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Thanks for the update Tony. I was just wanting to confirm what was being put on GITHUB James

The two test firmwares for the ATU-100 73 Tony VK2IC

David, Put what on GitHub? James

Hello! In case you have got the PCB, - here is the firmware (based on David's v1.4 for ATU-10 and "symmetric ATU" sources) for the PIC16F18877 chip. The other PIC (the PIC16F1454) should be

Seems like I forgot to put them on GitHub. ?

Okay, I will try to test when I get back home. Regards Cheers 73 James

Hello James, This is perfect you are right, I did it too. this is for ATU-100 I just said for ATU-100 modified or not, there is not test firmware. Test firmware is only for QRP ATU-10 this is an

David and Patrick, I have attached a link from IK3SSG and his work on getting the ATU-100 to QRP levels. This is what I did a year ago. I do have a Pickit3 to use to reprogram if

Hi Group , David, James The test? firmware is only for? qrp ATU-10? not ATU-100 I could be wrong but I have never seen test firmware for ATU using 16F1938 73 qro Patrick

Hi, James. You have to flash your tuner with programmator Pickit3 and special testing firmware you can found on GitHub. After test you have to return to working firmware back.

Thank you for your message. However, I think the hardware of the ATU-100 is normal. Because it works fine with the original N7DDC firmware. Katsuhiko JA7UIO

That sounds like a hardware fault. Check the solder and components around the binocular ferrite core. That is the circuit that detects the SWR. Colin K6JTH

David, Do I need to open the firmware to activate the tests or just press the Green reset button and check to see if all the relays are on? How do I check manually? My documentation was a minimum,

Thank you for always providing useful information. My ATU-100 compiles successfully in an MPLAB environment and looks fine, but doesn't tune. Even if 10W of power is injected, the power display is

Hi. There are 2 test firmwares , you can use both of them to find burned transistors or bad soldering. "Fast test" just turn all the relays on and you can check everything with multimeter. "Manual

Greetings, Is there a written point to point test menu for checking problems for an ATU (China)100? I built it over a year ago and no problem, including dropped software the unit to recognize my QRP

Hi All A local Amateur in VK3, VK3LOL,? sent me a picture of his ATU-10 PCB, bought recently. Many thanks, Rob. It's interesting in that it uses the larger PIC devices, that I used in a version of

Colin….that’s a good idea! Bill Wa2jhs

I would add the LED for pre-deployment testing. Then make sure you have an SWR meter inline so you can see if there is a failure. Colin K6JTH

Hi all..just purchased one of these to use as a remote tuner…wondering if I could just leave the buttons and the display off and set it for auto tune….I will be mounting it in a weatherproof