Hi Andrew, Thanks for the offer but i have already taken Dean up on his offer. Where are you by the way? Couldn't see you call to look you up? 73 Ian G3YBY

Dear Ian, Do you have a current limiting power supply, you can set to 5V or 3V3, with a current limit of 100 mA and apply to various parts of the board to help you find your fault? We are not

I never had one of Hans's boards bite me! :) Roger --- *************************** Roger Hill ***************************

Hi Bill, I wouldn't think you would have any negative consequences if you soldered some 50 ohm coax like RG-174 to a second connector on the other side. I don't know your exact space constraints, but

Hello, I have a perfectly working QCX40. I rearranged my desk and it would be better if the RF connector came out the left side of the case. Will it mess up and of the tuned characteristics if I add

I just finished my second 50w amp from QRP-Labs (this time for 40m). It looks like another successful build. As a side note, I also built a simple Arduino wattmeter described in November, 2018 QST and

Thank you Hans, I just updated the clock firmware, it works great. I now have a new capability, updating AVR’s set up for in-circuit programming. Using a new USBASP programmer,

Yep 7.10 on latest version page 99 on the qcx manual. Get 7.10 on display press left select button to edit. Use rotary encoder to change value to 17 then finally press left select button. Et viola

Tnx Egon. I will be 82 come December. Doing well and having fun. I retired at the end of 2019. I worked too long, but was enjoying most of the time. 73

Thanks Dean. Will contact you direct. 73 Ian G3YBY

Good for you Craig, I am also 81, soon 82. Egon VE6EGN/SA3EGN

Anyhow, I would first remove, atmel as its socketed and the display. Powering up quite briefly, checking si5351 and ft3254 both visually and with a finger for rapid heating up. Too hot to keep ur

You'll need to send directions on how to get through the roundabout. 😉

I will be on 40 m at 0300 hanging out around 7030 -- Rick w9rea

My colors vary, but otherwise that's how I've done it for about 15 years. Everything 12 volt in my shack, on my bench and for mobile comm is black/red oriented to the standard

Nice! This sounds like a good option for powering the amp. Thanks for the feedback. 73, Gregg w7grm

To test for heating I connected to a dummy load and ran a looped CQ for 20 minutes. During that time I felt the amp and the converter to see how things were heating. The amp gets the warmest. And I

Tnx, that did the trick. I guess I should use instructions for the version I am using. Live and learn even at 81. 73 Craig

The exact menu item depends on your firmware version. On the latest version it is menu 7.10 73, Gregg w7grm

When I call up 7.8 Factory Reset, I get the following msg: Custom splsh OFF. How do I complete a refresh? W7WXQ