What is a antenna Multicoupler and what it does and why you need one

[@FStewartIII]

I am looking to purchase one of style multicoupler and use it for scanners and a SDR Play RPS1 (not purchased yet) I just spoke to them and I am looking at the MC204 (10 MHz to 1 GHz). I could get by with the non amplified but wanted to see what your receives in your SDR possibly as compared to the amplified version?

[@14MN427]

Hello and thank you for your video. I see that you have the MCA104M model which covers the frequencies from 500kHz to 50Mhz. I have the MCA204M model which covers frequencies from 25Mhz to 1 Ghz and when I plug it in I lose almost all my VHF and UHF reception. My question is, did I get the wrong model? I wanted my scanner and SDR key not to be disturbed by my HF emissions. Sincerely Niko

[@rayerdinc2441]

Really interested in these, thank you Gilles. Couple of questions please. If you have an ATU and QRM eliminator, would these be connected at the input end or would it be at the output, which means only one would have it?

[@madmax2069]

They also have a model which has protection if you have a transmit antenna close to the receive antenna to keep from cooking the front end of the receivers.

[@robcolumbus5330]

So you can’t transmit with any of the radios connected?

[@OfficialSWLchannel]

no, this is a receive only device

[@ComblessMan]

Is there such a device that allows for multiple antennas to connect to one receiver? Edit: I do have an antenna switch, Delta, but I was wondering if there were a switchless device.

[@OfficialSWLchannel]

Good question

[@W8RIT1]

I would hazard a guess that you could just use the multicoupler "reversed", I believe that they electrically isolate the multicoupler portion (like the 4 ports), so that way when you add multiple resistances posed by the antenna and feedline, to not affect the overall resistance/impedance as you would normally do when putting multiple resistors in parallel. The muliticoupler always "presents" to the 1 port only the 1 "resistance" at a time, even though all are being simultaneously used. I'd really like to see one, and have the necessary funds, for a multicoupler that would serve multiple transceivers to multiple antennas.

[@davidsradioroom9678]

Glad you got it.

[@CanadianPrairiesShortwave]

thank you. will buy one

[@Capitaine.Albator]

Merci du partage!

[@davidwhite2011]

$185 Hope its worth it.