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Yeah, the SMD caps are just on bottom of the board, just like Dan's photos. Cheers, Glenn VK3YY.

Hi Russ, I was a bit lazy and didn't reorder 40m to be the first band in the sequence.? The sequence is currently 20, 17, 15, 12, 40, 10. Cheers, Glenn VK3YY

Nico, Check IC503 (four 2 input AND gates). Two of the 4 outputs were shorted on mine. My QMX+ was working flawlessly for a long time.? When I added the SSB FW I was playing with the VOX and it might

Yes, I am getting a genuine 4W+ output on 60m using my calibrated LJ-2K+ Power Meter. Hmmmmm, will give that a try - never thought of doing that. I will advise later. 73, Robert VE7ZN

Are these the correct spec BS170? MOSFET N-CH 60V 500MA TO92-3 https://www.digikey.com/en/products/detail/onsemi/BS170/244280 I just heard a pop doing a POTA at what I thought was about a 2 SWR but

I figured it out. For some of the SSB config fields you need to type in a value while others need a left/right arrow to change the value. On the compressor field you must use the left/right arrow. If

Hi Peter! It's a piece of velcro! It's how I attach 2S battery packs to my radio for field use. I use 2S 18650 holders for FPV goggles, they happen to have the same plug, and come with built in

*What it does:* use the LCD to display characters received on the CAT serial port and characters transmitted over the serial port. The RX data could appear on the top line and the TX data on the

Michigan QRP Club On May 19 I had another one of my CW practice sessions. I worked three stations. Conditions were OK. SSN=53, SFI=117, A=10, K=2.I used my Elecraft K3 at 100 watts and a 100 foot

And did you check voltages at G of BS170 (see the link in my first post)?

Robert, did you measure using an external power meter? If not maybe something is wrong around T507. Please check this document ( /g/QRPLabs/wiki/36857 ) from the QRP Labs Wiki. 73

Yannig, good idea. But the QMX delivers 3.3 V via 2.2 kOhm. To have 2.5 V for the IC the current must be not higher than 0.36 mA for the IC and the mic. Unfortunately the IC requires 2.3 ... 5 mA in

Please add my name to the v2 ATU list. ?My QMX+ is being shipped. Thanks. 73, Dale Hammer K9NN dalehammer@...

Hello, Has anybody tried this microphone preamp : https://www.analog.com/en/products/ssm2167.html Evaluation boards can be found for about 5€ looks good to me but I am no expert ! 73, Yannig - F4IUJ

Me too! Ordered a qmx+ kit at Dayton. Thanks Raj, N2RD ¡ª Sent from my mobile Rajiv Dewan rmdewan@...

Thats strange that you get 4w+ at 60m??? Reset factory defaults to erase calibration?

Ludwig, Thank you for your reply. Please note my amended post above. I ran Diagnostics in Putty and see the following RF Output: * 60m - 4.3W * 40m - 0.6W * 30m - 0.5W * 20m - 0.2W * 17m - 0.1W * 15m

Perhaps you could buy a quantity, get a small discount and share the shipping cost with other hams. 73, Don N2VGU

Revision to original post... I just checked again and I'm actually getting about 4W on 60m but then it drops to 350mW on 40, ~100mW on 20m, 75mW on 17m and 0mW on 15m. Help! 73, Robert VE7ZN

hey eric, I'd like to buy a fully assembled mic. please and thank you. Brett/K5BEZ K5bez1 (at) Gmail.com