Doppler Systems legacy products are longer in production. However, we do continue to support these products with customer assistance and repairs. If you need help with any Doppler Systems legacy products, please contact the factory. For information on earlier product see Product Identification and Compatibility of Obsolete Models on our application notes page.

Series	5931	6001	6002
Application	Mobile homing	Fixed site triangulation by networking multiple sites	Mobile homing or triangulation by driving to multiple locations
Processor	DDF5931	DDF6001	DDF6002
Display	DDF5921	included in DDF6001	included in DDF6002
Antennas	DDF5961,2,7 Magnet mount (set of 4)	DDF6092,5,7 Mast mount (8 element array)	DDF5961,2,7 Magnet mount (set of 4)
RF Summer	DDF5980 Magnet mount	included in DDF6092,5,7	DDF5980 Magnet mount
Software (included)	none	SignalTrack	SignalTrack
Accuracy (typical)	5 deg	2 deg	5 deg
Accessories	none	Antenna mounting/stacking hardware Antenna switching unit	GPS, Compass, Power Distribution Unit
Details	Series 5931	Series 6001	Series 6002