Advertisement
Performance Tests
Model 8902A
Measuring Receiver Input SWR
14.
Disconnect the sensor module from the SWR bridge and the Measuring Receiver's input.
Connect the
SWR
bridge's R F input directly to the Measuring Receiver's INPUT connector.
(See Figure
4-7.)
15.
On the Measuring Receiver,
key in 1.7 SPCL. Resweep the signal generator. At all frequencies
between 2.5 and 1300 MHz, the signal should be 16 dB below the reference signal.
Worst Case Return Loss for Tuned R F Level Measurement;
Measuring Receiver Input; Range 3:
-16 dB
16. Set the signal generator level to +3 dBm.
17.
Remove the SWR bridge from the Measuring Receiver's input. Sweep the signal generator as
before and establish a convenient reference on the spectrum analyzer's display.
18. Reconnect the SWR bridge to the Measuring Receiver's INPUT connector. On the Measuring
Receiver, key in 1.2 SPCL. Resweep the signal generator. At all frequencies between 2.5 and
1300 MHz, the signal should be 22 dB below the reference signal.
Worst Case Return Loss for Tuned R F Level Measurement:
Measuring Receiver Input; Range 2:
-22 dB
19. On the Measuring Receiver, key in 1.6 SPCL. Repeat step 18.
Worst Case Return Loss for Tuned R F Level Measurement;
Measuring Receiver Input; Range
1:
-22 dB
4-34
Advertisement
Chapters
