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Effective line-of-sight range of CDMA?

Discussion in 'GENERAL Wireless Discussion' started by TKR, Feb 27, 2006.

  1. Andy

    Andy Diamond Senior Member
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    CDMA phones especially were still seeing tons of sites, though, even at relatively low altitudes.
     
  2. RadioRaiders

    RadioRaiders RF Black-Belt
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    Exactly. To communicate you need an uplink and a downlink. In your case you may be able to get a downlink signal, but your phone can't say "hello" to the tower, so it doesn't recognize it.

    ...however if you were in Australia :browani: :

    Ericsson and Telstra achieve world first 200 km cell range

    http://www.ericsson.com/ericsson/press/releases/20070212-1104433.shtml
     
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  3. RadioFoneGuy

    RadioFoneGuy Powered by HTC FUZE
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    lots of good info.
     
  4. TelcomJunkie

    TelcomJunkie Bad Handoff Investigator
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    200Km....damn.
     
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  5. RadioFoneGuy

    RadioFoneGuy Powered by HTC FUZE
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    gotta be 450 MHZ in a very rural area with minimal pilot flooding.
     
  6. clock3687

    clock3687 Cell Signal?????? Use it!
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    Thats crazy good range! I wonder how much power that tower was outputting. The best range that i got from a tower in Australia was in Brisbane. The tower was located right on the coast and i was able to pick up the signal on the Tangalooma resort about 12 miles off the coast. I was using the Yes Optus i think.
     
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  7. RadioRaiders

    RadioRaiders RF Black-Belt
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    WCDMA 850 Mhz. Yes, the tower must have been blasting a high power. But I'm not sure what the user end was.
     
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  8. RadioFoneGuy

    RadioFoneGuy Powered by HTC FUZE
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    I just read that article, It said it is capable of 200km (not tested at 200km)
    The Nortel GSM my company is running is capable of 200km you just have to change the timing on the base station. You also have to use tower mounted amplifers to boost the mobiles uplink back to the tower.

    We have sites pushing around 50 watts with tower mounted amps and you can talk on these towers 30 plus miles away.

    200km is overkill in my book and is just beggin for hand off and 911 related problems. Would work good out in the middle of the ocean or seriously remote areas like Siberia, the moon or antartica.
     

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