The RT-600/SAR-DF 517 is an advanced wideband radio
direction finder system for airborne applications, capable
of capturing and indicating directions to any source
of an emergency signal on VHF, UHF, all 19 406 MHz
COSPAS-SARSAT frequencies and all 88 maritime channels.
The system can be extended by additional frequency
bands to cover a frequency range from 118 to 470 MHz
at its full stage of extension.