Installation Instructions
GHP 10V Installation Instructions 15
When connected to optional NMEA 0183-compatible devices, the
GHC 20 uses the following NMEA 0183 sentences.
Receive wpl
gga
grme
gsa
gsv
rmc
bod
bwc
dtm
gll
rmb
vhw
mwv
xte
Transmit hdg
Although all of the conguration is typically completed automatically
through wizard, you can manually adjust any setting (page 12).
NOTE: Depending upon the conguration of the autopilot, certain
settings may not appear.
Speed Source Setup Verify
Tachometer
Allows you to compare
the RPM readings on
the GHC 20 with the
tachometers on the
dashboard of your boat.
Speed Source Setup Planing RPM Allows you to adjust the
RPM reading on the
GHC 20 at the point your
boat transitions from
displacement to planing
speed. If the value does
not match the value on the
GHC 20, use the arrows to
adjust the value.
Speed Source Setup Low RPM
Limit
Allows you to adjust lowest
RPM point of your boat. If
the value does not match
the value on the GHC 20,
use the arrows to adjust the
value.
Speed Source Setup High RPM
Limit
Allows you to adjust the
highest RPM point of your
boat. If the value does not
match the value on the
GHC 20, use the arrows to
adjust the value.
Rudder Gains Low Speed
Gain
Allows you to set the rudder
gain for low speeds.
This setting applies to the
vessel when operating below
planing speed.
If you set this value too
high, the autopilot may
be overactive, attempting
to constantly adjust the
heading at the slightest
deviation. An overactive
autopilot can cause excess
wear and tear on the drive
unit (page 12).
Rudder Gains Low Speed
Counter
Allows you to set the rudder
gain counter-correction for
low speeds.
This setting applies to the
vessel when operating below
planing speed.
If you set this value too
high, the autopilot may
be overactive, attempting
to constantly adjust the
heading at the slightest
deviation. An overactive
autopilot can cause excess
wear and tear on the drive
unit (page 12).
Rudder Gains High Speed
Gain
Allows you to set the rudder
gain for high speeds.
This setting applies to the
vessel when operating
above planing speed.
If you set this value too
high, the autopilot may
be overactive, attempting
to constantly adjust the
heading at the slightest
deviation. An overactive
autopilot can cause excess
wear and tear on the drive
unit (page 12).
Rudder Gains High Speed
Counter
Allows you to set the rudder
gain counter-correction for
high speeds.
This setting applies to the
vessel when operating
above planing speed.
If you set this value too
high, the autopilot may
be overactive, attempting
to constantly adjust the
heading at the slightest
deviation. An overactive
autopilot can cause excess
wear and tear on the drive
unit (page 12).
NMEA Setup NMEA
Checksum
If the connected NMEA
0183 GPS unit incorrectly
calculates checksums, you
may still be able to use
it if you turn this setting
off. When set to off, data
integrity is compromised.