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Re: Suspected faulty rotary encoder QMX Rev 2 80-20m kit build


 

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Hi Nino, Brandon--

Some random responses on my part:

  • I too have noticed that, when the frequency goes too far up or down, it gets "stuck" and requires a power cycle. Reported to Hans.
  • SSB hasn't been implemented yet, so it might not honor the sideband. BUT I know that I've been able to set the sideband for LSB on 80 (version 12 firmware)... So there may be something else at play, here.
  • Haven't noticed what you (Brandon) reported about first CCW click, but maybe?
Nino-- Given that the right encoder works well for "everyone" else, it's hard to see how that could be a firmware problem...

There are several functions attached to the right encoder. Turning it should change the frequency. Clicking the button should invoke rate or select message. Do any of those functions work?

Looks to me like the MPU is sensing which switch is activated by sensing the resistance of the connection (JP302-6 to ground). You don't mention how the right hand encoder is malfunctioning--I'd suggest checking for solder bridges between pins on JP302. Consider that the problem with the right hand button and the right hand encoder might be somehow connected...

Wishing you luck!

73, Paul -- AI7JR

On 1/7/24 15:52, tautog54 wrote:
Hi Brandon,

Today I replaced the right encoder and the situation is still the same. In my opinion, it is not a hardware problem. Perhaps there should be something wrong with the board or the firmware. I'm at a dead point then I prefer to leave it until I know more or maybe a new firmware release will solve the problem.

Best 73 de I1MDQ Nino
-- 
Paul -- AI7JR

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