Dedicated APRS Mobile With a Radio Shack HTX 212 I ended up using a Radio Shack HTX 212, which I got inexpensively (unfortunately the seller forgot to tell me that the power button doesnt work. it can not be turned off by the button). I have it powered through a relay that is connected to my auxiliary battery.
The relay is triggered by a manual switch n my switch panel that is wired to switched power from the engine battery.
Had a cable made up by someone who has made a couple before for the same purpose with this model radio.
For some reason, after taking several days through a few emails. hammadeparts said it was not possible to make one. Glad I found someone who didnt hold that belief.
Cable connects to a MobilinkD modem/TNC, which bluetooths to my phone or tablet which has APRSdroid app.
MobilinkD has an auto on/off power option now, and it is powered directly through the HTX 212 via a micro USB end built into the connection cable
I have it all mounted on a vertical panel, bolted below my sleeping platform in the right rear corner of the truck.
The HTX 212 is easily programmable, unlike the Motorola Maxtrac, which is why I went away from the Maxtrac. It has low of 10 and high of 45 watts output.
So far, it has worked very well. Looking forward to the messaging and tracking capability.
All I have to do is unplug cable and I can use it as a backup 2M radio.
I can easily remove the MobilinkD TNC/Modem and use it on foot with an HT.
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