Mark, You are on the right track. All you are trying to do is hack the code so the si5351 VFO mimics what the old analog VFO does. You could get a generic VFO, perhaps from QRP Labs, and ask it to tun

#raduino #bitx20

Mark, Though many of us do program Arduinos, some of us have forgotten details of Allard's code. It is best to contact him. Your project is very interesting. I would love to see the results. - f

#raduino #bitx20

Anyone with any software expertise that can comment on my post of a few days ago? If not, does anyone have contact details for @Allard @PE1NWL - thanks! Mark, M5BOP

#raduino #bitx20

Hi all (and particularly Allard Munters PE1NWL if you are monitoring!) I would like to add a Raduino to my original BITX20a (built from the QRPkits.com kit). I have obtained a PCB for the original BIT

#raduino #bitx20

I have made a video showcasing the easy bitx through hole and smt kit . Hope you would like building one . Link below for my you tube video https://youtu.be/xDZ6nd90W44 Please comment and subscribe to

#bitx20 #bitx40

Many thanks Curt - as you say, going back to first principles provided the answer! I’m gonna try using the LC VFO as a first outing, but if I find it a struggle to operate may replace with a PLL. To d

#bitx20

good idea to take a moment to understand resonance - it is when the reactance of the L and C cancel each other. also in the equation for resonant frequency - the L and C are in the bottom of the fract

#bitx20

Correction to my message above - low end VFO frequency is currently around 3.087MHz - missed a zero out on my original post - apologies!

#bitx20

Hi Ashhar and all, I finally started building a BITX20 kit (original discrete component design, not uBITX) during the lockdowns, and have now got the RX working. Just setting up the VFO coverage and n

#bitx20

We have uploaded the Easy Bitx Version 2 docs. The coils data is the same for both versions easy bitx version 1 and version 2. The easy bitx version 2 audio amp is mounted on the front panel board wit

#bitx20 #bitx40

I would suggest to use 13.5 v for reasons output .

#bitx20 #bitx40

The 65 USD is basic kit without enclosure.. The 95 USD kit is with enclosure and PTT mic .. PA IRF 510 has provision to connect supply to 12v or 24 volts . So if you wish to use 12v for Final then con

#bitx20 #bitx40

Hi, What is the difference between the $95 and $65 versions? Also the 24v power terminal on the back - presume this only supplies the PA for higher power output? Is the 24v input regulated down to 12v

#bitx20 #bitx40

The version 1 and the version 2 easy bitx have the same circuit . This newer version has done away with wiring. I shall upload the documents tomorrow for the new version . Infact the performance is mu

#bitx20 #bitx40

The kit offered is through hole version . We have both SMT and through hole . Listing on website is of through hole . This new kit does not have any wiring to be done . Infact it's much easier to cons

#bitx20 #bitx40

I can not find the kit referenced above. The prior kit is pictured, and the manual does not seem to match the pictures above. Would you please provide the link to the correct kit? 73 Evan AC9TU

#bitx20 #bitx40

Very beautifull ! but I much preferred the Through Hole version easier to assemble and possibly to modify ... the EASY BITX # 6 (V1 version with AGC and blue box) that I bought last year, it was much

#bitx20 #bitx40

We have a new stock for easy bitx kits . This kit is much improved and has no wiring . The kit is very compact and portable too . Check out in our store .. Colors available . Black . Black with white

#bitx20 #bitx40

Hi Kelly Glad you got working to your satisfaction. A 386 might only put out a half of a watt. I have the bfo set for the sound that I hear the best. It isn't the most even type of sound level but it

#bitx20

Hi Dave, I checked the bfo with the bfo tuning aid, and it falls dead on between 300 and 3000 as farhan shows in his video. So I'm thinking lm 386 is not driving the speaker well. I borrowed a set of

#bitx20