posted 09-16-2011 02:29 PM ET (US)
Jim,The following pertains to the X-4:
Display- High-contrast Film Super Twist LCD, 3.5 inch diagonal viewing area.
Resolution- 240 pixels (vert) x 160 pixels (horz), 38,400 total pixels.
Current Drain- 170 ma backlight off; 240 ma light on.
Frequency- 200kHz.
Transducer- Skimmer, 20 degree cone angle, operates at up to 70 mph.
Transmitter- 800 watts peak-to-peak power; 100 watts RMS power (typical).
Depth capability- 600 feet.
Note: The display on my X-4 includes digital readouts of depth, water temperature, and battery voltage. While underway the voltage indication was 14.5 volts. With the engine shut off the indication was 12.7 volts.
I believe complete specifications and an owner's manual are available at Lowrance.com.
Butch