What is Simplex versus Repeater mode in Ham and GMRS radio. Updated Apr 5, 2022.

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  • เผยแพร่เมื่อ 24 ธ.ค. 2024

ความคิดเห็น • 42

  • @phil1551
    @phil1551 ปีที่แล้ว +2

    This is a well made video! Simple and to the point. The only change I would make is the color of the arrows denoting duplex transmissions, so that the color denotes the shift in transmission frequencies. For beginners this is an excellent video. And the graphics are nice too! Here are your thumbs up… 👍👍👍👍👍

    • @Raymazon
      @Raymazon ปีที่แล้ว +1

      Thank you. Excellent idea. I will do have to do that in another video explaining repeaters.
      Thank you for the suggestion.

  • @summerwindcharters1326
    @summerwindcharters1326 10 หลายเดือนก่อน +2

    Easy for even a newbie like me to understand. Thanks👍

    • @raymazonhamradio
      @raymazonhamradio  10 หลายเดือนก่อน +1

      Thank you. That great to hear!

  • @badd.syntaxx
    @badd.syntaxx ปีที่แล้ว +2

    thanks for the effort in explaining simplex and duplex

  • @dougofford6567
    @dougofford6567 11 หลายเดือนก่อน +2

    Thx. Great explanation

  • @JamesSmith-hs1ch
    @JamesSmith-hs1ch ปีที่แล้ว +1

    Excellent explanation! Great video!

  • @fox1actual
    @fox1actual ปีที่แล้ว +1

    Thanks. Simple and informative. 👍

  • @VictorOmebije
    @VictorOmebije 2 ปีที่แล้ว +1

    Fantastic explanation

  • @pradhanrajesh5113
    @pradhanrajesh5113 2 ปีที่แล้ว +2

    thank you for good information .

  • @ReneCesena-d2t
    @ReneCesena-d2t ปีที่แล้ว

    Good Job ❤

  • @ksasb6994
    @ksasb6994 ปีที่แล้ว +1

    Excellent

    • @raysiposs9822
      @raysiposs9822 ปีที่แล้ว

      Thank you!! Glad it helped.

  • @charleslamont2963
    @charleslamont2963 8 หลายเดือนก่อน +1

    thank you.

  • @damian3182
    @damian3182 11 หลายเดือนก่อน +1

    I love this! What happens if I'm in Los Angeles and I want to transmit to riverside. Would I need to find a repeater that is linked to that mountain?

    • @raysiposs9822
      @raysiposs9822 11 หลายเดือนก่อน +1

      Hi Damian. Yes, a repeater would have to be used to reach that distance. (Unless you happen to be physically located atop a mountain.) I was on a hike up on a 1,000 foot hill in San Diego yesterday and was able to reach the Catalina Island repeater (75 miles away) on a hand held. Elevation is key. In the real world though, yes, a repeater will retransmit your signal great distance. Also, some repeater systems, like the PAPA system in Southern California, have a network of linked repeaters that covers half the state. There are some open repeaters on both 2 meters and 440 that should cover that area you are asking about.

    • @damian3182
      @damian3182 11 หลายเดือนก่อน

      @raysiposs9822 I and the receiver would only need to connect to the same repeater or each other on a linked repeater to hear one another? It's not like I need to program two repeaters to chain the connection?

    • @raysiposs9822
      @raysiposs9822 11 หลายเดือนก่อน +1

      @@damian3182 Correct. You are only communicating with a repeater on a mountain. The repeater does the retransmission or relay for you. The person you are talking to on the other end is doing the same thing-talking to the repeater. You hear each other by going through that repeater relay. So just on repeater will do that. Networked or linked repeaters will interconnect, but that is done mountain top to mountain top. I just posted another video on my other channel that talks a little further about the frequencies used. th-cam.com/video/hPQnWTZIGBo/w-d-xo.html

    • @damian3182
      @damian3182 11 หลายเดือนก่อน

      @@raysiposs9822 awesome! I'll check it out.

  • @abdel-salam2440
    @abdel-salam2440 ปีที่แล้ว

    Nice

  • @KeithMorrisonSr
    @KeithMorrisonSr 7 หลายเดือนก่อน +2

    This concept all applies to GMRS radio

  • @ahmadkaysoonpoh359
    @ahmadkaysoonpoh359 ปีที่แล้ว

    Excellent job

  • @itrstt66
    @itrstt66 6 หลายเดือนก่อน +1

    can you have radio to radio duplex?

    • @raymazonhamradio
      @raymazonhamradio  3 หลายเดือนก่อน

      I just saw this question. Sorry for delay. You technically can, if the radio is built to handle a modification to do it, like some Motorola commercial type radios. Those commercial grade radios are typically the best way to do it. Baofeng and most radios can't do true duplex like that.

