[Elecraft] Why all those filters - K3

[Fred (FL)]

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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