Assembly Instructions

Navini Networks, Inc. Ripwave Base Station I&C Guide
Part #40-00047-00 Rev F v1.0 (TTA) 195
October 23, 2003
RFS & Cables Receive Verification
This test is performed after the RFS is installed and the antenna cables, calibration cable, and
power/data cable are connected to the inputs on the RFS.
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 2. Switch the RFS Test Box to the Receive (Rx) mode.
Step 3. If present, remove the barrel connector from between the Signal Generator and
Spectrum Analyzer cables.
Step 4. Connect the cable from the Signal Generator to the RFS calibration cable connector.
Use a barrel connector to change the gender, if required.
Step 5. 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.
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 O12.
Figure O12: RFS & Cables Rx Marker Measurement Example
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.