[Elecraft] Re: Aux rcv protection, more

wayne burdick n6kr at elecraft.com
Thu Aug 14 03:28:29 EDT 2008


Charles Harpole wrote:

>
> So if the COR activates, it provides very much more
> protection, yes or no???

Yes.

The relay has 1-amp contacts, which should handle any reasonable amount 
of power induced into the sub receiver's antenna. (It's rated the same 
as the relay we use on the KXV3's RX ANT IN jack.) I wouldn't put a KW 
into a transmit antenna that's in the near field of the receiving 
antenna, or is oriented so that it can couple more than a few watts 
into it.

> It activates automatically, yes?

Yes.

>
> In ordinary SSB chat, the COR delay u mention will be a real
> problem or a minor problem?

There's a possibility that other stations might hear the effect if the 
COR relay is rapidly cutting in and out, in any operating mode. If you 
hear it doing this,  you should take some action to prevent it (switch 
the sub RX to the shared RF path, or reduce power, or move the 
antenna).

There may also be a warning flashed on the VFO B display when the COR 
is being activated. That's on the firmware list.

73,
Wayne
N6KR



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