Garmin Gps Plus 2 Manual

							85
Specifications
The GPS II
+is constructed of high-quality materials and should not require user maintenance. If your unit ever
needs repair, please take it to an authorized GARMIN service center. The GPS II+has no user-serviceable parts.
Never attempt any repairs yourself. To protect your GPS II+, keep it in its carrying case (optional accessory) when
not in use, and never allow gasoline or other solvents to come into contact with the case. To clean the case and
lens, use a soft cloth and a household window cleaner.
Appendix B
PHYSICAL
Case:Fully-gasketed, high-impact plastic alloy, waterproof
to IPX7 standards
Size:6.15ÓH x 2ÓW x 1.23ÓD (15.6 x 5.1 x 1.23 cm)
Weight:Approx. 9 ounces (255g) w/ batteries
Temperature Range:5 to 158¼F (-15¼ to 70¼C)
Memory Back Up:Internal Lithium Battery
PERFORMANCE
Receiver:Differential-ready PhaseTrac12ª
Acquisition Time:Approx. 15 seconds (warm start)
Approx. 45 seconds (EZinit/cold start)
Approx. 5 minutes (AutoLocate
ª)
Update Rate:1/second, continuous
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Specifications (cont.)
Position Accuracy:1-5 meters (3-15 ft.) with DGPS 
corrections*
15 meters (49 ft.) RMS**
Velocity Accuracy:0.1 knot RMS steady state 
Dynamics:Performs to specification to 6gÕs
Interfaces:NMEA 183, and RS-232 DGPS correction
Antenna:Detachable with standard BNC connectorPOWER
Input:Four 1.5-volt AA batteries or 10-32v DC
Power Consumption:0.75 watts max.
Battery Life :   Up to 24 hours 
 Note: Alkaline batteries lose a significant amount of their capacity
as temperature decreases. Use lithium batteries when operat-
ing the GPS II+
in below-freezing conditions. Extensive use
of screen backlighting will significantly reduce battery life.
Appendix B
Specifications subject to change without notice.
* With optional GARMIN GBR 21 Beacon Receiver Input.
** Subject to accuracy degradation to 100m 2DRMS under the U.S. DoD-imposed Selective Availability Program.
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							RReceive Data In
TTransmit Data Out
+10-32vDC In
-Ground Connection
87
Specifications and Wiring (cont.)
Three optional cables are available to connect the GPS II+to an external power source or interface with
another unit or PC:
¥ Power/Data CableÑ 
Allows connection to DC power source and
Input/Output devices.
¥ Cigarette Lighter AdapterÑ 
Allows connection to a 12-volt DC cigarette
lighter plug.
¥ Data Cross-Load CableÑ 
Allows data transfer between other GARMIN
GPS units.
¥ PC Kit Data CableÑ 
PC interface cable with 9-pin ÔDÕ serial data
connector.
Appendix B
RT
+
-
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							88
Specifications and Wiring (cont.)
The NMEA 0183 version 2.0 interface format is sup-
ported by the GPS II
+and enables the unit to drive up to
three NMEA devices:
NMEA 0183 version 2.0
Approved sentences:
GPGGA, GPGLL, GPGSA, GPGSV, GPRMB,
GPRMC, GPRTE, GPWPL, GPBOD
Proprietary sentences:
PGRME (estimated error), PGRMM (map datum),
PGRMZ (altitude), PSLIB (beacon receiver control)
Appendix B
DGPS corrections are accepted on RTCM-104 v. 2.0
format. The GARMIN GBR 21 is the recommended
beacon receiver for use with the GPS II+
. Other
receivers with the correct RTCM format may be used
but may not correctly display status or allow tuning
control.
GARMIN
GBR 21
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							89
Remote Antenna Installation
The GPS II+Õs antenna may be removed to allow attachment of an optional remote-mount GPS antenna
for certain applications.
To remove the attached antenna:
1. Rotate the antenna toward the rear of the unit as shown. 
Note: The antenna can only be removed or installed 
in this position.
2. Pull the antenna gently away from the unit.
3. To install the optional external antenna, mate the 
BNC connector notches with the mounting posts 
and turn the knurled knob one-quarter turn clockwise.
Appendix C
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							90
Messages
The GPS II+uses a flashing on-screen message indicator to alert you to important information. Whenever
the message indicator appears, press PAGE to view the message page. There are two types of messages: tem-
porary alerts and condition alerts. Temporary alerts can be cleared from the message page, while condition
alerts remain until the condition has been resolved. For your safety, pay careful attention to all messages.
