Discussion in 'The Projects Forum' started by krupas, Oct 12, 2010.
Single pole 4 through RF switch circuit design. Need detailed description for understanding
Do you want to make it with discrete components?
What is the frequency range?
Usually done with a very large rotary switch in a metal box that has a lot of shielding plates inside to keep cross interference down.
As Bertus asked - what frequency, power level (if used on a transmitter) and are you wanting it electronically switched or just what us old ham radio operators used to use?
I interpret SP4T as "Single pole, four throw"
Rotary switches are the typical way to go with either make-before-break or break-before-make configuration, but I've also seen multi-throw slide switches.