Specifications | Garmin GNC 300 GPS Receiver User Manual

GARMIN International, Inc.
9875 Widmer Road
Lenexa, KS 66215 U.S.A.
FAA APPROVED AIRPLANE FLIGHT MANUAL SUPPLEMENT
GARMIN GNC300 VHF COMMUNICATION TRANSCEIVER / GPS RECEIVER
Table of Contents
SECTION
PAGE
GENERAL..............................................................................................................4
LIMITATIONS ......................................................................................................5
EMERGENCY PROCEDURES.............................................................................6
NORMAL PROCEDURES ....................................................................................8
PERFORMANCE...................................................................................................16
WEIGHT AND BALANCE ...................................................................................16
AIRPLANE & SYSTEM DESCRIPTIONS ...........................................................16
FAA APPROVED
DATE: 10/16/95
190-00067-03 Rev. A
Page 3 of 16
GARMIN International, Inc.
9875 Widmer Road
Lenexa, KS 66215 U.S.A.
FAA APPROVED AIRPLANE FLIGHT MANUAL SUPPLEMENT
GARMIN GNC300 VHF COMMUNICATION TRANSCEIVER / GPS RECEIVER
SECTION I
GENERAL
1.
The GNC300 System is a fully integrated, panel mounted instrument,
which contains a 760 channel VHF Communications Transceiver and a Global
Positioning System (GPS) Navigation computer. The system consists of a GPS
antenna, a GPS Receiver, and a VHF Communications Transceiver. The primary
function of the VHF Communication portion of the equipment is to facilitate
communication with Air Traffic Control. The primary function of the GPS portion
of the system is to acquire signals from the GPS system satellites, recover orbital
data, make range and Doppler measurements, and process this information in realtime to obtain the user’s position, velocity, and time.
2. Provided the GARMIN GNC300 navigation system is receiving adequate usable
signals, it has been demonstrated capable of and has been shown to meet the
accuracy specifications for:
•
VFR/IFR enroute, terminal, and non-precision instrument
approach (GPS, Loran-C, VOR, VOR-DME, TACAN, NDB,
NDB-DME, RNAV) operation within the U.S. National
Airspace System in accordance with AC 20-138.
•
North Atlantic Minimum Navigation Performance
Specification (MNPS) Airspace in accordance with AC 9149 and AC 120-33.
Navigation is accomplished using the WGS-84 (NAD-83) coordinate reference
datum. Navigation data is based upon use of only the Global Positioning
System (GPS) operated by the United States of America.
190-00067-03 Rev. A
Page 4 of 16
FAA APPROVED
DATE: 10/16/95
GARMIN International, Inc.
9875 Widmer Road
Lenexa, KS 66215 U.S.A.
FAA APPROVED AIRPLANE FLIGHT MANUAL SUPPLEMENT
GARMIN GNC300 VHF COMMUNICATION TRANSCEIVER / GPS RECEIVER
SECTION II
LIMITATIONS
1.
The GARMIN GNC300 Pilot’s Guide, P/N 190-00067-00, must be
immediately available to the flight crew whenever navigation is predicated on
the use of the system.
2.
The GNC300 must utilize software version 2.02 or later FAA approved
revision. The software version is displayed on the GNC300 self test page
immediately after turn-on for 5 seconds.
3.
IFR enroute and terminal navigation is prohibited unless the pilot verifies the
currency of the data base or verifies each selected waypoint for accuracy by
reference to current approved data.
4.
Instrument approaches must be accomplished in accordance with approved
instrument approach procedures that are retrieved from the GPS equipment
data base. The GPS equipment data base must incorporate the current update
cycle.
(a) Instrument approaches must be conducted in the approach mode and
Receiver Autonomous Integrity Monitoring (RAIM) must be available at
the Final Approach Fix.
(b) Accomplishment of ILS, LOC, LOC-BC, LDA, SDF, and MLS
approaches are not authorized.
(c) Coupling of the autopilot/flight director to GPS deviation data on the arc
segment of approaches incorporating an arc transition is not authorized.
