Recommended K3/100 filters

[Mike Geddes]

My K3/100 has been on order for a couple of weeks now. Really excited about
the prospect of it getting here on down the road. Here is my question . . .
what optional filters should be ordered for this rig?  I work SSB mainly,
and some CW.  And neither in contest situations really.  I was thinking
about the 250 and 500 Hz CW filters, as well as the 2.8Khz SSB.  What do
some of you K3 owners think about this?  What are your recommendations?

Thanks and 73,

Mike
N4JX


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[Vic K2VCO]

Mike Geddes wrote:

> what optional filters should be ordered for this rig?  I
> work SSB mainly, and some CW.  And neither in contest situations
> really.  I was thinking about the 250 and 500 Hz CW filters, as well as
> the 2.8Khz SSB.  What do some of you K3 owners think about this?  What
> are your recommendations?

For regular SSB work, the standard 2.7 kHz filter should be fine. The
jury is still out on whether the 8-pole 2.8 is worth the extra money.

For CW, you should have the 500 or 400 (same caveat about the more
expensive 8-pole version).

I have found the 1 kHz filter very useful for CW, because I like to
listen with a wider bandwidth.

Probably only serious digital guys need the 250. Remember that you can
narrow the bandwidth with the DSP, and the filters are only used to
protect the DSP from signals greater than about S9+30.

This is all just MY OPINION and others may disagree!
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
K3 no. 00007
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[M0XDF]

If you want the 2.8KHz, you can swop out the 2.7 and replace with 2.8 at a
discounted price


On 10/12/07 17:13, "Mike Geddes" <[hidden email]> sent:

> My K3/100 has been on order for a couple of weeks now. Really excited about
> the prospect of it getting here on down the road. Here is my question . . .
> what optional filters should be ordered for this rig?  I work SSB mainly,
> and some CW.  And neither in contest situations really.  I was thinking
> about the 250 and 500 Hz CW filters, as well as the 2.8Khz SSB.  What do
> some of you K3 owners think about this?  What are your recommendations?
--
One can pay back the loan of gold, but one dies forever in debt to those
who are kind. -Malayan Proverb


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[Simon (HB9DRV)]

FWIW I hear the difference as the 250Hz kicks in as I change the bandwidth
from 300Hz down to 250Hz, the difference is (I think) less DSP noise - maybe
Lyle can explain. It's not a problem at all.

For SSB I have the 1.8kHz and that really is a great filter, I was listening
on 40m a few hours ago with 1.6kHz bandwidth - very, very good.

I agree about 1kHz for tuning about on CW.

Simon Brown, HB9DRV

----- Original Message -----
From: "Vic K2VCO" <[hidden email]>

>
> For regular SSB work, the standard 2.7 kHz filter should be fine. The jury
> is still out on whether the 8-pole 2.8 is worth the extra money.
>
> For CW, you should have the 500 or 400 (same caveat about the more
> expensive 8-pole version).
>
> I have found the 1 kHz filter very useful for CW, because I like to listen
> with a wider bandwidth.
>
> Probably only serious digital guys need the 250. Remember that you can
> narrow the bandwidth with the DSP, and the filters are only used to
> protect the DSP from signals greater than about S9+30.
>

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[Joe-aa4nn]

Hi Mike,
Along with others here is my recommendation.  You work mostly
SSB very little CW and no contesting to speak of.  I don't see
why you would want a CW filter more narrow than 1khz.  If you
need to be tighter than that, probably not, but you can narrow it all
down with the DSP.   OTOH if you have the bux, go for it all.
de Joe, aa4nn

----- Original Message -----
From: "Mike Geddes" <[hidden email]>
To: "Elecraft" <[hidden email]>
Sent: Monday, December 10, 2007 12:13 PM
Subject: [Elecraft] Recommended K3/100 filters

> My K3/100 has been on order for a couple of weeks now. Really excited
> about the prospect of it getting here on down the road. Here is my
> question . . . what optional filters should be ordered for this rig?  I
> work SSB mainly, and some CW.  And neither in contest situations really.
> I was thinking about the 250 and 500 Hz CW filters, as well as the 2.8Khz
> SSB.  What do some of you K3 owners think about this?  What are your
> recommendations?
>
> Thanks and 73,
>
> Mike
> N4JX
>

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