there are some creaky bones like us who are stull puffing the ol bitx20. this way before this city came up here. we'd hunt 'em nylon tap washers and cook 20 meters on nights of 2009 cycle. - f

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Hi, I have ver3. I get garbled audio even after aligning the BFO. There is also a -ve frequency offset of 2khz. Any inputs as to how I could correct it. Thanks in advance Rajesh VU3RHU

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Hi Malcom, Thank you for sharing your schematic for the unit. Will check the junk box for parts before ordering parts, or possibly David's kit. I'll check your QST lead for further information. Thank

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Richard, Glad is was an easy/not costly fix. Hope to catch you on the air. BTW, here is a good process to follow for BFO calibration: https://www.hfsignals.com/index.php/bfo-tuning-aid/ I would also s

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there is a lot to be said for perseverance, at last i finally got it back to stock but when sending cw unless you send very slow /large gaps it locks up and sends a burst of steady cw, could this be a

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This is one of those kits that has a little bit of work to it - it is NOT a plug in and go (the V6 sounds like it BTW - I think you can even get it assembled and tested for a few $$ more). Unless you

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Somehow the new version is not intslling on my 64 bit win 7 laptop . Incidentally one could hombrew vk3bhr lc meter 2 using pic16f628a. It works well, i have been using it for a decade now. Sarma vu3z

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hi curt, G3PCJ Walford electronics here in the uk has produced a linear,mine and a friends use a 5 watt qcx to drive it up to 45 watts on 40 using a pair of irf 510s.but can be made for any band..rega

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Albert! All tested, that works perfectly! Thank you so much! Wayne O.

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Maybe this? Have a look at Errors and learning with Bitx40 just a few topics down . . . F- Subject: I only received the audio from an AM radio. The frequency changed but nothing else was heard. Soluti

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I think you meant Mistakes are made by those who do things, but then even those who never do anything make a mistake by not doing anything. and it is so true. . _._,_

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Hi Dries, It looks like you have been working hard on this. Good job to get this far! It is much harder to work from scratch, than to build a kit, but you can learn a lot! This site: http://golddredge

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I need some help trouble shooting bitx 20 ver 3b mixer stage. The VFO p-p is 125mv (In fact I had to add a capacitor to the frequency counter for it to work)) Q7 dc voltage is per the manual , when I

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Newbie to uBitx and at 74 years young new to arduino also. I have a V5 ubitx. Having trouble calibrating frequency & BFO. I can adjust the frequency listening to another receiver and I can adjust the

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Thanks to all of you for your input...Regards Jes M0JSW

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The standard 8-way looms are colored per resistor code, 0 - 7. These correspond to pins 1 - 8 then 9 - 16. Smaller connectors similarly color 0 onward for numbers 1 up. I don't have a ubitx so I can't

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The standard firmware only provides basic LSB functionality. Improved Raduino firmware for BitX40 supporting LSB, USB, CWL, CWU, and other useful functionality is available at https://github.com/amunt

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What is the link to the assembly instructions you are using? Leonard

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Can you give a little more specifics on how you found the receivers were different?

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when I try to read the information in the drawing, it is all fuzzy and unreadable, can you send me a file that I can print out and be readable ? thank you.

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