Presumably the BSS123 could be shunted with a suitable resistor (drain to source) so that the brightness is toggled between full and dim... John G4YTJ

Great! Many thanks Bruce. -- Peter Lee G3SPL

I think this is what you are looking for: https://groups.io/g/QRPLabs/message/55088 - Bruce K1FFX

I seem to recollect Hans saying that he would post the modification needed so that the QCX+ backlight can be controlled using firmware 1.06. I can't find this anywhere. I want to see what is

Mont, Samuel No need for anyone to feel stupid, not at all. This stuff can be rather confusing... I'm just glad we could clear it all up. And glad there isn't any issue in the firmware that I'd have

Hi Michael Thanks for the very nice feedback. The manual is good, but where it can be improved I'm pleased to take the feedback to make it better still. There's a huge amount of work behind these

"Posters on this and some other lists may have bibles that say QRP is always 5 watts or less. So that is what it probably means here. In the wider universe - probably not. 73, Bill KU8H" No bibles and

We can discuss what the QRP power level is for other modes. BUT, there is really only one mode for normal communication with the QCX: CW. QRP is well defined for that mode - 5watts. This could

Luc This is a tough one. We have time zones, different power levels, and different qcx bands. Lets see 3 natural qcx approx levels are common. 4 watts, 25 watts on 13.8 volts and 50 watts on 24 volts.

Dan, Hans does run these voltages somewhat higher than recommended. Are you sure your meter does not read high making it look worse? If you are happy with the 5V then making R5 around 27K will bring

Yep, I've seen the argument that 10W on SSB is qrp, although QRPARCI says it's 5W regardless of mode. Jack, W8TEE

Hi, There is and probably will be for a long time to come some ambiguity. Context can be our friend. Meanwhile I would point out that contesting and non contest 'operating events' have up to three

I'm building the ProgRock. Step 8 Test the voltage regulator. . . My test results are 5.23v, which is within the 5% +/- and 3.8v, which isn't. Are these voltages 'close enough' or what do I need

I'm not trying to pile on here, but ever since I can remember hearing the term QRP, as applied to power limitation for contests or challenging operating conditions, it has meant 5 Watts or less. While

Thanks to all of you for your great advice and inputs. More welcome, of course! The more I see what others are doing, the more I learn. I'm thinking to maybe start with a wall wart to get the clock

Hans, Thank you for being so amazingly attentive to the quality of your product. One of the very best parts of this quality is the manual. Please don't take my explanation as a criticism in any way,

Hey there Michael! Here's another one. I really don't care for 'wall warts', so I just built in a switching supply. TDK-Lambda LS25-5, 5vdc, 5A. $16 - $17 range. Mine has been in use for over four

I went through the same adventure, but I ordered another one that works perfectly. I owed this to Hans, whom I annoyed many times. The kit is not very expensive, it's worth not giving up. It was a

Mont I appreciate you trying to help me. We can both go to the "feeling stupid" corner for a while Samuel

I'm going to quit posting responses.... arrrgggg... Forgot about frequency difference going in opposite directions. I.e. output freq goes down as you tune up. Read the manual (stupid me):