David:
Hee. It's a fair question: the 2.4GHz band isn't
unlicensed because the FCC was feeling generous. It's
unlicensed cuz it's filled with microwave (as in food
and as in non-terrestrial) garbage.
People talk about having a "Bluetooth enabled
ear-piece for the cell-phone", seem to skip the fact
that some skeptics *may* not want to put a little oven
in their ear. Cell-phones, at 2.3GHz, don't absorb into
water nearly as well as a 2.4GHz transmitter does.
-Scott
On Thu, 26 Jul 2001, David Douthitt wrote:
> Mike Sensney wrote:
>
> > The 2.4 GHz radios use 50 ohm cable. You can use the RG 58 cable that tends
> > to be readily available. You will loose about 3Db, or half your power, for
> > every 16 feet of cable. A lot of the RG 58 cable on the market has poor UV
> > protection so that can be a problem in direct sun. If you need a better
> > cable the LMR series seems to be popular with the wISP crowd.
>
> As a ham operator myself, I've a question for you wireless wizards.
> I've heard that newer cell phones operate somewhere in 2GHz, and now you
> mention this.
>
> Seems to me I remember that standing next to a 1+ GHz antenna is likely
> to have SERIOUS consequences... like burning a hole in your head ;-)
>
> Or was that 12GHz?
>
> You all can probably tell I don't do any work in the GHz bands :-)
>
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