Antenna Switch

[RubberDuck01]

Dear all,

I am looking for an antenna switch but I dont know the correct name ^^
may be x-antenna-switch is a good name for it

I want to connect
TRX 1 to Antenna 1 (black lines)
TRX 2 to Antenna 2 (black lines)

if I "turn" the switch
TRX 1 to Antenna 2 (orange lines)
TRX 2 to Antenna 1 (orange lines)

Greetings from Germany

 

[W5LZ]

A simple way to do that is by using a DPDT (double pole, double throw) switch. That can do the 'exchanging' of two antennas. The problem with a simple switch like that is that it would very seldom be of the right impedance. That isn't all that important, but it is important. Another thing, you have to do the 'throwing', it wouldn't be a 'push the button' thingy. Remember seeing those old 'knife' switches? That's not an uncommon way to do it.
I'm not aware of any such antenna switches on the market...
- 'Doc

 

[Captain Kilowatt]

I can't think of any switches that will do what you want. You can connect two switches together to connect one of two radios to one of two switches but not have BOTH radios connected to either of two antennas at the same time.

 

[vkrules]

2 x 2 position switches back to back or one of those expensive 6 ant by 2 input lobs come to mind, don't think you will find a single sw that will do the job.

 

[RatsoW8]

MFJ makes the only switch that I know of that supports multiple transmitters and antennas.


http://www.universal-radio.com/catalog/switch/0212.html

 

[Captain Kilowatt]

MFJ makes the only switch that I know of that supports multiple transmitters and antennas.


MFJ-1700C Antenna Switch MFJ1700

That switch came to mind as I actually have the 1700B. It functions the same but looks a bit different. Neither it nor the one you linked too will do what he wants. Either switch allows only one radio at a time to be connected to an antenna. You can select any one radio to go to any one antenna however the unselected radio will not be connected to an antenna.

 

[Moleculo]

W2IHY has a couple of different very nice switches to choose from, as well:

Coax Switches

 

[Captain Kilowatt]

W2IHY has a couple of different very nice switches to choose from, as well:

Coax Switches

That's what is needed is a switch matrix and not a simple switch. I see W2IHY is rather proud of them at those prices.

 

[RubberDuck01]

thx for the answers, it looks that my problem is a little bit complicated ^^

In the worst case I have to build my own switch with 2 HF relais CX 120 P (CX 120 A), cost around 35 EUR / each

or the better one the CX 600 N but this is very expensive (94 EUR / each)

 

[Once Bitten]

I think the MFJ-1703 is what you are looking for?
MFJ Enterprises Inc.

 

[Captain Kilowatt]

I think the MFJ-1703 is what you are looking for?
MFJ Enterprises Inc.

BINGO! That's EXACTLY what is needed. I didn't realize MFJ (of all places) made a cross-over switch. Good find!

 

[RubberDuck01]

bingo
excelent
many thx

EDIT: ohh nooo, its only to 30 MHz, I need it for 70 cm