I'm not sure what the problem is. When I put the kit togteher, the audio was fine - nice and strong. However, when I tried to set up the BFO, the audio virtually disappeared. I can receive with the ri

Now I know the real answer to this is 12V, but I'm interested in what people have tried. My reason for this is that I plan on using the uBITX for POTA/SOTA, Field Days and the like. For all of these e

Congratulations are in order for our fellow operator, Stephen Martin, KO4CVU. He won the "Single Operator Digital Mode" section of the 2022 Virginia QSO Party contest. Stephen was running a Version 6

I recently finished up my version 5 and lo and behold to my surprise, I have no display. I have checked all the wiring over twice and cannot find any errors. Has anyone run into this problem. All othe

Greetings. I am looking for a Arduino NANO sketch to be able to generate two signals from a si5351. I have found a few on the net but they all are part of other projects that I have not been able to f

Hi everybody, I connected a GPS PPS to D2 of the ubitx arduino, and CLK #0 of the raduino board to D5 of the ubitx arduino (and the proper small modifications). I can get the 1 PPS interrupt ok, but I

Hi all, Starting work on a bitx20 v3 board graciously sent to me by KC0WOX. It seems that the front end top coupled filter needs realignment as I can't hear anything on the the band. So my questions a

Hi everyone I was having a look at the various descriptions of Mbitx re the amplifiers There is reference to http://w7zoi.net/bidirectional_matched_amplifier.pdf A Termination Insensitive Amplifier fo

First of all, thank you very much to all of you who have been interested in this project. There are still some PCB requests that I haven't been able to fulfill, so I'm ordering a new batch of boards.

I am coming late to the party. I just assembled the original Bitx40. Upon completion all seemed OK. Signals and all. The tuning was very tight so I replaced it with the 10k Bourns 10 turn 3590S-2-103.

Hello, KD8CEC provided several HEX files I wanted to know how to create a HEX file to upload it to the arduino nano with Xloader. Can it be created from the Arduino software after compilation, or does

Hi all, Need help from hams particularly from UK based ones. I have a wideband PA kit from Hands Electronics. It uses 2x2SC2166 in the output stage and 2x2SC1971 in the driver. Pre driver is a 2N3866.

To the youtube movie I show how I did it with scrapped materials: https://youtu.be/ZwK9QpljkuA Just to give an idea, depending on what materials you have available you can make your own design. To pre

21 MHz is now open almost all the time. Here is what turned up on the sbitx this evening, just before dinner. Please note the decodes are within the sbitx screen.

So far my searches have not yielded anything so I come to the collective for wisdom! ;-) I have two BITX40s and would like to convert one of them to 20M. Is there a message that covers this already an

I have a new, assembled uBitx V6 available. I received it new in January and out of box, I could not get it to work well in CW mode, which was my intended use, and the mic was inop, replaced by HF Sig

Hello Sunil, It is a 2SC2570. Also has anyone tried replacing the two mixer 1N4148s with Schottky diodes to reduce conversion loss? Regards Aurangzeb

I have about given up on getting ft8 to run on my Ubitx v6. The setup for cat control is what is stopping me. I have incoming data working and I have fldigi cat control working but I cannot get the ws

Hi everyone, I just built one of the older AGC audio boards which was designed by Farhan and sold by Dave Heron.(see schematic) I'm a little confused because videos that I watched by W2AEW (different

I found the issue with this rig. Turns out there is a problem with the Arduino nano that came with the radio. Pins A3 and A4 show a direct short when plugged into the Raduino board, even under no powe