Doppler Systems Products

Doppler Systems offers radio direction finders for both mobile and fixed site applications.  Our fixed site systems cover 115 – 1000 MHz and our mobile systems cover 100 – 1000 MHz.  Each system contains of a DF processor, a set of antennas, and a receiver.  Additionally we offer a number of accessories to:

  • enable geolocation using multiple sites.
  • provide self testing.
  • furnish and distribute power.

Software furnished with our direction finders enables users to display bearing lines on map based displays and accurately locate RF sources.  All of our direction finders can be networked and remotely operated so that a wide area of coverage is achieved with minimal operational manpower.

Our products can be purchased as components for integration by your technical staff or as packaged turn-key systems containing everything necessary to assemble and operate a radio direction finding system.

The table below outlines the function and the hardware, and software necessary for the direction finder.

 Mobile HomingFixed Site GeolocationMobile Geolocation
DF MethodSynthetic DopplerSynthetic DopplerSynthetic Doppler
Frequency Range100 – 1000 MHz115 – 1000 MHz100 – 1000 MHz
Accuracy (deg)
Resolution (deg)
DF ProcessorDDF7001DDF7001DDF7001
DisplayPC running MPT User Interface or Android AppTargetTrack or SignalTrackTargetTrack or SignalTrack
Antennas4 roof mounted verticals4 or 8 element mast mounted array4 roof mounted verticals
Software (included)MPT User InterfaceTargetTrack/SignalTrackTargetTrack/SignalTrack
AccessoriesnoneSelf-Test Generator
Power Supply
Yaw Rate Sensor
Power Distributor

Doppler can also customize our products for specific applications. We have developed a number of custom packages as well as custom software to support our customers’ needs. Contact us to discuss your particular application.