Web Content Viewer
Colorful MARCS Logo next to a firefighter and police person with a radio

Multi-Agency Radio Communication System

MARCS Mission

MARCS (Multi-Agency Radio Communication System) is dedicated to providing Ohio's first responders and public safety providers with state-of-the-art wireless digital communications, and to promote interoperability, in order to save lives and maximize effectiveness in both normal operations and emergency situations.


MARCS is a 700/800 MHz radio and data network that utilizes state-of-the art trunked technology to provide statewide interoperability in digital clarity to its subscribers throughout Ohio and a 10 mile radius outside of Ohio.  The MARCS system provides statewide, secure, reliable public service wireless communication for public safety and first responders.

The MARCS development contract required 97.5% mobile voice and data in street coverage.  99.71% aggregate voice coverage was realized and 98.13% aggregate data coverage was achieved.  This allows maximum statewide interoperability and enhanced safety and protection for public safety service providers through secure digital transmissions.

The MARCS network operates on three system components:

  • Mobile Voice - operating on the 700/800 MHz digital trunked technology
  • Computer Aided Dispatch (CAD) - providing GPS-based vehicle location, resource recommendation and GGM display
  • Mobile Data - CAD updates, Records Management, GPS-Based vehicle location, LEADS inquiries

There are currently over 140,000 voice units and over 1,800 mobile data units on the MARCS system with more than 3,000 public safety/public service agencies statewide.  This includes local, state and federal agencies.


If your organization is not a state agency and wishes to become a MARCS subscriber, a fully executed MARCS Service Subscription Agreement between the subscriber and MARCS must be on file. The MARCS staff will work with the subscriber to get their equipment programmed, activated and deployed in order to reach go-live.

Subscriber Processes

Follow below instructions according to subscriber type (i.e. new or existing)

New Subscribers

Step 1:  Review MARCS  Services and Rates

Step 2:  Review MARCS  Terms and Conditions

Step 3:  Submit  MARCS   Agreement Form

Download Adobe Reader

Step 4:  Submit MARCS  Devices Form

Note: This Excel file has two separate worksheets that need to be completed.

For questions about becoming a MARCS   Subscriber, email: DAS-MARCS.Admin@das.ohio.gov.

Existing Subscribers

Are you adding more devices to your existing account with MARCS?   Devices Form

Are you transferring activated devices to another subscriber, or have you received activated devices from another subscriber? -Equipment Transfer Receipt Form

Do you need to update your contact or billing information? - Subscriber Information Update

Miscellaneous Forms and Documents

Overview Manual -  Service Subscription Guidance

Shared Talk Group - MOU Template  Word Form 


Policies related to the Ohio Multi-Agency Radio Communication System (MARCS) can be find through the Policy Finder.

Information and Resources

Tower on Wheels

MARCS has three (3) Tower on Wheels (TOWs) that can be requested for incidents within Ohio requiring interoperable communications.  The TOWs are used to supplement coverage and/or to add capacity to an area where an emergency or event is occurring.  The MARCS TOWs are deployed to your request by MARCS staff and are self-sufficient for 48 to 72 hours.

Included in the deployment is at least two members of the MARCS staff, a towing vehicle, 109 gallons of diesel fuel, and related equipment including the TOW itself.  The TOW includes an 80 foot tower, grounding, 20KW three phase diesel generator, electrical cables for direct wiring, cache radios, extra radio batteries, and bank chargers. MARCS also has a towable generator that is normally dispatched as a backup for the generator on the TOW.  Once the TOW arrives on your incident, usually within 30 minutes to one hour the TOW is operational and ready for use.  The TOWs are deployed on a first come first served basis.  The TOWs can be used for large events, exercises, or any emergency situation.  A TOW can be requested by calling the MARCS Helpdesk 24/7 at 866-646-2727.

Demonstrations are also welcomed.  Any questions or concerns can be directed to Dick Miller at dick.miller@das.ohio.gov, Field Operations Manager for MARCS.

