News

Under contract from Apta Services S.R.L., Doppler Systems has successfully delivered and installed its DDF7014 Multichannel VHF Radio Direction Finder at Tabora Airport and Sumbawanga Airport in Tanzania. The installation at Tabora Airport was completed as part of a major airport renovation and improvement project, while Sumbawanga Airport—located in Tanzania’s Rukwa Region—is a newly constructed facility. In both cases, the DDF7014 was selected to support reliable and accurate direction finding for aviation communications. The DDF7014 Read more

We are excited to announce the release of TargetTrack 4, the most advanced and fully featured radio direction-finding software available from Doppler Systems. Designed for users who rely on precision RF geolocation, TargetTrack 4 introduces unmatched accuracy, a modern interface, and powerful tools for radio direction finders, RF emitter geolocation, and signal intelligence operations. A Modern, User-Friendly Tracking Environment TargetTrack 4 offers a clean, intuitive interface that simplifies setup, configuration, and real-time tracking. Bearings from Read more

A question frequently asked by our customers is “How close can I mount a transmit antenna to the direction finding antenna.”  Typically we respond by telling the customer to keep the DF antenna well separated from the transmit antenna.  However, practically all our customers have limited options on siting the direction finder.  With this in mind, we have written a new application note to help our customers determine the effect of a nearby transmitter on Read more

The Federal Communications Commission (FCC) has elected to purchase 20 Doppler Systems fixed site radio direction finders. Operating from 100 – 1000 MHz, these direction finders are being used by FCC enforcement agents to locate unwanted and illegal interference.  Doppler Systems is proud to provide the FCC with our direction finders to assist in the ongoing quest to rid the spectrum of unwanted interference. We appreciate the FCC’s great team and the trust they place Read more

Doppler Systems recently hosted fifteen (15) FCC field agents for a three day training event at our University of Arizona Technology Center offices in Tucson, Arizona.  This training covered all aspects of the assembly, checkout, and operation of our DDF7001 fixed site radio direction finders and our TargetTrack software.  Our on-site equipment provided the agents with hands-on experience in locating transmission sources.  Doppler Systems is proud to partner with the FCC in providing them with Read more

All credit for this article goes to Alan Beresford (author) and the Grampian Online of HNMedia.co.uk. We received permission to post the article in full on our site. The original article can be found here. Training exercise turns real for Buckie lifeboat after distress beacon detected A TRAINING exercise for Buckie’s RNLI volunteer lifeboat crew turned real when a signal from a distress beacon was picked up. The William Blannin and her crew were on a training Read more

The California Office of Emergency Services (CAL OES) deployed mobile Doppler Systems radio direction finders at the 2022 Major League Baseball’s All Star Game. Communications are vital for large events like these where both intentional and unintentional interference can cause disruptions impacting the safety of everyone involved in the event. Doppler Systems provides affordable and quick to deploy radio direction finders allowing public service communications professionals to quickly find and eradicate interference sources. Contact us Read more

The California Office of Emergency Services, in cooperation with the FCC, deployed one Doppler fixed site direction finder and three Doppler mobile direction finders at the Super Bowl. The direction finders were used to find interfering signals to help enforce the frequency allocations given to the various mobile radio users. Doppler Systems is proud to have been a part of Super Bowl LVI