Not that I am sticking up for rule breakers or anything, but I doubt
the FCC has the manpower to go after 802.11 offenders. It's basically like
with CB anymore. If you are not causing major problems for a lot of folks,
they arent going to look your way.
That being said, I believe in careful compliance to the rules. The
Part 15 rules are not as straight forward as a maximum ERP. They allow 1
watt with a 6dBi gain antenna and they require a reduction in power, a dB of
power for a dB of antenna gain, for omni antennas that have more than 6dBi
of gain. For directional antennas running point to point, they require a
reduction of 1dB in power for every 3 dBi of antenna gain over the allowed
6dBi. This becomes a little confusing but it means that when you account
for cable losses, most point to point setups running a 1/2 wat or 1 watt amp
with the grid-dish type antennas and yagis, are in the clear.
Wade - KR7K
----- Original Message -----
From: "Mike Perryman" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Wednesday, December 08, 2004 2:59 PM
Subject: RE: 4-wire E&M + VoIP (was: Re: [Repeater-Builder] Re: Remote
Receiver
>
> I realize this is a "rules thing"... pardon my momentary digression....
>
> Please keep in mind that the power limitation for those part 15 devices is
> ERP... not TPO. Lots of folks with high gain antennas and amplifiers on
> their houses are in violation... hope they don't get caught.
> Seems the Commission has been on an enforcement (revenue) binge lately..
no
> slack given.
>
> 73's
> Mike Perryman
> www.k5jmp.us
>
> -----Original Message-----
> From: Bob Dengler [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, December 08, 2004 4:51 PM
> To: [email protected]
> Subject: Re: 4-wire E&M + VoIP (was: Re: [Repeater-Builder] Re: Remote
> Receiver
>
>
>
> At 12/8/2004 12:40 PM, you wrote:
>
> >Steve Rodgers wrote:
> >
> > >Nate,
> > >
> > >Why not use a full duplex RF link to your data center? That way you
> could
> > >have "dumb" hardware at the site, and all your smarts at the data
> > center. You
> > >could also avoid paying for a DSL connection at the site as well.
> > >
> > >Steve
> > >WA6ZFT
> > >
> > >
> >Ah, a number of reasons.
> >
> >Commercial sites you pay by the antenna, but there's more often than not
> >at least one TCP/IP pipe that someone already pays for at most
> >commercial sites now that an appropriate deal can be made to ride along
> >on, and some really fat shared pipes available at some.
> >
> >Simplicity - maintaining a cheap IAXy device (throw it away if it
> >breaks) is better than messing with multiple link radios, feedlines,
> >antennas, etc. Put the redundancy in the data network instead.
> >
> >Why? If you put your own IP pipes in, you can do other things with
> >them... it's more "universally useful" than a dedicated link radio to do
> >other "stuff" with at the sites... remote monitoring, reprogramming, run
> >club servers, remote power switching, etc etc etc... and
> >what-have-you... lots of uses only limited by imagination -- a dedicated
> >link radio is a one-hit wonder.
>
> ...and if internet isn't available at the site, how about using 802.11b or
> a to bring it in? I've yet with play with that stuff, but it sounds to me
> like a pair of gain antennas at each end could get you a couple of miles
to
> where you would have wired internet access. Anyone try this?
>
> Bob NO6B
>
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
>
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