Model	Cable Types	Max. Range	Distance Resolution	Pulse Width Min	Pulse Width Max.
6000	Twisted pair	63700 ft	1 ft	1 msec	330 msec
1205CXA	Coax	19400 m	1 ft	?	?
1270A	Twisted pair, coax	19400 m	0.1 ft	1 msec	1 msec
1550	General	9800 ft	0.9% of range	1 msec	1 msec
3300	Twisted pair	63700 ft	0.5 ft	1 msec	1 msec
6000DSL	Telephone	63700 ft	0.25 ft	1 msec	1 msec
3200	CATV	63700 ft	0.5 ft	1 msec	1 msec