FAA APPROVED
DATE: 10/16/95
190-00067-03 Rev. A
Page 5 of 16
GARMIN International, Inc.
9875 Widmer Road
Lenexa, KS 66215 U.S.A.
FAA APPROVED AIRPLANE FLIGHT MANUAL SUPPLEMENT
GARMIN GNC300 VHF COMMUNICATION TRANSCEIVER / GPS RECEIVER
(d) When an alternate airport is required by the applicable operating rules, it
must be served by an approach based on other than GPS or Loran-C
navigation, the aircraft must have the operational equipment capable of
using that navigation aid, and the required navigation aid must be
operational.
5. The aircraft must have other approved navigation equipment installed and
operating appropriate to the route of flight.
6. If not previously defined, the following default settings must be made in the
“SET” menu of the GNC300 prior to operation (refer to Pilot's Guide for
procedure if necessary):
(a)
(b)
(c)
(d)
nav ............... kt (sets navigation units to “nautical miles” and “knots”)
alt ................. ft fpm (sets altitude units to “feet” and “feet per minute”)
map datum .. WGS 84 (sets map datum to WGS-84, see note below)
posn ............. deg-min (sets navigation grid units to decimal minutes)
NOTE: In some areas outside the United States, datums other than WGS84 or NAD-83 may be used. If the GNC300 is authorized for use by the
appropriate Airworthiness authority, the required geodetic datum must be
set in the GNC300 prior to its use for navigation.
SECTION III
EMERGENCY PROCEDURES
ABNORMAL PROCEDURES
1. If GARMIN GNC300 navigation information is not available or invalid, utilize
remaining operational navigation equipment as required.
190-00067-03 Rev. A
Page 6 of 16
FAA APPROVED
DATE: 10/16/95
GARMIN International, Inc.
9875 Widmer Road
Lenexa, KS 66215 U.S.A.
FAA APPROVED AIRPLANE FLIGHT MANUAL SUPPLEMENT
GARMIN GNC300 VHF COMMUNICATION TRANSCEIVER / GPS RECEIVER
2. If "RAIM POSITION WARN" message is displayed the system will flag and no
longer provide navigational guidance. The crew should revert to an alternate
means of navigation.
3. If "RAIM NOT AVAILABLE" message is displayed in the enroute, terminal, or
initial approach phase of flight, continue to navigate using the GPS equipment or
revert to an alternate means of navigation appropriate to the route and phase of
flight. When continuing to use GPS navigation, position must be verified every
15 minutes using another IFR-approved navigation system.
4. If "RAIM NOT AVAILABLE" message is displayed while on the final
approach segment, navigation will continue for up to 5 minutes with approach
CDI sensitivity (0.3 nautical mile). After 5 minutes the system will flag and no
longer provide course guidance with approach sensitivity. Missed approach
course guidance may still be available with 1 nautical mile CDI sensitivity by
executing the missed approach operation described in Section IV paragraph 2(f)
of this Airplane Flight Manual Supplement.
5. If external power to the GNC300 is lost, the system will automatically revert to
its remote battery, and navigation will continue. VHF Communications will be
available at reduced transmitter power output. A message will be presented to
the pilot that the unit will turn off in XX seconds unless a key is pressed to
continue navigation (XX is a countdown from 30). If external power is lost, the
pilot’s HSI display will automatically revert to NAV1 data. When the GNC300
is operating on its remote battery, the display will automatically blank to
conserve power after the time interval setting on the SETUP menu. Activating
any control on the GNC300 automatically re-enables the display for the set timeout period.
6. In an in-flight emergency, depressing and holding the Comm transfer button for
2 seconds will select the emergency frequency of 121.500 Mhz into the "Active"
frequency window.
FAA APPROVED
DATE: 10/16/95
190-00067-03 Rev. A
Page 7 of 16
GARMIN International, Inc.
9875 Widmer Road
Lenexa, KS 66215 U.S.A.
