HP 8901B

Performance Tests
FM TESTS
Specification
Model 8901B
Performance Test 2
Characteristic
FREQUENCY MODULATION
Rated5)
Deviations(')
Demodulated Output
Distortion(4f5)
Performance Limits
20 Hz to 10 kHz
20 Hz to 200 kHz
20 Hz to 20 kHz
40 kHz peak maximum
400 kHz peak maximum
40 kHz peak maximum
f2% of reading
fl digit
fl% of reading
fl digit
f5% of reading
fl digit
<0.1% THD
<0.1% THD
Conditions
150 kHz to 10 MHz carrier
10 to 1300 MHz carrier
10 to 1300 MHz carrier;
750 ps de-emphasis
150 Hz to 10 MHz carrier
10 to 1300 MHz carrier
10 to 1300 MHz carrier;
750 ps de-emphasis
250 kHz to 10 MHz carrier;
20 Hz to 10 kHz rates:
<40 kHz peak deviation
10 to 1300 MHz carrier;
50 Hz to 100 kHz rates;
<400 kHz peak deviation;
<40 kHz peak deviation
with
750 ps de-emphasis
10 to 1300 MHz carrier;
20 Hz to 200 kHz rates;
<400 kHz deviation;
<40 kHz peak deviation
with
750 ps de-emphasis
400 kHz to 10 MHz carrier;
20 Hz to 10 kHz rates;
<lo kHz peak deviation
10 to 1300 MHz carrier;
20 Hz to 100 kHz rates;
400 kHz peak deviation;
<40 kHz peak deviation
with
750 ps de-emphasis
(l) But not to exceed 50 kHz rates with rms detector.
(2) Peak residuals must be accounted for in peak readings. (Refer to Residual Noise Effects in Detailed
Operating lnstructions in Section 3.)
(3) For rms detector, add f3% of reading.
(4) With 750 ps de-emphasis and pre-display "off", distortion is not specified for modulation outputs >4V
peak. This can occur near maximum deviation for a measurement range at rates <2 kHz.
But not to exceed
20 kHt rates and 40 kHz peak deviation with 750 ps de-emphasis.
4-8 Performance Test 2