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Michael, I have had good results with an aviation headset with a 2.2k resistor in series with the mic. I think all of the hard wired ones, i.e., not Bluetooth, have electret mics. The nice thing is

I may be way off, but just for grins, I would check the pot wiring. Ten turn pots normally have the wiper the most rearward pin as opposed to the center like normal pots. v/r Fred W4JLE Sent:

Here in the US it was Mother's day maybe low participation rate Maybe 2 other alternative/backup freq. ? Chicago. N. Illinois had two strong stations on top of 7.179 or below in the freq. I tried

Although the problem is not fixed yet, we can conclude that it's not a software issue. Funny, I had exactly the opposite problem, initially. Sidetone was cut down during first second, after one

Now that I have a BITX40 on the way, I have been thinking about options for a microphone. ?I did a search through the archive and I see nothing about people using Speaker/Mics.? I remember years

If the speaker is connected only to Raduino, audio/sidetone is fine, no problem. I also disconnected the audio AGC but the behavior is the same, audio is cutted down. 73'Adi

Great idea. I've called CQ on the last 3 Sunday 9pm slots. I can hear very faint dx but nothing strong enough to copy. The nearby adjacent stations others experienced do seem to overpower us a

Just for trouble-shooting: What happens when you temporarily disconnect the speaker from the BITX40 output? (so that the speaker is only connected to the Raduino output via the 1K resistor)? 73

Thanks for reply Allard. I add an audio AGC with a FET transistor.?

Hi Adi, If I understand correctly, the problem is only with the sidetone, not with the actual transmitted CW signal, right? Did you do any modifications to the AF amplifier? Or is it still

Forgot to add that on external receiver there is carrier despite the fact that sidetone can't be heard on Bitx. (Tx without monitor). Adi

Hi Allard, I updated to ver. 1.11 and I have a problem on CW. When I press the key (straight key), there is sidetone but only for about 2 seconds, then it disappear, and there is no audio at all. Back

i could not find it on synaptic but i found the install.sh file and opened it with a terminal.? it ran but printed out a whole load of error messages mainly about a vendor prefix

Request for comments:? Is 9 pm a convenient time? Is 9pm a time that is good for band conditions? Is there a better frequency that you would recommend?

Ralph I tried your link but after logging in it said: ?The page you requested cannot be displayed at the moment. It may be temporarily unavailable, the link you clicked on may be broken or expired,

Came down late Chicago time 2115. Didn't hear any BITX CQ or QSOs to many heavy sigs got in the way. Called CQ Bitx QRP up and down around 7.179 Stopped calling at 2135 CST. Just one of those

I heard one station calling CQ at 9pm Central but no call sign given and no reply to my call. KF5YSA [email protected]> wrote:

I heard absolutely nothing around Northern NJ. Tried calling for a little while on 7.178 but no answers. Listened to 7.179 and heard no one. It seemed like the band had no activity besides some CW

Thanks Allard, I downloaded, compiled, and uploaded to Raduino and is very well. Thanks for your efforts. 73 de Carlos CX8ABF

Wow, noisy. CW, broadcasters, spanish stations. This is all I heard: al? ale? ka? kb1ek? kd1fsq? and none of those were clear.