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Worked W4OBY (he was not on a BITX, but he HAS one in the works). ? Also worked KN4EAR and? KC8WBK. ?? Also talked to KI4PSR but he was not on his BITX (but he has 4!). ? 73? Bill N2CQR ?

Didn't find any bugs! As a matter of fact, I'm not sure where to find the?software! ? -- John - WA2FZW

For audio less than 1uF use mylar caps. They're good for bypassing DC for audio stages too, but I'd use ceramics for bypassing RF stages where microphonics and such things as self-inductance are

Ceramic capacitors turn out microphonic. Maybe the input or in the preamp stage coupling stage. As you say with volume turned up fully means that it is coming from preamp stage or earlier. Raj

Lots of hits on the web for "LM386 pin 7 mute". ?Most pull pin 7 low, though pulling high works too. ?Allard's now routing PTT through the Raduino and driving a transistor to turn on the relays.

All: This release fixes a bunch of bugs, presents a smoother frequency tuning, and more even scrolling through the menu options. The code requires an mcufriend TFT display (2.4" to 3.95" should work)

I used a 5v arduino relay module. with 1 normal open and 1 normal closed contact. I used the normally closed contacts so there is audio in rx mode. When tx occurs the contacts open. My power source

What type of relay works best for this?

Eric, Congrats on building up your BITX40 ! I really like the creative way you used pcb's from other circuits as your enclosure. The front of your rig really looks cool! 73, Al, N8WQ n8wq.com

That code is fairly common and I used it in my first encoder article in QRP Quarterly, which I have attached for those who might be interested: PCICR|= (1 << PCIE2); // Pin Change Interrupt Enable 2

Called CQ from 7 EDT until 7:15. Nothing heard! -- John - WA2FZW

I have spent some time txing with the mod.? I get a buzz or rumble in my headphones that is from my voice.?? Audio reports are good. Sometimes? frequency bumps down a tenth of a kHz or two when

John, I love your mic. Too bad you're not "Adam" or you could call it your "Invisible Hand Mic."? Dave, The mic is built around a piece of single sided copper clad pc board cut to fit in the pvc

I also installed the LM386 PIN 7 mod and found it works very well, the best noise reduction so far. I still found the TX exit noise a bit louder ,so I added a relay to open the speaker, this further

I heard the first part of the KO8? call, but just couldn't get the suffix letter.? We can try again next week.? Thanks for the call.? 73? Bill?

Conditions are tough, they may improve later in the evening.

I called CQ, no response.? I listened and heard a W4.??Then I heard?N2CQR (VA) in QSO, later he called CQ, I answered and heard him return my call, then nothing.? After about 1/2 hour, I went

It came from an example. It worked immediately so I left it? It deals with the registers directly. So, sorry I can't answer your question, and it is a good one! I guess we could find the code in

OK, we are on.? Let's hope for good band conditions.

Hi Don: Why do you use PCICR |= (1 << PCIE2);//Interrupt setup to enable interrupt insted of AttachInterrupt? 73 - LU5DNM Norberto Modanesi San Nicolás