Transcription of Cable and Antenna Trouble shooting Guide
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Cable and Antenna Trouble shooting Guide
Cable and Antenna Troubleshooting Guide utilizing Anritsu's Handheld Site Master , LMR MasterTM, VNA MasterTM, Cell Master , or BTS Master . Antenna Sweeping Antenna Sweeping (continued) Return Loss and VSWR Distance to Fault (DTF) Antenna Isolation Why Sweep Antennas? Maintenance Sweeps Measuring Reflections Comparing Traces For Base Stations Commissioning Sweeps Troubleshooting Sweeps Setting Cable Types Propagation Velocity and Cable Loss For Repeaters Why sweep antennas? Poor VSWR/Return Common Faults Limit Lines Frequency Range Setup Loss can damage transmitters, reduce the Maintenance sweeps can catch faults early, Poor base station Antenna isolation allows RF. coverage area, and lower data rates.
Open or Short 0 to 5 dB Antenna Better than 16 dB Connectors Better than 25 dB Propagation velocity (PV or V p) directly affects distance accuracy. PV must be set either manually or by entering a cable type. Cable Loss also needs to be set accurately, either manually, or by selecting a cable type. False cable loss values can mask Return Loss
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