We may also be referring to different types of QRN. I have almost zero
local noise, the transmit antenna is usually about S1 midday and on
quiet nights, S2-3 at night.
Locally generated QRN is generally more even and narrow filtering may be
beneficial in that case. Propagated QRN, which is what I mainly hear,
is more erratic, with bursts and inconsistent behavior, where wider
bandwidths seem to benefit. As Jim points out, there is science behind
it, but I also think the inherent phase distortion and how it is
processed / handled by the brain may be a function of the individual to
some extent.
73 Eric NO3M
On 11/30/2016 01:28 PM, N2TK, Tony wrote:
Eric,
I agree and open up the bandwidth when there isn't strong adjacent signals,
especially with the upper bands. But on Topband I do seem to hear better in
the QRN with the filter narrowed down to 200HZ.
I do wonder why the difference we both see on Topband with you using a wider
setting and I am using a narrower setting? Maybe you have better receive
antennas?
I only have a couple Pennants, a short 3-el vert inline array that I can't
get working well and a BOG. I haven't optimized the length yet on the BOG.
But so far it hear fairly well. I sure do miss my long beverages when I
lived in Joisey.
73,
N2TK, Tony
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