77
Specifications
Depth Capability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1500 ft (450 m)
Power Output . . . . . . . . . . . . 500 Watts (RMS), 4000 Watts (Peak to Peak)
Operating Frequency . . . . . . . . . . . 200 kHz and 83 kHz DualBeam PLUS™
Area of Coverage. . . . . . . . . . . . . . . . . . . . . . . . . . . 60° @ -10 dB in 83 kHz
20° @ -10 dB in 200 kHz
Target Separation. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 ½ Inches (63.5 mm)
Power Requirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20 VDC
LCD Matrix. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320 V x 240 H (747c)
640 V x 480 H (777c2)
Transducer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . XHS-9-20-T
Transducer Cable Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 ft (6 m)
Current Draw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 650 mA (747c)
700 mA (777c2)
NOTE: Humminbird® verifies maximum stated depth in saltwater conditions, but actual depth
performance may vary due to transducer installation, water type, thermal layers, bottom
composition and slope.
NOTE: Product specifications and features are subject to change without notice.
531526-1_A - 747c_&_777c2_Man_Eng.qxp 10/2/2006 1:42 AM Page 82