Communications



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5.6Channel/Talkgroup Names


Standardized channel/talkgroup names should be stated in widely used terms (for example, OKLAW1 or 8TAC90). Channel/talkgroup numbers corresponding to how a specific radio is programmed should not be used unless the resource cannot display “alpha” characters (for example, “Channel 1” or “Channel A14”). The OKFOG uses standardized channel names established by the National Public Safety Telecommunications Council (NPSTC) and the Association of Public-Safety Communications Officials (APCO) for nationally recognized mutual aid channels. A complete list of standardized channel names can be found in the Standard Channel Nomenclature for the Public Safety Interoperability Channels APCO/NPSTCANS 1.104.1-2010. (See http://apcointl.org/new/commcenter911/documents/APCO-NPSTC-ANS1-104-1web.pdf.).

5.7Priority Levels


Many statewide mutual aid systems are limited to emergency operations, with the exception of tests and drills. When a higher priority use is required, all lower priority use must cease in any area where interference could occur.
Priority levels for statewide mutual aid systems are as follows:
Disaster and extreme emergency operations for mutual aid and interagency operations

Emergency or urgent operations involving imminent safety of life or property

Special event control activities, generally of a preplanned nature and generally involving joint participation of two or more agencies

Drills, tests, and exercises

Single agency secondary communications. OKLAW1, OKFIRE1 and OKLGMA1 may be used for local day-to-day secondary communications. Authorized secondary communications may include: 1) events, 2) training exercises, and 3) on-scene tactical or fireground operations when other channels are not available.

5.8Out-of-Area/Itinerant Mobiles


Agencies maintaining base stations are encouraged to monitor mutual aid channels at all times. Typically, these channels are the only means for personnel traveling outside their normal jurisdiction to obtain assistance or to report traffic collisions, fires or other hazards.

5.9FCC and NTIA Rules and Regulations


Non-federal communications are governed by FCC rules and regulations, Title 47, Code of Federal Regulations, Parts 0-199 (See http://wireless.fcc.gov/rules.html.)
Part 87 Aviation Services

Part 90 Private Land Mobile Radio Services (includes public safety)

Part 95 Personal Radio Services (includes GMRS, FRS, CB, & MURS)

Part 97 Amateur Radio Service


Federal agency communications are governed by NTIA rules and regulations, Title 47, Code of Federal Regulations, Part 300 (See http://www.ntia.doc.gov/osmhome/redbook/redbook.html.)

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6Interoperability Channels Used in Oklahoma


The tables in this section list the shared radio channels identified for interoperability across the state of Oklahoma.

6.1Oklahoma VHF Common Channels


The frequencies in the table below are widely used within Oklahoma and are the primary shared channel resources available to VHF radio users.


Oklahoma VHF Interoperability Channels

Description

Wideband Channel ID

Channel Frequency

(MHz)

CTCSS Tone

Law Enforcement

STATE LAW

155.490*

CSQ

Fire

STATE FIRE

154.130*

CSQ

Public Safety

STATE NET

155.670*

CSQ

EMS

HEARS

155.340*

CSQ

Local Government

STATE LG MA

155.760*

CSQ

Description

Narrowband Channel ID

Channel Frequency

(MHz)

CTCSS Tone

Law Enforcement

OKLAW1

155.4900

CSQ

/156.7


Fire

OKFIRE1

154.1300

CSQ

/156.7


Public Safety

OKNET1

155.6700

CSQ

/156.7


EMS

VMED28

155.3400

CSQ

/156.7


Local Government

OKLGMA1

155.7600

CSQ

/156.7



*The Oklahoma VHF Interoperability Channels listed above must use a 12.5 kHz bandwidth by January 1, 2013. If capacity permits, it is recommended these Oklahoma VHF Interoperability Channels be programmed as both wideband and narrowband in radios. If capacity is limited, the Oklahoma VHF Interoperability Channels should be programmed as wideband and reprogrammed for narrowband emission as part of a communications plan to transition local frequencies to narrowband.
Default operation should be CSQ receive, CTCSS 156.7 Hz (5A) transmit. If the user can enable/disable without reprogramming the radio, the indicated CTCSS tone should also be programmed for receive, and the user instructed how and when to enable/disable.





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