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That you might be interested in. http://lists.contesting.com/ma...

Also, you might lookup the owner of this site: http://www.arraysolutions.com/... if you have any questions.

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Lightning is a very fast pulse. Therefore, it is actually a form of RF energy.
https://ewhdbks.mugu.navy.mil/wavelet.pdf
http://lists.contesting.com/pipermail/tentec/2003- December/040019.html
RF would much rather travel on the surface of an object than internally.
http://www.conestogac.on.ca/eet/courses/microwave_ techniques/skin_effect.html
So, yes, the skin effect applies.

Geeks are more hams every day with their antenna farms.

Try reading about tower review, or join in on Tower Talk.

Better yet, get a ham license. The technician test isn't even that hard.

Many Ham Radio contesters are still using DOS to log our contest activity. At KC1XX we just retired a 486/66 MHz running DOS that had been the mainstay of our 40 meter operating position since at least 1995. We are still running DOS 6.22, but now on 90 MHz Pentium I machines. They are networked using 3COM cards, 10Base-T and DOS packet driver. These machines are plenty fast enough for us. We are concerned that too many things can go wrong using a Windows-based environment.

It would be much more productive if Reed and other "architects of the Internet" spend time finding solutions to EM pollution caused by switching power supplies and digital systems, rather than proposing ways to make problems worse in areas they clearly don't understand.

This comment follows a rant which ironically ignores most modern radio breaktrhoughs: packet routing and frequency hopping on low power devices to create a network with far greater bandwith than a single transmitter per frequency set up that's current. Instead, he focus on ancient details of antenae size and signal propagation. It's amazing that someone could ignore the demonstrated reality of Alohanet and 802.11B meshworks and then call others ignorant.

Then again a simple search pulls up stuff about Tom Rauch. Is this guy a profesional slammer or what?

• Some strange blow up over RF amps in the early 90's
• Another Amplifier blowup.
• Interesting tube rant.

Well, fine, he knows his tubes and amps, IF the first person linked to above is not correct in assesing him as a whore. You have to be suspicious of people who rant so.

All of the other letters on that page supported Lessing's conclusion that the broadcast spectrum is poorly allocated and mostly empty. There was that one bizare and false analogy to a pinhole cameras with no pinhole. I've never seen a pinhole radio, it must be intersting.

Site dedicated to ham radio contesting

ARRL DX Contest (soapbox comments

November Sweepstakes Comments

Contest Calendar

General Ham Radio Info

this is KF8QE

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Well, lighting and windmills is pretty much a solved problem... Lighting is not 100% predictable, though, so there are occasional weirdnesses that should be planned for.
Owners of large towers have found that you can prevent lighting from occurring by burying three cables radiating outwards to the height of the tower, then installing large metal "dissapators" at a couple of points on the sides. Take look at lightning prevention .vs. protection for a more detailed description of the technology.
There's also a lot of discussion of this sort of thing on the "Towertalk" list if you're interested; for example this post.
--Charlie

I think this email proves my point. A windows idiot who can plug in network cables, but has no clue how to setup the hardware when something goes wrong.

Get your wavelengths right. 1.8-2.0 MHz is 160m and 3.5 to 4.0 MHz is 80m/75m (40m is 7.0-7.3 MHz). A good write up on removing harmful interference can be found here on the 160m mailing list (watch out if you join, the list admin is a real asshole). There is also a email list on this sight specifically for RFI. I also think ADSL is cool. The cable companies are screwed (especially for business) because they can't gurantee uptime or bandwidth.