RADAR
SPERRY NORTHROP	FURUNO	JRC	LITTON MARINE	CONSILIUM
RAYTHEON	KELVIN HUGHES	KODEN	TOKIMEC	ANRITSU
SAM

GYRO COMPASS
FURUNO	ANRITSU	ANSCHUTZ	RAYTHEON	TOKIMEC
S.G.BROWN	SPERRY	MICROTECHNICA

SVDR
JRC	FURUNO	HEADWAY	CONSILIUM	KELVIN HUGHESC
TRANSAS	RUTTER	NETWAVE	MARRIS	COMAS
BROADGATE

AUTOPILOT
HOKUSHINE	TOKYO KEIKI	YOKOGAWA	COMNAV	C PLATH
DECCA	SPERRY

ECHO SOUNDER
ATLAS	FURUNO	JRC	SIMRAD	RAYTHEON
MARCONI	SKIPPER

GPS
KODEN	EAGLE	FURUNO	JRC	RAYTHEON

NAVTEX
FURUNO	ANRITSU	ALDEN	JRC	SARACOM
LOKATA