FAA APPROVED AIRPLANE FLIGHT MANUAL SUPPLEMENT
GARMIN GNC300 VHF COMMUNICATION TRANSCEIVER / GPS RECEIVER
SECTION IV
NORMAL PROCEDURES
1. DETAILED OPERATING PROCEDURES
Normal operating procedures are described in the GARMIN GNC300 Pilot’s
Guide, P/N 190-00067-00, Rev. A, dated August, 1995, or later appropriate
revision.
2. APPROACH MODE / RAIM PREDICTION
General Approach Mode Procedures
The information contained in this section is vital for successful operation of the
GNC300 during approach mode. The following is a summary of the approach
navigation features provided by the GNC300:
(a)
The pilot may, at any time, select an approach that is available for the
destination airport (see Pilot’s Guide for more information on selecting
approaches). The destination airport is defined to be the last waypoint in the
active route or the current direct-to airport.
NOTE: If the destination airport is the active waypoint
when an approach is selected, the active waypoint will
automatically change to the IAF of the selected approach.
If it is desired to NOT automatically change to the IAF,
the pilot should select HOLD on the annunciator unit
prior to selecting the approach.
(b)
Once an approach has been selected, the GNC300 will automatically arm the
approach mode when the aircraft is within 30 nautical miles of the approach
airport. In addition, the GNC300 will display the message "Need pres-press
NAV" to remind the pilot to enter the altimeter setting at the destination
airport.
190-00067-03 Rev. A
Page 8 of 16
FAA APPROVED
DATE: 10/16/95
GARMIN International, Inc.
9875 Widmer Road
Lenexa, KS 66215 U.S.A.
FAA APPROVED AIRPLANE FLIGHT MANUAL SUPPLEMENT
GARMIN GNC300 VHF COMMUNICATION TRANSCEIVER / GPS RECEIVER
NOTE: It is important to verify/enter the altimeter setting
at the destination airport. This setting is used to calibrate
pressure altitude when the GNC300 is navigating in the
approach mode and will directly affect the unit’s
capability to provide accurate navigation guidance.
(c)
When approach mode is available and the aircraft is within 30 nm of the
destination airport, the GPS APR (GPS Approach) annunciator will indicate
ARM, and the GNC300 will provide a smooth CDI scaling transition from
5.0 nautical miles full scale to 1.0 nautical mile full scale. In addition, the
GNC300 will perform receiver autonomous integrity monitoring with a
protection limit of 1.0 nautical mile. When approach mode is available and
armed, the pilot may at any time deactivate the approach mode by pressing
the GPS APR (GPS Approach) Switch on the annunciator unit. Pressing the
GPS APR switch a second time will re-arm approach mode.
(d)
If the aircraft is within 3.0 nautical miles inbound to the FAF and the pilot
has deactivated the approach mode with the GPS APR Switch, the message
"Arm Approach Mode" will be displayed. Pressing the GPS APR switch will
re-arm the approach mode.
(e)
When the GNC 300 approach mode has been armed (ARM annunciator
illuminated), the GPS SEQ switch has been set to AUTO, and the aircraft is
within 2.0 nautical miles of the FAF, the ACTV (Active) annunciator will be
illuminated and the CDI scale sensitivity will start to change from 1.0 nautical
mile full scale to 0.3 nautical mile full scale. In addition, the GNC300 will
perform receiver autonomous integrity monitoring with a protection limit of
0.3 nautical mile.
FAA APPROVED
DATE: 10/16/95
190-00067-03 Rev. A
Page 9 of 16
GARMIN International, Inc.
9875 Widmer Road
Lenexa, KS 66215 U.S.A.
FAA APPROVED AIRPLANE FLIGHT MANUAL SUPPLEMENT
GARMIN GNC300 VHF COMMUNICATION TRANSCEIVER / GPS RECEIVER
(f)
When flying the final approach leg of an active approach, the pilot may
activate the missed approach by pressing the GPS APR switch to deactivate
the approach mode. The GNC300 will then continue to provide course
guidance along the final approach path to the MAP (Missed Approach Point),
change the CDI sensitivity to 1.0 nautical mile full scale, and extinguish the
ACTV (active) annunciation.