  • @nindajuka8427
    @nindajuka8427 8 หลายเดือนก่อน

    does repeater duplex we can hear the feedback on our voice? or just pass through like direct

    • @raymazonhamradio
      @raymazonhamradio  8 หลายเดือนก่อน

      It just relays, or passes-through the voice in real time. If you want a playback of your voice, the repeater would have to have a voice-recorder capability in the repeater's controller hardware itself (which some can do), but it is not commonly offered on most analog repeaters. DMR Digital Mobile Radio repeaters offer that option via the Brandmeister server, but that's another topic for digital radios.

    • @nindajuka8427
      @nindajuka8427 8 หลายเดือนก่อน

      @@raymazonhamradio thanks

  • @davidsteckley8846
    @davidsteckley8846 10 หลายเดือนก่อน

    How does it transmit in different frequencies if both radios are on the same frequency

    • @raymazonhamradio
      @raymazonhamradio  10 หลายเดือนก่อน

      See if this video explains it for you.
      th-cam.com/video/hPQnWTZIGBo/w-d-xo.htmlsi=-l8GV_U2hqHo0iXH

    • @davidsteckley8846
      @davidsteckley8846 10 หลายเดือนก่อน

      @@raymazonhamradio thank you

    • @raymazonhamradio
      @raymazonhamradio  10 หลายเดือนก่อน

      @@davidsteckley8846 You are welcome!

    • @davidsteckley8846
      @davidsteckley8846 10 หลายเดือนก่อน

      @@raymazonhamradio I’m studying for an exam on Monday and I’m learning that this stuff is far more complicated than I thought. I’ve been given things to study, and those are the things I’m trying to learn. This puts it in a little more perspective. Technically I should probably go to school, but for me this would be a promotion under a training and development (TND) for a training position. That’s why I applied for it

    • @raymazonhamradio
      @raymazonhamradio  10 หลายเดือนก่อน +1

      @@davidsteckley8846 That's good to hear. It will be worth it for you in the end. It's a very useful thing to learn, and you will have fun with it too. Preparedness is getting popular, and radio communications is an important tool. Even for people that go hiking or camping, it can easily save your life. We forget the simple challenges we all went through while learning radio communications back in our own beginning. I've considered the idea of putting a course together, so the feedback is appreciated. Good luck on Monday.

  • @johnraulcorminal731
    @johnraulcorminal731 2 ปีที่แล้ว

    sir how to send a call to a radio without repeater to 2 kilometers far

    • @raysiposs9822
      @raysiposs9822 2 ปีที่แล้ว

      It will depend on how many objects are in the path, in the way. If you were on a building rooftop, and able to see over other buildings, you could perhaps reach that distance. If you can see it, you can talk to it. Gaining elevation almost always helps greatly. This is why you will often see radio communication antennas located high on a rooftop.

  • @ironsurvival7011
    @ironsurvival7011 ปีที่แล้ว

    Santiago Peak is a great repeater.
    KK6KTZ

  • @HansLindstrom-fq4yu
    @HansLindstrom-fq4yu 8 หลายเดือนก่อน

    Well made video but you got it wrong. Sadly theres a lot of comments that says tanks for the explanation. en.m.wikipedia.org/wiki/Duplex_(telecommunications)

    • @raymazonhamradio
      @raymazonhamradio  8 หลายเดือนก่อน

      Thank you for the feedback. In order to correct my error, can you please elaborate? Duplex has several meanings and I want to make it better understood.
      A repeater is usually a duplex repeater, meaning they can hear and talk at the same time, though there can be “store and forward” repeaters which are very rare and almost none existent.
      Many commercial radios have a setting on the control head labeled as “duplex” as the mode for the “repeater” mode of transmission, vs simplex operation for talk-around. They just use the nomenclature of “duplex” rather than “repeater”.
      Then there are radios such as Motorola mobile radios that have the internal circuitry to allow it to operate in full duplex mode in the car where they can transmit and receive at the same time, which allows the radio operator to receive themselves as they transmit coming back from the repeater, or the network of repeaters.
      Commercial grade Motorola mobile radios are heavily used in repeaters because of this highly sought after ability of being able to easily duplex, and their ability to withstand continuous transmit duty cycles.
      In a mobile environment, on a fully duplexed radio, if the volume is turned up too loud, you get into an echo or feedback condition when hearing yourself returning from the repeater. The advantage of running mobile duplex while on a network is that if another station on a full-duplex linked repeater keys up elsewhere on the system, then the first operator will hear the interrupting station comment in real time.
      Most linked repeater networks are full-duplexed networks, but not all are. Full duplex has some advantages for the control operator of the network while admin level controlling the system.
      So it depends on which definition of duplex is used; the one that some radio manufacturers use on their radio product control function labels, or the transmission mode.
      Again, if I misstated, let’s get it corrected. I was referring to the control function label found on many radios when using the term.
      Thank you for the input.