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Hard to imagine how power to the PA would zap the receiver. ?Until you hit the PTT button, the two relays are in their receive position and the IRF510 really has nowhere to go. ?First thing I would

I got my bitx40 today, and tonight I started wiring things up. I figured I'd do things in stages & see how it goes. The raduino board powered up from the USB port & I got the tuning pot connected &

check the headphone jack for sound use a speaker or different headphones

i have left mine on over night today i finally wired a relay to work with the 12 volt power on it closes the relay and powers 24 volt to the final and my 24 volt fan cooling it

ok, I didn't even think to check output, but yes I have output. ?So, it is definitely in the receive portion. ?Could just be audio. ?I'll keep looking, but if you have any ideas, I would appreciate

The only other mod I've done is a 4 pin hookup for a Uniden mic. ?I will hook up the watt meter and see if anything is transmitting.

Good question. ?I doubt it will affect receive unless you get a really strong station, and at that point it might be desirable as it could save your eardrums if wearing headphones. ?There is

What other mods have you done the Rec works on the 12 volt input.? Do you have output?

Last night I left my bitx PA hooked up to 25volts all night. ?Today when I got to my radio I have NO receive. ?No radio hiss, no nothing. ?Could I have burnt something up leaving it hooked up to 25

Has anyone been able to come up with either a vox ptt or a serial PTT that works the one that i used with my kenwood 520 didn't work just kept closing the circuit no matter what I did couldn't get it

Purchased BITX40 on March 17. Received today, April 3rd. in 17 days To Northern Idaho. Excellent packaging s/n 0317 Larry Gruber K7LJG

Would the two diodes only affect transmit audio? Sent from my iPad

We'll keep you posted! Jack, W8TEE To: [email protected] Sent: Monday, April 3, 2017 5:12 PM Subject: Re: [BITX20] Adding speech compression. Jack Tracking with anticipation of your unveiling

Sorry, but I put your code somewhere I can't find it. It would be best if I worked from the code you have now anyway. Yep, and I'm looking forward to it. I've been there the last three years and have

Are you the one who started this hack a few days ago, and asked others for input? I did this a couple of times the past couple of days. The first time seemed to have no change to my birdy which is

I would like to read a bit more from Farhan about clipping RF and what the diodes will do. And does Allard have them in the right place? Will it give me a little higher average power output? Getting

Hey. Mike. FB! Most of the electret mikes are the same. Go with what works. That's usually the best way anyway. You can always search for a better way after you have something that

I've just released raduino_v1.05.ino - download it from https://github.com/amunters/bitx40 ( https://github.com/amunters/bitx40 ) New in this release: Increased VFO drive level in order to kill (or

OK Group, I have W3PM's code working with some slight modifications to the software and hardware (I had to rewire The clocks and add a push button for band change). Thanks to all that helped! Mike

Eric, The code I'm using is a little different, the interrupt calls set frequency ISR(PCINT2_vect) { ? unsigned char result = r.process(); ? if (result == DIR_CW) ? ? set_frequency(-1); ?