[Elecraft] Thoughts and question
Vic Rosenthal
[email protected]
Sat Mar 20 11:01:12 2004
gwlillie wrote:
> I am very disappointed that a improvement in cystal
> filters wasn't attemped. In only my opinion I think this is the only
> weak area to the K2 and keeps it from being ever greater.
As a CW operator, I complained a lot about the filters when I first
built my rig. However after changing the grounding from the top to the
sides, replacing the crystals with the newer, more accurately spec'd
ones, and rewinding the input transformer to the latest specs, I am
happy. It is true that the filters do not have skirts as sharp as my
standard of comparison, which is a pair of cascaded 400 Hz INRAD
filters, but in terms of practical QRM fighting ability they are totally
adequate -- and in fact, sometimes the slightly wider skirts are an
advantage, as in a contest situation when you need to hear callers
slightly off frequency.
I think sometimes we lose sight of the real-world forest when we look
too closely at the technical trees.
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco