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kvp

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Posts posted by kvp

  1. Thanks again guys.

    The flagpole is fiberglass and collapses. It's only up when I'm parked someplace that gets a breeze, usually the beach.

    I'm looking at getting gmrs to go along with my cb as an alternative when needed. Mobile use unless needed while stopped, so not really a base station.

    What do you think about putting a pvc pipe on the back near flagpole that I could raise/lower a few feet for mobile/base use. Running the cable down the inside of pipe, under truck to cab and inside to radio. This would of course require a way to disconnect for when the camper comes off the truck.

    Looking on line what are you thoughts here:

    Just an arbitrary site I found via google
    https://www.arcantenna.com/collections/gmrs-antennas-nmo-mounts

    from that site, would this be a good choice?
    https://www.arcantenna.com/products/laird-antenex-fg4500-450-470-mhz-5-dbd-7-15-dbi-outdoor-fiberglass-omni-base-station-antenna-with-n-female-connector
    looks like I'd need this to mount the above
    https://www.arcantenna.com/products/rfmax-rosahdm1-heavy-duty-bracket-wall-or-mast-mount-for-omnidirectional-base-station-fiberglass-stick-antennas

    other possibilities,
    https://www.arcantenna.com/products/base-loaded-chrome-coil-antenna-for-gmrs-rbc-450-2-s
    or this, not sure how it compares to the above.
    https://www.arcantenna.com/products/gmrs-mobile-vehicular-antenna-base-loaded-chrome-coil-rugged-no-ground-plane-required-with-spring-rbc-450-5-ns#description

  2. Good info guy, thanks. I'm learning. Antenna theory is fascinating and mysterious. Smoke, mirrors and magic.

    From what I've found looks like for gmrs, a disc of metal 6 - 8 inches works, doesn't even need to be a disc just the equivalent surface area if odd shaped.

    Then I see 1/4 wave vs 1/2 wave etc. with no ground plane needed for 1/2 wave. I'm probably mixing disciplines here.

    I'm getting a new truck but the camper will be the same. This photo is more up to date. I have three solar panels on the front now.

    High on the roof would be ideal but I'm not sure practical with canoe. I may be able to mount a pole on the back of camper at roof height and mount there. This roof moves up and down so that would present a problem with needing coax slack and slapping in the wind.

     

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