Atec Agilent-8901A User Manual

HP 8901A Modulation Analyzer
150 kHz to 1300 MHz
Technical Specifications
H
Outstanding signal characterization
All parameters describe performance in automatic operation or properly set manual conditions. Specifications describe the instrument’s warranted performance. Supplemental characteris­tics (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
).
(−25 dBm) to 7 V
rms
(−20 dBm) to 7 V
rms
rms
rms
Supplemental Characteristics
Tuning: Automatic, track (frequencies >10 MHz),
manual frequency entry.
Acquisition Time (automatic operation): ~1.5
second.
Input Impedance: 50 Ω 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 kHz1.
Deviations:
150 kHz to 10 MHz: 40 kHz peak maximum. 10 MHz to 1300 MHz: 400 kHz peak maximum1.
1 Maximum rate 20 kHz and peak deviation 40 kHz with 750 µs
de-emphasis filter.
2 Peak residuals must be accounted for in peak readings.
3 With 750 µs 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.
Accuracy:
2
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:
3
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
1 kHz rates):2 <20 Hz peak deviation measured
in a 50 Hz to 3 kHz BW.
Residual FM (50 Hz to 3 kHz BW): <8 Hz
rms
at 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 µs
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 Ω output impedance):
4
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.
Deviation and Maximum Resolution:
400
0.1 Radian Resolution
40
0.01 Radian Resolution
4
0.001 Radian
Peak phase deviation (radians)
Resolution
200 Hz 1 kHz 10 kHz 20 kHz
Modulation rate
Accuracy: 2 ±3% of reading ±1 digit. Demodulated Output Distortion: <0.1% THD. AM Rejection (for 50% AM at 1 kHz rates):
2
<0.03 radians, peak deviation.
Supplemental Characteristics
Modulation Rates: Usable from 20 Hz to 100 kHz
with degraded performance.
Detectors: + peak,−peak, average (rms sine wave
calibrated).
Demodulated Output across an Open Circuit
(600 Ω output impedance):
4
1 V/rad when resolution is 0.001 radian.
0.1 V/rad when resolution is 0.01 radian.
0.01 V/rad when resolution is 0.1 radian.
Amplitude Modulation
Rates:
150 kHz to 10 MHz: 20 Hz to 10 kHz. 10 MHz to 1300 MHz: 20 Hz to 100 kHz.
Depth: to 99%. Accuracy:
150 kHz to 10 MHz: ±2% of reading ±1 digit,
50 Hz to 10 kHz rates, >5% depth. ±3% of reading ±1 digit, 20 Hz to 10 kHz rates.
10 MHz to 1300 MHz: ±1% of reading ±1 digit,
50 Hz to 50 kHz rates, >5% depth. ±3% of reading ±1 digit, 20 Hz to 100 kHz rates.
Flatness (variation in indicated AM depth for
constant depth on input signal):
10 MHz to 1300 MHz: ±0.3% of reading ±1 digit, 90 Hz to 10 kHz rates, 20 to 80% depth.
2, 5
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
to 3 kHz BW):
250 kHz to 10 MHz: <0.2% AM for <5 kHz
2
peak
deviation. 10 MHz to 1300 MHz: <0.2% AM for <50 kHz
peak
deviation.
Residual AM (50 Hz to 3 kHz BW): <0.01%
rms
.
Supplemental Characteristics
Maximum Depth Resolution:
0.01% for depths 39.99%.
0.1% for depths 40%.
Detectors: peak [+ peak], trough [peak],
average (rms sine wave calibrated).
Demodulated Output Across an Open Circuit
(600 Ω output impedance):
4
0.1 V/percent when resolution is 0.01%.
0.01 V/percent when resolution is 0.1%.
Frequency Counter
Range: 150 kHz to 1300 MHz. Sensitivity:
150 kHz to 650 MHz: 12 mV 650 MHz to 1300 MHz: 22 mV
Accuracy: Reference accuracy ±3 counts of least
significant digit.
Internal Reference:
Frequency: 10 MHz. Aging Rate: <1x10−6/month.
(Optional: <1x10−9/day)6.
Supplemental Characteristics
Modes: Frequency, and frequency error (displays
the difference between the frequency entered via the keyboard and the actual RF input frequency).
Sensitivity in Manual Tuning Mode: Approximate
frequency must be entered from keyboard.
0.22 mV
(−60 dBm).
rms
Maximum Resolution:
10 Hz for frequencies <1 GHz.
100 Hz for frequencies 1 GHz.
Internal Reference Accuracy: Overall accuracy
is a function of time base calibration ± aging rate ± temperature effects ± line voltage effects
± short term stability.
