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ON SCREEN SWITCHES
DATA FROM '
HEAD
'
to display data from the connected sonar head and/or echo
sounder
DATA FROM '
FILE
'
to display data from a previously recorded '
.852
' Sonar
file.
Hold
to hold or freeze the display.
Rev
to reverse the current scanning direction of the sonar head.
Available only when DATA FROM '
HEAD
' is active.
TrackBar
to re-position the file pointer during file playback.
Available only when DATA FROM '
FILE
' is active.
Plot Speed
to adjust plotting speed during file playback.
Available only when DATA FROM '
FILE
' is active.
The following switches are available only when DATA FROM '
HEAD
' is active:
Range
to change the sonar operating range. Ranges available are:
5m (15ft), 10m (30ft), 20m (60ft), 30m (90ft),
40m (120ft) and 50m (150ft)
Mode
to change the sonar display mode. Modes available are:
Sector, Polar and Sidescan.
Start Gain
to change the starting gain of the sonar head. Increase to
get higher return levels, decrease to get lower return
levels. The Start Gain can be adjusted from 0dB to 40dB
in 1dB increments.
Speed
to change the stepping speed of the sonar. Speeds
available are:
Normal (3 deg/step) and Fast (6 deg/step)
Sector
to change the sector size (sweep angle).
Sector Mode (0 to 180 degrees in 18 degree increments)
Polar Mode (0 to 360 degrees in 18 degree increments)
Two hot swap buttons are available for changing the
sector size from 90 to 180 degrees in Sector Mode or from
90 to 360 degrees in Polar Mode.
