User's Manual

Navini Networks, Inc. Ripwave Base Station I&C Guide
137
Step 1. Ensure that the calibration of the test setup and RFS Test Box setup for RFS and cables
has been performed each time the test frequency is changed.
Step 17. Switch the RFS Test Box to the Receive (Rx) mode.
Step 18. If present, remove the barrel connector from between the Signal Generator and
Spectrum Analyzer cables.
Step 19. Connect the cable from the Signal Generator to the RFS calibration cable connector.
Use a barrel connector to change the gender, if required.
Step 20. Connect the cable from the Spectrum Analyzer to the RFS antenna cable number 1
connector. Use a barrel connector to change the gender, if required.
Step 21. Take a marker measurement on the Spectrum Analyzer by using the ‘marker to peak’
or the ‘peak search’ function. The screen on the Spectrum Analyzer should look similar
to the one shown in Figure K12.
Figure K12: RFS & Cables Rx Marker Measurement Example
Step 22. The marker value should be equal to the RFS Only RX Insertion Loss + Calibration
Cable Loss + Antenna Cable Loss + Antenna Cable Jumper Loss. RX Insertion Loss
should be within ±2.0 dB of the sum of the parts. If the Insertion Loss results do not
agree with the manufacturers data, check the test setup and the cable connections.
Caution: If RFS & cables test results are greater than the ±2.0 dB limits, they should not
be installed on a tower, as a potential hardware fault exists. Verify connections and
contact Navini Networks Technical Support.
Step 23. Record the data in the RFS System Test Form under “TOTAL RX PATH LOSS