Doesn’t take much stray signal to interfere with a ground station. You have ground stations all over the place that may be aimed at a satellite and any local activity from terrestrial transmitter in the area can kill them. I remember the back end of this whole thing, when C band were just getting going and AT&T had a bunch of terrestrial microwave links on the same band. People thought that a point to point aimed totally away from the earth station would not be a problem. It was a problem. Big problem. All the ground based systems had to shut down to allow everyone to get showtime and HBO.
From: Sean Heskett Sent: Monday, December 17, 2018 2:03 PM To: AnimalFarm Microwave Users Group Subject: Re: [AFMUG] C-Band Alliance letter Yeah but as it stands each licensee has 500mhz (full band) full arch of the sky protection, even if they are only using a small portion of the band and in one direction. It’s a big waste of spectrum that can be now be shared with the new SAS type database coordination to protect current users but still allow mobile and fixed wireless to opertunistically use what isn’t being used. -Sean On Mon, Dec 17, 2018 at 12:49 PM <[email protected]> wrote: But if you owned a C band satellite and had been making money for years off of it, I can see where you would want some protection. From: Mark Radabaugh Sent: Monday, December 17, 2018 10:50 AM To: AnimalFarm Microwave Users Group Subject: Re: [AFMUG] C-Band Alliance letter Well - the C-Band alliance is a front for the satellite industry and the spectrum they are discussing is potentially being reallocated for fixed wireless use. The satellite industry would like to be paid top dollar for the spectrum they received for free years ago versus the FCC just deciding they want it back and making it available on a Part-101 type basis. WISPA’s proposal to the FCC is shared use at much lower cost. Are they the enemy? Well - they certainly didn’t come to WISPA asking to make a deal with the members and are making an active end run around. C-Band Alliance has also opposed pretty much everything WISPA and WISPs have done in the past. Mark On Dec 17, 2018, at 12:21 PM, Steve Jones <[email protected]> wrote: Are they our enemy? On Mon, Dec 17, 2018 at 11:12 AM Mark Radabaugh <[email protected]> wrote: Sent to the WISPA lists, but I know a lot of you don’t watch those lists so reposting here... A letter is being mailed to nearly all WISP’s in the country by the “C-Band Alliance” regarding 3.7-4.2 Ghz spectrum. Please do not take any action on this until you hear more from WISPA. Further information will be coming shortly. Mark Mark Radabaugh WISPA FCC Committee Chair [email protected] 419-261-5996 -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com ------------------------------------------------------------------------------ -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com -------------------------------------------------------------------------------- -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com
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