[Elecraft] 2.1 kHz filter - K3

[Bill W4ZV]

Michael M. Raskin wrote:
> 
> I have the 2.8 kHz filter in the main receiver and want to supplement that 
> with either the 2.1 kHz or 1.8 kHz filter.  A friend who has the 1.8
> thought 
> is was too narrow.  What are you guys using?  Anyone have all three?
> 

You friend is wrong.  His experience is probably due to not properly
adjusting SHIFT or HI CUT for best intelligibility.  When adjusted
correctly, Fc should be ~1000 Hz and the 1.8k is quite readable.  In fact
some are even using Inrad's 1.5k.  These narrowband filters are intended for
communications in extreme QRM (e.g. contests or big DX pileups).  You don't
want or need any narrower filters than the stock 2.7k/2.8k for casual
operation.

http://n1eu.com/K3/K3_notes.htm  (scroll down to SHIFT setting)

73,  Bill
-- 
View this message in context: http://elecraft.365791.n2.nabble.com/2-1-kHz-filter-K3-tp5024771p5024794.html
Sent from the Elecraft mailing list archive at Nabble.com.