Humminbird 788ci hd di combo 用户指南
6
Xtreme Depth Sonar
(Xtreme Depth Series™ models only [788ci HD XD])
Your 788ci HD XD Fishing System uses the XD
transducer to provide extreme depth coverage
with DualBeam PLUS™ technology.
transducer to provide extreme depth coverage
with DualBeam PLUS™ technology.
The Xtreme Depth sonar beams can be operated
at two frequencies: 50 kHz (74°) and 200 kHz
(20°). The wide, 50 kHz beam transmits at a low
frequency to provide greater depth coverage, up
to 2500 ft (762 m). The narrow, 200 kHz center
beam transmits at a high frequency to provide
maximum detail at shallower depths.
at two frequencies: 50 kHz (74°) and 200 kHz
(20°). The wide, 50 kHz beam transmits at a low
frequency to provide greater depth coverage, up
to 2500 ft (762 m). The narrow, 200 kHz center
beam transmits at a high frequency to provide
maximum detail at shallower depths.
The DualBeam PLUS™ technology allows you to
view the sonar returns blended together,
separately, or side-by-side (see Sonar Menu
Tab: Beam Select and Views for more
information).
view the sonar returns blended together,
separately, or side-by-side (see Sonar Menu
Tab: Beam Select and Views for more
information).
Depth capability is affected by such factors as
boat speed, wave action, bottom hardness,
water conditions and transducer installation.
boat speed, wave action, bottom hardness,
water conditions and transducer installation.
How Sonar Works