WXforum.net
Weather Station Hardware => Blitzortung => Topic started by: miraculon on August 24, 2013, 10:38:34 AM
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I am wondering if I am the only one with ongoing noise issues. I got the local utility to reduce it somewhat, but there are noise sources that come and go.
Sometimes I can really crank up the gain on RED, other times I need to reduce it to eliminate the constant triggering on noise.
What is your situation in regards to interfering noise?
(I am open to suggestions on the question categories)
*The VLA refers to the "Very Large Array" Radio Telescope in NM. It was located where it was since it is far from man-made noise sources. A bit of geek humor on my part. :lol:
Greg H.
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I found that the shielding on both the loops and ferrites really helps reduce capacitively-coupled inductive noise sources, like power-line hum. Monitoring with my headphone amp, I can hear a very low-level hum and the occasional faint whir of a distant vacuum cleaner or blender motor. They are not even close to being strong enough to trigger a detection. We do have an underground electrical distribution system in my area, which probably really helps.
There is also a bit of low-level processor noise from the controller that I can hear, as my controller is about two meters from the antennas at the moment.
When I used to work 40 meter CW, there was a HV distribution transformer a few blocks away with arcing insulators that completely overwhelmed the band. A letter to the FCC with a copy to the Commonwealth Edison engineering department got the issue solved in a hurry.
I used a transistor radio tuned to a dead portion of the AM band to locate the arcing transformer insulator. That might work for you. The ferrite antenna in the AM radio makes a pretty good direction finder.
Some area have Internet over power line distribution (BPL) that can really kick up lots of interference.
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To clarify is this vote for both the system Red and older Green boards? I'm aiming to get the VLA moved to my front garden :)
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Either system. RED or GREEN, Loops, Panels, or Ferrites.
Greg H.
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I'm working on an idea... if I get everything else that Murphy's thrown at me out of the way.... (once you're infected, he lies dormant, then flares up, you know).
This week it's house guests, refrigerators, and misc contusions... :-({|=
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Plasma TVs are horrible noise sources... :evil: I can tell when my neighbor turns on his TV by turning on my HF radio (ham) - it completely swamps my receiver on 80 meters, I have not checked 160 meters.
Tim