Garmin GHP 20, Installation Instructions Manual

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16 GHP 20 Installation Instructions
nMEa 0183 Information
When connected to optional NMEA 0183-compatible devices, the
GHC 10 uses the following NMEA 0183 sentences.
type Sentence
Receive wpl
gga
grme
gsa
gsv
rmc
bod
bwc
dtm
gll
rmb
vhw
mwv
xte
Transmit hdg
GHP 20 Configuration Settings
Although all of the configuration is typically completed automatically
through the wizard, you can manually adjust any setting ( page 13 ).
NOTE
: Depending upon the configuration of the autopilot, certain
settings may not appear.
Category Setting Description
Speed Source Setup Verify
Tachometer
Allows you to compare the
RPM readings on the GHC
10 with the tachometers on
the dashboard of your boat.
Speed Source Setup Planing RPM Allows you to adjust the
RPM reading on the
GHC 10 at the point your
boat transitions from
displacement to planing
speed. If the value does not
match the value on the GHC
10, 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 10,
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
10, use the arrows to adjust
the value.
Category Setting Description
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.
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 low,
the autopilot may overshoot
the desired heading on
turns. If you set this value
too high, the autopilot may
be slow to complete turns.
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.
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 low,
the autopilot may overshoot
the desired heading on
turns. If you set this value
too high, the autopilot may
be slow to complete turns.
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.
NMEA Setup Reversed XTE If the connected NMEA 0183
GPS unit sends the incorrect
steering direction with the
cross track error signal.
You can use this setting
to correct the steering
direction.