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  • How to make a HW SSB detector with Tayloe detector?

    From LM@21:1/5 to All on Mon Jul 25 14:04:52 2022
    I found a nice schematic of a Tayloe detector, which would make a nice
    HF receiver. http://www.norcalqrp.org/files/Tayloe_mixer_x3a.pdf
    But the Tayloe detector outputs I and Q signals, what about AM or SSB?
    I want HW, SDRs are nice but I understand HW and I wont carry a laptop
    around.

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  • From Rob@21:1/5 to sala.nimi@mail.com on Mon Jul 25 13:14:28 2022
    LM <sala.nimi@mail.com> wrote:
    I found a nice schematic of a Tayloe detector, which would make a nice
    HF receiver. http://www.norcalqrp.org/files/Tayloe_mixer_x3a.pdf
    But the Tayloe detector outputs I and Q signals, what about AM or SSB?
    I want HW, SDRs are nice but I understand HW and I wont carry a laptop around.

    You can use a polyphase network, e.g. as shown here: http://www.hanssummers.com/polyphase.html

    --- SoupGate-Win32 v1.05
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  • From LM@21:1/5 to Rob on Mon Jul 25 18:49:31 2022
    On Mon, 25 Jul 2022 13:14:28 +0200, Rob <nomail@example.com> wrote:

    LM <sala.nimi@mail.com> wrote:
    I found a nice schematic of a Tayloe detector, which would make a nice
    HF receiver. http://www.norcalqrp.org/files/Tayloe_mixer_x3a.pdf
    But the Tayloe detector outputs I and Q signals, what about AM or SSB?
    I want HW, SDRs are nice but I understand HW and I wont carry a laptop
    around.

    You can use a polyphase network, e.g. as shown here: >http://www.hanssummers.com/polyphase.html
    Thank you, that really seems to have the answer. Tayloe detector has
    1-4 outputs and that circuit uses them.

    More silly questions, what about AM?

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From LM@21:1/5 to Rob on Mon Jul 25 19:40:15 2022
    On Mon, 25 Jul 2022 13:14:28 +0200, Rob <nomail@example.com> wrote:

    LM <sala.nimi@mail.com> wrote:
    I found a nice schematic of a Tayloe detector, which would make a nice
    HF receiver. http://www.norcalqrp.org/files/Tayloe_mixer_x3a.pdf
    But the Tayloe detector outputs I and Q signals, what about AM or SSB?
    I want HW, SDRs are nice but I understand HW and I wont carry a laptop
    around.

    You can use a polyphase network, e.g. as shown here: >http://www.hanssummers.com/polyphase.html
    This looks like it. From the same page.
    An Experimental Polyphase Receiver by Bozidar Pasaric 9A2HL, Croatia http://www.hanssummers.com/gallery4.html
    He uses constant resistor values and varies capacitor values. High
    tolerance capacitors are more rare that resistors, so I'll use this
    calculator. http://rxtx.me/polyphase
    Digikey has +- 1% 22nF and others capacitors, I am sure others have
    too. TME didn't have suitable values.
    This polyphase network may need some optimization.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Rob@21:1/5 to sala.nimi@mail.com on Tue Jul 26 11:29:03 2022
    LM <sala.nimi@mail.com> wrote:
    On Mon, 25 Jul 2022 13:14:28 +0200, Rob <nomail@example.com> wrote:

    LM <sala.nimi@mail.com> wrote:
    I found a nice schematic of a Tayloe detector, which would make a nice
    HF receiver. http://www.norcalqrp.org/files/Tayloe_mixer_x3a.pdf
    But the Tayloe detector outputs I and Q signals, what about AM or SSB?
    I want HW, SDRs are nice but I understand HW and I wont carry a laptop
    around.

    You can use a polyphase network, e.g. as shown here: >>http://www.hanssummers.com/polyphase.html
    Thank you, that really seems to have the answer. Tayloe detector has
    1-4 outputs and that circuit uses them.

    More silly questions, what about AM?

    The I or Q outputs already implement sort of AM (actually DSB) detection.
    Of course it would be better to have a PLL to lock the VFO frequency
    to the AM carrier.

    However, it certainly is easier to do everything with SDR.
    You do not need a laptop, there are designs that use small computer
    boards of the "Raspberry Pi class" to implement a portable SDR receiver.

    I have a "Malahit DSP SDR" which is a selfcontained SDR receiver with
    a 50 kHz - 2 GHz range doing all modes and with a size smaller than
    a small pocket book (including built-in battery). That shows it
    certainly can be done.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From LM@21:1/5 to Rob on Thu Jul 28 19:11:06 2022
    On Tue, 26 Jul 2022 11:29:03 +0200, Rob <nomail@example.com> wrote:

    LM <sala.nimi@mail.com> wrote:
    On Mon, 25 Jul 2022 13:14:28 +0200, Rob <nomail@example.com> wrote:

    LM <sala.nimi@mail.com> wrote:
    I found a nice schematic of a Tayloe detector, which would make a nice >>>> HF receiver. http://www.norcalqrp.org/files/Tayloe_mixer_x3a.pdf
    But the Tayloe detector outputs I and Q signals, what about AM or SSB? >>>> I want HW, SDRs are nice but I understand HW and I wont carry a laptop >>>> around.

    You can use a polyphase network, e.g. as shown here: >>>http://www.hanssummers.com/polyphase.html
    Thank you, that really seems to have the answer. Tayloe detector has
    1-4 outputs and that circuit uses them.

    More silly questions, what about AM?

    The I or Q outputs already implement sort of AM (actually DSB) detection.
    Of course it would be better to have a PLL to lock the VFO frequency
    to the AM carrier.

    However, it certainly is easier to do everything with SDR.
    Sure, I have a dongle from SDR-kit.
    You do not need a laptop, there are designs that use small computer
    boards of the "Raspberry Pi class" to implement a portable SDR receiver.

    I have a "Malahit DSP SDR" which is a selfcontained SDR receiver with
    a 50 kHz - 2 GHz range doing all modes and with a size smaller than
    a small pocket book (including built-in battery). That shows it
    certainly can be done.
    I think I saw DSP software for STM32 chips, and I can build a board
    for some them.
    But, it is not hard to design a board for a circuit in page 7 here http://www.norcalqrp.org/files/Tayloe_mixer_x3a.pdf
    For me, digital design or board design is easier than putting foreign
    some software to STM32 CPU.

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