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3

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 

µ

s, 50 

µ

s, 75 

µ

s, and 750 

µ

s.

De-emphasis filters are single pole low pass
filters whose 3 dB frequencies are 6366 Hz for
25 

µ

s, 3183 Hz for 50 

µ

s, 2122 Hz for 75 

µ

s, and

212 Hz for 750 

µ

s.

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%.

Rear Panel Inputs/Outputs

Supplemental Characteristics

FM Output: 10 k

 impedance, 

9 V to 6 V into an

open circuit: ~6 V/MHz, dc coupled, 16 kHz
bandwidth (one pole).

AM Output: 10 k

 impedance, 

4 V to 0 V into an

open circuit, ~8 mV/%, dc coupled, 16 kHz
bandwidth (one pole).

Recorder Output: DC voltage proportional to peak

voltage of the modulation output, 1 k

 imped-

ance, 0 V to 4 V for each resolution range into
an open circuit.

IF Output: 50 

 impedance, 150 kHz to 2.5 MHz,

27 dBm to 

3 dBm.

10 MHz Reference Output: 50 

 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 

 impedance,

0.5 V

peak-to-peak

 minimum input level.

LO Input (Option 003): 50 

 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 

peak

 deviation nominal, internally

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.

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.

Summary of Contents for 8901A

Page 1: ...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 Hzrms at 1300 MHz decreasing linearly with frequency to 1 Hzrms for 100 MHz and below Supplemental Characteristics Maximum...

Page 2: ...ld be terminated with their characteristicimpedance 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 After30 daywarm up Standard Option 002 Aging Rate 1 x 10 6 mo 1 x 10 9 day Temperature Effects 2 x 10 7 C 2 x 10 10 C Line Voltage Effects 1 x 10 6 ...

Page 3: ...h 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 Recorder Output DC voltage proportional to peak voltage of the modulation output 1 kΩ imped ance 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 ope...

Page 4: ...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 no...

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