[prev in list] [next in list] [prev in thread] [next in thread] 

List:       kismet-wireless
Subject:    Re: AW: [KISMET] Cisco LMC352
From:       Eric Johanson <ericj () cubesearch ! com>
Date:       2002-04-30 20:54:17
[Download RAW message or body]

While it's good to be safe, if you are only using 30mw or even 100mw
cards, you really have very little to worry about.  That being said,
having a 24dbi parabolic pointed at your body over long time periods will
heat you up.  There have been inconclusive studies on the effects of
RF; cancer, etc.   I would still not put an antenna on my head, but I
wouldn't worry about being around omnis or other such small gain antennas.

My 2c.

-Eric

On Tue, 30 Apr 2002, Daniel Cherill wrote:

> let me just make a point while we are talking about holding antenna's or
> attaching them to our heads.
> as reading the cisco documentation, they suggest not using the cards or
> antennas while within 2 inches of the body, and while using an amped antenna,
> no closer than 12 inches.  as i was telling mike, when using the dlink card
> with patch antenna all day, my left leg would itch when i was trying to fall
> asleep, just about where the antenna sat on my leg.  and shal i remind you
> that 2.4 gHz cooks the cornias of your eyes (i can't speel).  mounting
> antenna's to your head may not be the greatest idea.  like mike i have the
> maxrad patch antenna mounted to the back screen of my laptop (far away from
> my crotch) and that little omni mike has does work wonders while driving in a
> car, almost twice the pickup rance because you aren't shielded from the car.
>
> good luck and try not to cook your eyeballs.
> -Dan
>
> On Tuesday 30 April 2002 12:11 pm, Frank Keeney wrote:
> > One of the 4 or 6 dbi Maxrad antennas would work fine. I would look like
> > you are walking with a white stick in the air, perhaps attach it to your
> > hat :-) You don't want too much gain or you will narrow the beam too much
> > and not pick up as much as you should. The pdf and the pattern below
> > should give you an idea of this.
> >
> > ftp://anonymous:anonymous@ftp.maxrad.com/maxradftp/xtremewave_omni_outdoors
> >.pdf
> >
> >
> > This is what I use on my car. It's very small and has a 5dbi gain and a
> > built in ground plain. With a pigtail it will connect right in to the
> > Cisco card. I've tested this antenna against others, this is the best
> > small antenna I've found.:
> >
> > http://pasadena.net/store/mag2400/mag2400trooperd.jpg
> > http://pasadena.net/store/mag2400/mag2400c.jpg
> >
> > Pattern:
> >
> > http://pasadena.net/store/mag2400/mag2400a.gif
> >
> > Frank
> >
> > BTW: I sell all of these. So I'm biased.
> >
> > See one of my articles: http://pasadena.net/vacation/ this one is with
> > Netstumbler. Soon, I'll write one about Kismet.
> >
> > On Tue, 30 Apr 2002 Thorsten.Sick@bc.boehringer-ingelheim.com wrote:
> > > Is there any antenna for real men ? I think about something
> > > more...impressive. omni directional. BIG. With a good gain. And of course
> > > attachable to the MMCX.
> > >
> > > I want it for war driving and walking. This means about 1 kg weight and 1
> > > meter length are ok.
> > >
> > > Wanting toys
> > > Thorsten Sick
>
>


[prev in list] [next in list] [prev in thread] [next in thread]