HP 8648 A/B/C/D - Changpuak.ch

Deviation Accuracy (internal 1 kHz rate)
Rates
Internal
< 1001 MHz
< 2001 MHz
5 4000 MHz
Option lE2
External DC
External AC
Distortion (1 kHz rate, THD + N, 0.3 to 3 kHz BW)
< 1001 MHz
< 2001 MHz
5 4000 MHz
(88 to 108 MHz)
Carrier frequency accuracy relative to CW in dc FM*
f3% of FM deviation f30 Hz
f3% of FM deviation f60 Hz
f3% of FM deviation f120 Hz
400 Hz or 1 kHz
10 Hz to 20 kHz
dc to 150 kHz (typical, 3 dB BW)
1 Hz to 150 lcHz (typical, 3 dB BW)
< 1% at deviations > 4 kHz
< 1% at deviations > 8 kHz
< 1% at deviations > 16 kHz
(< 0.5% at deviations 5 75 kHz)
< 1001 MHz flO0 Hz (typically 40 Hz) at deviations < 10 kHz
< 2001 MHz f200 Hz (typically 80 Hz) at deviations < 20 kHz
5 4000 MHz f400 Hz (typically 160 Hz) at deviations < 40 kHz
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* Specifications apply over the 25 f5 OC range within 1 hour of DC FM calibration.
FM + FM Internal 1 kHz or 400 Hz source plus external. In internal
plus external FM mode, the internal source produces the set
level of deviation. The external input should be set to
5 f0.5 Vpk or 0.5 Vdc (one-half of the set deviation).
Phase Modulation
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Peak Deviation Range
4-6 Specifications
< 249 MHz 0 to 10 radians
< 501 MHz 0 to 5 radians
< 1001 MHz 0 to 10 radians
< 2001 MHz 0 to 20 radians
< 4000 MHz 0 to 40 radians
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