[Elecraft] K3 - Purchase Recommendations??

[Hector Padron]

My K3 is 15 months old,when I order it I wanted them to install the 2.1 Khz roofer for narrower BW to be used on dxing and contesting but with time I realized then that even been a more pleasent audio it was useless to reject QRM from stations at 2Khz or less close to my working freq so I decided to sell it and instead I purchased the INRAD 8 poles filter for 1.8Khz BW and now even the quality is not so pleasent but still understandable,I can easily reject anything that be very close to my freq,its a MUST to have the 1.8Khz,what I do when its engaged is to move the SHIFT to 1.0 and doing it the audio clarity is almost perfect and not so tiring to my ears.So I strongly recomend to install the 1.8Khz instead of the 2.1 that for me was useless.
 
AD4C
 


"For a refined ham it is compulsory to own a k3"

--- On Fri, 3/5/10, George A. Thornton <gthornton at thorntonmostullaw.com> wrote:


From: George A. Thornton <gthornton at thorntonmostullaw.com>
Subject: Re: [Elecraft] K3 - Purchase Recommendations??
To: Elecraft at mailman.qth.net
Date: Friday, March 5, 2010, 9:20 PM


I am relatively new to the K3 and I am not a contester.  I did want to
give my reactions to the 1.8 filter as a second SSB filter.  I have one
and I have been listening through it.



The way the filters work, the K3 does not kick in the filter until you
narrow the bandwidth to that filter's size.  So, if you get the 1.8 all
bandwidths between 1.9 and 2.7 or 8 will run off of the standard 2.7 or
2.8 filter, and the 1.8 sits idle.



What I have observed is the narrower the filter the weirder and more
unnatural it sounds in SSB.  At 1.8 you have filtered out a substantial
part of the normal SSB signal.  What left can be understood but it is
not pleasant or comfortable to the ear.  You may find the filter very
helpful for picking out a weak signal under difficult conditions, but
you would not want to use that for very long, and not for casual talk.



I would suspect the 2.1 filter would be more natural sounding and you
might find that more pleasant to use.  



There has been some talk  of a variable frequency SSB filter.  It might
make sense to wait for that to come out and see what people think of it.



Keep in mind that you can't transmit on AM , FM or ESSB unless you have
one or both of the wider filters.



Finally, I think the Xverter/IO  module is really worth getting.  One of
the fun things to do is to use a computer (or the upcoming P3) for a
spectrum scope.  There are a lot of neat things you can do with that,
and you absolutely need the IF out for that to work.



I will finally offer my observation that the K3 is one fine radio and
you will not regret the decision to get one.





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