开云体育

Hi all

I released firmware 1_00_020 for QMX and QMX+ which you can download at
and there is also an updated operating manual for
this version.

Please note, this is a minor release, and I hope it will not draw too much
criticism of what has and what has not been included; I just wanted to get
the documentation up to date (1_00_019 was missing an operating manual) and
clear up a few things that several people had identified as urgent or were
very simple or I had done already in the last few weeks. The new "Test ADC
I/Q" tool is also a useful diagnostic aid.

As always: if it is not in this list, it has not been done; so no need to
point out all the things that are wrong that are NOT in this list, if it
has been mentioned on this forum already it means it is most likely already
on my ToDo list. And I do know some bugs will be
particularly bothering particular people... and aren't solved yet... and
that will surely disappoint someone. So I have my asbestos on... But at
least, let's tick off a few things and keep the ball rolling.

And do please rest assured: SSB is the current main priority - and now
Dayton and Friedrichshafen are out of the way, this will be my focus.

*1. New Test ADC I/Q tool shows baseband I/Q samples, aiding diagnostics*
Useful tool that shows a 750Hz sinewave cycle at baseband, and if it is
correct, clean and shows correct 90-degree I Q phase, it verifies the
receiver front end is working properly. If NOT, then it could give
indications of other issues, in conjunction with other evidence; please see
the operating manual at page 83 for a full description.

*2. Add 20dB of attenuation in earphones when in Digi mode (equalize volume
to CW)*
Stops you being accidentally deafened if you change from CW mode to Digi by
mistake. Surely there must be some way to calculate given a bandwidth
difference, what the perceived volume difference would be... in the absence
of having a sufficiently functional cerebral cortex I just found that 20dB
sounds a lot better than nothing at all.

*3. Remove the experimental "SuppressThump" setting which is now always on*
I see no reason to not use SuppressThump, so the setting is now gone and
the thing it did, is now always done.

*4. Configure AGC defaults on factory reset (or new installation)*
AGC (CW mode) is now on by default (after factory reset or on a fresh QMX)
and the settings of the video set up by
default, except for Sample Blocks which is set to 2.

*5. Bug fix: Display leftovers on GPS display on LCD*

*6. Bug fix: RF, AF and Image Sweep tools didn't work unless in VFO Mode A
already*

*7. Bug fix: Selecting a preset did not change the LPF selection, only the
VFO*
Now it selects the appropriate band and filters selection, so this should
solve some danger, when using presets...

*8. Bug fix: LPF and SWR sweep screens broke if not all bands were enabled*
Now fixed...

*9. Bug fix: CAT bug, remove \0 character in AG; command response*

*10. Bug fix: CAT bug, in IF command (1 character too long)*

*11. Bug fix: CAT bug, remove \0 character in TM; command response*

*12. Bug fix: Change minimum frequency from 3.2 MHz to 1.5 MHz*
So now 160m receive should work BUT - note that I have not fixed up the
correct 90-degree phase on 160m, and this means that there isn't any image
rejection on 160m and also sensitivity will be a bit lower than it should
be.

Note also the description of the CPU Utilisation monitor is now also in the
operating manual, at page 102.

73 Hans G0UPL