Doug,
I checked 20m about 5pm and noted S3 noise but also that I had the
PRE turned on. With preamp off 20m noise is running S2. But both
40m and 80m see S6 noise on my inverted-V hung on the tower under the
triband yagi. This high for usual on these bands for here (yes, PRE is off).
I looked up your location which is in the mountains near Steamboat in
northern CO. 2000 pop/480 sq miles = 4 people per sq-mi which is way
less density from where I live. 4,200 in a 16x 10 mile strip along
the western shore of the Kenai Peninsula. Density = 4200/160 = 26
people per sq-mi. But that is not accurate for my nearby density
around a lake with average property size of 2-3 acres and 2.5 persons
per property. Probably 200-300 within a mile. All have wireless
devices and consumer electronics galore. Many are line of sight
across the lake. I do have buired utilities in the near 1/4 mile but
overhead wired beyond that. Internet is phone line DSL and TV by satellite.
Also we have a refinery, LNG plant, and local gas-trubine generation
station 2-miles to the west. 12 miles south is a city with 7500
people in typical city density and many stores and businesses (lots
of digital cash registers). Another city of 7500 lies another 11
miles south to the first so in 30-mile radius we have a pop of about 30,000.
I would guess that is not at all comparable to where you live.
Alaska has ground conductivity problems with frozen soil which really
affects electrical noise. But if you get out in roadless bush its as
quiet at you make your home electronics (and generator).
73, Ed - KL7UW
Date: Sat, 2 Dec 2017 08:05:16 -0700
From: Doug Person <d...@k0dxv.com>
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 PRE function question
Message-ID: <27b87eb6-4c04-a59b-b3d7-03cb15f67...@k0dxv.com>
Content-Type: text/plain; charset=windows-1252; format=flowed
That seems odd. I live in a community of about 2000 spread over an area
of 450 square miles. There is power and phone service to every house.
Internet is either satellite or over the cellular network. My noise
level on 20 meters is less than S1 and usually doesn't even move the
meter. 80 and 40 are typical of atmospheric conditions. Even on my
full-size 40 meter vertical the noise level is typically S1 to S2.
You must just have some really bad luck. I think I live in a typical
rural community where the only real noise generator is a cranky electric
fence.
Doug -- K0DXV
73, Ed - KL7UW
http://www.kl7uw.com
Dubus-NA Business mail:
dubus...@gmail.com
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