Phil,
The K3 ANT1 and ANT2 connections are not of concern, they are protected
by the T/R circuits in the K3.
The AUX ant is protected by a COR (Carrier Operated Relay) that will
activate if there is too much RF being brought in by the AUX antenna.
While it should protect the K3 (and KRX3) from damage, you will hear the
COR clicking as you transmit.
If you do hear such relay clicking, the "cure" is to move the RX antenna
further out of the field of the TX antenna, or provide some form of
external 'protection' such as shorting the RX antenna input during TX or
alternate means of disconnecting the RX antenna during RX.
73,
Don W3FPR
On 1/27/2015 4:41 PM, Phil Anderson wrote:
Perhaps you could clarify protection on RX inputs. I have the KRX3 and
run the internal 100 watt amp.
Sometimes I share the same antenna with TX, ANT 1 or ANT2. I assumed
there that the RX is protected.
Sometimes I use the AUX antenna for diversity receive. Is that input
not protected? When does it need to be?
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