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I have updated the circuit descriptions on the website. http://www.hfsignals.com/index.php/ubitx-circuit-description/ There are links to the two previous versions too. - f

Jericho I suspect it's a connection issue between raduino and the main board. Support provided by proper assembly of standoff hardware is important.? I remember having to disassemble mine a few

Bob There should not be a huge difference in sensitivity.? possibly your bfo setting is out of calibration.? how do ssb signals sound?? make sure you don't have a short across the antenna

Ted, Thank you for your test. If you send a private YouTube video, I can easily find the problem. and Can you send me your uBITX configuration file? (uBITX Manager -> Connect -> Read from uBITX ->

Ian, Tnx agn for your valuable work on this. ?I do notice a problem when on the CW settings (CWL, CWU).? It's almost like the IF is all wrong. almost non-existent reception, and an

Thank you Larry.

I count 5 different schematic not including HF1 or minima (2014). The design was evolutionary and the first production boards are V3, then V4 now V5. V3 had the TDa2822 (major item), first

Hi Jon, If you have a V4, I would be interested in seeing a measurement across the two diodes in the AF amp.? Rumor was in production, Schottky diodes were installed there instead of what should be

I will check it during a pit-stop in the ARRL DX SSB contest this weekend. The output cable to the plastic rear panel is the stock bifilar twisted many times, made a bit shorter. I will replace with

Mike, Should have mentioned that if the Nano is not socketed in your existing Raduino you will need to change the whole Raduino. Bob GM4CID

Mike, With the V5 board change the Nano to the one that came with your new V5 board and you should be good to go. Bob GM4CID

Raj, Thank you for the info. Is there a pdf of wave forms expected at the TP's? Thank you for any assistance. Jon S

John, Thank you. I have a V4. Jon S

Curt, Thank you for the info. Jon S

Good spot!

Glad to help Enjoy [email protected]> wrote:

I have a Bitx 40, I can't help you with your problem but just had to say that I love your name ?, regards Bill (G6ATO) Bates.

V3 Audio output TDA2822 V4 Audio output discrete transistors V5 Audio output LM386

I received my uBitx yesterday. Can someone explain to me how to tell which version I have. No revealing marking on the board or packing slip. Thanks Bill

The push button does work, but can not change function options after that. It leaves the version up there, not sure if it suppose to or not.