[NLRS] -- LONG -- Re: ARRL VHF contest power limits

[Zack Widup]

I like to keep things simple. That looks way too complicated to me. Maybe we
could add in path loss due to trees and enhancement due to passing
airplanes? Rytov's functions for laser propagation through turbulent media?

With 11 or 12 bands active, it's all I can do to get operational let alone
calculate that for each band. I really don't know what the loss is of my
WA3RMX feeds or of my unique 10 GHz feed.

I hope to work some of you this weekend. Point your antennas toward EN50rl
once in a while! We may not be able to work on 10 GHz but on lower bands,
who knows? I've worked as far as 500 miles on all bands with a good opening
before. And I'm QRP-Portable (under 10 watts on all bands).

73, Zack W9SZ

On Fri, Jun 11, 2010 at 8:13 AM, James Duffey <jamesduffey at comcast.net>wrote:

>
>
> Well, I ignored this when it first came up because as a rover I like to see
> people run as much effective radiated power as they can. It makes working
> them easier from the rover, which is usually average to slightly below
> average when it comes to other signals on the band. I like those big
> stations with 1.5KW and lots of aluminum. And there is no power restriction
> for rovers. Just what the wallet will bear.
>
> But I think it makes sense to start thinking of contest categories in terms
> of effective radiated power and height above average ground. That is what
> really determines the effectiveness of a station at VHF under unenhanced
> conditions. So perhaps effective radiated power, that is transmitter power,
> minus transmission line loss times antenna gain, perhaps multiplied by the
> square root of height above average terrain would make a good parameter to
> categorize stations with. Or some other set of parameters indicative of
> radiated power at low angles of radiation.
>
> This would more accurately reflect where power really matters: To good
> antennas up high. - Duffey
>
>
> --
> James Duffey KK6MC
> DM65tc
> Cedar Crest NM
>
>
>
>
>
>
>
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