Do you have anything in writing from them agreeing to frequency
coordination? If you do and they violated that agreement then you may
well have a case. I doubt you are going to have much luck pursuing them
on the interference issue otherwise. Now if they have antennas and
amplifiers with their Wi-Fi equipment it is very likely they aren't
using FCC certified systems, which could allow the FCC to shut them down
as well as fine them.
Todd Barber wrote:
I have had equipment deployed on a local water tank for about the last
two years. The setup has been sectorized and using 3 120 degree 2.4
GHz channels since we deployed. I also have 4 5.8 GHz links running
and one 5.3 GHz. Basically this site is vital to my network and I have
used a large chunk of the unlicensed spectrum.
About a year ago another company deployed a 5.8 GHz backhaul link and
a 2.4 GHz omni on the residence that is approximately 100 yards away
from the tank. Their initial deployment created 2.4 GHz interference
with my existing customers and I squeezed my existing sectorized
channels together to get away from it. I’ve been using 4, 7, and 11
while they have been deployed on 1.
In the past I have used a spectrum analyzer to evaluate the signals
from both my site and theirs. I believe all of my equipment is running
right at 36 dB as allowed by law for point to multipoint. When
measured with the same antenna from the same distance, their signal is
approximately 7 dB higher than mine. In addition to the excessive
power it also appears the amp they are using is dirty and the channel
width is wider than anything I am running.
Their initial deployment really upset me as their lack of engineering
judgment or just plain stupidity created issues for my customers who
had reliable links before. I couldn’t believe that anyone would choose
to deploy 2.4 GHz within a hundred yards of an existing installation
that was already using the entire spectrum. I have tolerated the
situation and dealt with the interference on my lower channel by over
engineering any links to that sector. I have also had my backhaul link
performance intermittently knocked off line after they changed
channels on their 5.8 GHz equipment.
During the backhaul interference issue I contacted the company and
give them credit for working with me to resolve the issue. During that
conversation they informed me they were more than willing to
coordinate with me and would notify me if they were changing channels.
Over the last few weeks I have been fighting with numerous troublesome
client connections on two different sectors that had been running
without issue. Today I went to the tank to upgrade the remaining 2
APPO units to a StarOS WRAP setup in an effort to improve performance.
When I arrived I found that my competitor has now installed a 50 ft.
pole and has deployed an additional 4 radios on it. Needless to say I
immediately understood why so many of my customers were experiencing
issues. I also see that the competitor was really sincere about
contacting me around channel usage.
My questions are what are my legal options, has anyone dealt with this
type of situation before (deployment within 100 yards), and what kind
of lawyer should I contact (any referrals are welecome)? With the
current heavy usage of spectrum at this site I do not believe there is
any option of let’s play nice and coordinate channels. There aren’t
any left to coordinate and they were all used before they deployed. I
don’t feel I have any option but legal action.
From past list discussions I am under the impression that there may be
the non FCC involved option of filing “interfering with my ability to
conduct business” suit. Any comments on this would be greatly
I also believe I may have recourse with the FCC. I am confident they
are exceeding the legal EIRP on their amped omni as one issue. I also
question if their behavior could be construed as intentionally causing
interference. Knowingly deploying within 100 yards of an existing site
that is already utilizing the spectrum seems to create a situation
that can not avoid interference. If they didn’t know at the time of
their initial deployment they were made aware of exactly what spectrum
was being used since via voice and email exchanges. Even if they are
not competent enough to use a spectrum analyzer they had been informed
of both the existing and potential for further interference issues
before the deployment of the new additional 4 radios I found today.
I’m not really sure I want to go down this path but again I don’t
believe they have left me any other options. How do I begin a
conversation with the FCC related to this situation?
Any and all comments would be greatly appreciated.
Skylink Broadband Internet
WISPA Wireless List: firstname.lastname@example.org