Doppler Systems Products

Doppler Systems offers radio direction finding products for both mobile and fixed site applications.  We carry fixed site systems which cover 115 – 1000 MHz and mobile systems cover 100 – 1000 MHz.  Each system contains a direction finding processor, a summing unit and 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 maps 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.

In addition, our direction finding products can be purchased as components for integration by your technical staff. You can also purchase packaged turn-key systems containing everything necessary to assemble and operate a radio direction finding system.

The table below outlines the function of our direction finding products. In addition, it lists 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 verticals4-8 element mast mounted array4 roof mounted verticals
Software (included)MPT User InterfaceTargetTrack/SignalTrackTargetTrack/SignalTrack
AccessoriesnoneSelf-Test Generator
Power Supply
Yaw Rate Sensor
Power Distributor

Custom Direction Finding Products

Doppler Systems also customizes products for specific applications. For example, we have developed a number of custom packages and custom software to support our clients’ needs. Contact us to discuss your particular application.