Hi Jim,
I think this is the thread you are looking for:
http://n2.nabble.com/KRX3-Overload-Protection-on-160M-td3814157.html#a3814157
Hope this helps.
73
Tony Fegan VE3QF
Jim Harris wrote:
> Hi Folks,
>
> I'm currently selling an off-shore rig with the hopes of acquiring a
> second K3 for SO2R, primarily for RTTY contesting. I believe I've
> seen somewhere in the not to distant past that is was said the K3
> receive front end can withstand 1-2 watts without damage. I've spent
> the last hour reviewing the email archive and can find no reference
> to that. Can anyone confirm or deny my remembrance? (Or, is it all
> just wishful thinking?) Is there anyone on the reflector that is
> operating a K3 SO2R station without the thousand or so dollars of
> band pass filters needed to protect the radio's front end?
>
> Second part of the question is.....if possible to not damage the
> front end, what is the possibility of desensing or causing blocking
> or noise that would interfere with reception on one receiver when
> transmitting on the other radio. I'm sure that is highly dependent
> on band(s) and separation of frequencies within the band. I'll fully
> aware of the K3's ability to completely block signals a few kilohertz
> away but when RTTY contesting I do seem to notice there may be some
> desensing or AGC action from these signals even though they are not
> heard or processed by MMTTY.
>
> Comments very much appreciated.
>
> CU in the Colorado QSO Party Sept 4th, 2010.
>
> 73, Jim, W0EM
>
>
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