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On your 3rd issue, don't set the offset frequency outside the supported range. For example on the low side it is 600 Hz. The firmware lets you select other values and save but it doesn't take effect.

Mitch, here ( /g/QRPLabs/wiki/36874 ) is something about bad SWR values. 73, Ludwig

Although the QMX+ is larger than the QMX, it's still a pretty portable size. It's much smaller and lighter than a typical 100W transceiver. If you manage to cram an internal battery and/or an ATU into

Mitch, T507 winding looks correct, assuming the secondary turns count is right. VA3RR's advice is good. Recheck those soldered connections! JZ wrote:

Mitch - I would try hitting all 6 joints with some heat as a first measure. The sharp edges of the toroid abrading the #28 AWG wire is a secondary concern IMHO, given that mix 43 ferrite has a fairly

I'm going to load test a bunch of random wall warts. It's very tempting to repurpose them, but they appear to only provide the rated voltage at close to the rated current (load). So they really need a

Because of the all profit based models made for inconsistency of tools because of pricing models and out right failure or buyout killing the products.? ?I went KiCad over a decade ago and also

The Hallicrafters S38C that I had as a kid, 1954, used a gimmick capacitor in the IF to affect the BFO. I thought it must have been a left over piece of wire, and learned the hard way. It took a bit

Hi Matt To be clear, I AM on Fusion 360, Eagle is part of Fusion 360. I understand in a couple of years it will be just named differently but the functionality is the same. 73 Hans G0UPL

Barb, way to go! That its a very reproducible design with margins is commendable. -- Allison ------------------ Post online only, direct email will go to a bit bucket.

He has about two years before they have it completely end-of-life; they are forcing everyone to Fusion 360. They won't sell or support Fusion past June 2026 (unclear on whether you can still keep

Hi John, Thanks for the reply. I've posted some pics of the area around T507 from 3 different angles. Apologies for the poor lighting. Please let me know your thoughts. Many thanks. Mitch NK3H

Steve, what AGC parameters do you use ? 73, Steve, N2IC

Thank you Hans and everyone else that responded. I'll add some solder to the side tabs, and leave the small center pins as-is for now.? If I run into USB problems I'll check this first. I've also

Thanks! ?Get BlueMail for Android ?

Hi Roger I'll check it... So so so busy here, catching up on those 300 missed emails while in Dayton is slow going. I've got through 150 so far... 73 Hans G0UPL http://qrp-labs.com

Hello Steve I agree, I don't think 5ms is a particularly slow rise/fall time for the sidetone. But this happened at the time I was trying to solve the CW keying glitch, there was talk of latencies,

Awesome! I really enjoyed reading the write-up! -- 73, Dan - W2DLC

Yes, you just made me smile! Mike Krieger <Djwilcox01@...> wrote:

Congratulations Barb! Great write-up and it was fantastic to be there to witness it and your winning entry, as well as the presentation at the Saturday banquet. My fav bit: "Hans Summers from QRP LABS