MARC Repeater Directory

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Repeater Directory access is provided through four indexes:

City County Quadrant Frequency

Go HERE  for more information on
directory entries recorded in red italics.

How the Repeater Directory can be updated.

A list of directory notations.

City Index

A | B | C | D | E | F | G | H |  I  | J | K | L | M | N

O | P | Q | R | S | T | U | V | W | X | Y | Z

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County Index

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Alcona	Alger	Allegan	Alpena	Antrim	Arenac
Barry	Bay	Benzie	Berrien	Branch	Calhoun
Cass	Charlevoix	Cheboygan	Clare	Clinton	Crawford
Eaton	Emmet	Genesee	Gladwin	Grand Traverse	Gratiot
Hillsdale	Huron	Ingham	Ionia	Iosco	Isabella
Jackson	Kalamazoo	Kalkaska	Kent	Lake	Lapeer
Leelanau	Lenawee	Livingston	Macomb	Manistee	Mason
Mecosta	Midland	Missaukee	Monroe	Montcalm	Montmorency
Muskegon	Newaygo	Oakland	Oceana	Ogemaw	Osceola
Oscoda	Otsego	Ottawa	Presque Isle	Roscommon	Saginaw
Sanilac	Shiawassee	St Clair	St Joseph	Tuscola	Van Buren
Washtenaw	Wayne	Wexford

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Frequency Index

29 MHz	50 MHz	144 MHz	220 MHz
420 MHz	902 MHz	1240 MHz	2390 MHz

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Quadrant Index

NW North of M-46 West of I-75 / US-27 / US-127	NE North of M-46 East of I-75 / US-27 / US-127
SW South of M-46 West of I-75 / US-27 / US-127	SE South of M-46 East of I-75 / US-27 / US-127

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Repeater Directory Notations

		System Access (in Ac Column)
O	-	Open (usually carrier-operated)
C	-	Closed system
		Repeater Emissions (in Features Column)
		FM – (FM/Wide or FM/Narrow)
		Digital Mobile Radio
		DStar
		FUSION
		NXDN Mixed
		NXDN Digital
		APCO25 P1
		APCO25 P2
		Multi-Mode (three or more of the modes above)
		Amateur TV Analog
		Amateur TV Digital
		Shared Non-Protected Pair (SNPR)
		Access Tone or Code Requirements (in PL Column)
CC/##	-	DMR Color Code
In ###.#	-	Input CTCSS encode tone (specified) required for access
Out ###.#	-	Output CTCSS encode tone (specified) required for access
DCS/###	-	Digital Coded Squelch code required for access
NAC/####		P25 Network Access Code
RAN/###		NDXN Radio Access Number
DTMF/####		Dual-Tone Multi-Frequency access code
		Other Features (in Features Column)
FM/Wide		Wide Bandwidth
FM/Narrow		Narrow Bandwidth
D*/Voice		DStar Voice
D*/Data		DStar Data
E/#######	-	Echolink node
I/#######	-	IRLP node
A/#######	-	AllStar node
L/#####.####	-	Link Frequency
R	-	AUXCOM affiliated
S	-	ARES affiliated
WX	-	Weather net or weather
WWW.url.org		Club or Organization URL

How Repeater Directory Updates Are Made

Updates to the MARC Repeater Directory are made by the organization sponsoring the repeater.

Repeater sponsors designate the individual responsible for communicating updates to MARC (usually the repeater trustee).

Updates are made by submitting an updated TDS / Coordination / Update / Review Form

You can help MARC improve the accuracy of the Repeater Directory.

If information in the repeater directory needs to be updated, please contact the sponsoring organizaton or repeater trustee and ask them to submit an updated TDS form to MARC.

Periodically, MARC will refresh the Repeater Directory with the latest information posted to the MARC repeater data base.

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Delinquent Repeater Directory Entries

Trustees associated with entries appearing in RED ITALICS need to submit a TDS update for those entries.  These entries are considered to be in a delinquent reporting status.  All repeaters must be updated at least every two (2) years, or face possible loss of coordinated status.

NOTE:  Repeaters with a * preceding the call sign are being prepared for De-Coordination.

Final submissions to the ARRL Directory will only contain current TDS data that is complete and has been processed and approved by MARC.   The only exeption will be repeaters that have a current TDS on file with MARC, that are waiting to be posted to the MARC database due to administrative procedures.   These entries will remain in red italics until their last TDS Date has been updated in the database.

The update reporting deadline for having your repeater(s) listed in the ARRL Repeater Directory is December 31 of each year.  This does not mean you have to update every year.  It means your updates must be current, or less than two years old, in order to be listed in the ARRL Repeater Directory.  Updates received after December 31 may or may not be included in the Repeater Directory the following year.

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