Gain of a 4.5' heli 20m monoband mobile antenna?

Discussion in 'Mobile Radio Systems' started by ZL1UZM, Mar 16, 2011.

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  1. ZL1UZM

    ZL1UZM Ham Member QRZ Page

    It's a hamstick style mobile that is 1.4m (4.5') long with a tuning rod at the top for the 20m band.
    I'm guessing it has about a gain of -10 dBd. Would that be right???

  2. K8JD

    K8JD Ham Member QRZ Page

    Maybe as much as -12dB !
  3. KA4DPO

    KA4DPO Platinum Subscriber Platinum Subscriber QRZ Page

    It depends on what the frame of your aircraft is made of and where the antenna is located but -10dbd is probably a good bet.
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