This GPSDO is compatible only with FLEX-8000 series radios.  It is not compatible with FLEX-6000 series radios. This module is factory installable only, it cannot be installed in the field.

FLEX-8400/8600 Extended Transmit Module Required for MARS, Shares or other users who require out of amateur band transmit. A government issued license is required to enable this option. A TURF file...

FlexControl Multi-function Tuning Knob Features:Full time SmartSDR/PowerSDR tuningFully programmable multi-knob and push buttonsMode and Status indicatorsDirect SmartSDR, PowerSDR and DDUtil software...

The FLEX-6500, FLEX-6700 (also the 6400 & 6600) are the first amateur radio products to offer an optional built-in GPS Disciplined Oscillator (GPSDO). The GPSDO plug in module provides a precision 10...