Tower Map

Tower map

Loaner Radios and Accessories

MARCS has 360 Public Safety portable radios and accessories that are available for loan. Qualifying types of loans include public safety agencies, universities, not-for-profit agencies, demo/test for potential new customers, loans to vendors, and events where public safety communications are required. Requests for use of cache radios and other MARCS equipment must be made to the MARCS Helpdesk at 866-646-2727 and entered in the request calendar. MARCS staff will facilitate the request on behalf of the customer.

The inventory manager or designees who distributes devices shall complete an Equipment Receipt form. In addition to Serial Number, Radio ID, Device type, Model Type, and any accessories, information required to initiate the loan are: dates of delivery/pick up and return, equipment required, how many, entity name, customer contact name and detail, and name of MARCS person responsible for delivery and pick up.

This equipment is State of Ohio owned and must be safeguarded at all times. If lost or stolen it must be reported immediately to MARCS Helpdesk at 866-646-2727. The borrower is responsible for replacement of all equipment and accessories.

Key Request Process

Key Request Process

  1. Contact MARCS Admin at DAS-MARCS.Admin@das.ohio.gov. to be vetted for a key.  In the e-mail, state the make and models of the radios, number of keys and type of keys (full or clone) that are being requested.  All requests will be analyzed by MARCS management.
  2. MARCS Admin will notify the requester as to the decision of MARCS management.  
  3. The requester must contact the County’s Point of Contact for MARCS System Keys for authorization to add their keys to the existing key agreement between MARCS and the County.  The key agreement signatory must e-mail DAS-MARCS.Admin@das.ohio.gov with their approval before keys will be programmed
  4. If approved by the County’s key agreement holder, the requester will order the keys for the type of radio through their preferred radio vendor.
  5. Once the requester receives the keys from the manufacturer, the requester will send the keys for programming and a return address to:

Attn:  System Key Programming
4200 Surface Road
Columbus, OH  43228

  1. Once programmed, keys will be returned to the County key agreement holder’s physical address with the requesting agency’s information in an ATTN: line in the address.  MARCS Admin will also e-mail both the requester and the key agreement holder tracking information on the key package.  MARCS will not send keys to a PO Box or personal mailbox.
  2. MARCS will send the County Key Agreement Holder a new Addendum A to the key agreement listing all the MARCS keys in the county with the new keys added. The agreement holder will verify the inventory, sign and date, scan and e-mail Addendum A back to DAS-MARCS.Admin@das.ohio.gov
  3. For the complete text of MPP 14, click here.

MARCS Flyer and Brochure

One Page Flyer

Tri-Fold Brochure

MARCS Steering Committee

Meeting Dates and Information:

Date:   Thursday, December  16, 2021
Time:   2:30  PM
Location:  Microsoft Teams

Who maintains MARCS subscriber Equipment?

The subscriber is responsible for their own radio equipment maintenance after purchase.


Helpdesk and NOC

MARCS has a Helpdesk and Network Operations Center staffed 24 hours a day, 7 days a week, 365 days a year. These Tier 1 Support Agents facilitate customer calls or inquiries as well as monitor all 300 plus tower sites on the network, their data connectivity, radio equipment, and site environment such as Heating/Ventilation/Air Conditioning, Commercial Power, Uninterruptable Power Supplies, and Backup Generators.  

Agents also can facilitate Computer Aided Dispatch (CAD) and Mobile password resets for Premier One users and perform device unlocks.

The MARCS Helpdesk can also schedule and arrange use of three Tower On Wheels (TOWS) and a cache of over 360 Public Safety portable radios and accessories. For more information please visit our Information and Resources page.

We can be contacted via phone at 866-646-2727, Option 2, or on any MARCS radio via the XHELPDESK talkgroup located in the statewide portion of all subscriber radio templates throughout the State of Ohio, or by emailing das.marcsnoc@das.ohio.gov.