Land Mobile Radio Service

History: Since it’s creation, people quickly realized the value radio had for public safety, railroad, and business use. As there is limited bandwidth but a continued demand for radio frequencies, the FCC had a deadline in 2013 to require all licensees in the 150-174 MHz and 421-512 MHz bands to move to narrowband (12.5 kHz or narrower) technology.

The FCC has been streamlining it’s license process and payment structure, to make it easier to applicants to get their license online.

License Needed: Yes. No test needed. License is for 10 years and applies to every member of your group or business.

Availability: More commonly used than FRS, but also more expensive. Purchase through your local or online radio shop.

Use: Personal or Business

Range: Will vary by obstructions (buildings, trees, or hills), by antenna height, by frequency band (Low VHF, VHF, or UHF), and by transmitting power (1-110 watts depending on the radio). Can use your repeater that is described in your license.

Equipment needed: A Part 90 “Business” radio certified by the FCC. You can check a radios certification in the FCC online database.

Antenna: Attached or Detached

Output: Up to 110 Watts

Modulation: Determined by the Part 90 radio. Typically Narrowband Frequency Modulation (FMN), but any modulation can be added to the license as long as it falls within the narrowband limitation.

Frequencies: There are 16+ non-coordinated shared frequencies for itinerant (temporary) use. For non-itinerant use you must coordinate the frequencies, power, and location of your radios and antenna towers.

Paratus Radio can help you get your Business License for your business or group. Please contact us at for assistance with this.