I left it there because I am using a pan adapter to find stations. so
I don't need to see anything wider on MMTTY display. but before I
had it I would toggle between wide and narrow filter width as needed
by pressing [hold] the width control knob
David Moes
VE3DVY
--- Original message ---
Subject: Re: [Elecraft] K3: best roofing filter on RTTY
From: Ted Edwards W3TB <[email protected]>
To: <[email protected]>
Cc: Elecraft Reflector <[email protected]>
Date: Monday, 16/02/2015 2:01 PM
I also like the 400 Hz filter, but when tuning around like in this
weekend's CQ WPX RTTY then I went much wider.
With that width came lots of noise. What is a good idea on that?
And thanks ahead of time.
On Mon, Feb 16, 2015 at 12:47 PM, <[email protected]> wrote:
David Moes
VE3DVY
Since I find that the 8 pole 250 Hz filter is really a bit wider I
tell my K3 in filter setups its 300hz It works fine for me this way
including on RTTY
During the WPXRTTY this weekend I had good luck copying weak signals
right beside a power house signal using the 250hz filter.
--- Original message ---
Subject: Re: [Elecraft] K3: best roofing filter on RTTY
From: Jim's Desktop <[email protected]>
To: <[email protected]>
Date: Monday, 16/02/2015 9:49 AM
The narrowest filter I have in both receivers is the 400 Hz one. I
borrowed a K3 that had a 250 Hz filter in it once and tried it on
RTTY.
It works, but it's right on the margin of being too narrow. If
someone
is using one of the older Packet TNC's that have RTTY mode in them
(they
used 200 Hz shift instead of 170 and there are still a lot of them out
there) it's really hard to get them tuned in with a 250 Hz filter,
especially in weak signal/selective QSB situations. The 400 Hz filter
doesn't seem to have that limitation though it does let slightly more
noise in (easily handled with the DSP filters anyway.
Jim - W0EB
On 2/15/2015 11:35 PM, David Cole wrote:
Hi,
I ordered and use the 400 for RTTY, I suspect the 250 is a bit to
narrow.
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--
73 de Ted Edwards, W3TB and GØPWW
and thinking about operating CW:
"Do today what others won't,
so you can do tomorrow what others can't."
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