DRAFT
21
Operation and Service Manual
Performance Tests Procedures
nect the power meter to the amplifier OUTPUT. Calculate and record the amplifier gain
as in step 2.
5
Measure, calculate and record the amplifier gain at the following frequencies. Use the
procedures outlined in steps 3 and 4.
6
Disconnect the sweep oscillator and the power meter from the amplifier. Connect the
equipment as shown in Figure 4. Set the generator/sweeper for a 10 MHz, CW signal.
Set the signal level for
−
40 dB (read on the voltmeter).
7
Disconnect the voltmeter from the generator/sweeper. Connect the generator/sweeper
to the amplifier INPUT. Connect the voltmeter, with the 50
Ω
termination, to the am-
plifier OUTPUT. Note the voltmeter reading. Use this reading to calculate the amplifier
gain.
Example:
−
18.5 dB (read in step 7) minus
−
40 dB (set in step 6) = 21.5 dB (gain)
Figure 4
Flatness and Mean Gain Test Setup: 100 kHz to 10 MHz
8
Measure, calculate and record amplifier gain at the following frequencies. Use the pro-
cedures outlined above.
Gain at 1150 MHz________________________dB
Frequency
Gain
800
±
200 MHz (tune for minimum):
_______________dB
350
±
100 MHz (tune for minimum):
_______________dB
Gain at 1300 MHz:______________________dB
