[Elecraft] Why all those filters - K3

[Don Ehrlich]

I ordered mine with no crystal filters.  They can always be installed later 
and by then I will have learned enough to know what I really want or need.
And ... I know I am not wasting my money with a hasty decision.

Remember, the DSP will do a good job of filtering without any crystal 
filters.  As I understand it the radio will work well with none of the 
optional crystal filters installed.  By the time I get to that point I am 
sure some consensus will have formed as to the best way to approach filter 
choice for various operating preferences.

Don K7FJ


> Looking at the new K3 order form - one is faced
> with a potential order selection of some 8 or
> more filters.  And some others coming on the
> scene, have been mentioned. Many are called roofing
> filters.
>
> I'm hoping Elecraft will explain the use, benefit
> and potential shortcoming of one's K3 - if they do
> or do not order any or all of these filters.
>
> For example, if I just want to have a slightly
> better narrow CW and narrow SSB filter selectability
> - which of all these - would be natural to order?  I'm
> surprised of the need to order all of these filters in
> a 2007 DSP-based radio.  For example, for Icom's
> IC-7000 - there are no optional filters to
> buy.
>
> Filters have gotten to be big ticket items, for rigs
> that could need them - ala $135 for a single SSB
> filter for a IC-703.  $80 bucks a wack, for a
> IC-706MKIIG.   And again - none are listed
> in the options list for a IC-7000.  How do they
> perform the roofing function, and selectability
> function?
>
> Fred, N3CSY
> .....learning, learning 2007
>
>
>
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