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6.5 Amplifier Performance Test
To perform this test proceed as follows:
Connect test equipment as shown in figure 6-2.
WARNING
DO NOT APPLY ANY RF AT THIS TIME
6.6 Amplifier Spurious Emission Test:
Apply +27 Vdc from the power source. Apply 4-15 Watt continuous random tones from
the RDL to the MAF 900-60S MCPA. Composite power will be 60 Watts measured from
the Power Meter. Setup Spectrum Analyzer for Center Frequency (937.00 MHz), Start
Frequency (930 MHz), Stop Frequency (945 MHz) Span (200 kHz) RES BW (1.0 kHz)
Video BW (1.0 kHz) Measure and record data on Table 6-3.
6.7 Gain Test:
Disconnect spectrum analyzer from the MAF 900-60S. Connect Network Analyzer to
MCPA.
Set Network Analyzer as follows:
a. Normalize Network Analyzer for gain and return loss.
b. Set start frequency to 935 MHz. Set stop frequency to 940 MHz. Setup Network
Analyzer for 2- channel measurement. Set markers to 935 MHz, 937 MHz, 940
MHz.
c. Adjust input power of Network Analyzer to measure 60 watts on the Power Meter.
d. Measure and record amplifier gain on Table 6-3.
e. Set marker to 935 MHz scroll marker (delta) across bandwidth to 940 MHz.
Measure Gain Flatness and record on table 6-3.
f. With Network Analyzer setup for 2-channel operation measure return loss using S
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data Record on. Table 6-3.