[SunRescue] Suburban Wireless?

[Ken Hansen]

The wording means, (IANAL) as I understand it, that a Part 15 classified
equipent user (your 7 year old son and his friend, for instance, using their
"Space Commander" Walkie-talkies on CB Channel 14) can not petiton the FCC
for assistance if another transmitter is interfering with their use.

Taken another way (IANAL), no one is lower, legally, than a user of part 15
certified equipment.

Part 15 states, (again IANAL) IIRC, that a part 15 transmitter can use
almost any frequency, but may not knowingly cause interference (Radar
jammers are out, FM Stereo transmitters are in).

Oh, and the antenna can only be one meter (39.4", but IANAR - I Am Not A
Ruler ;^) from the transmitter, including transmission cable. And finally, I
seem to recall that the power limitation is 100 mW, and I think it is
measured by ERP (Effective Radiated Power).

But, IANAL... ;^)

Ken

----- Original Message -----
From: "Chris Byrne" <chris at chrisbyrne.com>
To: <rescue at sunhelp.org>
Sent: Monday, April 23, 2001 9:33 PM
Subject: RE: [SunRescue] Suburban Wireless?


>
> James Sharp wrote:
>
> >> Some acces points advertise up to 250 meter range, but with the
standard
> >> antennae you are lucky to get 100 meters,and more like 50 with
> obstructions.
> >> It's illegal to amplify the signal beyond a certain point, where it
could
> >> "cause undue interference" which basically means scrambling your
> neighbors
> >> cordless phones etc... etc... so your best bet here is good antennae
> design.
> >
> >They're certified under FCC part 15, which means a) It cannot cause
> >interference and b) Must accept any interference.  But yes, good antenna
> >design is definitely a must.  You can overcome a lot of the problems
> >caused by lack of transmitter/receiver horsepower with antenna gain.
>
> I always wondered why they included the "must accept any interference"
part.
> The language is such that if for example I used braided coaxial shield on
my
> feed line then I would not be accepting interference. I always thought it
> was kind of pointless.