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You’ll have to figure out TX RX switching too

In my case, the CW-like stuff was coming from the GPS module. I remove the module and the CW stuff goes away. Tony AD0VC ________________________________ Sent: Tuesday, April 1, 2025 3:08 PM To:

If I disconnect the antenna, the birdies appear in the FT8 waterfall. When I connect the antenna, they disappear, presumably because the atmospheric noise swamps them. Maybe the AGC is a factor as

Thanks Ludwig! To answer the above questions: * When connecting to GND I used either a GND port on one of the JP nodes, or the bar on the edge of the board * Measuring through VDD showed the same

That confirms what I thought. It still seems like there is something firmware that could change how this behaves. Was just hoping there was a quick, easy solution. With these here decoding MFSK modes

Ok real help has arrived! CUL.

Q501? Nice find. Reminds me why carefully inspecting the whole board under magnification is so important.

Thank you!

I would like to purchase an assembled (working) 10 watt linear hf amplifier. Thanks, AC4OW, Sam I have ordered a low pass filer from eBay: Assembled 12v 100W 3.5Mhz-30Mhz HF power amplifier low

Thanks again!

Also do you have the internal GPS? if so unplug it. Also is it in a case? If so remove it.

Michael, where did you connect the GND probe of your Meter to the QMX GND? 3 V ... 3.3 V would be ok. This signal comes direct from a controller I/O-pin and the controller runs from VDD 3.3 V. 4 V is

Also replug the front panel and look at the display connection and while it's out check for a tiny bridge or a whisker that may be in there. That will answer a lot of questions before real assistance

Alright, did the reset, correctly selected the QMX+ version from initial selection, and had about 2 minutes of solid listening time to a QSO on 20m. Thought maybe the reset was going to fix it until I

Will try doing a reset next.

Just tried it - the board gave me enough uptime that I could send a few dahs. It looks like I'm barely putting out any power, but I did see the FWD meter on my ATU bump a little bit. I didn't wait

Also is there time to do a reset before the pro analysts see this post? That will give you a headstart! I did notice a little quirky behavior on mine, right after I first powered it up.

Do you have enough time to transmit into a dummy load on 20?? Does it kick out, immediately?

I have a rev.3 I didn't burn in yet. So let me see if it is working HiHi. You made me think ?

That pulsing signal like CW is what I get too, so I don't think it's external. It doesn't change with tuning, so it seems like something getting injected into the audio. -- 73, Dan - W2DLC