yes, the maps exist, i made one of cell towers
via GIS upon experimenting with an online-map-
making utility (unknown URL) though Odden's
Bookmarks is the place to start (interactive
mapping-> then choose 'cellular' if given an
option on a us based infrastructure map (i.e.
airports, radio stations, cell companies, etc.)
you'll basically get a bunch of overlapping
coverage areas or bubbles. here's an example:
http://www.electronetwork.org/temp/celloverlapmn.gif
http://www.electronetwork.org/temp/UScellularmap.jpg
one model is the CellSensor which is about 30.00
and was donated by the company for my research.
i believe it was a continuation of the popular
'dr. gauss' meters (popular low-cost EMF meter)
in that it has decent industrial design, a red
flashing light that indicates intensity along
with a meter and sound. it includes a booklet
about the most basic aspects of EMFs which is
helpful. though i could not get the cellular
sensor to work (though i don't use a cell...,
so may not have been able to test it correctly).
it is a good investment IMO. over that price i
don't know what the benefit is to approximate
readings of EMFs, unless one knows exactly what
the information means, as they all have sound/
lights by now. the cellsensor is a single-axis,
some have 3D-like axes so you can see the shape
of a field (i think, i've wanted to try it out).
another option is the 5-10 AC voltage probe that
can be found in every hardware store to locate
wiring hidden behind walls. this EMF meter is
just an audible/visual beep/flash, and no meter
except that it visualizes about 5" away from a
strong enough field (probably only 110 voltage,
and above, though some may go lower). these use
calculator batteries and can give a sense of the
emissions of EMFs beyond the perceived physical
boundary of, say, a powercord. it has a sheath
of EMFs around it. and a lot of stuff has a lot
of electricity going to it/through it, even if
it is 'off'. i think if you're doing outdoors-
type experiments, go with a popular low-cost
EMF meter. if looking around the home, go with
the 5-10 option to get a sense of micro-spaces.
online stores (some dedicated to electromagnetic
and electricity health devices) have such meters.
i do not have bookmarks currently, though google
"EMF meters health" and it should get you close.
via GIS upon experimenting with an online-map-
making utility (unknown URL) though Odden's
Bookmarks is the place to start (interactive
mapping-> then choose 'cellular' if given an
option on a us based infrastructure map (i.e.
airports, radio stations, cell companies, etc.)
you'll basically get a bunch of overlapping
coverage areas or bubbles. here's an example:
http://www.electronetwork.org/temp/celloverlapmn.gif
http://www.electronetwork.org/temp/UScellularmap.jpg
Where can one get an EMF meter?
one model is the CellSensor which is about 30.00
and was donated by the company for my research.
i believe it was a continuation of the popular
'dr. gauss' meters (popular low-cost EMF meter)
in that it has decent industrial design, a red
flashing light that indicates intensity along
with a meter and sound. it includes a booklet
about the most basic aspects of EMFs which is
helpful. though i could not get the cellular
sensor to work (though i don't use a cell...,
so may not have been able to test it correctly).
it is a good investment IMO. over that price i
don't know what the benefit is to approximate
readings of EMFs, unless one knows exactly what
the information means, as they all have sound/
lights by now. the cellsensor is a single-axis,
some have 3D-like axes so you can see the shape
of a field (i think, i've wanted to try it out).
another option is the 5-10 AC voltage probe that
can be found in every hardware store to locate
wiring hidden behind walls. this EMF meter is
just an audible/visual beep/flash, and no meter
except that it visualizes about 5" away from a
strong enough field (probably only 110 voltage,
and above, though some may go lower). these use
calculator batteries and can give a sense of the
emissions of EMFs beyond the perceived physical
boundary of, say, a powercord. it has a sheath
of EMFs around it. and a lot of stuff has a lot
of electricity going to it/through it, even if
it is 'off'. i think if you're doing outdoors-
type experiments, go with a popular low-cost
EMF meter. if looking around the home, go with
the 5-10 option to get a sense of micro-spaces.
online stores (some dedicated to electromagnetic
and electricity health devices) have such meters.
i do not have bookmarks currently, though google
"EMF meters health" and it should get you close.