Sec. 22.601  Assignment of microwave channels.

    Assignment of the microwave channels listed in Sec. 22.591 is 
subject to the transition rules in Sec. 22.602. No new systems will be 
authorized under this part.

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    (a) Coordination required. Before filing applications for authority 
to modify existing stations on these channels or major amendments to 
such applications, carriers must coordinate the planned channel usage, 
using the procedure outlined in Sec. 22.150, with affected parties in 
this radio service and the Point-to-Point Microwave Service and the 
Multipoint Distribution Service. Affected parties are licensees and 
other applicants with previously filed pending applications whose 
stations could affect or be affected by the proposed modification of the 
existing station in terms of interference.
    (b) System parameters. In designing a system modification, the 
applicant must select sites, equipment and channels that will avoid 
harmful interference to other users. All parties must cooperate fully 
and make reasonable efforts to resolve technical problems and conflicts 
that may inhibit the most effective and efficient use of the radio 
spectrum; however, a party receiving notification is not obligated to 
suggest changes or re-design a proposal in cases involving conflicts. 
The applicant must identify in the application all parties with which 
the technical proposal was coordinated. In the event that technical 
problems are not resolved or if an affected party does not respond to 
coordination efforts within 30 days after notification, an explanation 
must be contained in the application. Where technical conflicts are 
resolved by an agreement between the parties that requires special 
procedures to reduce the likelihood of harmful interference (such as the 
use of artificial site shielding), or would result in a reduction of 
quality or capacity of either system, the details thereof must be 
contained in the application.
    (c) Bandwidth. Applicants must request the minimum emission 
bandwidth necessary. The FCC does not authorize bandwidths larger than 
800 kHz under this part.