rear panel output
Statistical package (includes gated CCDF and PDF)
Warranty extended to 3 years
25 Eastmans Road
Parsippany, NJ 07054 U.S.A.
Phone: +1 (973) 386-9696
Fax: +1 (973) 386-9191
©2005 Boonton Electronics (A Wireless Telecom
Group Company.) All Rights Reserved.
Specifications subject to change without notice.
Email: [email protected]
Web site: www.boonton.com
- 15 Visit www.boonton.com
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement