[Elecraft] K3: Receive Ant Question

[Greg Miller]

I use this on the RX antenna:

http://www.arraysolutions.com/Products/as_rxfep.htm

...works great.

-Greg NY6C

On Nov 13, 2013, at 3:16 PM, Don Wilhelm <w3fpr at embarqmail.com> wrote:

> 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.
>> 
>> 
> 
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