844-812-7393 sales@polarisRDF.com





Polaris RDF is an intelligent radio direction finder manufacturing company that offers radio detection finders (RDF) for search & rescue, law enforcement, military, and other government organizations. We are locally owned and operated in Dana Point, California.

Our radio detection finders send electric waves that can penetrate fog and can be transmitted over a larger distance than light and sound waves. This allows radio detection finders to identify where the signal is being transmitted bearing an accuracy of 2.5-5 degrees on the GPS locating map. Polaris RDF can supply government organizations with RDF products that have been integrated with Android technology.

121.5 MHz & 406 MHz Beacons

121.5 MHz beacons are ground station dependent for civilians, also referred to as an International Air Distress signal. The 121.5 MHz frequency detector was designed to assist first responders to locate the distress signal quickly and efficiently for hikers, skiers, hunters, and the like. With global coverage, Polaris 406 MHz beacons send out a satellite transmission that is a digital, coded signal. The satellites then process the data to determine the location of the transmission.

FCC Synopsis

On November 9, 2018, the FCC released their FOURTH REPORT AND ORDER on the eventual transition from the existing 121.1 MHz Emergency Locator Transmitter (ELT) to a newer, 406 MHz version. This long document boils down to this: 406 MHz ELT’s are coming, butexisting 121.5 MHz ELTs may still be used until November 6, 2026.  Read the FCC Synopsis HERE.

Community Grant

For all organizations interested in purchasing a 121.5 radio direction finder, Walmart offers your organization the ability to apply for a Community Grant. Organizations must submit an online application to be considered for funding.  The 2018 application grant cycle begins on Jan. 1, 2018 and ends on Dec. 31, 2018. For more details and information on how to apply for a community grant visit our Grant Page HERE.


No longer do search teams have to use a compass and map to determine the location of the transmitting beacon. The Polaris RDF radio direction finding software is a sophisticated field tested and hardened radio detection device using a GPS locating map for locating potential targets utilizing radio based 121.5 and 406 emergency beacons.

Android Phone Based Software

Our software for RDF is based off of the use of the android phone. Android phones are advantageous for our software system because of its effectiveness and simplicity.

Handheld or Drone Mounted Options

With handheld or drone mounted options, the RDF device is an easy-to-use, mobile system. Because of the mobility of the radio direction finder, it allows Search & Rescue, Law Enforcement, and Military teams to ensure quicker response times.

GPS Location Mapping

Polaris RDF Android software system is a sophisticated, field tested, hardened device that utilizes radio-based emergency beacons using the GPS locating mapping system.

Network Capable

By using your local network, our software is capable of accomplishing the emergency tasks your government agency or organization requires in a time efficient manner.

10-Hr Battery Life (AA Batteries)

Our RDF system can last up to 10 hours on a pair of AA batteries.

We are a radio direction finding manufacturing company with a professional and innovative approach to assist your department with its RDF needs. Please call 1-844-812-7393 to speak with an expert about any inquiry regarding our RDF products. If you’d like to learn more about the Polaris 121 download our brochure.