(−25 dBm).
rms
(−20 dBm).
rms
2 Peak residuals must be accounted for in peak readings. 4 For optimum flatness, cables should be terminated with their
characteristic impedance.
5 For peak measurements only, AM accuracy may be affected by
distortion generated by the modulation analyzer. In the worst case this can decrease accuracy by 0.1% of reading for each 0.1% of distortion
6 After 30-day warm-up
Standard Option 002
Aging Rate <1 x 10
Temperature Effects <2 x 10 Line Voltage Effects <1 x 10
-6
/mo. <1 x 10
-7
/° C <2 x 10
-6
(+5%, −10% line voltage change)
Short term stability <1 x 10
2
<6 x 10
-9
-9
/day
-10
/° C
-10
for 1s average
RF Level
(Peak voltage responding, rms sine wave power
calibrated).
Range: 1 mW to 1 W. Accuracy: ±2 dB, 150 kHz to 650 MHz.
±3 dB, 650 MHz to 1300 MHz.
SWR: <1.5 in a 50 system.
Supplemental Characteristics
Typical Accuracy:
150 kHz to 650 MHz: ±1.0 dB. 650 MHz to 1300 MHz: ±1.5 dB.
Resolution:
0.1 mW for levels 0.1 to 1 W.
0.01 mW for levels 0.01 to 0.1 W.
0.001 mW for levels <0.01 W.
Audio Filters
High Pass (3 dB cutoff frequency): 50 Hz and
300 Hz.
Low Pass (3 dB cutoff frequency except
>20 kHz filter): 3 kHz, 15 kHz, >20 kHz.
De-emphasis Filters: 25 µs, 50 µs, 75 µs, and 750 µs.
De-emphasis filters are single pole low pass filters whose 3 dB frequencies are 6366 Hz for
25 µs, 3183 Hz for 50 µs, 2122 Hz for 75 µs, and 212 Hz for 750 µs.
Flatness:
50 Hz High Pass: <1% at rates 200 Hz. 300 Hz High Pass: <1% at rates 1 kHz. 3 kHz Low Pass: <1% at rates 1 kHz. 15 kHz Low Pass: <1% at rates 10 kHz. >20 kHz Low Pass: <1% at rates 10 kHz.
Supplemental Characteristics
50 Hz and 300 Hz High Pass: Two pole.
3 kHz and 15 kHz Low Pass: Five pole. >20 kHz Low Pass: Nine pole bessel (typically
3 dB at 100 kHz).
High and Low Pass 3 dB Frequency Accuracy: ±3%. De-emphasis Filter Time Constant Accuracy: ±3%. Overshoot on Square Wave Modulation (>20 kHz
low pass filter 7): <1%.
Recorder Output: DC voltage proportional to peak
voltage of the modulation output, 1 kΩ imped­ance, 0 V to 4 V for each resolution range into an open circuit.
IF Output: 50 Ω impedance, 150 kHz to 2.5 MHz,
27 dBm to −3 dBm.
10 MHz Reference Output: 50 Ω impedance,
TTL levels (0 V to >2.2 V into an open circuit),
available only with Option 002 1x10
9
/day internal reference, outputs internal reference only.
10 MHz Reference Input: 8 >500 Ω impedance,
0.5 V
peak-to-peak
minimum input level.
LO Input (Option 003): 50 Ω impedance,
~1.27 MHz to 1301.5 MHz, 0 dBm.
Calibrators (Option 010)
AM Calibrator Depth and Accuracy: 33.33%
depth nominal, internally calibrated to an accuracy of ±0.1 % .
FM Calibration Deviation and Accuracy:
34 kHz
deviation nominal, internally
peak
calibrated to an accuracy of ±0.1%.
Supplemental Characteristics
Carrier Frequency: 10.1 MHz.
Modulation Rate: 10 kHz. Output Level: −25 dBm.
General
Temperature:
Operating 0° to 55 °C.
Storage: 55 °C to 75 °C.
Remote Operation: HP-IB; all functions except the
line switch are remotely controllable. HP-IB compatibility; as defined in IEEE 488-1978 is: SH1, AH1, T5, TE0, L3, LEO, SR1, RL1, PP0, DC1, DT1, C0.
EMI: Conducted and radiated interference is within
the requirements of methods CE03 and RE02 of MIL STD 461A (for inputs <10 mW), VDE 0871 (Level B), and CISPR publication 11.
