Doppler Systems Logo

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

Doppler Systems LLC

Radio Direction Finders and Direction Finding Systems

Identifying Series 6000 and 6100 Hardware Revision Level

Remove the top cover and look at the logic board. It will match one of the following descriptions.

DDF6102A used in DDF6000A

There is a daughter board marked DDF6112.

U133  is 9.8304 MHz.

U129 (MACH 110) is marked "DOPWFRM VER 1.14".

Return to Firmware Upgrades.

DDF6102B used in DDF6000B and DDF6100B

Stencil in upper left is DDF6102B.

U133 is 9.8304 MHz.

U129 (MACH110) is marked "DOPWFRM VER 1.14".

Return to Firmware Upgrades.

DDF6102C used in DDF6000C and DDF6100C

Stencil in upper left is DDF6102C.

U133  is 9.8304 MHz.

U129 (MACH111) is marked "DOPWFRM1 V2.00"

Return to Firmware Upgrades.

DDF6102D used in DDF6000D, DDF6000d, DDF6100D and DDF6100d

Stencil in upper left is DDF6102D.

U129 (MACH111) is marked "DOPWFRM1 V2.00"

U133 is either 9.8304 or 9.2160 MHz. The 9.8304 MHz oscillator is used in the DDF6000D and the DDF6100D. The 9.2160 MHz oscillator is used in the DDF6000d and DDF6100d.

Return to Firmware Upgrades.

DDF6102E used in DDF6001e, DDF6001f and DDF6002f

Stencil in upper left is DDF6102E.

U124 (MACH211) is marked either WAV2PH V110 or V111. Version 110 is used in DDF6001e. Version 111 is used in DDF6001f and DDF6002f.

U115 is 9.2160 MHz. 

Return to Firmware Upgrades.