Arduino Superheterodyne Receiver

[@berndg42]

Eine schöne Idee. Spiele schon lange mit der Absicht, so einen Bausatz für alle Typen von analogen Radios zu entwickeln.

[@radiofm7694]

Very interesting project, works surprisingly well 👍

[@acestudioscouk-Ace-G0ACE]

This was very interesting and taught me a lot. Thank-you.😊👍

[@damithj]

Amazing work Dilshan!

[@carlosmarmeli2587]

Que praticidade iso que é serviço profissional 73 abs.

[@DubiousEngineering]

I wish there was more of an explanation about the design and how it works rather than just a build video and music. Interesting to know you have done it, but how!

[@DilshanJayakody]

Did you check blog post associated to this? jayakody2000lk.blogspot.com/2021/10/arduino-superheterodyne-receiver.html?m=1 This link is already mentioned in the video description. Hope this is helpful to you.

[@achalasamapriya2701]

awesome .but keep in mind to use a ceramic screw driver to fine tune the IF transformers

[@yofimee883]

Proud of you bro! found you on #Hackaday !

[@jcbacol]

Excelente proyecto. pregunto... El si5351 tiene 3 relojes . se puede usar 2 clk, 1( uno) para IF y otro para el oscilador local?

[@santhoshsd7240]

👍👍👍

[@damithj]

How about taking the output into a PC and do the rest on the software like AGC...

[@DilshanJayakody]

Yes, this is a great idea! I also have plans to do a simple receiver design with a DSP core. Maybe a simplified DIY SDR receiver? :)

[@damithj]

@@DilshanJayakody Wow that would be cool! Wish I have time to do some too.. :)

[@rusras5873]

Good jobs👍

[@adambeedle]

Cool!

[@meddiys6171]

Very well, but i haven't Si5351 module!!!!!!

[@ashithariyapala3761]

Nice work Dilshan! I remember building superhets with those yellow , white and black IF sets back in school - used to get my stuff from Wikum radio nugegoda or Senith Electronics in Borella. Are these transformers still available? Kind regards Ash M0LKA.

[@DilshanJayakody]

Hello Ashith, thanks for your comment and I think I am also from that era 😀. I hope you remember the MW, SW, and FM radio circuits in Senith Sipnana, Kumarasingha Radio Books, etc. I.F transformers are now quite difficult to find in the local market. I know a few places in Pettah whos having old stocks. A few months ago, I ordered some I.F transformers from AliExpress, and it seems cheaper than buying from a local market 😊.

[@ashithariyapala3761]

@@DilshanJayakody! Yes :-) I remember the kits that Kumarasinghe Radio had... I went with my Father to Pettah as I was too young to go on my own back then - I got the AM/SW kit with the LA4102 audio amp(remember those?). The senith magazines were really good too, and most of my pocket money was spent in their shop , which was not far from my school - D.S :-). You have a great channel keep it up!

[@bsodmike]

What bench equipment did you need to design these boards, spectrum analyzer & signal generator? Nicely done.

[@DilshanJayakody]

For this project, I used only an entry level RF signal generator. It (RF signal generator) is not mandatory for this project, you can also tune I.F transformers using a strong radio broadcast.

[@bsodmike]

@@DilshanJayakody I'll drop you an email, if you like I'd like to help moving this to a SMT single board design. May be it would be useful to be sold as a kit?

[@hernanmarcucci7500]

ecxelent job !! which level in dB do you put in the receicer ???

[@DilshanJayakody]

Thank you. The oscillator provides 3dBm output.

[@deeppramanick8809]

1.Does the RF in(J1) from mixer to first IFT should be reversed, according to the schematic? i may be wrong. 2.can dector diode be used before 2nd if (for no reason) 3.curious about Sensitivity. thank you

[@DilshanJayakody]

Hi, 1. Wiring layout shown in the video is correct and tested. 2. Sorry, not much sure and clear about the configuration you suggested. 3. Yes, sensitivity is bit low on this receiver. I got string signals with my external antenna only.

[@Tektronics2007]

sir where can i bought si5351 module in sri lanka ?

[@carlosmarmeli2587]

Tem a venda ese produto para o Brasil Gotaria de ter uma resposta

[@lesleypaulvj_TVPM]

What mixer and product detector does it use?

[@DilshanJayakody]

It design around a standard superhet configuration and uses Germanium signal diode as detector. The full schematic is available in here: github.com/dilshan/arduino-superhet/blob/main/design/if-amp-455khz/if-amp-455-schematic.pdf

[@lesleypaulvj_TVPM]

@@DilshanJayakody Ok, will go through...

[@bejo.2167]

Shortwave

[@claudioalbertoortega]

Hi There. How/where does the circuit reject image frequencies? -- en.wikipedia.org/wiki/Superheterodyne_receiver#Image_frequency_(fIMAGE)

[@propoliozello4272]

No pantalla lsd