Special
Publication

Migration from 2-GHz to 6.5 GHz...
What is the impact for Your System?

The FCC has proposed reallocating 220 MHz of 2-GHz terrestrial
microwave spectrum. This article explains the technical issues and
helps you to plan your move for minimum cost and aggravation.

Craig M. Skarpiak, Manager, Applications Engineering, Terrestrial Microwave Antenna Systems
Ed Bachner, Business Unit Manager, System Services
Joseph J. Ulaszek, Systems Engineer, Telecommunications

Andrew Corporation


Users of existing 2-GHz services may be forced to move
operation to a higher frequency band according to a
proposal of the Federal Communication Commission
(FCC). FCC Docket 92-9 proposes reallocation of 220
MHz of spectrum, between 1890 MHz and 2200 MHz,
for Emerging Technologies. Many existing Common
Carrier and Private Operational Fixed Services (CFR 47,
Parts 21 and 94 Services) may have to migrate to a
higher frequency band.

The proposed migration raises a variety of questions for
operations managers of existing 2-GHz services.
What issues do I need to consider when changing
frequency bands?
Can our system be migrated and how?
Can we use any existing equipment?
Does operation in the higher frequency band raise
additional maintenance issues?


This article answers these questions and more. Section
1 discusses the technical issues involved in migration of
an existing private 1850 to 1990 MHz (2 GHz) system
to the 6525-6875 MHz (6.5 GHz) band. Section 2
discusses site replacement and equipment re-use possi-
bilities, including maintaining operation of your present
system during new system installation.
Andrew Corporation
10500 W. 153rd Street Orland Park, IL U.S.A. 60462

PR-20-01 12 March 1993
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