[Elecraft] K3: Receive Ant Question

[Don Wilhelm]

Steve,

The RX antenna input is protected by a Carrier Operated Relay. Other 
than that, there is no relay to disconnect the RX input.
If your TX antenna is sufficiently separated from the RX antenna, there 
is no problem.
How much is 'significant' is often a question, and the answer depends on 
your particular antenna installation.
If you hear the COR relay operating, yours is not providing sufficient 
isolation and you should look into an external device (likely a relay 
will do) to disconnect the RX antenna during transmit.

73,
Don W3FPR

On 11/13/2013 4:20 PM, Steve, K4FJ wrote:
> Am I correct in assuming that the Rec Ant input is disconnected from the main receiver input upon transmit by way of a relay?  If so, can I further assume that connecting a beverage, or other receive antenna, to the Receive Ant input will cause no harm to the main receiver upon transmit?  In other words, is a relay enough protection?
>
> I ask because I would like to rule out needing an external protection device when using a beverage antenna.  I run full legal power.
>
>