DSP Shape Factor and Weak Signals

[Barry N1EU]

My experience with low band dx'ing on the Orion concurs with W4ZV's -
particularly in noisy conditions.  Instead of using a steep skirted
400hz filter, I found that using a broad skirted but nominally
narrower (100-150hz) filter in DSP consistently did a better job
pulling the weak sigs out of high noise on the Orion.

Will the K3 afford adjustability of the DSP filter shape?

73,
Barry N1EU
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[Greg - AB7R]

Barry,

The K3 has a great tool similar to this.  Its called a dual pass band filter
but a better description may be a context filter.  The firs 20dB or so is
narrow but the the skirt widens out below that.

73
Greg
AB7R


-----Original Message-----
From: [hidden email]
[mailto:[hidden email]]On Behalf Of Barry N1EU
Sent: Sunday, September 30, 2007 4:50 AM
To: [hidden email]
Subject: [Elecraft] DSP Shape Factor and Weak Signals


My experience with low band dx'ing on the Orion concurs with W4ZV's -
particularly in noisy conditions.  Instead of using a steep skirted
400hz filter, I found that using a broad skirted but nominally
narrower (100-150hz) filter in DSP consistently did a better job
pulling the weak sigs out of high noise on the Orion.

Will the K3 afford adjustability of the DSP filter shape?

73,
Barry N1EU
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[Bill Steffey NY9H]

Now THAT subject line will hit all the mailboxes/folders....

With all the great stuff flowing along,  it certainly makes it easier
if we keep the model  in the subject line....

just a request from the midlands, where it's 21F, the ground is
frozen and I worked my first K3 yesterday.

thanks

bill   k3#44

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