The digital KFS 586A serves as the control/display unit for the KDF 806 Automatic Direction Finder (ADF). It boasts 7-segment gas discharge readouts for greater reliability and "ACTIVE" and "STANDBY" frequency displays. The display brightness self-adjusts with automatic dimming circuits, and the flip-flop transfer button reduces pilot workload.
The following options are available with the KFS 586A:
Gray or black face plates
5, 14, 28, or 115 volt lighting
Choice of a standard (transparent) or diffused (looks dark when the unit is off) lens
Night vision display for use with night vision goggles, to keep the display from blinding the pilot
Combination of ON/OFF/MODE/beat frequency oscillation (BFO)/VOLUME selections. Use BFO during overseas travel to fill in the blanks with their automatic direction finder signal.