Doppler Systems Logo

office (480) 488-9755
fax (480) 488-1295

Doppler Systems LLC

Radio Direction Finders and Direction Finding Systems

Doppler Radio Direction Finders and Direction Finding Equipment

Legacy Products

The products on this page are no longer in production.  We do continue to support these products with customer assistance and repairs.  Contact the factory if you have need help with any of these products.

Series 5900 6000 6100
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 5900 Series 6000 Series 6100

Receivers

Our radio direction finders can be used with an narrow band FM receiver. The only connections required are to the antenna input and the external speaker output. However, if you want to display the signal strength, a connection is needed to the receiver's RSSI output. Also, if you want to control the receiver using our software programs SignalTrack, AutoTrack or BearingTrack, a compatible serial port is required. The following receivers are recommended when these functions are required.


Receiver Calibration RSSI Serial Control Cable Set
ICOM R8500 Default Bearing & RSSI
calibration tables stored in
DDF5931, DDF6001 & DDF6002
AGC jack on rear panel CIV jack on rear panel DDF6315
AOR AR5000 Default Bearing & RSSI
calibration tables stored in
DDF6001 & DDF6002
Special connector on
rear panel
RS232 connector on
rear panel
DDF6316
AOR AR8600 Default Bearing & RSSI
calibration tables stored in
DDF6001 & DDF6002
DIN connector on rear
panel
RS232 connector on
rear panel
DDF6317
ICOM R1500 & R2500 Default Bearing & RSSI
calibration tables stored in
 DDF6001 & DDF6002
Requires PC USB connector on
rear panel
TBD
AOR AR5001D Customer is required to calibrate
to a source at a know location
Not supported RS232 connector on
rear panel
TBD

Note: The frequency control functions in the SignalTrack application requires the use of one of these receivers.  Other receivers may be used however, they will need to be manually tuned.  Therefore, receivers other than the ones listed above are not recommended for networked applications.

Custom Products

We also make custom enclosures for both mobile antennas and for complete DF packages. For more details refer to our Custom Products page.