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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 [email protected]> wrote:

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

After a great deal of searching I think I have a conclusion - albeit something I can't rectify. Fault was 0.8R between VDD and 0V. Never tested until construction was complete but have to assume this

I snoozed and lost! ?Thanks for making the connection. ?I need to adjust my notifications!

PIR sensing won’t work. ?“You should know… Don’t wait for me to chase you down.” Need “spouse thoughts band” on next QMX version.

For the fluctuating VSWR reading, did that happen to occur right after hitting a high SWR lockout? ('S' displayed next to the VFO frequency) I've found that that random fluctuation happens both when

Random freeze when transmitting also happened to me exactly once, but with firmware 19. Haven't been able to reproduce it; could have been any number of random interferences or firmware

Ty it helped.

Oooooh we have SPIES among us! 73 Hans G0UPL http://qrp-labs.com https://buymeacoffee.com/g0upl [email protected]> wrote:

You do know us wives are also present in these groups...? we also have our own special groups to spread the word on new fangled fancy dodging tactics... We have eyes everywhere.....

Hi Hans: Bingo! Yep, that worked. Thanks Roger 8P6RX

Hi Dave Ah yes you're right. I didn't think that far ahead. I only have one PIR sensor and planning a location for it. But as you said, we also need to know the incoming speed. So this would require

I'm running my QMX with home made power supplies that replace the SMPS power controllers, these use two TO220 sized linear regulators.? It all works except that I don't have the power on/off

Hans, Now thats what I’m talking about! ?Love the way you think. I’m getting ready and calculating location of the PIR sensor. Some days she can move faster than others! ?I have to factor that

Great that you found out and shared it. But I'm surprised that this standard measure isn't included in the original design. Software hides many hardware problems, but it doesn't fix them. Keyword