[TVARC] Noise Levels: Dunedin Neighborhood @ K4QR's QTH

[Anthony Hackenberg]

Hi Members of TVARC's MailList,

Thanks to Cal Fuhrman's (WA3CTZ) response to this thread about noise levels
in our neighborhoods of The Villages, I think his idea to separate the
noise readings into at least 2 categories/types.  First, the "general" type
(the overall, background noise level experienced across the band).  Second,
the "specific" type (a more specific, louder, level experienced at a
particular frequency or range of frequencies).  So, based on Cal's idea,
I've taken today's measurements and put them in these 2 categories/types.

The noise level measurements today (at my QTH in Dunedin) were:

*Noise Type: General (across the band)*:
Date     Time    QTH             Band       Noise Level
(EDT)    (EDT)   (The Villages)  (@MHz)     (IC7610's S-meter)
-------- -----   -------------   ---------- ------------------
20190328 02:18   Dunedin          20m at 14.246 S2.5 [oscillating quickly
between 2 & 3]
20190328 03:21   Dunedin          20m at 14.246 S2.0 [" quickly around 2]
20190328 11:08   Dunedin          20m at 14.246 S5.0 [" quickly between 4.7 &
5.2]

*Noise Type: Specific* (particular to just parts of the band):*
Date     Time    QTH             Range**        Noise Level
(EDT)    (EDT)   (The Villages)  (~MHz)         (IC7610's S-meter)
-------- -----   -------------   -------------- ------------------
20190328 11:27   Dunedin         13.914-13.931  S9 [oscillates quickly 7-9;
peak at 13.923]
20190328 11:27   Dunedin         14.078-14.112  S9 [oscillates quickly
7-9+; peak at 14.087@S9+!]
20190328 11:27   Dunedin         14.257-14.282  S9+ [" 8-9+; peak at 14.274
@S9+]
20190328 11:27   Dunedin         14.438-14.464  S9 [" 7.5-9; peak at 14.453
@S9+]

Notes:


* The characteristics of the *specific* noise type that I've experienced at
my QTH for a very long time:
It is a very loud noise.
It will gradually move (at a turtle's speed) around a band.  It's NOT
limited to the ham portion of a band.
It randomly appears at several different frequency ranges of within a band.
It generally stays put in that range for long durations (from as little as
under 1 hour to many hours).  Over time, however, it gradually drifts to
another seemingly randomly selected band of frequencies.  The IC-7610's
Noise Blanker and Noise Reduction buttons have little to no effect on it.

** This range of frequencies is approximate because the edges (ending
points) of this specific noise type are not sharp.


73,

Tony/K4QR
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