After crossing the MAP (Missed Approach Point), the pilot may activate the
missed approach holding waypoint by simply pressing the direct-to key (the
GNC300 will display the waypoint coordinates of the missed approach
holding point or the first waypoint in the missed approach procedure if more
than one) followed by the ENT key. If an intercept course other than the
direct-to navigation course is desired (which is often the case) the pilot
should press the GPS SEQ (GPS Sequence) switch so that the HOLD
annunciator illuminates.
NOTE: It is the pilot’s responsibility to assure that the
missed approach procedure is accomplished in protected
airspace. The missed approach procedure must be flown
as depicted on the approach chart and normally should
not be started until the aircraft has arrived at the MAP.
Approach Waypoint Sequencing
If the GNC300 is being used to navigate directly to an Airport (no route active),
selecting an approach automatically loads the waypoints of the selected
approach into the active route, and selects the Initial Approach Fix (IAF) as the
active waypoint. If a route is active when the approach is selected, the approach
waypoints beginning with the IAF are automatically added to the end of the
route. Upon arrival at each waypoint, if the GPS SEQ switch is set to AUTO,
the GNC300 will automatically sequence to the next waypoint in the route.
When the missed approach point (MAP) is passed, the GNC300 will stop
sequencing and continue to provide course guidance along an extension of the
final approach path.
190-00067-03 Rev. A
Page 10 of 16
FAA APPROVED
DATE: 10/16/95
GARMIN International, Inc.
9875 Widmer Road
Lenexa, KS 66215 U.S.A.
FAA APPROVED AIRPLANE FLIGHT MANUAL SUPPLEMENT
GARMIN GNC300 VHF COMMUNICATION TRANSCEIVER / GPS RECEIVER
Course Reversals (Procedure Turn)
If a course reversal is required, the pilot must set the required outbound course
on the HSI and select HOLD mode with the GPS SEQ switch prior to crossing
the FAF outbound. The GNC300 will then provide the appropriate course
guidance outbound from the fix. Upon starting the course reversal (procedure
turn outbound), the pilot must set the charted inbound approach course on the
HSI. When intercepting the approach course inbound, the pilot must set the
GPS SEQ switch to AUTO. The GNC300 will provide guidance inbound to the
FAF on the course which was set on the HSI at the time the GPS SEQ switch
was changed from HOLD to AUTO.
NOTE: It is important that the GPS SEQ switch be
changed from HOLD to AUTO after the HSI course
pointer is set to the inbound approach course. For GPS
approach activation to occur, the GPS SEQ switch must
be set to AUTO prior to crossing the FAF inbound.
Approach Vectoring
The approach route loaded when an approach is selected includes all of the
normal approach segments. Normally, the first approach waypoint encountered
is the IAF. If ATC is providing vectoring on the approach, any waypoint on the
approach may be manually selected as the first waypoint of use. If, for example,
ATC provides vectors to the final approach course, the FAF should be selected
as the first approach waypoint to use. When informed by ATC that you are
being provided vectors to the final approach course, select the FAF by placing
the cursor over that waypoint on the RTE page, and pressing the DIRECT TO
key followed by the ENT key. The GPS SEQ switch must be placed in the
HOLD position, and the HSI course pointer used to select the inbound final
approach course. Upon intercepting the inbound final approach course, place
the GPS SEQ switch in the AUTO position.
FAA APPROVED
DATE: 10/16/95
190-00067-03 Rev. A
Page 11 of 16
GARMIN International, Inc.
9875 Widmer Road
Lenexa, KS 66215 U.S.A.
FAA APPROVED AIRPLANE FLIGHT MANUAL SUPPLEMENT
GARMIN GNC300 VHF COMMUNICATION TRANSCEIVER / GPS RECEIVER
Approach with DME arc segments
Approach procedures which utilize a DME arc transition may be flown using the
GNC300.
