• You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
  • Click here to find out how to win free radios from Retevis!

Two radios, one antenna, I think?

TM86

Supporting Member
I Support WorldwideDX.com!
Jul 6, 2014
1,884
2,962
273
Payson, AZ
Just ran across this video on UTuber, and while I can't speak the language, it looks like this guy's rigged up a couple of relays to automatically switch between two radios so that they can share an antenna, as long as only one is transmitting at a time.



At least, that's what I think is happening. Kind of a neat idea, if that's what he's doing, but I wouldn't risk the front end of two radios getting bursts of the other's transmitted RF while waiting for the relays to kick in.
 

There was a guy on Fleabay that made a big splitter with relays that could do about 6 radios. By the time my shack got enough radios in it, he had quit making them. I thought it would be great to test the receive of multiple radios at the same time. He replied that every time you connect another radio, it drops the signal down for all the radios. He went on to say that the relays don't switch fast enough, and eventually you will have problems.
 
I admit I do not have the level of technical skill, I had always assumed that most guys that run that type of setup make the equipment his self, and they had hard switches to select the transmitting radio, for the same reason stated that the relay switching approach would not work fast enough.
 
  • Like
Reactions: TM86

dxChat
Help Users
  • No one is chatting at the moment.
  • dxBot:
    Greg T has left the room.
  • @ BJ radionut:
    EVAN/Crawdad :love: ...runna pile-up on 6m SSB(y) W4AXW in the air
    +1
  • @ Crawdad:
    One of the few times my tiny station gets heard on 6m!:D
  • @ Galanary:
    anyone out here familiar with the Icom IC-7300 mods