[Elecraft] K3: Real world use of 1.8 filter (oops)

[Keith Heimbold]

I will roll with the current setup for awhile but i have seen on several occasions how I can deploy the use of the 2.1 kHz filter in noisier band conditions say on 40m to improve intelligibility and readability of weaker signals.

If the 1.8 kHz filter will continue in that line of improvement, it would probably be warranted down the road to add the 1.8 khz filter and reconfigure my current setup on this K3.  I do have to hold off for more spending on the radio since I  focusing my green stamps on a SteppIR 3 element antenna upgrade project and my wife wants an incredibly expensive baby room for our first.

Keith
AG6AZ

Sent from my iPhone please excuse typos

On Jan 14, 2012, at 6:28 AM, "DOUGLAS ZWIEBEL" <dougzzz at gmail.com> wrote:

> I would like to change one word in the following paragraph.   In the
> last sentence, "If the SSB band..." change the word " If " to " Unless
> "
> 
> Sorry about that.
> 
> de Doug KR2Q
> 
> I have to wonder out loud how many guys are "feeling" the DSP filter
> width impact when they go from their 2.7 to 2.1 to 1.8 on SSB versus
> how much of that is improvement in IMD reduction specs.  For 99%, they
> probably are "feeling" the narrower DSP filter impact (which means the
> narrower roofing filter has essentially no impact at all).  If the SSB
> band is packed with wall-to-wall very, very, very strong signals, then
> I'm betting that the roofing filter BW just won't matter for the vast
> majority of ops.
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