Boonton PIM 31 User Manual Instrukcja Użytkownika Pobierz pdf (Strona 91)

• Set Signal Generator to IM3 frequency.

• Apply signal to PIM 31 (-60dBm to -120dBm)

• RSSI should measure the applied power

• If the reading is off by more than +/- 0.5 dB but not worse than

+/-15 dB, it may be an indication that receiver is out of

calibration. If the measurement shows a level lower than

-125dBm, the receiver does not detect the frequency at all. It

may be asynchronous. In the cases described above, contact

your nearest Boonton Service Center

With the reading in limits, continue procedure:

• Change the frequency of the RF Generator by 2.5 kHz.

• The receiver will filter the signal out and the RSSI reading of PIM31

should be lower than -125dBm.

With the reading in limits, continue procedure:

• Increase the PIM 31 Signal frequency F1 by 1 MHz

• Set Signal Generator to the frequency that correlates to the IM3 product of

frequencies F1 and F2

• Read the RSSI on PIM31; the value should be equal to +/-1 dB of Signal

Generator’s Power level

• Repeat the process you are no longer able to increase the signal

frequency F1 due to band restrictions

• If done, set F1 back to start frequency

• Decrease PIM31 Signal frequency F2 by 1 MHz

• Set Signal Generator to Frequency that results for IM3 product of

frequencies F1 and F2

1 2 ... 86 87 88 89 90 91 92 93 94 95 96 ... 109 110

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Boonton PIM 31 User Manual Instrukcja Użytkownika Strona 91