Home |
Search |
Today's Posts |
#1
![]() |
|||
|
|||
![]()
I'm looking for a source for small inexpensive 12VDC relays which are
usable for cold-switching ~200W of RF at frequencies up to 30 Mhz. The relays would be used to remotely select several single-band antenna tuners and several end-fed vertical wire antennas strung up into some tall trees. The "tuners" would be link-coupled tapped parallel tank ciruits, one tuner per band. There would be two relays needed per band, one to switch the 50 ohm coax from the shack to the specific tuner and the other at the output end of the tuner to select the particular wire. At the input ends of the tuners the RF voltage would be around 200V @ 2 amps. At the output ends of the tuners (depending on the feedpoint impedance) the RF voltage could go into the 2kV range at very low currents. So basically I need some sort of relays which can handle 2kV of HF RF at 2 amps. Single pole NO non-latching reed switches would do the job. I know I can use surplus vacuum relays but at $35-40 a pop that ain't gonna happen. Any and all suggestions will be appreciated. w3rv |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
Tx Source Impedance & Load Reflections | Antenna | |||
Is it possible to have a 1:1 SWR? | Antenna | |||
Drake Tr-7 Relay Source? | Swap | |||
Radio Canada International : British Columbia Relay Station ... view the computations! | Shortwave | |||
Address the issues, Skippy! Repost #3 | CB |