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John, Thank you for the suggestion. ?That sounds like the problem, but being a noobie I'm not sure how to check the BFO freq. ?C103/c105 appears to be empty currently.

Start by looking at your BFO frequency. If it is off a bit, all kinds of weird effects happen. It sounds like yours needs adjusting. The IF frequency has to be exact to pass the LSB signal in a clear

With QRP levels it is often a challenge to make SSB QSO's on 40m. With my BITX40 I need to shout in the mike to produce some TX power. It would seem logical to increase the "talking power" somewhat by

Gene Meant Gene - not Bob Art Sent from my iPhone

Hi Gene I would be interested in a copy of the code 73 de Charlie GI4FUE Sent: 18 February 2017 22:32 To: [email protected] Subject: Re: [BITX20] GPS corrected Arduino controlled VFO Hello Bob, I

Great, concise explanation and solution. Thank you for sharing. Marco - KG5PRT

Hi all, Went to use my bitx-40 and found no RF power output, started by checking the voltages on the IRF510, drain voltage was there, next check voltage on gate, zilch, nothing, narda. Next check

Bob I would be interested Art N2AJO Sent from my iPhone

Hello Gene Thank you for the article and additional info. ?I have a QRP-Labs VFO on my Bitx40 currently but I got the thing so I can play around with it. It sure has been a fun project. ?This is a

Hello Bob, I authored the article that you are referring to. The article is located at: < http://www.knology.net/~gmarcus/Si5351/Si5351_VFO_QEX.pdf>.??I recently modified the code to run on the

Just bought this enclosure ?message below is from another site I belong to ?you can email him? at?Rapid3dprinting4u@... for info 73 art Hi everyone. New to the page. I have made a couple

I built a BITX40. It has a clicking noise in the audio different from the clicks from the Raduino when tuning. It appears to be a problem in the front end. When I first connected the antenna there was

A nice article in July/August 2015 QEX magazine. Looks like an easy build. Bob N1ETS

Thanks for that, I will have to go hunting parts then, should be fun as its years since I built something from scratch. The tips sheet is a welcome addition to my files, still looking for a decent

Hello Phil, You could look here for theses mods: http://bitxhacks.blogspot.com/?m=1 & /g/BITX20/files/1%20docs%20of%20Tips%20n%20Mods Hope this helps. Marco - KG5PRT

The boards from SV1AFN are superb. The Si5351 is available from Etherkit however, with a TXCO.? 73 Bob WA2I Licensed long long ago in a place far far away...

Thank you?Ashhar for this informations,,, I found the damage but not on the ?filters coils, but one wire was torn off ?from ?trifilar T4 coil. I will try to fix it, or I will do a new T4. And so

John yes that is what trying to say thank you ray after stroke I don't communicate well Thanks Ray KC4DYM Sent from my iPad

Hopefully having fun, and maybe learning a bit. ?Looking like your original thought of a bad Si5351 was probably correct. ?Let us know what you find out.

Hi. Is there a Audio AGC & S meter kit anyone knows about, that I could either build or just purchase to install for use with my Bitx40. Phil - G7BZD