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HP 8921A
Option 500 TDMA Cell site Test System
The HP 8921A Option 500
adds the HP 83204A TDMA/CDPD Cellular Adapter to the HP 8921A to provide
testing of TDMA (IS-136) base station equipment. This unit adds Pi/4 DQPSK
signal generation and analysis to the powerful analog features of the
standard HP 8921A. A custom screen provides control of the TDMA source
and provides selection of several measurement modes, making all test results
visible in one place. CDPD Mobile Data Base Station (MDBS) test features
and PCS test capability can be added to the HP 8921A Option 500 TDMA test
capabilities.
Features:
- Reduced maintenance time with automated testing
- Standardized testing with proven test procedures
- Both analog and digital (TDMA) test capabilities
- Pi/4 DQPSK signal generation and analysis
- Ease of setup with graphical displays
- Complete testing from manufacturers' procedures
- Optional CDPD Mobile Data Base Station (MDBS) test capability
- Upgrade to PCS test with the HP 83236B PCS Interface
Specifications:
Signal Generator
Frequency Range: 250 kHz to 1000 MHz
Output
Level Range: -137 to -19 dBm into 50 ohms
Output Level Accuracy:
+/-1.8 dB (level >/=-127 dBm) Typically +/-1.0 dB for all levels
Harmonics:
<-30 dBc
Non-Harmonic Spurious: <-60 dBc (at >5 kHz offset
from carrier)
TDMA Signal Generator HP 8921A Option 500, 503 or
HP 8921A plus HP 83204A Option 001, 003
Output Level Range: RF
In/Out:-22 dBm to -127 dBm Duplex: +4 dBm to -127 dBm
Residual Error
Vector Magnitude: <3.0%
Residual Phase Error: <3 degrees
Residual Magnitude Error: <3.0%
IQ Origin Offset: <-30
dBc within +/-15 degrees C of last calibration
Frequency Error:
+/-4 Hz plus reference
RF Analyzer:
Measurement Range: 400 kHz to 1000 MHz
Level Range: RF In/Out:
1 mW to 60 W continuous 100 W for 10 seconds/minute ANT In: -36 dBm to +20
dBm
Frequency Measurement Accuracy: +/-1 Hz plus timebase accuracy
Power Measurement Range: 30 MHz to 1000 MHz
Power Measurement
Accuracy: +/-5% of reading +/-1 mW (for inputs >/=200 mW at 25 degrees
+/-10 degrees C)
TDMA Analyzer 8921A Option 500, 503 or HP 8921A
plus HP 83204A Option 001, 003
Input Level Range:
RF In/Out:
1 mW to 60 W (0 to +47.78 dBm)
Antenna: -36 dBm to +16 dBm
Residual
Error Vector Magnitude: <2.0%
Error Vector Magnitude Measurement
Accuracy: 0.4% + 2% of reading
I/Q Origin Offset Accuracy: +/-0.5
dB for values to -40 dBc
Frequency Error Accuracy: +/-2 Hz plus reference
Spectrum Analyzer
Frequency Range: 400 kHz to 1000 MHz
Frequency Span/Resolution
Bandwidth (coupled): Span Bandwidth <50 kHz 300 Hz <200 kHz 1
kHz <1.5 MHz 3 kHz <18 MHz 30 kHz >/=18MHz 300 kHz, Plusfull span
capability
Display: Log with 10 dB/div,2 dB/div, or 1 dB/div
Display
Range: 80 dB
Reference Level Range: +50 to -50 dBm
AF Analyzer
Frequency Measurement Range: 20 Hz to 400 kHz
Frequency Measurement
Accuracy: +/-0.02% plus resolution plus reference oscillator accuracy
AC Voltage Measurement Range: 0 to 30 Vrms
AC Voltage Measurement
Accuracy: (20 Hz to 15 kHz, inputs >/=1 mV): +/-3% of reading
DC
Voltage Measurement Range: 100 mV to 42 V
DC Voltage Measurement
Accuracy: +/-1.0% of reading plus DC offset
CDPD Specifications
The following CDPD specifications apply when the HP 83204A option 002
or 003 is operating with the HP 8921A.
CDPD Signal Generator (at HP 8921A Duplex Out)
Output:
Level
Range and Level Accuracy: Same as HP 8921A
Reverse Power: Sameas
HP 8921A
Frequency Range: Same as HP 8921A
Frequency Accuracy:
±500Hz, typically ±50Hz
Spectral Purity: Spurious Signals, Adjacent
Channels: <-26 dBc Spurious Signals, First Alternate Channel: <-45
dBc Spurious Signals, Second Alternate Channel: < 60 dBc
Switching
Speed: Typically <150 msec to be within 1 kHz
Transmitter On/Off
Level and Timing: >15 dB down in <1msec
Modulation Type:
GMSK with BT=0.5
Modulation Accuracy: <5% error in modulation
index
CDPD Analyzer
RF Frequency Range: Same as HP 8921A
Input Level Range: Sameas HP 8921A
RF Power Measurement: Accuracy: RF in/out: 5%, ±0.01 mW (at 25ˆ¯10°C)
for single signal >200 mw 10% over full temperature range
Frequency Error Accuracy: Time base accuracy ±1 Hz
Modulation Index Accuracy: <0.1% error in modulation index
Adjacent Channel Power measurement floor: Typically -45 dBc
Alternate Channel Power measurement noise floor: Typically -55
dBc for input levels > -34 dBm
Ordering Information:
HP 8921A
Option 500 TDMA Cell site Test System
Includes Standard manuals and accessories.
NIST traceable calibration certificate, and a 6-month warranty.
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