Rfi Test - Wavetek 3000 Instruction Manual

4 .18 RFI TEST
2 . Use the setup in Figure 4-8 . Connect the sweep/signal
generator to the input port, the spectrum analyzer to the
reflected output port and the coaxial short to the device-
under-test port of the VSWR bridge .
3 . Set the sweep/signal generator output level to -10 dBm,
the mode to CW and the center frequency to 250 MHz .
4 . Set the spectrum analyzer to span 0 to 500 MHz and the
bandwidth to 300 kHz . Use the log reference level controls
to calibrate the 250 MHz signal at the top line (0 dB refer-
ence) of the display graticule .
5 .
Disconnect the coaxial short and connect the device-
under-test port of the VSWR bridge to the Signal Generator
RF out connector . Use the sweep/signal generator center
frequency control to tune from 1 to 520 MHz and verify that
the signal level in the display is >21
dB below the 0 dB
reference . Disregard the signal
at 520 MHz .
Record
the
reading in dB below the reference on line 45
of the PTR .
Model 3000
Sweep/Signal Generator
Signal Generator
Figure 4-8 . Test Setup
PERFORMANCE TESTS
Step 2
Coaxial
SMrt
SPECIFICATION <1 .0 pV is induced in a two-turn, one-inch diameter loop
which is held one inch away from any surface . Loop feeds a
50 ohm receiver .