Boonton PIM 31 User Manual - Manual (Page 85)

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• Switch RF Power ON
• The PIM Signal(s) should be at a level below -160 dBc
.
If the reading is higher (lower negative value), switch RF OFF, disconnect
connections and re-connect them.
Repeat test
If the reading is still above -160dBc replace low PIM cable and retest.
Hint: Low PIM cables wear out with use. If a cable does not
longer perform in the desired way, dispose of it and replace it
with a new cable. Worn out cables can cause unnecessary work
and costs. Trying to repair a base station with a worn out cable
will lead to no avail.
• Switch “RF Power OFF
• Set the PIM 31 to Field Mode
• Since the PIM 31 test system is connected to a low PIM load (not to an
active antenna), the RSSI value shows the noise floor of the instrument.
• RSSI should
be below -130dBm