I added a 1 kHz filter to my "Field Day" K3 for the same reason, and I really like it. When calling CQ on CW during Field Day a lot of folks who answer are using radios they aren't very familiar with and as a result they aren't zero beat very accurately when they call. I found that I was missing stations that were calling on the skirts of my 400 Hz filter, so I added a 1 kHz filter. When I tune the band to answer CQs I still prefer listen through the 400 Hz filter.

73,

Bill - NA5DX


On 7/25/2017 8:07 PM, Merv Schweigert via Elecraft wrote:
Same here, perfect for contesting on CW, I like to be able to hear almost
up to a KC up the band to pick up those who cannot zero beat,
I have 400 and 200 filters also, but only use them for extreme conditions,
Merv K9FD/KH6

Hello John,

It's used for CW. I have a pair of them (main and sub rx) and find that CW sounds more pleasing through this filter. I operate about 90% CW and I use
this filter most of the time, engaging narrower filters only when it
becomes really necessary.

73,

Dale -- WA8SRA

On Tue, Jul 25, 2017 at 3:49 PM, j...@kk9a.com <j...@kk9a.com> wrote:

What is this used for?

John KK9A

From: Ralph Matheny K8RYU
Mon Jul 24 16:30:29 EDT 2017


Anybody got a 1 Khz filter for K3 they wanna sell??

de K8RYU

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