[Elecraft] Sunspots!?!?

Dave Cole dave at nk7z.net
Wed Nov 25 19:44:24 EST 2020


One can always use the built in attenuator...

73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources

On 11/25/20 4:27 PM, Don Wilhelm wrote:
> Doug,
> 
> I lived through cycle 19 of the sunspot signals, and did not find any 
> problem with receiver overloading at that time.  We did not have the 
> Elecraft gear at that time, but what we had was not up to the 
> performance/protection that is typical for Elecraft.  Receivers have 
> gotten much better in dynamic range and lowered MDS in general and 
> Elecraft rates near the top of the heap.
> 
> The AGC in the K2 and K1 (and K3/K3S) can handle the strong signals with 
> no problem.  It is not much different than reports of performance during 
> a contest where there are strong signals and weaker signals.
> 
> If we have a strong sunspot cycle, the weak signals will get stronger 
> along with the more powerful stations.
> 
> 73,
> Don W3FPR
> 
> On 11/25/2020 6:52 PM, Douglas Hagerman via Elecraft wrote:
>> If, by some miracle, the sunspot count were to eventually jump up to a 
>> really high level, as was the case in around 2002, or even better in 
>> 1959, how would the various Elecraft receivers work? I’m specifically 
>> interested in the K1 and K2, but in general, is there a realistic 
>> problem with overloading of the front end? Or, assuming that you can 
>> hear signals from all over, will the selectivity, etc., be sufficient?
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