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help with uhf antenna choice

Discussion in 'Mobile Radio Systems' started by K6DEA, Apr 5, 2012.

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  1. K6DEA

    K6DEA Ham Member QRZ Page

    I am looking for a cheap inexpensive 1/4 or or higher NMO mobile 70cm amateur antenna.
  2. W9GB

    W9GB Ham Member QRZ Page

    ANY of the advertisers, here on QRZ can sell you such an antenna.

    $10 buck item or less for a 1/4-wave NMO mount mobile antenna.
    Used antennas are often found in junk piles at auto body shops, junk yards, land mobile shops

    Alltronics sells a 900 MHz antenna that you can use a longer whip for 70 cm
    these can be found at their Santa Clara, CA store OR on eBay.
    Part number: 97A005
    Last edited: Apr 5, 2012
  3. K6DEA

    K6DEA Ham Member QRZ Page

    Hi, Greg. Thank you for the reply.
    what is the power rating on quarter wave uhf antenna ?
  4. K9STH

    K9STH Ham Member QRZ Page

    At least 250 watts for most, probably more! The real limiting factor is the coax cable from the radio to the antenna. That can limit the power to around 100 to 150 watts if the cable is small enough. RG58/U can easily handle well over 100 watts.

    Glen, K9STH
  5. K6DEA

    K6DEA Ham Member QRZ Page

    Good. When I installed my two nmo mounts and so239 mount, I uses rg8x with double shieldeding. Foil&braid.
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