[Elecraft] K3 Filter Configurations and Explanations

[WA6L]

I can vouch that there is no reason to order both the 400 and 250 filters. 
When I first ordered my K3 on the phone, whomever I spoke with (and I can't
remember) convinced me that these two would be the best combination for CW
operation.

In reality, there is very little difference between the two filters and in
actual operation I don't see the need for the 250.  A better combination
would be the 1000 and 400.

When calling CQ, I like to keep the BW set to around 800 to capture those
signals that are not zero-beat.  Once in a QSO or contest exchange, I can
crank the BW down below 400 if needed.  At least with the way I operate, the
1000/400 combo makes more sense.

So, I plan to order the 1000 filter.  Anyone want a 250 filter at a good
discount?  Contact me offline.

73,

John, WA6L



Jim Miller-14 wrote:
> 
> Thanks for bringing up the filter topic -
> 
> This is one of my main questions now.  I finally ordered mine with no
> optional filters and plan on adding them to the order before ship BUT I do
> not know which will be the best for me.  I suppose the answer to that is
> that it will be different for everybody.  I do expect to add the second
> reciever board at some point, maybe not before initial ship.
> 
> Some sub-topics:
> 
> 1) Is there any point in ordering the 200, 250, 400 and 500? Probably not.
> Somebody explain how the filters are selected by the radio and recommend a
> couple of reasonable configurations please.  I want to be able to run 
> PSK,
> RTTY, CW and SSB and mainly I want to not have to deal with nearby
> signals,
> I want them GONE.
> 
> 2) a. Why would you order a 2.8 when you get a 2.7 with the radio?
>   b. Can you order the 2.8 instead of the standard 2.7 and receive "some"
> credit for the 2.7 you didn't want?
> 
> 3)  Will the 1.8 make the SSB hard to understand vs possibly the 2.1?  I
> almost ordered the 1.8 but wasn't sure so didn't order anything yet.
> 
> 4) What would be the best filter for RTTY?
> 
> 5) Which filter will be best for PSK?  A 6K filter or a 2.8 or narrower
> looking at just part of the band at a time?
> 
> Pick one (or all) and give me your thoughts,
> 
> THANKS,
> de Jim KG0KP (NewBee)
> 
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