NOT a DDS HAM VFO with analogue dial

This video was created by JF3HZB a Japanese ham... Pure genius!

I watched this video first by Mirko Pavleski. Links below his vid to his hackster with all the details.

To fix issues with uploading the sketch to the ESP32 I watched this great video by Denis (Radio Rider channel)... saved my bacon!

Mr Carlson's Lab...AWESOME channel all about fixing radio stuff!
RCA listening Post receiver video

ESP32 pinout to help with deciphering the schematic

DRONEBOT WORKSHOP channel is AWESOME for lots of electronics ....video below for getting started with the ESP32.

HAM PLAYLIST LINK:
Merch
My REDBUBBLE store for Merch

Chicken channel logo shirt

Brains from the Thunderbirds Merch

[waltymsn]

Thank you for sharing your knowledge with the world, 73' from brasil

[kilokee]

Yes the Si5351 outputs a square wave signal so yes you do need a LPF to make it a sine wave. In my case, I built an external VFO for my Kenwood TS-520 where the on-board (internal) VFO operates between 4.9 Mhz to 5.5 Mhz that's mixed with the rest to create the exact operating frequency of the radio. Even though it did work with the square wave signal, it was best to serve it with a sine wave so I made a 5th order Butterworth Low Pass Filter with a cutoff of 5 Mhz using the LC Filter Design program on the Marki Microwave website. Came out pretty slick. Enjoy

[VladoT]

Mirko Pavleski lives near me, he makes incredible stuff

[npwkgby]

Can the production information be shared?

[radiorider]

Thank you very much for your kind words, they made my day.
I installed this VFO on a receiver I had built a long time ago and this display is really fantastic. I will use it again in other projects, for sure.
Here's the link to the receiver:


73 and all the best.
Denis F6CRP (new subscriber 🙂)

[mrsteeleye]

Great project, but way above my pay grade. Needs to be in kit format with all programming already done and tested.

[WTJM]

Love the rotary dial display! Resolution sounds perfect as well. Nicely done!

[bazzaar]

ANOTHER video/article saying DDS vfo or signal generator that ISNT DDS!!!!
as someone who is searching for DDS specifically, I'm getting pretty fed up with this internet wide mistake of calling PLL multisynth based signal sources like the si5351, DDS. Its even more galling when you actually have part of your presentation covering the harmonics produced from this circuit and not make the connection that it is the direct consequence of it NOT being DDS! Thats why you would use DDS, DDS is harmonic free pure sine waves. As you stated in this video a few times, the si5351 is a clock generator and produces square waves, now this CAN be used fine in most applications with simple filtering of harmonics and many radio projects have successfully employed them.
Like I say, its not just here, its seems internet wide that every Arduino, raspberrypi micro controller signal gen/vfo gets labelled DDS, and its incorrect, so sorry if it seems like I'm picking on you.
73 de G0AFV

[vkwgw]

More to the point and straight into the build. Less jibbering. Not an insult but you could have had that video wrapped up in 5 minutes. It's all about peoples attention span. After 3 minutes they start youtube searching again. Just saying bro.