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Roger, have they supplied you the board with raduino? If so i humbly feel , no point in seekin alternate components. All the best Regards. Sarma vu3zmv

Jerry You are entitled to your opinion, I just don’t happen to agree with you. The video online reference that I was sent refers to those components being present. There are minimal connections to

Roger, L4 has not been stuffed on the Bitx40 since late 2016, when it first started shipping with the Raduino to replace the rather unstable analog VFO.? (If L4 were stuffed, the analog oscillator

As raduino has taken over vfo , perhaps they stopped mounting those 2 parts .

Hi Vic The video has helped a lot as I only needed the first minute to work out that the VFO is never going to oscillate as C93 and L4 are missing, per the picture below! I put the scope on Q7 and

+1 for Dean's (KK4DAS)? approach. (1) CAT control? USB cable drives both freq and TX/RX (PTT). (2) Audio patch cables drive the audio between laptop audio i/o and uBITX i/o. The simplicity and

As I recall, there have been reports of some of the small toroid leads being broken from rough shipping...seems like those reports were from the UK, too. These are great little radios and I have

Werner, I reread your post.? Since the RX audio is perfect, the hum could be coming from either the mic input or the power supply due to higher current draw on transmit. Do you get the hum with the

Hi Werner, It sounds to me like the problem could be the opposite, a ground loop where there shouldn't be one; maybe caused by the enclosure or standoffs touching something it shouldn't. Try to remove

Thanks Curt! -- 73! de KJ7EZN? ?Jim

Jim I had an old kenwood mic, using what I had. I cut the cord after I identified the stock wiring. Let's see you need 3 pins, audio, ptt and return. If you are doing homebrew case, consider what you

Thank you to all that have relied!Neil

Thanks Vic. The wiring is correct, but I was intending to sort the bird's nest after checking the unit was working okay. After the initial issue with the outdated instructions on how to connect the

Speaking of - I got my Antuino parts kit in the mail today. Many interesting stamps on the envelope too.

We have a wiki page on this topic you might find helpful. /g/BITX20/wiki/Digital-Setup Like all wikis, if you have helpful information to add or find errors that need correcting it

I wonder, Ray: how is it to ZL? Dateline having some effect? :) 73 Dex ZL2DEX

Hi all-- I've got a microBitx out for delivery today and I am excited.? I have noticed quite a few pictures of folks using MFJ mics.? There are a plethora of connector options to choose from.? What

I went straight from the uBITx headphone jack to the mic jack on my laptop, and from the headphone jack on the laptop to the mic jack on the uBITx.? I had to adjust the levels for both the mic and

Mark, I did not realize that was possible. I will look into it - thanks! Paul

Neil, I too used a easydigi and a RS232 board for ptt. My site should have some interfaces coming soon that will be in and around 2, I will post more details on that later. Below is what I used for my