The Icom IC-F521 professional series mobile radio is available in VHF frequency bands and has 25-50 watts of power with 256 channels.

The Icom F521 is a flexible yet simple design for B&I users meeting the demanding needs of today’s professionals.  The F521 mobile radio has 256 channel capacity and built-in flexible tone signaling, and have conventional to expanded trunking operation capability.

Two Way Direct rates this mobile radio as a Professional Series Mobile Radio with a 4.5-Star Durability Rating based on Military Specification Standards. The MIL-STD-810 series of standards are issued by the United States Army's Developmental Test Command, to specify various environmental tests to simulate conditions that the IC-F521 will encounter in the field.

Comparable mobile radios include:
Motorola: CM200, CM300, XPR4300, XPR4500, XPR4350
Kenwood: TK-7160, TK-8160H
Vertex: VX-4200, VX-5500
Icom: IC-F521 / IC-F621

Applications:
Taxi
Shuttle
Transportation