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APPENDICES
APPENDIX A- FM/AM·1200S/A SPECIFICATIONS
A-1 RF SIGNAL GENERATOR
Frequency Range:
Frequency Accuracy:
Residual FM:
Harmonics:
Non-Harmonics
&
Spurious (at offset from
selected frequency):
RF Output Power:
RF Output Accuracy:
Variable Generate:
Internal Modulation:
Deviation Range:
% AM Range:
Externa Modulation:
Frequency Response:
Modulation Sensitivity:
Distortion
(at 1 kHz sine):
Input Impedance:
250 kHz to 999.9999 MHz in 100 Hz increments.
±5Hz +Master Oscillator (S/Ns thru 4490
for FM/AM-1200S, S/Ns thru 1448 for FM/AM-1200A).
See Master Oscillator for FM/AM-1200S S/N 4491 and
after (S/N 1449 and after for FM/AM-1200A).
<100 Hz RMS
(300 Hz to 3 kHz Bandwidth)
2nd Harmonic
~-30
dBc
3rd Harmonic
~-45
dBc
± 10 kHz to ±
1.
5 MHz:
~-30
dBc in band
±1.5 MHz to band end:
~-55
dBc
(If image
~-35
dB)
-127 dBm to -20 dBm (10 dB steps with 11
dB range vernier) into 50 ohms.
±2.5 dB (±3 dB at frequencies >800 MHz and
levels between -120 dBm and -127 dBm for FM/AM-
1200S thru S/N 7698 and FM/AM-1200A thru S/N 1676).
When in the "locked'' position, the generator
is phased locked to the master oscillator.
When switched from the "locked" position, the
generator may be varied ±10 kHz.
0 to 50 kHz (with 1 kHz tone).
0 to 90% (with 1 kHz tone).
FM:
2 Hz to 30 Hz (DC when in variable generate)
AM:
10 Hz to 10 kHz (30% maximum modulation above
5 kHz) .
FM:
.1 VRMS/kHz (-0 to +30%)
AM:
.01 VRMS/% (-0 to +30%)
FM:
<1% to 20 kHz deviation
AM:
<10% to 60% modulation
10K Ohms nominal
A-1
05
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