Appendix D
Active WPT CanÕt be DeletedÑYou have attempted to
change the Ôactive toÕ or Ôactive fromÕ waypoint. Clear the
active route or GOTO before making your changes.
Accuracy has been DegradedÑThe unitÕs accuracy has been
degraded beyond 500 meters due to poor satellite geometry or
data quality. Check other navigational sources to verify the
position indicated.
Already ExistsÑThe name you are entering already exists in
the GPS II+
Õs memory.
ApproachingÑYou are one minute away from reaching a des-
tination waypoint.
Arrival atÑYou have reached your destination waypoint.
Battery Power is LowÑThe batteries are low and should be
replaced.Leg not SmoothedÑThe upcoming route leg is too short for
smooth waypoint transitions.
Memory Battery is LowÑThe battery that sustains user
memory is low and should be replaced by an authorized ser-
vice center as soon as possible. Failure to do so may result in
loss of stored data, including all user waypoints and routes.
Need 2D AltitudeÑThe unit needs altitude input in order to
start and/or continue 2D navigation.
Need to Select Init MethodÑYou must select an initializa-
tion method so the unit can locate satellites and obtain a fix.
No DGPS PositionÑNot enough data is available to com-
pute a DGPS position.
No PositionÑThe unit has not obtained a position fix and
cannot mark a position.
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Messages (cont.)
No RTCM InputÑBeacon receiver is improperly connected or
baud rates do not match.
Poor GPS CoverageÑThe unit cannot acquire the necessary
number of satellites to compute a position. Try another loca-
tion with a clearer view of the sky.
Power Down and Re-initÑThe GPS II+
cannot calculate a
position due to abnormal satellite conditions. Turn the unit off,
and use other means to verify the last position shown. Try the
unit again later, possibly in a different location.
Real Time Clock FailedÑThe unitÕs internal clock has failed.
Take your unit to an authorized GARMIN dealer for repairs.
Read Only Mem has FailedÑThe permanent memory has
failed and the unit is not operable. Take your unit to an autho-
rized GARMIN dealer for repairs.
Received an Invalid WPTÑA waypoint was received during
upload transfer that has an invalid identifier.
Receiver has FailedÑA failure in receiver hardware has been
detected. If this message persists, do not use the unit and take
it to an authorized dealer for repair.Route is FullÑYou have attempted to add more than 30 way-
points to a route.
RTCM Input has FailedÑDGPS data being received has been
lost. You are no longer receiving the beacon signal.
Searching the SkyÑThe GPS II+
is in searching the sky for
almanac data or the unit is in AutoLocate mode.
Stored Data was LostÑAll waypoints, routes, time, and
almanac data have been lost due to battery failure, or the
receiverÕs memory has been cleared.
Track Memory is FullÑYou have used all 1024 track log
points in the GPS II+
. Delete unwanted track points to make
room for new entries.
Transfer has been CompletedÑThe unit has finished
uploading or downloading information to the connected
device.
WPT Memory is FullÑYou have used all 500 waypoints in
the GPS II+
. Delete unwanted waypoints to make room for
new entries.
Appendix D
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							92
Map Datums
The following are the map datums available for the GPS II+
. Menu Page abbreviations are listed first, followed
by the corresponding map datum name and area. The default map datum for the GPS II+
is WGS 84.
Appendix E
AdindanAdindan- Ethiopia, Mali, Senegal, Sudan
AfgooyeAfgooye- Somalia
AIN EL ABD Ô70AIN EL ANBD 1970- Bahrain Island, Saudi
Arabia
Anna 1 Ast Ô65Anna 1 Astro Ô65- Cocos Isl.
