Frugal Illinois does not own the Starcom21® 7/800 MHz statewide Astro25® trunking system- they lease service from Motorola Mobility, Inc., similar to a cellular service. Depending on how you do the accounting, Illinois pays somewhere between $15 and $22 million a year in service fees, plus the entire cost of purchasing and installing their own mobile/portable radios.
99.99% of Starcom21® mobile/portable equipment is Motorola®. The majority are XTL/XTS’s, and now some APX radios with multi-band capability. All radios have the statewide interoperability template and the national 7/800 MHz interoperability channels. With 7/800-only XTL/XTS radios communication is limited to other 7/800 agencies. IF the trooper has a rare and properly programmed APX multi-band radio direct communication with VHF/UHF agencies is possible.
Part of the contract used to be that non-Motorola® equipment could only be used on Starcom21® after paying a per-radio 'inspection and certification fee'. That fee is nearly equal to the cost of the radio. I do not know if this is part of the present contract or negotiation. Because of additional fees, the total cost of “Off-Brand” radios is artificially high and they are rare. Even though it is technically APCO-P25 compliant Motorola®'s Astro25® trunking software is proprietary, and not economically available to most other manufacturers. Other states (Missouri's MOSWIN for example) own their towers and infrastructure, and allow suitable radios from competative manufacturers to be used.
In addition to the ISP, many Illinois state agencies and Amren® use the Starcom21® system, with the service and equipment costs coming from their own budgets. Amren®'s fees are a private commercial transaction, supposedly adjusted by the joint use of existing Amren® towers and frequencies for Starcom21® coverage.
Counties and Cities using Starcom21® pay their own per-radio user fees. Motorola® can negotiate rates with individual agencies, a normal situation where limited geographical use is desired, or the agency has infrastructure or frequencies that enhance Starcom21® coverage. The airtime fee for interoperability-only radios is $100 per year (presently paid by IEMA/ILEAS/et al). For other radios Motorola® collects useage fees starting at around $300 per year per radio, and upwards of $636 per year per radio depending on the coverage area. That is for each radio every year and includes all mobiles and portables. The non-bid, no-compete sole source state contract renewal originally had even higher useage fees.
Even though most (not all) downstate Law/Fire/EMS agencies still use analog VHF, ISP ceased supporting most of their VHF Syntors® years ago. VHF Syntors® are non-narrowband and are now completely removed from service. Low-band has been gone for a long time.
ISP recently installed Icom F5021 VHF radios in many downstate patrol cars. If you include the field tech time to install them, their one-time total cost is about $500 per car. For the first time in many years troopers can communicate directly with Law/Fire/EMS agancies, and are in fact doing so.