• [G4AKC] New "HF Backpack Pedestrian" Mobile

    From G4AKC via rec.radio.amateur.moderat@21:1/5 to All on Tue Sep 21 15:43:47 2021
    XPost: rec.radio.amateur.moderated, rec.radio.amateur.equipment, uk.radio.amateur
    XPost: free.uk.amateur-radio

    G4AKC - HF Pedestrian and Bicycle Mobile

    New "HF Backpack Pedestrian" Mobile

    Posted: 21 Sep 2021 07:59 AM PDT https://www.g4akc.co.uk/new-hf-backpack-pedestrian-mobile/?utm_source=rss&utm_medium=rss&utm_campaign=new-hf-backpack-pedestrian-mobile

    The new backpack consists of a Clansman metal frame carrying a modified
    Alinco DX-70TH transceiver, this is powered by a lightweight 22Ah LIPO
    battery which has its own dedicated charger.

    The antenna is a modified MFJ-1979 17ft telescopic stainless steel antenna which is matched against a toroidal ground tuning unit (GTU).

    The system does not require an ATU as the antenna is adjustable in length
    to provide a good match between 14MHz and 30MHz, the ground tuning provides
    the necessary ground coupling for the antenna to work against, there is
    more information about GTU principles on https://www.g4akc.co.uk/ground-tuning-units-gtus/

    The set up provides up to 90 Watts RF into the antenna and the whole
    backpack including antenna is only 17 pounds in weight.

    This set up is an update to my original backpack from a few years ago shown here: https://www.g4akc.co.uk/hf-backpack/

    Dave G4AKC

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