User's Manual

Ripwave Base Station I&C Guide Navini Networks, Inc.
100 Part #40-00047-00 Rev D v1.0
February 28, 2003
Verify the Calibration
Base Station Calibration Verification is a set of procedures to verify that the equipment has
passed calibration and that the RF portion of the equipment is operating within acceptable
parameters. The results of the tests should be documented in the Base Station Calibration
Verification Form, P/N 40-00059-00. This form, along with instructions, may be found in
Appendix F.
Test Cable & Coupler Insertion Loss Measurement
This test measures the insertion loss of the test cable and coupler.
Equipment Required
• Signal generator - Agilent 8648C, or equivalent, tunable to the RFS center frequency
• Spectrum analyzer - Agilent E4402B, or equivalent
• Two cables – one will be a reference cable; the other will be a test cable
• RF coupler
Equipment Settings
Turn on the Signal Generator and the Spectrum Analyzer. Allow the equipment to warm up for
15 minutes.
Signal Generator:
• Output = Base Station center frequency
• Amplitude = Between –10 and +10 dBm
Spectrum Analyzer:
• Span = 20 MHz
• Resolution Bandwidth (RBW) = 100 KHz
• Video Bandwidth (VBW) = Auto
• Sweep Time = Auto
• Frequency = BTS center frequency
Test Cable Sweep Setup
Refer to Figures 53, 54, and 55 when performing the Test Cable procedure below.