For course guidance along the DME ARC, the pilot must select the NAV
Position Page on the GNC300 and assure that the reference waypoint displayed
is the approved reference facility for the DME ARC. The distance to the
reference facility is depicted on the right of the screen and may be used in the
same way that a DME presentation would be used to fly the arc.
Once established on the DME ARC, the pilot must select HOLD mode using the
GPS SEQ switch. (Ensure HOLD is accomplished on the intermediate fix
located at the intersection of the arc and the course which completes the arc.)
Set the HSI to the published intermediate or final approach course. The HSI
will then display course deviation relative to that course. When the intermediate
or final approach course has been intercepted, the pilot must select AUTO mode
using the GPS SEQ switch.
Note: AUTO mode must be selected at least 2 nm prior to
the next waypoint.
If an autopilot/flight director is used, the pilot must select HDG mode on the
autopilot/flight director and manually adjust heading as necessary to maintain
the required path along the DME ARC. Once the final approach course has
been intercepted, NAV or APPR mode may be selected on the autopilot/flight
director if desired.
Holding at a fix
The GNC300 may be used to hold at any waypoint by simply selecting that
waypoint and placing the GPS SEQ switch in the HOLD mode. The HSI course
pointer may then be used to select the holding or non-holding course as
appropriate.
190-00067-03 Rev. A
Page 12 of 16
FAA APPROVED
DATE: 10/16/95
GARMIN International, Inc.
9875 Widmer Road
Lenexa, KS 66215 U.S.A.
FAA APPROVED AIRPLANE FLIGHT MANUAL SUPPLEMENT
GARMIN GNC300 VHF COMMUNICATION TRANSCEIVER / GPS RECEIVER
RAIM Prediction
As indicated in Section 2, GPS approaches are not authorized unless RAIM is
available at the FAF. RAIM availability at the destination may be predicted
using the GNC300. To display predicted RAIM availability for the current
destination, select "RAIM Prd?" from the NAV-TIME menu. When the ENT
key is depressed with the cursor on the "Calculate RAIM" prompt, the GNC300
calculates the predicted availability of RAIM at the displayed waypoint for a
time interval of 15 minutes before, to 15 minutes after the displayed ETA.
Actual availability of RAIM may vary depending upon satellite conditions
existing upon arrival at the destination.
3. SYSTEM SWITCHES / ANNUNCIATORS
An integrated switching and annunciation unit is used with the GNC300 system.
This unit is located on the instrument panel in the pilot’s primary field of view as
illustrated below.
NAV
ARM
HOLD
MSG
GPS
ACTV
AUTO
WPT
LAMP
NAV
GPS
FAA APPROVED
DATE: 10/16/95
GPS
APR
GPS
SEQ
TEST
190-00067-03 Rev. A
Page 13 of 16
GARMIN International, Inc.
9875 Widmer Road
Lenexa, KS 66215 U.S.A.
FAA APPROVED AIRPLANE FLIGHT MANUAL SUPPLEMENT
GARMIN GNC300 VHF COMMUNICATION TRANSCEIVER / GPS RECEIVER
(a)
NAV / GPS switch and annunciators - By depressing this switch, the
GNC300 data and the NAV (VOR/ILS) data will be alternately displayed on
the pilot’s HSI and selected for the autopilot / flight director input. The
source of data being displayed will be annunciated on the face of the unit with
either a white NAV legend or a green GPS legend as appropriate.
(b)
GPS Message (MSG annunciator) - When the GNC300 has a new message,
the amber MSG annunciator will flash. When this occurs, press the MSG key
on the GNC300 to view the message. Continue to press the MSG key on the
GNC300 until the page you were viewing prior to pressing the MSG key is
displayed.
(c)
GPS Waypoint (WPT annunciator) - When the GNC300 detects that the
aircraft is 15 seconds from the next programmed waypoint or turn
anticipation point, the amber WPT annunciator will flash and the CDI
depiction on the CDI Page will be replaced by a flashing "Next dtk xxx°"
prompt. Approximately 2 seconds before the turn anticipation point
(calculated for 15 degrees of bank) the WPT annunciator will turn on steady.
