Antenna switch 3:1 for HF 1kW
For my ham radio use I need to switch more antenna to one output cable. This project show one from more possibility how to do it. All three input are connected to ground if are not use and when is one from this three input connected to output then is connected thru relay. I used relays with two 8A contacts from Finder series 40.52, but is not important (I bought this for good price).
I still have few PCBs for sale - if you have interes, contact me please.
Few pictures for motivation
PCB
Top side
Bottom side
Side view
Antenna switch installed by 40m vertical
