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HP 8901A Specifications

Modulation analyzer 150 khz to 1300 mhz
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HP 8901A Modulation Analyzer
150 kHz to 1300 MHz
Technical Specifications
All parameters describe performance in automatic operation or
properly set manual conditions. Specifications describe the
instrument's warranted performance. Supplemental characteris-
tics (shown in italics) are intended to provide information useful
in applying the instrument by giving typical, but non-warranted,
performance parameters.
RF Input
Frequency Range: 150 kHz to 1300 MHz.
Operating Level:
150 kHz to 650 MHz: 12 mV
(1 W
).
peak
650 MHz to 1300 MHz: 22 mV
(1 W
).
peak
Supplemental Characteristics
Tuning: Automatic, track (frequencies >10 MHz),
manual frequency entry.
Acquisition Time (automatic operation): ~1.5
second.
Input Impedance: 50
nominal.
Maximum Safe Input Level:
AC: 35 V
(25 W for source SWR <4)
rms
DC: 40 V
Frequency Modulation
Rates:
150 kHz to 10 MHz: 20 Hz to 10 kHz.
10 MHz to 1300 MHz: 20 Hz to 200 kHz
Deviations:
150 kHz to 10 MHz: 40 kHz peak maximum.
10 MHz to 1300 MHz: 400 kHz peak maximum
1 Maximum rate 20 kHz and peak deviation 40 kHz with 750 s
de-emphasis filter.
2 Peak residuals must be accounted for in peak readings.
3 With 750 s de-emphasis and pre-display "off," distortion is not
specified for modulation autopilots >4 V peak. This can occur near
maximum deviation for a measurement range at rates <2 kHz.
4 For optimum flatness, cables should be terminated with their
characteristic impedance.
( 25 dBm) to 7 V
rms
rms
( 20 dBm) to 7 V
rms
rms
1
.
1
.
H
Outstanding signal
characterization
2
Accuracy:
250 kHz to 10 MHz: ±2% of reading ±1 digit, 20 Hz
to 10 kHz rates.
10 MHz to 1300 MHz: ±1% of reading ±1 digit, 50 Hz
to 100 kHz rates.
±5% of reading ±1 digit, 20 Hz to 200 kHz rates.
Demodulated Output Distortion:
400 kHz to 10 MHz: <0.1% THD, deviations <10 kHz.
10 MHz to 1300 MHz: <0.1% THD, rates and
deviations <100 kHz.
AM Rejection (for 50% AM at 400 Hz and
2
1 kHz rates):
<20 Hz peak deviation measured
in a 50 Hz to 3 kHz BW.
Residual FM (50 Hz to 3 kHz BW): <8 Hz
1300 MHz, decreasing linearly with frequency
to <1 Hz
for 100 MHz and below.
rms
Supplemental Characteristics
Maximum Deviation Resolution:
1 Hz, <4 kHz deviation.
10 Hz, 4 kHz to 40 kHz deviation.
100 Hz, 40 kHz to 400 kHz deviation.
Resolution: Is increased one digit with 750 s
de-emphasis and pre-display on.
Demodulated Output Distortion: 150 to 400 kHz;
<0.3% THD, deviations <10 kHz.
Detectors: + peak, - peak, and average (rms sine
wave calibrated).
Demodulated Output Across an Open Circuit
(600
output impedance):
1 mV/Hz when resolution is 1 Hz.
0.1 mV/Hz when resolution is 10 Hz.
0.01 mV/Hz when resolution is 100 Hz.
Stereo Separation (50 Hz to 15 kHz): >47 dB.
Phase Modulation
Carrier Frequency: 10 MHz to 1300 MHz.
Rates: 200 Hz to 20 kHz.
3
at
rms
4

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  Summary of Contents for HP 8901A

  • Page 1 HP 8901A Modulation Analyzer 150 kHz to 1300 MHz Outstanding signal Technical Specifications characterization All parameters describe performance in automatic operation or Accuracy: properly set manual conditions. Specifications describe the 250 kHz to 10 MHz: ±2% of reading ±1 digit, 20 Hz instrument’s warranted performance.
  • Page 2 Deviation and Maximum Resolution: Demodulated Output Distortion: <0.3% THD for 50% depth, <0.6% THD for 95% depth. FM Rejection (at 400 Hz and 1 kHz rates, 50 Hz 0.1 Radian to 3 kHz BW): Resolution 250 kHz to 10 MHz: <0.2% AM for <5 kHz peak deviation.
  • Page 3 RF Level Recorder Output: DC voltage proportional to peak voltage of the modulation output, 1 k imped- (Peak voltage responding, rms sine wave power ance, 0 V to 4 V for each resolution range into calibrated). an open circuit. Range: 1 mW to 1 W. IF Output: 50 impedance, 150 kHz to 2.5 MHz, Accuracy: ±2 dB, 150 kHz to 650 MHz.
  • Page 4 Hewlett-Packard Company Test and Measurement Call Center Options P.O. Box 4026 Englewood, CO 80155-4026 HP 8901A Modulation Analyzer (tel) 1 800 452 4844 Option 001: Rear panel instead of front panel connections Canada: Hewlett-Packard Canada Ltd. for input, modulation output, calibrators.