[TowerTalk] coax switch recommendtion

[Jim Brown]

On 1/19/2026 2:02 PM, wa9wsj via TowerTalk wrote:
> I'm helping out a friend and he needs a few (3 or 4), A/B coax switches. They will be used for the VHF and UHF bands.

I used Alpha Delta 1x2 and 1x4 switches to switch 2M/440 FM rigs and 
antennas for years. Not a small signal application -- the use was for a 
shack FM rig to work repeaters. I've not measured them, but would expect 
an impedance bump that is insignificant up to 10M, but could be an issue 
at high VHF and UHF. I've also used them extensively at HF, both at home 
and in portable setups.

For small signal work at VHF and above, I'd look for relays designed for 
that use. RF Parts and MaxGain Systems are two vendors who sell a lot of 
good quality used stuff like this. A google search on "coax relays" will 
find them and a lot more.

73, Jim K9YC