[Elecraft] [K1] How about a KFL1-4 filter board for 17m/15m/12m/10m?

[Mike Morrow]

Curt wrote:

> Am planning build a KFL1-2 for 12 & 10M using some posts from late
> 2005 / early 2006 as guide.  Would appreciate hearing experiences
> of anyone else who has tried putting a K1 on 12 or 10.

I don't have any recommendations for this, but I would like to see a final
K1 product be a KFL1-4 four-band filter board for 17m, 15m, 12m, and 10m.
These bands are certainly possible on a KFL1-4, since 17m/15m and 12m/10m
have the appropriate relationships to easily operate below the rolloff of the
basic elliptical filter design used in the KFL1-4.  Such a board, plus the
necessary K1 circuit modifications for adequate performance up to 10m, would
be a real plus as the sunspot cycle climbs for the next five years.

I don't really expect to see this ever offered...the last K1-specific product
was introduced more than ten years ago.  But such a product would seem to be
relatively easy for Elecraft to produce, and a natural winner as these bands
roar back.  The KX1 can never cover **any** of these fantastic QRP bands...but
the K1 could cover all four on one filter board.  A backpack trip with the K1
and an easily erected 26-foot dipole segmented to cover all four bands would
be a real joy, at least until it got too dark.

It's something I'd buy even if I had a KX3, and especially if I had a KX1 (but
I'd need a K1 and the new board).  I can wish.

73,
Mike / KK5F