INTRODUCTION AND SPECIFICATIONS
Table 1-4. Typical Signal Generator Performance (cont)
RESOLUTION
ACCURACY
DISTORTION
(does not include effects of residual noise)
LOW DISTORTION MODE
(SPCL 731)
BANDWIDTH (1.5 dB)
INCIDENTAL AM
DCFM CENTER FREQUENCY ERROR ..
Afte
LOW RATE EXTERNAL FM
(Access by SPCL 711 )
MAX DEVIATION
DROOP
BANDWIDTH (3 dB)
Minimum FM rate at max deviation in any band,
ACFM mode is 60 Hz.
@ 1/2 max deviation....30 Hz
@ 1/4 max deviation....15 Hz from 1/4 to 1/64 max
deviation.... 15 Hz
@ 1/64 max deviation.... 60 Hz
@ 1/128 max deviation.... 40 Hz
@ 1/256 or less max deviation.... 15 Hz
No limit in DCFM mode.
3 digits.
±(5% of setting + 10 Hz) for rates of .05 to 50 kHz.
< 2% THD for rates from .05 to 50 kHz
< 1% THD at 1/2 or less max deviation and rates
from 0.1 to 50 kHz.
< 0.3% THD + noise @ 3.5 kHz deviation and @
rates from 0.3 to 3 kHz
ACFM 20 Hz to 100 kHz subject to low frequency
max deviation limits
DCFM DC to 100 kHz
< 1% AM at 1 kHz rate, for the maximum deviation or
100 kHz, whichever is less. Valid for RF frequency
> 0.5 MHz
<
(0.1%
of dev + 500 Hz) @ F = 1 GHz
NOTE
r DCFM Cal and without any FM range changes
RF Band MAX DEV @ 10 Hz Rate
sine wave square wave
.01 to 15 MHz 80 kHz 40 kHz
15 to 32 MHz 20 kHz 10 kHz
32 to 64 MHz 40 kHz 20 kHz
64 to 128 MHz 80 kHz 40 kHz
128 to 256 MHz 160 kHz 80 kHz
256 to 512 MHz 320 kHz 160 kHz
512 to
1056
MHz 640 kHz 320 kHz
< 30% on a 5 Hz square wave
0.5 Hz to 100 kHz (typical)
1-12
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