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IMHO, this method is valid also but requires two diodes. Why not eliminate the spike at the source? If you have two QDX, you might try using the L14 diode in one of them and see if it gives you any

Dave, I checked our stock at work and we use aTDK part: GLFR1608T470M-LR. Described as a 47UH 0603 power inductor 20%. From the schematic, it looks like they are power not RF. Let me see if I can

After smoking finals in 3 different bad swr occasions ?that’s what I do to protect my qdx finals and it works. Many use in the field with bad swr and even no antenna connected by error. 73 Barb

For the QDX, install the 1N4148 in parallel with L14 with the banded end of the diode connected to +12V end of L14. I personally would like to hear from anyone who has fried a BS170 with this diode

Why wouldn’t you use WSPR? That’s much more applicable to beacon use than FT8, which requires an operator… 73, Willie N1JBJ

Thanks Hans!? Exciting!

Karl, you sent this to the WRONG topic and guy. NOT ME! Checking all messages sent on groups.io, I found the original message as below. Not upset, trying to help both of you. So sorry, I hit the

Greeting all? I am involved with a VHF beacon project and for some time the team had settled on using PI4 plus CW as the Tx modes. We are now contemplating if FT8 would / could yield more reports

Hello Alan There should not be any 0.5 Hz frequency modulation. If ProgRock2 is set up correctly and on a stable supply in a stable environment, within a few minutes of power up, it should achieve

Roger, My tests indicated that the PPS modulates the output. Just a little +/- 0.5Hz, but I'd be wary to use it for a reference. I have just left it, no further checks, there have been a few other

The real fiddly work has already been taken care of for you with the mounting of the SMD components. If you had to install some of those multi-lead packages on a PCB then I would truly despair. What

I have used it to write C code. Does a nice job. Paul It has everything to do with the internet. The neural nets are trained on internet data. -- 73 KD8CGH

OK, so _sometimes_ it’s hallucinations _appear_ to make sense, but if it’s not trustworthy, then what’s the point? 73, Willie N1JBJ

Even GPT agrees with me. Emphasis mine:

And that's what I would tell everyone as a provider of AI services whilst ensuring I was able to mine and use all the private data to train my model and make money off what the customers where

Andre, why not put that question to ChatGPT? Randy, K7RAN

Very interested in hearing about the "smoke test", and first usage! I ordered mine yesterday! ...Dave

Karl, you sent this to the WRONG topic and guy. NOT ME! Checking all messages sent on groups.io, I found the original message as below. Not upset, trying to help both of you. ["Dire need of a

What in the hell does any of this have to do with QRP Labs? Andre, WT9X

I am happy to report I finished assembling the main board in the QMX.? It was quite a rewarding experience.? Easy stuff left to complete in a few hours.? I decided to build for 12V because various