Scott, sorry to hear of your problems.??? But it should be possible to get that non working unit to work i imagine without too much trouble.
If the connection to a computer does not bring up a drive then it might be the result of two things:
The PIC16F1454 wasn't factory programmed,
or, the connection from the PIC16F1454 is open circuit.? You could circuit trace the two lines between the USB-C socket on the PCB and the appropriate pins on the PIC.
Re the high SWR reading.
You could check the Forward and Reverse voltages. There are small un marked pads on the PCB between the TUNE switch and the relays. They are forward and reverse voltages. ? Hook up your transceiver as you did when it was showing high SWR (into a 50ohm load) and check the voltages on these two pads, with refernce to ground.? One should have a much higher voltage than the other.
vk3pe
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On Fri, Jan 21, 2022 at 03:54 PM, Scott Dupuie wrote:
So, I ordered an ATU-10 from AliExpress and it arrived dead. It would appear to go through the motions of tuning but even with a matched antenna it would result in a high SWR. I also couldn't figure out how to connect it to the computer to run the test software. I connected it the computer but it didn't show up as a drive as expected.
