[Alexandria Radio Club Reflector] Use of 1.2Ghz and FAA new systems

[Ian]

Below is from ARRL NEWS LETTER.
We need to watch this for all of our 1.2GHz allocations (D-Star D/V, Analog
Voice)
73 Rick

The Federal Aviation Administration (FAA) is deploying a new generation of
Common Air Route Surveillance Radar (CARSR) that has some implications for
the use of the 1240-1300 MHz (23 cm) band by amateurs. The Amateur Service
allocation in this band is on a secondary basis, with aeronautical
radionavigation and several other services primary in the United States
Table of Frequency Allocations. The FCC rules require that amateur stations
operating in the 23 cm band may not cause harmful interference to stations
in the radionavigation-satellite service, the aeronautical radionavigation
service, the Earth exploration-satellite service (active) or the space
research service (active). One case of harmful interference in Southern
California has been reported. 
CARSRs are being installed in several dozen locations throughout the country
and will use various frequencies in the 1240-1350 MHz range with an occupied
bandwidth of about 3 MHz. In the vicinity of the radars, amateur operation
may be precluded in a portion of the 23 cm band. The ARRL is in contact with
FAA engineers. We anticipate that the constraints on amateur use of the band
will be limited to those necessary to protect aviation safety, which of
course cannot be compromised.