Si5351 + Si4735 DSP Radio Double Conversion - Update SSB Reception

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  • เผยแพร่เมื่อ 21 มิ.ย. 2020
  • Si5351 + Si4735 DSP Radio Double Conversion - Update SSB (USB/LSB demodulation) added via Si4735 SSB Patch. The tuning of the HAM station is continuous and smooth, without sound cuts or muting (or the chuffing sound) typical of low cost DSP receivers.
    I integrated in a single sketch (Arduino) the control of Si4735 and Si5351. I used the Arduino Nano.
    -------------------------------
    New tests with my development board: reception of the Si4735 DSP acting in double conversion and in this way the tuning of the stations is continuous, without sound cuts or muting (or the chuffing sound) typical of low cost DSP receivers.
    In the test I use the Si5351 clock generator as a local oscillator and send it to the Mixer SA612, which results in a 10.7MHz IF that is sent to the Si4735 AMI PIN input. The Si4735 in turn is tuned fixed at 10.7MHz, so the tuning is done in a continuous way by varying the frequency of Si5351. Another advantage is to use the filters and demodulation of AM or SSB done by the DSP.
    Note: the antenna used in the test is a piece of 7 meter electric cable stretched inside the house. 73!
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ความคิดเห็น • 23

  • @katsumo8624
    @katsumo8624 2 หลายเดือนก่อน +1

    I was struggling with the muting issue during frequency changes on the Si473x and never thought to solve it by not tuning with the Si473x itself. You are a genius! Thank you!

    • @Cesarsound1
      @Cesarsound1  2 หลายเดือนก่อน +1

      I'm happy to know that you were successful with the idea.

  • @4youian
    @4youian 4 ปีที่แล้ว +1

    Another great test. Thanks so much!

  • @eduardoguerra8908
    @eduardoguerra8908 4 ปีที่แล้ว +1

    Muito bom show de bola o projeto ha 5 anos atrás montei um receptor com um varicap de receptor da TVA um tocom e ficou show com controle, porem sem display

  • @maciekbal5924
    @maciekbal5924 4 ปีที่แล้ว +1

    Fantastic. Time to CW TRX ;-)

  • @i.b.pmayun2994
    @i.b.pmayun2994 9 หลายเดือนก่อน +1

    Maybe you can show the schematic.I want to know how it's work. Thank you

  • @AxelWerner
    @AxelWerner 3 ปีที่แล้ว +1

    Sweet. Where are the schematics?

  • @user-uw8iq9fi7l
    @user-uw8iq9fi7l 3 ปีที่แล้ว +3

    добрый день! увидел еще один ваш проект и конечно хочу его повторить. но я так понимаю , что проект до конца еще не доделан. ... и хотелось бы в качестве дисплея увидеть что нибудь побольше например цветной дисплей 1.8 или 2.4 дюйма .good day! I saw another project of yours and of course I want to repeat it. but as far as I understand, the project has not been completed yet. ... and I would like to see something bigger as a display, such as a 1.8 or 2.4 inch color display.

  • @alexandre.teixeira13
    @alexandre.teixeira13 2 ปีที่แล้ว +1

    Esse seu projeto foi um dos mais bacanas que vi ate agora, desses "faça você mesmo". Adoraria montar um desses pra deixar na bancada ou ate levar nas trilhas que costumo fazer pra tirar umas horas preciosas de radio escuta. Você vende esse kit ou disponibiliza o projeto, tanto o eletrico quanto a escrita para o Arduino??
    Que Deus te abençoe pela grande capacidade e por nos mostrar esse maravilhoso aparelho.
    Um projeto como esse vale a pena guarda-lo em um fichário junto com seus livros mais importantes.

    • @Cesarsound1
      @Cesarsound1  2 ปีที่แล้ว +1

      Olá Alexandre, obrigado por assistir e pelas palavras, Deus te abençoe também! Realmente este receptor mostrado no vídeo está bem guardado, tem um valor especial para mim. Como este projeto ainda é experimental e protótipo e eu o fiz para meu próprio uso e aprendizado, não tenho tudo documentado de uma forma que outros possam montar e ainda assim a programação do Arduino tem pontos incompletos. Pretendo em algum momento organizar todas as informações e compartilhar este projeto. Infelizmente não faço para venda, apenas para meu uso, mas agradeço o interesse. Obrigado!

  • @9h5bmjason19
    @9h5bmjason19 3 ปีที่แล้ว +1

    Nice project, Can you share the project?

  • @best3140
    @best3140 3 ปีที่แล้ว +4

    can you share how to build it one ? 73.

  • @rinaldoferreira4520
    @rinaldoferreira4520 3 ปีที่แล้ว +1

    parabéns pelo projeto, só uma pergunta vc vai disponibilizar o projeto , grato...

    • @Cesarsound1
      @Cesarsound1  3 ปีที่แล้ว +1

      Olá Rinaldo, obrigado! Pretendo compartilhar sim, o sketch e os esquemas, irei publicar no Arduino Project Hub assim que o projeto estiver mais refinado e documentado. 73!

  • @adrianobatedor
    @adrianobatedor 4 ปีที่แล้ว +1

    Década de 90 montei um receptor com TDA7000 ,só por curiosidade , até que funcionava mas em dados momentos saia uma oscilação no áudio muito chata, invalidando o projeto.

  • @johnwest7993
    @johnwest7993 ปีที่แล้ว

    Schematic? Software?

  • @RadioNino
    @RadioNino 3 ปีที่แล้ว +1

    Excellent !!!
    Cesar .. ..please is it possible to have schematic and relative schetck.ino ??
    (even if not yet perfected .... to us who follow you with so much interest, it serves to carry out experiments in this direction.)
    it would be great to apply this double conversion setup to your Rx with the ESP32 card ... !!
    thanks
    Great !
    Hello

    • @Cesarsound1
      @Cesarsound1  3 ปีที่แล้ว

      Hello RadioNino, thanks for your interest and for watching my videos. I don't have the schematics yet, but I prepared a block diagram of the receiver and also a draft sketch (not functional) serves only to have a basic idea (see below link). I intend to share the sketch and the final schemes, I will publish on the Arduino Project Hub as soon as the project is more refined and documented. And maybe I also have free time to make a version with the ESP32 and TFT display ILI9341 touch. 73!
      www.dropbox.com/s/863p15xo8aiwfz2/SI4735_SI5351_DUAL_DRAFT.zip?dl=0

    • @RadioNino
      @RadioNino 3 ปีที่แล้ว +1

      @@Cesarsound1 Thanks Cesar ...
      as soon as I find some time I will start experimenting with this type of double conversion configuration ...
      I believe that I will certainly have enough time available because here in Italy we are already thinking about a new lockdown due to the rage of the Covid-19 virus ...
      However, we hope that this scourge will soon end.
      Hi Cesar .. a hug

  • @carlosmarmeli2587
    @carlosmarmeli2587 2 ปีที่แล้ว +1

    E daí que beleza de trabalho bonito muito bom mesmo tinhão que dizer onde pode _ se comprar uma jóia dessas pronta montada pra usar ok? ABS,..73

    • @Cesarsound1
      @Cesarsound1  2 ปีที่แล้ว

      Olá Carlos, obrigado pelos comentários! Este eu montei só por hobby, eu não faço para venda. Talvez logo apareça algum chinês vendendo no Aliexpress. Abraço, 73!

  • @Lindomar850
    @Lindomar850 4 ปีที่แล้ว +1

    Muito bom, alguem poderia comercializar em kit. 73