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Sunday 2 October 2016

APRS with Baofeng UV-5R, follow up

Now that I have got an ideal replacement for my Baofeng UV-5RC Plus since the battery keeps falling off it, in the form of the Pofung GT-5, I can now make progress on the UV-5R APRS project I am working on.

So, the only Bluetooth TNC I can find is the Mobilinkd TNC2 from across the pond, this would consist of the unit itself and a short jumper cable to connect it to the UV-5RC Plus, I intend to use my Samsung Galaxy S4 with APRSDroid for this as before, as there should be no audio issue over the Bluetooth like the direct connection to the radio as I previously attempted.

Already having APRS in the car I of course want to expand on where I can use it, having a UV-5R and this unit in a backpack and the spare phone (which won't be connected to the mobile network as I would not need this except for Google Maps) would work well, I sometimes walk places and sometimes have a HT with me, I don't always use the car.

Prior to this I'd need to reprogram the UV-5RC Plus to only operate on 144.800, not a difficult thing to do with CHIRP, as far as I can tell it's just a case of programming it into one of the memories and disabling the menu and a few other things.

This should be the next thing on my list, though I may also need a ferrite, as apparently some Baofeng radios have an issue where if RF gets into the mic line it can latch the PTT, which I suspect my UV-5RC Plus may have, but I can obtain ferrites locally

73 de M6RSQ

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