Sharing power wire?

Discussion in 'Mobile Radio' started by W7EMI, Aug 14, 2013.

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  1. W7EMI

    W7EMI Ham Member QRZ Page

    I want to put my HF radio in my vehicle. I already have a 4-gauge wire running from my battery to a 900 watt subwoofer amp. Can my radio and the amp share this wire or do I have to run a separate wire? Do I have to buy a huge diode to isolate the sub amp from the radio if they share the wire? I obviously wouldn't be running both things at the same time. Thank you!
  2. KA9JLM

    KA9JLM Ham Member QRZ Page

    It Should work fine, If you operate one at a time.

    I would Fuse each separately.

    Have Fun.
  3. K0BG

    K0BG Ham Member QRZ Page

    One possible issue.

    Common mode current flow on antenna interconnection wiring is a given, no matter how and where you mount the antenna. If you properly choke it off, you won't have any issues. There are article on my web site which cover choking of both coaxial and control lines.
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