Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors

Return Loss, Cable loss

Viewing 2 posts - 1 through 2 (of 2 total)
  • Author
    Posts
  • #34848
    Nitin
    Guest

    What is the meaning of return loss, Cable loss & Distance to fault ? & how to measure these using site analyser ?

    #34849
    dan_serbescu@yahoo.com
    Guest

    Hi Nitin,
    Return Loss is valuated by VSWR(Voltage Stationary Wave Ratio). Usually GSM feeders are adapted to 50 Ohms. Of course that this perfect adaptation can be matched for a narrow number of channels and not for full GSM bandiwth of 124 channels.VSWR value is the worst value inside all bandwith. usuually a value within (1.3-1.5) dB is accepted.

    Cable loss is due to distance attenuation and is given per 100 m. Some feeders have 10dB/100m attenuation others have 2.5 dB/100m

    Site analyser(site master) is a specific tool that allow you to measure all staffs regarding antenna and feeder system.It injects a signal in feeder system( including connectors, feeders, jumpers, antennas ,TMA and REKs) and it measures the VSWR attenuation etc….

    Hope I gave you a clue:)Mail me if there are more to be detailed

Viewing 2 posts - 1 through 2 (of 2 total)
  • The forum ‘Telecom Design’ is closed to new topics and replies.