Hello gwp and thank you for you question.
The radio tower at Council Crest in Portland, Oregon, is also known as
'Stonehenge' or the 'KGON' tower.
4700 SW COUNCIL CREST DR
PORTLAND , OR 97239-1440
The 600 foot tower hosts KBOO, KGON, KPDQ-FM, KXJM, KKSN-FM and KWJJ,
FM stations and it also has a 2GHz Microwave Antenna 470 feet up.
Before the tower was built, there were some problems because the old
FM station antennas were so low to the ground that there was
interference from highly concentrated RF emissions. However there is
no longer any interference as they are now situated in the tower very
So now we know that the RF emissions are no longer a problem, what
about the 2GHz Microwave Antenna?
Well, the microwave antenna is used for telecommunications
On mountain tops, you will see towers with small dish antennas that
bounce microwaves from one dish antenna to another one that is perhaps
10 to 50 miles away. (The distance is really limited by the curvature
of the Earth.) Because of their high frequency, they can carry many
telephone conversations or many internet signals simultaneously."
Are microwave antenna safe?
"Microwave antennas mounted on free-standing towers or water towers
typically result in ground-level radiation fields many orders of
magnitude below the limits specified in Subchapter 42. Based on
current research findings, it is not expected that any adverse health
effects would result from exposure to radiation levels under these
circumstances. As a comparison, radiation levels on the ground from
these antennas are typically 10,000 times lower than the normal
leakage encountered a few inches from the surface of a microwave oven.
Some antennas may be mounted on rooftops or water towers. In these
situations, for a few antennas, Subchapter 42 limits may be exceeded
if one is standing directly in front of the antenna, a few inches from
the antenna face. For many other antennas, the power levels are so low
that Subchapter 42 limits will never be exceeded, even right up
against the antenna."
Also see (regarding Council Crest specifically) :
"Radio- and TV-tower fights are not as common, and victory for those
opposing broadcasters is rarer still. Take the folks of the Healy
Heights neighborhood in a hilly suburb of Portland, Oregon, called
Council Crest. By the late '80s, the community was already the home of
a sizable antenna farm (locals called it an "electric jungle") spewing
highly concentrated RF emissions, so when rock station KGON proposed a
new tower that, at 607 feet, was almost twice as tall as any on the
site, neighborhood groups mobilized.
Pointing to a study by a researcher at Oregon Health Sciences
University that purported to show an elevated incidence of leukemia
near the Healy Heights site and others like it in the area, activists
beseeched local authorities and the FCC to intervene. But
representatives of KGON, who assured government types that the new
antenna would actually lower RF levels on the ground, eventually
The tower was built, and after it became operational, consultant
Richard A. Tell, who'd been hired to conduct RF field studies prior to
its construction, returned to do further measurements. "The results
were just as the broadcasters predicted," he says. "Because the
antennas that had previously been close to the ground were higher up,
the ambient field levels dropped noticeably. The people there had all
kinds of worries about it, but it operated precisely the way we
thought it would, and I haven't heard any hue and cry from them
"Question - I live close to a radio antenna. Does it have radiation.
If so, how much and what is the safest distance?"
"There is no problem living near a radio antenna. Radio waves are no
more than electromagnetic waves that fulfill our universe. They are
like waves on a lake surface and the major part is invisible to us."
"Dr. Ken Mellendorf
Illinois Central College"
There is no scientific evidence to suggest that living close to a
radio tower is harmful, although it has to be said that there are many
individuals and organizations who caution against it, but it seems
that these objections are not based on any scientific fact (that I
could find) For an example of a website against microwave towers see:
Thank you for your question, and if you need any clarification of my
answer, do not hesitate to ask before rating my answer.
Very best regards,
Search strategy included:
"Microwave tower" safe