[Antennas] Antenna Switching Question For a Friend

Wed Jun 5 07:50:39 EDT 2024

Most of the old transmitters used a "Dow-Key" brand coaxial relay 
externally. These were engaged from a relay in the transmitter usually 
from a jack on the back of the transmitter. They also had another set of 
contacts on the coaxial relay to ground the mute jack of the receiver, 
if the transmitter didn't have a mute output of its own.
An example
https://www.rfparts.com/relays/relays-coaxrelays/w128x-15-p.html
On 6/4/2024 6:59 PM, k5jwkgary at gmail.com wrote:
> Proper operation of a boat anchor transmitter and receiver? Assume the same
> antenna is used for xmt and receive.
>>>> Does the receiver or the transmitter control the switching relay(s) when
> switching from transmit to receive or vice ver.

-- 
73 de Mike, W1NR
THAT was the equation. EXISTENCE!... SURVIVAL... must cancel out... 
programming!
- Ruk -