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If you are a programmer...this is for you

Member ✭✭
edited August 2020 in SmartSDR API
Hi Folk
I am looking for someone with some progamming skills to implement the actual smartsdr with a simple 3rd parties software integration.
I know "simple" means nothing but I am looking for something to control antenna input by PTT in "multiflex".

TNX

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Comments

  • Member, Super Elmer Moderator

    Hi Luca

    Some or all of what you are looking to do may be available with Node Red or FRStack running on a Raspberry Pi. Can you list what you want? Give examples also.

    When using MultiFlex how do you want to control the antenna selection? You might be able to use one of the 4O3A antenna switches which can be programmed to automatically select the proper antenna per band.

    Dave wo2x

  • Member, Super Elmer Moderator

    Hi Luca, are you trying to implement remote antenna selection? I did that by using a cheap ($20 or so) WiFi 4 channel Smart Controller (model SANT-4CH). I also bought an antenna switching board from e-bay and soldered on relays and SO-239 connectors. With this I have the capability to switch to any of four antennas. In my case, I kept one switch position to allow me to remotely power on/off my Flex 6400. That leaves me three positions for my three antennas. I can remotely control the antennas and Flex power anywhere I have cell service by using an app on my phone. Is this what you were looking for?

    73,

    Len, KD0RC

  • Member ✭✭
    > @KD0RC said:
    > Hi Luca, are you trying to implement remote antenna selection? I did that by using a cheap ($20 or so) WiFi 4 channel Smart Controller (model SANT-4CH). I also bought an antenna switching board from e-bay and soldered on relays and SO-239 connectors. With this I have the capability to switch to any of four antennas. In my case, I kept one switch position to allow me to remotely power on/off my Flex 6400. That leaves me three positions for my three antennas. I can remotely control the antennas and Flex power anywhere I have cell service by using an app on my phone. Is this what you were looking for?
    > 73,
    > Len, KD0RC

    Hi Len,
    tnx for your reply.
    No it is not my goal.
    TNX anyway
  • Member ✭✭
    > @"David Decoons, wo2x" said:
    > Hi Luca
    > Some or all of what you are looking to do may be available with Node Red or FRStack running on a Raspberry Pi. Can you list what you want? Give examples also.
    > When using MultiFlex how do you want to control the antenna selection? You might be able to use one of the 4O3A antenna switches which can be programmed to automatically select the proper antenna per band.
    > Dave wo2x

    Hi Dave
    TNX for your message.
    This is contesting ralated.
    Imagine a station with 2 operators on parallel on same band with PTT priority controlled by multiflex.
    The idea is to have a software integrated in smartsdr that can swap RX ANT1 to RX ANT2 or RXA or RXB when 2nd operator press PTT.
    If you can give your email I can send you more datails.
    TNX
    Luca
  • Member ✭✭

    ciao Luca I saw something similar with a sw called RXassistant, but with differnt logic,

    probably it might be a good start to work on.

  • Member ✭✭✭✭

    Luca and Dave, Wo2X

    I run two Flex clients at my QTH, with two instances of FR Stack , each running on its own Raspberry Pi; each Pi, bound to one of the two clients.

    It would be easy to do as Marco asks by using the PTT variable from one client, then MQTT the PTT state to the other Raspberry Pi / Node-Red, then use that to tell FR Stack to send the desired RX antenna selection command to the other Flex Client.

    Marco, you could learn how others are using Raspberry Pis, Node-Red and FRStack by looking over our forum:

    https://groups.io/g/nodered-hamradio


    Alan

  • Member ✭✭
    > @"marco rinaldi" said:
    > ciao Luca I saw something similar with a sw called RXassistant, but with differnt logic,
    > probably it might be a good start to work on.

    Hi Marco,
    RX assistant does part of what is in my idea.
    Scenario is multilfex and setting 2 op's on same band sharing same TX antenna (ANT1)
    OP #1 is RX-ing with ANT1 on slice A and ANT2 (or RX-A or RX-B) on slice B, diversity activated
    OP #2 is RX-ing with ANT2 (or RX-A or RX-B) on slice C and TX-ing with ANT1 when needed
    OP #2 has PTT priority so when PTT is pressed he picks up ANT1 TX and put on silence slice A.
    At this moment OP#1 is deaf due to no any antenna available.

    The software should swap temporary (as long as op#2 has PTT pressed) ANT2 (or RX-A or RX-B) from slice C to slice B. Slice B audio (previoulsy covered by Slice A audio now muted) is now into OP #1 ears that can still copy signals on his own QRG managing the pile-up without breaks.

    Because I see RXassistant can do something like this I can guess all this can also be done without any external hardware because all necessary hardware is already available inside flex radio.

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