Wavetek 3000 Instruction Manual page 69

2 .
Connect the equipment as shown in Figure 4-10 .
Model 3000
Signal Generator
26 dB RF Amplifier Spectrum Analyzer
RF Out
Input
00
Step 4
Output
Figure 4-10 . RF Leakage Setup
3 . Set the spectrum analyzer bandwidth to 100 kHz,
the
scan width to 0 .5 MHz/div, the video filter to
100 Hz,
to 0 dB and the
log reference level
Center the sig-
control . Cali-
at the -31 dBm
the input attenuation
to -50 dBm with a 10 dB/div vertical scale .
nal in the display using the center frequency
brate the analyzer for the -107 dBm signal
graticule using the log reference controls .
PFRFORMANCF TESTS
RF Input
4 . Disconnect the RF amplifier from the Signal Generator,
and connect a 100 dB attenuator pad (10+20+30+40) to
RF out connector of the Signal
Generator . Terminate
attenuator in a 50 ohm load .
the
the
5 . Set the
Signal Generator OUTPUT step attenuator to -10
dBm, and the OUTPUT VERNIER to a +3 dBm reading on the OUTPUT
meter .
6 .
Connect the loop .probe to the input of the RF amplifier .
Move the loop probe over the surfaces of the Signal Genera-
tor with the two-turn loop at a one-inch distance . The
signal plus noise should be less than the -107 dBm reference
(step 2) . Record the maximum reading in dBm on line 46 of
the PTR .