Three Xmitters, One Antenna - How to?

I have three dual band rigs that I'd like to hook up to the same dual band vertical. I've been given various advice - that I can reverse a triple coax switch, thst doing so won't provide isolation and I'll hurt my rigs, that I should get the MFJ 1700B or 1700C, or that I should get a triplexer. I'll only be using one radio at a time, I'm just to lazy to reach back and disconnect and reconnect coax every time I want to change radios. So... does anyone have a definitive answer and, even better, product recommendations? Thanks from KE2SJ...

 

just get a alpha delta 4 pos switch. 4 in 1 out. problem solved

 

As W4RS already implied, the isolation of the Alpha-Delta coax switches is pretty good. I've been using one for about 20 years to switch between a 100 Watt HF radio, a 5 Watt QRP radio and an antenna analyzer. There have been zero issues.

However, I would NOT do that with any other coax switch, without verifying directly with the manufacturer what the isolation is.

Another option is a "patch panel". You still have to move connectors around, but with a patch panel you can mount it where it's a lot more convenient, i.e. facing front. Another step beyond that, is to get some push-on "quick connect" connectors or adapters.

 

https://www.dxengineering.com/parts...e22ah0Z3blCLqDosYALFt4K66MVJ-cAxoCqykQAvD_BwE

 

"RF flows both ways".

Alpha Delta switches are tops!

 

Good quality Coax switch will likely provide good isolation.

 

Dual band? As in VHF/UHF? I'd venture to say that coax switches will prove less than satisfactory at those frequencies.

A patch panel as K7JEM suggested is easy. Use BNC connectors, one for each radio and one for the antenna. BNC are bayonet type and connect/disconnect quickly, and are good at those frequencies. The panel is super easy to make.

 

Unfortunately, my feed line and all my jumpers all have PL-259s and I've never had success with putting on BNCs without shorting them. Would folks recommend the patch board over the Alpha Delta for 2m/70cm? I suppose I could just use SO-239s though less convenient than BNCs. Anyone have schematics for one if the Alpha Deltas try won't work at high frequencies? Regrettably, a second or third antenna isn't an option. Thanks...

 

Would these work https://cometantenna.com/amateur-radio/triplexers/

 

Alpha Delta also makes switches with SO-239 connectors. Good to 500MHz, has 50+ dB of isolation:

https://www.dxengineering.com/parts/alf-delta-4b