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Internal mic seems to be working? #qmx #ssb

 

I've just tried transmitting SSB using the internal mic to a dummy load, with my K2 next to it to receive the SSB signal and record the audio.
Although the background noise was loud whenever I pushed the PTT button, my recorded voice was also loud and clear. I set the mic gain to 60 and compression to 10.
So the internal mic is already useable I guess? Anyone tried the internal mic to make a real contact?
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Yoon KM6KJI
 

Hans said it is set up for noise cancelling currently. ? You won’t sound very good ..?
 

I see. I quickly created a plug-in external mic just now for my handheld QMX, to work with the separate PTT switch I created earlier while waiting for the SSB firmware.
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Yet to test the mic but I'm so excited to finally have a handheld SSB tranceiver!
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73,
Yoon KM6KJI
 

If the SSB update has done anything, it's replaced the 3x/week questions about battery voltage with mic questions.
Glorious and very welcome!
--
72 de N4REE, Bob Easton - QRP CW forever
 

I was going to be sarcastic and ask what kind of solder was needed to solder the plug on the mic cable. ;-)

As someone who has worked as 75% programmer, 25% electronics engineer all my working life, it's always pleasing when you see someone produce a nice solution to a task. Even more so when it's a one-man-band type of company. Actually, with 40+ years engineering experience, very little impresses me any more but this is an impressive piece of work from Hans.

Andy

On 23/03/2025 09:23, N4REE - Bob via groups.io wrote:
If the SSB update has done anything, it's replaced the 3x/week questions about battery voltage with mic questions.
Glorious and very welcome!
--
72 de N4REE, Bob Easton - QRP CW forever
_._,_._,_
 

I struggled for an hour today with pileups on a few strong stations on 20m, and finally made the first SSB contact with my handheld QMX when I almost gave up.
The other station in OR was running 100w I guess, and I gave the op 59 and I got 57.
Oh I was so excited and rushing, and forgot to ask how I was sounding. Hopefully it was just okay to give R5.
I was going to buy Hans some coffees when I make the first SSB contact with my QMX, and that's today!
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73,
Yoon KM6KJI?
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On Sat, Mar 22, 2025 at 01:27 AM, Yoon KM6KJI wrote:
Anyone tried the internal mic to make a real contact?
My first SSB contact using the devices was over the internal mic, and using my left paddle to "key" PTT.?? It works, but was less than ideal. Currently I am using SSB over the USB audio and running my mic and headphone through my computer while I wait for my digikey order to come in.

 

While I'm not sure how bad it sounds on the other station, and I understand that it is less than ideal, I was able to make another SSB contact over the weekend using the internal mic. The station in UT gave me 53 and my report was 55.
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Since the internal mic is enabled for noise input, I think it still works when used alone without the external mic. Of course the sound may not be so good without noise cancellation.
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73,
Yoon KM6KJI

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