Successfully built my first transceiver ever, the QMX, a few weeks ago. ?As a novice with electronics, it felt amazing to complete. ?I have tested it several times in the backyard, and everything worked as it should and made several contacts.
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Got out to a POTA park today for my first POTA activation with my QMX, and it will not power on. ?I’m using the same cable and battery I have used in backyard testing— a PD power bank with a trigger cable for 12V (which is what I built it for).
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I powered it on before I left the house this morning in order to program in my CQ memory messages. ?I did not have a dummy load plugged in at the time, and now I’m worried that I unknowingly transmitted one of those messages while programming it in, and if that did something to mess it up.
Would appreciate anyone’s suggestions on where to start.?
Field troubleshooting so far:
I’ve ensured that battery has power (96%), and I’ve removed and reinserted the power cable several times. ?
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I removed the enclosure but can’t remove the buttons as my Leatherman multitool small flathead had broken off many years ago, oops.
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At this point, I’m about to head home to finish testing from the house.
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Thanks for your help,
Mallory KD5ZZU