artisan 8640B - Auxiliary Output Test

Model 8640B TM 9-4935-601-14-7&P
PERFORMANCE TESTS
4-27. OUTPUT IMPEDANCE TEST (Out of Band) (Cont'd)
5. Set generator's FREQUENCY TUNE control fully ccw and repeat steps 3 and 4. Return loss should be >9.5 dB
from 50 to 512 MHz.
9.5 dB________________
6. Set generator's OUTPUT LEVEL switch two steps ccw to --1 dBm and repeat steps 3 and 4. Return loss should
be >17.7 dB from 50 to 512 MHz (VSWR <1.3:1).
17.7 dB________________
7. Set generator's FREQUENCY TUNE control fully cw and repeat steps 3 and 4. Return loss should be >17.7 dB
from 50 to 512 MHz.
17.7 dB_______________
4-28. AUXILIARY OUTPUT TEST
SPECIFICATION:
Auxiliary Output: Rear panel BNC output is >-5 dBm into 50Ω, source impedance is approximately 500Ω.
DESCRIPTION:
The power level from the generator's rear panel Auxiliary RF Output jack is measured with a power meter as the Signal
Generator is tuned from 512 MHz to 500 kHz.
EQUIPMENT:
Power Meter ..........................................................................................HP 432A
Thermistor Mount ................................................................. HP 478A OPT H63
PROCEDURE:
1. Connect power meter's thermistor mount to generator's rear panel Auxiliary Output jack after setting Signal
Generator's controls as follows:
COUNTER MODE: EXPAND . ......................................................................Off
LOCK ..............................................................................Off
Source ........................................................................... INT
AM ...............................................................................................................OFF
FM ................................................................................................................OFF
RANGE.........................................................................................256 - 512 MHz
FREQUENCY TUNE .............................................................................512 MHz
RF ON/OFF ....................................................................................................ON
4-41
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