dual frequency 238 Sounder combines chartplotter and sounder capabilities
in one unit which
installs easily in open cockpit and overhead boxes.
a built-in worldwide
basemap, the GPSMAP 238 Sounder will accept data cards programmed
with GARMIN BlueChart marine
cartography or data from most MapSourceT
238 Sounder is designed to provide precise GPS positioning using
correction data obtained from the Wide Area Augmentation System
(WAAS). GPSMAP 238 Sounder will provide position accuracy to less
than three meters when receiving WAAS corrections and also accepts
RTCM-104 differential corrections.
3000 user waypoints with name and graphic symbol; 50 reversible
routes with 50 waypoints/route
Audible alarms for anchor drag, arrival, off-course, proximity
waypoint and clock
2500 point automatic track log; 15 saved tracks let you
retrace your path in both directions, 500 points/saved track
Position formats include Lat/Lon, UTM, Loran TDs, Maidenhead,
MGRS and user grid
Course and speed filtering
Built-in celestial tables
for sun and moon calculations
7.5"H x 7.7"W x 2.6"D
Remote quad helix receiving antenna, with 30 ft. cable
Transmit frequency: 50/200 kHz (40°/10°)
Transmit power: 500 watts RMS, 4000 watts peak-to-peak
Auto bottom tracking with 2X, 4X zoom levels
Split screen combining both map and sounder data
Simultaneous display of both 50kHz and 200 kHz frequencies
Graphic whiteline for clear image of bottom hardness and
Underwater waypoints to capture position and depth
separates fish from thermoclines and structure
A transducer is required for operation of the GPSMAP 238 Sounder.
A plastic, transom mount transducer with depth and temperature
and a separate speed sensor is supplied with 010-00250-11. If
you wish to use another type of transducer you could purchase
the GPSMAP 238 Sounder without a transducer (010-00250-10) and
pair it with one of GARMIN's range of dual-frequency transducers.
Click here for a list
of compatible transducers.