[Elecraft] KRX3 vs K3 rx sensitivity , one band only (30m)

Alan Bloom n1al at cds1.net
Thu Jul 2 23:24:19 EDT 2009


Are you sure the preamp state is the same for both receivers?  Remember
it is band-specific.  (I was caught by this once. :=)

Al N1AL


On Thu, 2009-07-02 at 20:21 -0700, Allan Taylor wrote:
> I finally emerged from a very busy spring and had a chance today to go
> over operation of the KRX3 in my K3.
>  Joe, KB8AP, came over and we played for most of the afternoon. Things
> are just peachy except that we
> noticed on 30m (only) that the KRX3 is consistently much less
> sensitive on 30m than the main RX. Other
> bands appear to be operating correctly. We tried all combinations of
> input antennas, etc. Filters are identical.
> All settings apparently identical.
> 
> In fact, this discrepancy won't likely be a major issue for me, but I
> would like to figure out what's up and get it
> fixed!
> 
> K3 S/N 740, factory updated with KRX3 in April. Identical filters in
> both. Running 3.19 firmware now but
> behavior identical to that of April (2.??).
> 
> Any ideas??
> 



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