This is the indication that you should start the turn to the next DTK. Upon
passing the waypoint (or half way through the turn), the annunciator will
automatically extinguish.
190-00067-03 Rev. A
Page 14 of 16
FAA APPROVED
DATE: 10/16/95
GARMIN International, Inc.
9875 Widmer Road
Lenexa, KS 66215 U.S.A.
FAA APPROVED AIRPLANE FLIGHT MANUAL SUPPLEMENT
GARMIN GNC300 VHF COMMUNICATION TRANSCEIVER / GPS RECEIVER
(d)
GPS SEQ switch and annunciators (AUTO / HOLD) - When AUTO
sequencing mode is enabled, depressing this switch disables automatic GPS
waypoint sequencing and enables course entry from the pilot’s HSI course
needle. The amber HOLD legend is illuminated. If depressed again, the GPS
system re-enables automatic waypoint sequencing, captures the selected
course from the HSI course needle, and illuminates the green AUTO legend.
NOTE:
If the To / From indicator on the CDI / HSI
indicates "From" when the GPS SEQ switch is pressed to
re-select AUTO mode from HOLD mode, the GNC 300,
will automatically calculate a course to the next waypoint
from the aircrafts current position and automatically
sequence to that waypoint.
(e)
GPS APPR switch and annunciators (ARM / ACTV) - The GNC300
Approach ARM Mode is automatically engaged when the pilot has selected
an approach and the aircraft is within 30 nm of the approach airport. When
the approach mode has been armed or activated, the approach mode may be
deactivated by depressing the GPS APPR switch. When the approach mode
has been armed, the white ARM annunciator will illuminate. When the
GNC300 then detects that conditions are acceptable and the aircraft is within
2 nm of the FAF, the green ACTV annunciator will illuminate and the white
ARM annunciator will simultaneously extinguish. If the pilot has deactivated
approach mode by pressing the GPS APR switch, pressing the switch a
second time will re-arm approach mode.
(f)
LAMP TEST switch. When this switch is depressed, all annunciators in the
unit will illuminate until the switch is released.
4. PILOT’S DISPLAY
The GNC300 System data will appear on the HSI when it has been selected
using the NAV / GPS switch described in paragraph 3(a) above.
FAA APPROVED
DATE: 10/16/95
190-00067-03 Rev. A
Page 15 of 16
GARMIN International, Inc.
9875 Widmer Road
Lenexa, KS 66215 U.S.A.
FAA APPROVED AIRPLANE FLIGHT MANUAL SUPPLEMENT
GARMIN GNC300 VHF COMMUNICATION TRANSCEIVER / GPS RECEIVER
5. AUTOPILOT / FLIGHT DIRECTOR OPERATION
Coupling of the GNC300 System steering information to the autopilot/flight
director can be accomplished by engaging the autopilot/flight director in the
NAV or APR mode, with the NAV / GPS switch set to GPS.
When the autopilot/flight director system is using course information supplied
by the GNC300 System and the course pointer is not automatically driven to the
desired track, the course pointer on the HSI must be manually set to the desired
track (DTK) indicated by the GNC300. For detailed autopilot/flight director
operational instructions, refer to the FAA Approved Flight Manual Supplement
for the autopilot/flight director.
NOTE: When the autopilot/flight director is using data
supplied by the GNC300 and the GNC300 is in Route
mode, the course pointer must be reset to the new desired
track (DTK) at each route leg change.
SECTION V
PERFORMANCE
No change.
SECTION VI
WEIGHT AND BALANCE
See current weight and balance data.
SECTION VII
AIRPLANE & SYSTEM DESCRIPTIONS
See GNC300 Pilot’s Guide for a complete description of the GNC300 system.
190-00067-03 Rev. A
Page 16 of 16
FAA APPROVED
DATE: 10/16/95
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