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FCC Narrowbanding Mandate

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

 

What will happen?

Wideband LMR systems (i.e., two-way voice radio operating on the 25 kHz channel-widths that

have been the standard for the last few decades) will experience increasing interference as

other radio operators switch to narrowband channels that may overlap older wideband channels.

(Note: interference issues may already be noticeable.)

 

As of January 1, 2011, all new radios sold in the US must be narrowband-capable – thus MY2011 radios/buses may not be able to communicate with wideband LMR systems.

 

As of January 1, 2013, LMR systems still using wideband channels risk:

loss of radio communications

substantial FCC fines

revocation of FCC licenses

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