Quick Links
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
Related Manuals for HP 8901A
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.