Also, remember this is based on flat ground, if you have a slope away from the airport, you'll find it is either higher or lower based on the relative ground elevation.
The location of our main office/router/core is actually above the glide slope, because the ground slopes up enough from the end of the runway to exceed the 50:1 or 100:1 or whatever it is at the distance we are. So even a short tower needs a FAA determination. On Tue, Apr 14, 2020 at 6:15 PM <ch...@wbmfg.com> wrote: > Depends on how far you are away. A steeper angle near the airport. > > *From:* Ken Hohhof > *Sent:* Tuesday, April 14, 2020 6:02 PM > *To:* 'AnimalFarm Microwave Users Group' > *Subject:* Re: [AFMUG] TOWAIR and ASR for existing tower > > > I have a TOWAIR report from Micronet, is that the same thing I’d get from > that form? > > It references a 100:1 slope, Chuck’s post seemed to imply 50:1, if he says > a 50 ft tower needs to be 2500 ft from the runway. > > > > *From:* AF <af-boun...@af.afmug.com> *On Behalf Of *Lewis Bergman > *Sent:* Tuesday, April 14, 2020 6:45 PM > *To:* AnimalFarm Microwave Users Group <af@af.afmug.com> > *Subject:* Re: [AFMUG] TOWAIR and ASR for existing tower > > > > The FAA had a tool to determine if you have to file. > > > https://oeaaa.faa.gov/oeaaa/external/gisTools/gisAction.jsp?action=showNoNoticeRequiredToolForm > > > > On Tue, Apr 14, 2020, 5:47 PM Ken Hohhof <af...@kwisp.com> wrote: > > We have a tower next to a commercial building, I think it’s a 45 or 50 ft > probably Rohn 45G. It is near a smallish regional airport but pretty much > 90 degrees to the runway. We need to swap out the 5 GHz backhaul links on > this tower for licensed. > > > > The frequency coordinator is telling us that according to TOWAIR we need > to file for an ASR, I assume they mean not just with the FCC but with the > FAA. > > > > By doing so, are we opening Pandora’s box, where they tell us not only is > our request denied, we have to take down the tower that has been there for > 20 years? Is this one of those things where we will really regret asking > the question and should have just kept quiet and suffered with the 5 GHz > interference? > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > ------------------------------ > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > -- - Forrest
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