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Is this book only available as a kindle version? I would prefer good old fashioned paper if it is available!

Great work, Jeff, and good luck with the micro replacement! 73 JZ KJ4A

Hi, I am using this PWR/SWR setting: Update = 30ms, TX to RX = 20ms And it works well for me at around 22 WPM. -- 73 Bojan S53DZ

Hi Gottfried Is it advisable to add mods 2, 3, 4, 6, 7 and 8 to old Rev 1 boards as well? > There aren't any documented problems attributable to these issues on Rev 1 boards. The modifications 2,

Hi all QMX kits: FINALLY after some UNNECESSARY delays and FedEx FRUSTRATION Arrrggghhhh we finally got the 8 boxes of 1,000 QMX Rev 3 boards yesterday afternoon. My team are building two for testing

A very interesting write up well done, not sure if I would have got there!!

Hi all I resolved this issue in the forthcoming 1_00_017. 73 Hans G0UPL http://qrp-labs.com https://www.buymeacoffee.com/g0upl

Ok....Roger that Hans. I'll go check it out now. Thanks. Tim - K5DEZ

Hi Tim It isn't a bug, it's a change to the way the power meter operated; in 1_00_016 there are some additional parameters in the new "Pwr/SWR display" configuration screen (see attached). The reason

I'm not sure if it has already been reported or noticed yet but I have a low band Version 1 QMX and a High band V2 QMX. With FW #14 the PWR/SWR meter works fine but when I install FW #16 the pwr/swr

I don’t have a lot of scope experience. I bought this one 4 or 5 years ago and it is much nicer than the old tube scopes I have used. It is recommended in these groups often Siglent Technologies

Thanks for suggesting "Oscilloscope Applications for the QRP Enthusiast." Just what I was looking for. I don't have an oscilloscope yet and the one that McClanahan bases his text on, the "Rigol

Is it advisable to add mods 2, 3, 4, 6, 7 and 8 to old Rev 1 boards as well? Thanks, Gottfried OE1IRA

Greetings and thank you for indulging a rookie question. I'm new to complex kits. I have wound, then soldered T1 onto the board, and have continuity in each of these points:? 1 to 2, 3 to 4, 5 to 6

That is an interesting failure mode - deep inside the cpu. After all that meticulous soldering I can understand the sentimental attachment. Good luck and thanks for all you do! 73, Sandy KB3EOF

I’m sure it’s due to an inadvertent short circuit somewhere along the path of assembly. ?I suspect the extra long pins that weren’t trimmed short enough to the board shorted against the case,

Amazing writeup Jeff thanks so much for sharing.? Do you think this is an anomaly (a single cpu that's bum from the factory), or a case of assembly mishap (errant and highly unusual? static

Recently a fellow ham sent me a QMX rig to fix. This is to be my 100th QMX that I have fixed - assuming that I accomplish that with this one. I wanted to share the journey. I found this one

Is the "S" showing in the display just to the right of the frequency when this happens? That would mean lock out on high SWR. If that's happening, check your dummy load or the coax or adaptor you are

Thanks for this suggestion, Fernando. I found some very useful information in that book.