Amateurs
using the 23-centimeter band (1240-1300 MHz) need to be aware of a new generation
of radar systems being deployed by the Federal Aviation Administration that
operate between 1240 and 1350 MHz. The ARRL Letter reminds hams that the
amateur allocation on this band is secondary to radionavigation (radar) and
certain types of satellites, and that those primary users must be protected
from interference. The ARRL says it is in contact with FAA engineers to
determine the areas in which accommodations may be required to protect the new
Common Air Route Surveillance Radar system.