ARC 1950ARC 1950- Botswana, Lesotho, Malawi,
Swaziland, Zaire, Zambia, Zimbabwe
ARC 1960ARC 1960- Kenya, Tanzania
Ascnsn Isld Ô58Ascension Island Ô58- Ascension Island
Astro B4 SorolAstro B4 Sorol Atoll- Tern Island
Astro Bcn ÒEÓAstro Beacon ÒEÓ- Iwo Jima 
Astro Dos 71/4Astro Dos 71/4- St. Helena 
Astr Stn Ô52Astronomic Stn Ô52- Marcus IslandAstrln Geod Ô66Australian Geod Ô66- Australia, Tasmania Island
Astrln Geod Ô84Australian Geod Ô84- Australia, Tasmania Island
Bellevue (IGN)Efate and Erromango Islands
Bermuda 1957Bermuda 1957- Bermuda Islands
Bogata ObservBogata Obsrvatry- Colombia
Campo InchspeCampo Inchauspe- Argentina
Canton Ast Ô66Canton Astro 1966- Phoenix Islands
CapeCape- South Africa
Cape CanavrlCape Canaveral- Florida, Bahama Islands
CarthageCarthage- Tunisia
CH-1903CH 1903- Switzerland
Chatham 1971Chatham 1971- Chatham Island (New Zealand)
Chua AstroChua Astro- Paraguay
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Map Datums (cont.)
Corrego AlegrCorrego Algre-Brazil
DjakartaDjakarta (Batavia)- Sumatra Island (Indonesia)
Dos 1968Dos 1968- Gizo Island 
(New Georgia Islands)
Easter Isld 67Easter Island 1967
European 1950European 1950- Austria, Belgium, Denmark,
Finland, France, Germany, Gibraltar, Greece,
Italy, Luxembourg, Netherlands, Norway,
Portugal, Spain, Sweden, Switzerland
European 1979European 1979- Austria, Finland, Netherlands,
Norway, Spain, Sweden, Switzerland
Finland HayfrdFinland Hayford- Finland
Gandajika BaseGandajika Base- Republic of Maldives
Geod Datm Ô49Geodetic Datum Ô49- New Zealand
Guam 1963Guam 1963- Guam Island
Gux 1 AstroGux 1 Astro- Guadalcanal IslandHjorsey 1955Hjorsey 1955- Iceland
Hong Kong Ô63Hong Kong Ô63- Hong Kong
Hu-Tzu-ShanHu-Tzu-Shan- Taiwan
Indian BngldshIndian- Bangladesh, India, Nepal
Indian ThailandIndian- Thailand, Vietnam
Indonesia Ô74Indonesia 1974- Indonesia
Ireland 1965Ireland 1965- Ireland
ISTS 073 AstroISTS 073 ASTRO Ô69- Diego Garcia
Johnston IslandJohnston Island Kandawala- Sri Lanka
Kerguelen IslndKerguelen Island
Kertau 1948Kertau 1948- West Malaysia, Singapore
L. C. 5 AstroCayman Brac Island
Liberia 1964Liberia 1964- Liberia
Luzon MindanaoLuzon- Mindanao Island
Luzon PhilippineLuzon- Philippines 
(excluding Mindanao Island)
Appendix E
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Map Datums (cont.)
Mahe 1971Mahe 1971- Mahe Island
Marco AstroMarco Astro- Salvage Island 
MassawaMassawa- Eritrea (Ethiopia)
MerchichMerchich- Morocco
Midway Ast Ô61Midway Astro Ô61- Midway 
MinnaMinna- Nigeria
NAD27 AlaskaNorth American 1927- Alaska
NAD27 BahamasNorth American 1927- Bahamas 
(excluding San Salvador Island)
NAD27 CanadaNorth American 1927- Canada and
Newfoundland
NAD27 Canal ZoneNorth Am. 1927- Canal Zone
NAD27 CaribbnNorth American 1927- Caribbean (Barbados,
Caicos Islands, Cuba, Dom. Rep., Grand
Cayman, Jamaica, Leeward and Turks Islands)NAD27 CentralNorth American 1927- Central America (Belize,
Costa Rica, El Salvador, Guatemala, Honduras,
Nicaragua)
NAD27 CONUSNorth Am. 1927- Mean Value 
NAD27 CubaNorth American 1927- Cuba
NAD27 GrnlandNorth American 1927- Greenland 
(Hayes Peninsula)
NAD27 MexicoN. American 1927- Mexico
NAD27 San SalNorth American 1927- San Salvador Island
NAD83North American 1983- Alaska, Canada, Central
America, CONUS, Mexico
Nhrwn MasirahNahrwn- Masirah Island (Oman)
Nhrwn Saudi ANahrwn- Saudi Arabia
Nhrwn United ANahrwn- United Arab Emirates
Naparima BWINaparima BWI- Trinidad and Tobago
Obsrvtorio Ô66Observatorio 1966- Corvo and Flores Islands
(Azores)
Appendix E
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