Garmin GNC 250XL GPS Navigator w/ VHF COM

航空发表于 2010-10-20 22:11:08

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航空发表于 2010-10-20 22:11:28

P/N 11934-S05 1 of 6 Cirrus Design Section 9 SR20 Supplements Pilot’s Operating Handbook and FAA Approved Airplane Flight Manual Supplement for Garmin GNC 250XL GPS Navigator w/ VHF COM When a Garmin GNC 250XL GPS Navigator with VHF COM is installed in the Cirrus Design SR20, this Supplement is applicable and must be inserted in the Supplements Section (Section 9) of the Cirrus Design SR20 Pilot’s Operating Handbook. This document must be carried in the airplane at all times. Information in this supplement either adds to, supersedes, or deletes information in the basic SR20 Pilot’s Operating Handbook. Original: 3-31-99 2 of 6 P/N 11934-S05 Section 9 Cirrus Design Supplements SR20 Figure - 1 Section 1 - General The airplane is equipped with a Garmin GNC 250XL GPS Navigator with VHF COM, herein referred to as the “Navigator.” The GNC 250XL utilizes the Global Positioning System (GPS) satellite network to derive the airplane’s position (latitude, longitude, and altitude) and the altitude digitizer to enhance the altitude calculation. The VHF COM transceiver facilitates communication with Air Traffic Control. Provided the GPS Navigator is receiving adequate usable signals, it has been demonstrated capable of and has been shown to meet the accuracy specifications of AC 20-138 for VFR flight. 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. SR20_FM09_1110 Garmin GNC 250XL Front Panel Original: 3-31-99 P/N 11934-S05 3 of 6 Cirrus Design Section 9 SR20 Supplements Section 2 - Limitations 1. The Garmin GNC 250XL Pilot's Guide and Reference, P/N 190- 00067-60, Revision A dated March 1997 (or later appropriate revision) must be immediately available to the flight crew whenever navigation is predicated on the use of the GPS Navigator. 2. The Navigator must utilize software version 2.X (where X is a digit, 0-9). 3. The GNC 250XL is limited to VFR navigation only. Section 3 - Emergency Procedures 1. If GPS Navigator information is not available or is invalid, utilize remaining operational navigation equipment as required. 2. If the “RAIM POSITION WARNING” message is displayed, immediately revert to an alternate means of navigation appropriate to the route and phase of flight. 3. If the “RAIM NOT AVAILABLE…” message is displayed, 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. In an in-flight emergency, depressing and holding the COM transfer button for two (2) seconds selects the emergency frequency, 121.500 MHz, into the active frequency window. Original: 3-31-99 4 of 6 P/N 11934-S05 Section 9 Cirrus Design Supplements SR20 Section 4 - Normal Procedures Normal operating procedures are outlined in the Garmin GNC 250XL Pilot's Guide and Reference, P/N 190-00067-60, Revision A dated March 1997 (or later appropriate revision). Activate GPS 1. Battery Master Switch ............................................................... ON 2. Avionics Power Switch .............................................................. ON 3. Navigator COM/ Power Switch..................................... Rotate ‘ON’ The Navigator will display a welcome page while the self-test is in progress. When the self test is successfully completed, the Navigator asks for NavData database confirmation, displays the satellite status page while it acquires position, and then displays the acquired position on the Navigator’s display. Deactivate GPS 1. Navigator COM/ Power Switch..........................Rotate CCW ‘OFF’ Section 5 - Performance No Change Section 6 - Weight & Balance No Change Section 7 - Systems Description • Note • This supplement provides a general description of the Garmin GNC 250XL, its operation, and SR20 interface. For a detailed description of the GNC 250XL and full operation instructions refer to the Garmin GNC 250XL Pilot's Guide and Reference, P/N 190-00067-60, Revision A dated March 1997 (or later appropriate revision). Original: 3-31-99 P/N 11934-S05 5 of 6 Cirrus Design Section 9 SR20 Supplements GNC 250XL Integrated GPS/NAV/COM System This airplane is equipped with a GNC 250XL integrated GPS navigator and COM receiver. The GPS navigator consists of a GPS receiver and a Jeppesen NavData database all contained in the GNC 250XL control unit mounted in the center console. The GPS is designated ‘GPS 2.’ Also integrated into the GNC 250XL control unit is a VHF communications receiver, designated COM 2. All tuning and display controls for the GPS and COM are located in the GNC 250XL control/ display in the center console. The following paragraphs describe the GPS and COM functions of this unit. For a complete description, as well as full operating instructions, refer to the Garmin GNC 250XL Pilot’s Guide and Reference. GPS Navigator The Garmin GNC 250XL GPS navigator provides backup for the GNS 430 Navigator and is approved for VFR use only. The system utilizes the Global Positioning System (GPS) satellite network to derive the airplane’s position (latitude, longitude, and altitude) and the altitude digitizer to enhance the altitude calculation. The GPS antenna is located on the underside of the glareshield behind the MFD. All GPS navigator controls and functions are accessible through the GNC 250XL front control panel located in the center console. The panel includes function keys, power switches, MSG and Nav status annunciators, LCD display, two concentric selector knobs, and a Jeppesen NavData card slot in each panel. The GNC 250XL navigator is powered by 28 VDC through the 7.5-amp COM2 circuit breaker on the Avionics Non-Essential Bus. The Jeppesen Navigation Database provides access to data on Airports, Approaches, Standard Instrument Departures (SIDs), Standard Terminal Arrivals (STARs), VORs, NDBs, Intersections, Minimum Safe Altitudes, Controlled Airspace Advisories and Frequencies. North American and International databases are available. Database information is provided on a card that can be inserted into the card slot on the GPS unit. Subscription information is provided in a subscription packet provided with each system. Original: 3-31-99 6 of 6 P/N 11934-S05 Section 9 Cirrus Design Supplements SR20 Communication (COM) Transceiver The GNC 250XL includes a digitally-tuned integrated VHF communications (COM) transceiver. The transceiver and integrated controls are mounted in the Garmin GNC 250XL unit and are designated COM2. The transceiver receives all narrow- and wideband VHF communication transmissions transmitted within a frequency range of 118.000 MHz to 136.975 MHz in 25.0 kHz steps (720 channels). The tuning controls are collocated with the NAV at the right side of the GNC 250XL front panel. Frequency tuning is accomplished by rotating the large and small concentric knobs to select a standby frequency and then transferring the frequency to the active window. The active frequency is always displayed at the upper left corner of the GNC 250XL display. The standby frequency is displayed below the active frequency in the map mode and to the right of the active frequency in all other modes. Auto-tuning can be accomplished by entering a frequency from a menu. The COM 2 antenna is located below the cabin on the airplane centerline. 28 VDC for transceiver operating is controlled through the Avionics Master Switch and supplied through the 7.5-amp COM2 circuit breaker on the Avionics Non-Essential Bus. Original: 3-31-99

f214216709 发表于 2010-10-26 08:18:47

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maodun 发表于 2010-10-30 16:37:58

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Garmin GNC 250XL GPS Navigator w/ VHF COM