PPO #122730 BSIS / DCA licensed PPO #122730 CA Private Patrol Operator PPO #122730 BSIS / DCA licensed PPO #122730 CA Private Patrol Operator PPO #122730 BSIS / DCA licensed PPO #122730 CA Private Patrol Operator PPO #122730 BSIS / DCA licensed PPO #122730 CA Private Patrol Operator PPO #122730 BSIS / DCA licensed PPO #122730 CA Private Patrol Operator PPO #122730 BSIS / DCA licensed PPO #122730 CA Private Patrol Operator PPO #122730 BSIS / DCA licensed PPO #122730 CA Private Patrol Operator PPO #122730 BSIS / DCA licensed PPO #122730 CA Private Patrol Operator PPO #122730 BSIS / DCA licensed PPO #122730 CA Private Patrol Operator PPO #122730 BSIS / DCA licensed PPO #122730 CA Private Patrol Operator PPO #122730 BSIS / DCA licensed PPO #122730 CA Private Patrol Operator PPO #122730 BSIS / DCA licensed PPO #122730 CA Private Patrol Operator PPO #122730 BSIS / DCA licensed PPO #122730 CA Private Patrol Operator PPO #122730 BSIS / DCA licensed PPO #122730 CA Private Patrol Operator PPO #122730 BSIS / DCA licensed PPO #122730 CA Private Patrol Operator PPO #122730 BSIS / DCA licensed PPO #122730 CA Private Patrol Operator
Summit Force Security Group logoSummit ForceSecurity Group
CallQuote
Encyclopedia entry

Two-Way Radio

A handheld or vehicle-mounted radio that lets officers communicate directly with each other and a dispatcher.

A two-way radio allows an officer to transmit and receive voice communication instantly with other officers, a supervisor, or a dispatch center, typically over a licensed or license-free frequency assigned to the property or the patrol company. Radios remain the primary communication tool for many patrol operations because they work without cellular service and support instant, one-to-many broadcasts.

On a real property, radio range depends on terrain, building materials, and whether a repeater is used to extend coverage across a large campus or multi-building complex; a radio that works fine outdoors may drop out inside a concrete parking structure. Battery life and channel discipline — officers not talking over each other — affect reliability during a busy shift.

Failure modes include dead zones in stairwells or basements, interference from other users on a shared frequency, and a dead battery going unnoticed until an officer needs it in an emergency. Radios also broadcast openly to anyone with a scanner on the same frequency unless encrypted, which matters for sensitive communications.

In a patrol program, the radio is the backbone connecting field officers to a dispatcher or monitoring center, coordinating responses to alarms, duress signals, and routine check-ins, with significant events later documented in writing regardless of what was said over the air.

Related entries

Radio InteroperabilityThe ability of different agencies' or companies' radios to communicate on shared channels during a joint response.Panic / Duress ButtonA fixed or wearable button that silently signals for help when pressed, without triggering an audible alarm on site.GPS Patrol TrackingA system that records an officer's or patrol vehicle's location over time to verify routes and timing.Response TimeHow quickly a patrol officer or standing guard reaches a location after being alerted to an alarm or incident.

Official sources

  1. [1]FCC Land Mobile Radio ServicesFederal Communications Commission

Links point to the publishing agency or the California Legislative Information text. Government pages are reorganized periodically — if a link moves, search the code section or agency name at the official site.

Back to the A–Z encyclopedia

General industry and regulatory usage — not legal advice, and not an endorsement by BSIS, the Department of Consumer Affairs, or any law-enforcement agency. Statutes, regulations, and local ordinances change; verify current text at the official government source or with your attorney.

Reference is free. Coverage is a phone call.

Licensed California PPO #122730 — live dispatch 24/7 across Sacramento, Placer, and the surrounding counties.

1-800-823-5337Get a free quote
Free site assessment

Tell us about your property

Send a few details and a supervisor will walk your site, identify the vulnerable hours, and return a written coverage plan with flat hourly pricing — no obligation.

  • Same-day response on urgent coverage requests
  • Licensed, guard-card verified, uniformed officers
  • GPS-tracked patrol reports delivered every morning
  • Short-term, event, and long-term contracts available