![Mobile Radio Direction Finder](https://d27wgn5g4t3wja.cloudfront.net/img/d0437b12-1422-08df-aac4-d0c14ae1535c/326098.png)
Mobile Radio Direction Finder
Doppler Systems offers mobile direction finders for frequencies from 100 to 1000 MHz. The mobile system uses the same DF processor fixed site systems. The mobile antenna utilizes roof mounted summing units and four vertical antennas. Band switching is achieved either by removing one set of antennas and installing another set or we also offer multiple summing unit options that facilitate band switching from within the vehicle.