Raymarine Marine GPS System User Manual page 131

RayTech Navigator User's Guide
Selecting the Power Setting
The POWER MODE Functionbar button allows adjustment of the
transducer signal. When AUTO is selected (default), the Fishfinder
automatically determines the power setting based on the current depth.
LO power (10 W) is used in depth ranges less than 20 feet and HI
power (600 or 1000 W, depending on your transducer) is selected for
depths greater than 20 feet. When AUTO is selected the current
automatic power setting is indicated in the top status line by an L
(low) or H (high). If you want to manually adjust the power to suit
current conditions, you can select either LO or HI power. The power
setting is retained when the unit is powered off.
To change the power setting:
Selecting the Frequency
The hsb
frequencies used are 50 kHz and 200 kHz. The Fishfinder
automatically selects the appropriate frequency. Alternatively, you
can manually select either frequency, or both frequencies
simultaneously. Each is suitable for a particular purpose:
50 kHz Frequency – When using this frequency, the transducer scans a
wide area. The 50 kHz signal penetrates water well, and is good for
use in deep water.
200 kHz Frequency – When using this frequency, the transducer scans
a narrower area, but produces a more detailed view. The 200 kHz
signal is good for finding fish near the bottom or close together, and is
better suited for use in shallow water.
5-40
1. On the Pathfinder Panel, click
associated Functionbar buttons.
2. Click
Power Mode
3. Click to choose between
The selected setting is highlighted.
4. Click ,
ENTER CLEAR
Functionbar menu.
2
Series Fishfinders use dual frequency sonar. The two
MULTI to display the
. A drop-down menu appears.
, , or
AUTO LOW
, or to return to the top-level
BACK
power.
HIGH