[Elecraft] 1.8 or 2.1 kc Filter

[Craig]

I find that the 1.8khz filter is very useful for weak signal work on SSB. My QTH is noise free and i can routinely copy weak stations in the noise floor that cannot be heard on a wider bandwidth filters. 

I find the same with  the K3 and  the 2.1khz filter especially when narrowed down to 1.8khz DSP bandwidth. Weak signals just seem to pop out of the background.

The only issue that i am having right now, which i am still trying to resolve with my K3 is that the  IF shift appears to be off center frequency. I routinely have to shift the FC  for maximum readability.  I  do have   the filter FC offsets stored  in the filter memories for now on my K3. 

I have the 1.8khz filter on order and will compare it to the 2.1khz filter shortly. I dont have any issues with copying SSB in  the 1.8khz filter bandwidth,  i find that even a  1.5khz filter like that on the K2 to be useful. I personally believe that you do compromise your SSB stations weak signal capabilities by not having narrow SSB filters. 

Wide filter bandwidths can becoming addictive and there is no doubt that it is pleasing to your ears. However if you a Dx'er or contester thats not what the games about.

73
Craig
VK3HE


--- On Fri, 7/11/08, Tom Childers, N5GE <n5ge at n5ge.com> wrote:

> From: Tom Childers, N5GE <n5ge at n5ge.com>
> Subject: Re: [Elecraft] 1.8 or 2.1 kc Filter
> To: "Mike Miller" <mmiller at nctc.com>
> Cc: elecraft at mailman.qth.net
> Date: Friday, July 11, 2008, 8:17 PM
> On Fri, 11 Jul 2008 14:51:24 -0500, "Mike Miller"
> <mmiller at nctc.com> wrote:
> 
> >Anyone have experience with 1.8 and 2.1 kc filters for
> the K3?
> >Trying to decide which one to get..
> >
> >I am a DXer exclusively......not a contester...
> >work CW rarely....
> >
> >
> >Does the audio from 1.8 sound too pinched....? 
> >I just dont want to hear a 59+10 signal that is 3
> kc..from the frequency I am listening on....
> >
> >any thoughts? on what filters to get..
> >
> >Mike Miller KA5SMA
> [snip]
> 
> I've had 1.8 filters in many different rigs over the
> years and found that I
> rarely used them because, in my opinion, they are too
> narrow for SSB, making it
> sound tinny to me.
> 
> Tom, N5GE - SWOT 3537 - Grid EM12jq
> 
> "Those who would give up 
> Essential Liberty to 
> purchase a little Temporary 
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> 
> An excerpt from a letter 
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> of Pennsylvania.
> 
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> 
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