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eHam Forums / Antennas and Towers and more / Defeat wind noise from bracketed tower?
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on: May 17, 2013, 05:14:15 AM
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Anybody been successful in dampening the wind noise transmitted to the house structure from a bracketed tower? I've put up 50 feet of Rohn 25 and all I have up there is a 135 foot dipole. It makes a low frequency hum that my wife can hear in the bedroom. I just take out my hearing aids, but that doesn't solve it for her.
Thanks, Eric (W1EL)
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eHam Forums / Contesting / RE: Ham for a month, and I hate contesters already.
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on: October 30, 2012, 03:57:37 PM
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I think the world is big enough that people can speak respectfully to each other and cooperate or accommodate each other reasonably. Usually any problem is a little bit of both sides.
Or has the TEA party invaded Ham radio mentality?
Bringing politics in to a previously non-political discussion is akin to trolling, IMHO. Best Regards, Eric
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eHam Forums / Antennas and Towers and more / RE: Magnetic or True North for antenna positioning?
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on: July 25, 2012, 05:41:34 PM
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Another "natural" way to get a ballpark idea of where true north is, is to look at where the Sun is at 12 o'clock (noon). It will be in the direction of true north, give or take a bit. The reason it will not be exactly at true north is that we now use time "zones" which means it is 12 noon over a large area of land.
When the sun is at its greatest altitude above the horizon, it is pointing at true north. In the era before time zones, each town had its own 12 o'clock when the Sun was at its highest in the sky. This caused mayhem when trains became commonplace - since their speed meant you would now be changing time rapidly. Standard time zones were introduced to overcome this inconvenience.
Also, the ancient greeks proved that the world was round a few thousand years ago by noting that on a certain day of the year, when the Sun was directly overhead, a well had no shadow inside. By noting the shadow cast in another town further away at the same time, they were able to work out the curvature and so the size of the Earth.
With all our technology these days, it is a shame if we would lose the simplicity of finding our way, that our ancestors used routinely.
73 - Rob
Respectfully disagree. From NA, the sun will be due south at noon. Stand with the sun at your back and face south. Or get a compass. GL de W1EL
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eHam Forums / Station Building / RE: Liquid electrical tape - worth a try ?
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on: July 25, 2012, 10:25:17 AM
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A single layer of Scotch 33 or 88 over the connector before putting on the coaxseal or rubber tape will make removal a lot easier. At work we use the barrier layer, rubber tape x 2 layers, then 2 layers of 33 or 88 on the outside. I can't recall the last time we had water inside.
GL from Maine!
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eHam Forums / CW / RE: CW on 2-Meters
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on: February 20, 2012, 04:59:47 PM
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Whenever there is an auroral opening, point your beam north and you'll hear 2m CW.
Also, in a VHF contest, if you travel to a high spot and bring your horizontal yagi with you, you'll pick up a few new grids.
I think the EME fellows use CW as well.
GL de W1EL
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