Who is Affected?
The FCC Narrowbanding rules affect all
operators of land mobile radios (LMR), that
use channels between:
-
150 and 174 MHz
-
421 and 512 MHz
Deadlines
To phase in the migration dealine of January
1, 2013, the FCC has established interim
deadlines.
The first important deadline is
January 1, 2011, after which:
-
The FCC will not grant applications for
new voice operations or applications to
expand the authorized contour of
existing stations that use 25 kHz
channels. Only narrowband authorizations
will be granted.
-
The FCC will prohibit manufacture or
importation of new equipment that
operates on 25 kHz channels. This will
reduce the availability of new equipment
for legacy radio systems and will affect
how agencies maintain and upgrade their
older systems.
-
New equipment submitted for FCC
type-acceptance must be 6.25/6.25 (e)
kHz.
-
New system applications must be 12.5 kHz
or less.
-
No 25 kHz system expansion will be
permitted.
-
MOTOTRBO™
meets this requirement.
January 1, 2013
-
All existing licenses must operate on
channels with a bandwidth of 12.5 kHz or
less (narrowband). Failure to comply
with the January 1, 2013 deadline
results in cancellation of license.
-
I/B and PS 150-512 MHz incumbents must
migrate to 12.5/12.5 kHz (e) or less.
-
It is unclear what happens to licensed
25 kHz systems after this date.
Land Mobile Radios Systems still using
wideband channels as of January 1, 2013 risk
the following:
-
Loss of Radio Communication
-
Substantial FCC Fines
-
Revocation of FCC Licenses
Planning the Move to Narrowband
LMR system operators (both public safety
and nonpublic safety) need to agressively
develop a strategy to meet narrowband
deadlines to avoice cancellation of existing
wideband FCC authorizations. Although the
migration deadline may seem far off, the
long lead time and interim deadlines make it
necessary for you to plan well in advance.
Assess Current Equipment and Start
Planning
To prepare for the migration, organizations
should start assessing their radio systems
and planning for replacements or upgrades.
They should inventory their current
equipment to ascertain what can be converted
to 12.5 kHz and what will need to be
replaced before January 1, 2013. Most new
equipment has the capability for both 25 kHz
and 12 kHz operation because any VHF/UHF
radio equipment accepted by the FCC after
February 14, 1997, had to have 12.5 kHz
capability. The 2.5 kHz narrowband equipment
is available in both conventional analog FM
and digital formats (such as Project 25), so
narrowband conventional FM systems will be
compliant. Local governments should develop
contingency plans to accomodate system
changes for both public safety and nonpublic
safety systems.
Obtain New or Modified LIcenses
To move to narrowband operations,
organizations must apply for new frequencies
or modify existing licenses. An organization
that is licensed for a 25 Khz-wide channel
is not guaranteed two 12.5 kHz channels.
Licensees will have to justify to the FCC
why they need additional channels.
Consideration of applications for new
narrowband licenses will follow the same
process as a new license application. As
organizations migrate to narrowband
operation, however, the pool of available
frequencies will increase.
Contact Sharp
Communication for more information and
assistance. |