Rear Panel Inputs/Outputs
Supplemental Characteristics
FM Output: 10 kΩ impedance, −9 V to 6 V into an
open circuit: ~6 V/MHz, dc coupled, 16 kHz bandwidth (one pole).
AM Output: 10 kΩ impedance, −4 V to 0 V into an
open circuit, ~8 mV/%, dc coupled, 16 kHz bandwidth (one pole).
7 The >20 kHz low pass filter is intended for minimum overshoot
with square wave modulation.
8 External reference accuracy affects accuracy of all measure-
ments.
3
Conducted and Radiated Susceptibility: Meets requirements of
methods CS01, CS02, and RS03 (1 volt/meter) of MIL STD 461A, 1968.
Power: 100, 120, 220, or 240 V (+5, 10%); 48 to 66 Hz; 200 VA max.
Weight: Net 20 kg. (44 lb.); shipping 25 kg. (55 lb.). Dimensions: 190 mm H x 425 mm W x 468 mm D
(7.5 in. x 16.8 in. x 18.4 in.).
Options
HP 8901A Modulation Analyzer
Option 001: Rear panel instead of front panel connections
for input, modulation output, calibrators.
Option 002: lx109/day internal reference oscillator.
Option 003: Rear panel connections which allow use
with an external local oscillator.
Option 004: Operation from 48 to 440 Hz power line.
Option 010: AM and FM calibrators.
Option 907: Front panel handle kit.
Option 908: Rack mounting flange kit.
Option 909: Front panel handle plus rack mounting flange kit.
Option 910: Extra manual.
Option 915: Service manual.
Related Literature:
Product Overview .............................. 5968-1287E
Price List ......................................... 5968-1285EUS
Warranty Information
This Hewlett-Packard instrument product is warranted against defects in material and workmanship for a period of one year from date of shipment. During the warranty period, Hewlett-Packard Company will at its option, either repair or replace products which prove to be defective.
For warranty service or repair, this product must be returned to a service facility designated by HP. Buyer shall prepay shipping charges to HP and HP shall pay shipping charges, duties, and taxes for products returned to HP from another country.
HP warrants that its software and firmware designated by HP for use with an instrument will execute its programming instructions when properly installed on that instrument. HP does not warrant that the operation of the instrument, or software, or firmware will be uninterrupted or error free.
Limitation Of Warranty
The foregoing warranty shall not apply to defects resulting from improper or inadequate mainte­nance by buyer, buyer-supplied software or interfacing, unauthorized modification or misuse, operation outside of the environmental specifications for the product, or improper site preparation or maintenance. No other warranty is expressed or implied. Hewlett-Packard specifically disclaims the implied warranties of merchantability and fitness for a particular purpose.
For more information about Hewlett­Packard test and measurement products, applications, services, and a current sales office listing, visit our web site: http://www.hp.com/go/tmdir
You can also contact one of the follow­ing centers and ask for a test and measurement sales representative.
United States:
Hewlett-Packard Company Test and Measurement Call Center P.O. Box 4026 Englewood, CO 80155-4026 (tel) 1 800 452 4844
Canada:
Hewlett-Packard Canada Ltd. 5150 Spectrum Way Mississauga, Ontario L4W 5G1 (tel) (905) 206 4725
Europe:
Hewlett-Packard European Marketing Centre P.O. Box 999 1180 AZ Amstelveen The Netherlands (tel) (31 20) 547 9900
Japan:
Hewlett-Packard Japan Ltd. Measurement Assistance Center 9-1, Takakura-Cho, Hachioji-Shi, Tokyo 192-8510, Japan (tel) (81) 426 56 7832 (fax) (81) 426 56 7840
Latin America:
Hewlett-Packard Latin American Region Headquarters 5200 Blue Lagoon Drive, 9th Floor Miami, Florida 33126 U.S.A. (tel) (305) 267-4245 (tel) (305) 267-4220 (fax) (305) 267-4288
Australia/New Zealand:
Hewlett-Packard Australia Ltd. 31-41 Joseph Street Blackburn, Victoria 3130 Australia (tel) 1 800 629 485 (Australia) (tel) 0800 738 378 (New Zealand) (fax) (61 3) 9210 5489
Asia Pacific:
Hewlett-Packard Asia Pacific Ltd. 17-21/F Shell Tower, Times Square, 1 Matheson Street, Causeway Bay, Hong Kong (tel) (852) 2599 7777 (fax) (852) 2506 9285
ã 1982 Hewlett-Packard Co. Data subject to change Printed in U.S.A. 7/98 5968-1286E
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