I am using:
13 KHz: 0 dB
2.7 KHz: 0 dB
2.1 KHz: 0 dB
250 Hz: 6 dB
When the 2.1 and 250 filters switch in, the signal level in the
earphones doesn't seem to change, but the noise level does
indicating an improvement in S/N. Perhaps they are sharpening
the cutoff of the DSP filter removing some of the off-frequency noise?
Cheers - Bill, AE6JV
On 3/2/14 at 11:51 AM, [email protected] (Matt Zilmer) wrote:
In the K3 Utility -> Configuration tab -> Configure Crystal Filters,
you will see that each filter has a Gain setting. You can change the
gain on a per-filter basis to maintain approximately the same overall
gain. Generally the smaller bandwidth filters require a few more dB
gain than wider ones.
An example:
13 KHz: 0 dB
6 KHz: 0 dB
2.8 KHz: 1 dB
1.8 KHz: 2 dB
0.25 KHz: 4 dB
These settings work well in my K3.
On Sun, 2 Mar 2014 11:37:58 -0800, you wrote:
I have the 2.1 KHz (for SSB) and the 250Hz (for CW and
digital) filters. ... I notice as I am narrowing the bandwidth
in both CW and SSB, when the K3 switches to a narrower filter,
there is a noticeable step down in the noise level that
doesn't occur when just narrowing the DSP bandwidth one notch.
-----------------------------------------------------------------------
Bill Frantz | "The only thing we have to | Periwinkle
(408)356-8506 | fear is fear itself." - FDR | 16345
Englewood Ave
www.pwpconsult.com | Inaugural address, 3/4/1933 | Los Gatos,
CA 95032
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