On 12/27/2016 4:41 PM, Seth Mattinen wrote:
On 12/27/16 13:35, Fred Goldstein wrote:Since you have the license, you are entitled to put up more devices, just not as Incumbent. So what you might want to do is pull the FCC's ULS records in that area to see what registered devices the existing WISPs have in the area you're looking to go into. It is possible that the WISPs in question didn't all bother to register everything they could have -- the number of registered devices in ULS strikes me as awfully low. Iowa, for instance, shows 60 licensees, some of whom register CPEs, some who don't.Or the WISP only registers the base stations, not the customers. How does the incumbent protection work in that case? Something like 4 miles out from the registered base station instead of the furthest CPE (since the CPEs were never registered)?
Yes. The registered base station gets a protection zone that goes out about 5.3 km where there is only unregistered CPE, but if there's a registered CPE the protection zone in that direction can go as far as the CPE:
"Specifically, under this approach, the Grandfathered Wireless Protection Zone around each eligible registered base station is defined by: (1) for sectors encompassing unregistered CPE, a 5.3 km radius sector from each registered base station based on the azimuth and beam width registered for that base station; and (2) for sectors encompassing registered CPE, a sector centered on each base station with the registered azimuth and beam width covering all registered subscriber stations within that sector."
Note however that the registered CPE is still limited to 18 km, or the farthest-out registered CPE in that sector, whichever is closer.
The diagram illustrating their August press release shows-Sector with unregistered CPE equipment receives protection only to 5.3 km radius -Sector without any registered or unregistered CPE equipment does not receive grandfathered protection -Sectors for protection of registered CPE equipment – angle determined by azimuth and beam width of registered base station, radius determined by location of furthest registered CPE, (normally not more than 18 km)
There are two of the latter, with different protection radii based on where their CPEs are.
BTW this is all in a Public Notice that is not a Rule per se. https://apps.fcc.gov/edocs_public/attachmatch/DA-16-946A1_Rcd.pdf "D'oh, I should have registered that CPE!" :-) -- Fred R. Goldstein k1io fred "at" interisle.net Interisle Consulting Group +1 617 795 2701
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