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Hi Chris, How do you get past the initial SMPS fault that stops the QMX at the hardware diagnostics screen? My QMX stops when the firmware determines that the boards are not present as described in

WARNING - WARNING To all Ham Husbands Please activate the Groups.IO Spy Filter before it’s too late!! Dave ve3zzy

Thanks. Don't know why I couldn't find it. Oh well... -- 73...? ? ? Mark? ? ?AA7TA

If I understand the FCC's NPRM, NTIA wants hams on the 5351.5 - 5366.5 kHz non-channelized portion of the band. But NTIA also wants to kick U.S. hams off the 60M channels, and mandate lower

Doesn't it also prevent the QMX from saving current settings? If so, then you would not save frequency, etc. and when you turn it on again, you'd have to input everything again. -- 73, Dan? NM3A

@aa4ha Thanks for explanation.

Yep, that is what I used to do as well. It is a dirt cheap and easy solution. I had a radio that had the same style plug on the front panel that was for the CW key and the headphone and CW key plugs

I can see why it might be defaulting to the channelized scheme; In the US we are not allowed to VFO across that band and must stick to channelization since we are secondary users on what is primarily

" We have eyes everywhere....." Reminds me of that sports betting commercial: "We are everywhere, we see everything."

The software seems to handle most things well so I suspect it's not really an issue until the encoders start to age a bit

Well, it was hard to confirm visually, and I was unable to recreate the fault on the bench, but this may have been the source of trouble. I removed the solder from the 20m hand-wound inductor leads,

I simply looked at the schematic and Q301 is a BSS123.? I would replace with the same.

21V is within acceptable starting value.? ? Also it will drp soon enough in use to be under 20. -- Allison ------------------ Post online only, direct email will go to a bit bucket.

Hi Guys Thank you for the data. The two replies are close enough to provide sensible guidance. I am going to use a repurposed lipo tool battery. Ie 21 V fresh off the charger and 18.5 V for most of

I think if you just short source to drain (or LCD pin 16 to ground you will turn on the LCD)? If you don't expect to want to turn off the LCD then you don't need to replace Q301.

All, I posted a while back when I finished my mid band ver 4 qmx that my backlight was not working and assumed it wouldn't really bother me. After using it for a while now it would be nice to have the

Oops - this is a QMX+ main board ...

I'm just starting build 2 having failed first time round. I've just got a main board out of the wrapper and measure 916R between VDD and 0V - I was expecting 9-10K. Anyone else know what I should

This is the innovation that I'm here for. Hans, you are a treasure. 73 -- Matt N3AR gmail.com@groups.io> wrote:

Thanks, Roman. My QMXs suffer from the same issue. Looks like an easy fix. 73, Mike KK7ER