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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); ?

Fixed! The no audio driver issue is fixed. I replaced the electret mic element and wiring. Thanks to all that had suggestions/comments. I used an identical looking element that had solder pins, from

Hello Jack (et al) I downloaded and loaded that library and got no immediate change. Fiddling with it, the section that you recommended adding to the set_frequency function works but the set-case

Jack Tracking with anticipation of your unveiling of this effort. Art N2AJO Sent from my iPhone

Jack You might find this code snip useful, I use this with the push-button on a rotary encoder to deduce a short-press from a long-press. Perhaps use a long-press of the? VFO A/B button to save to

Very elegant if 2 diodes work well enough. ?Might want variable gain at the mike amp so you can set the compression level. ?And then adjust R136 to determine the output power. Jerry, KE7ER

Hi Ed. I just changed out the green display for a blue with white characters. It is very bright. You mentioned that Don added a 470 or 1k resistor to the ballast circuit. Can you please tell me where

@Ashhar, So, if I understand well, the two germanium diodes should be placed here? 73, Allard PE1NWL

Right Farhan Your idea is good and cheap to try. RF clippers are the best. Simple AF processing is second best as the artifacts are inside the audio passband.. If I remember correctly, there was an RF