Part #: 011-00412-00

Model: GPS-155XL

Garmin - IFR GPS Receiver
Part Number :

  • IFR GPS Certified for en route and approach with moving map
  • Jeppesen database includes airports, VOR's, NDB's, intersections, Comm frequencies, runways, FSS/ARTCC, MSA, SUA, approaches, and SIDs/Stars
  • Three line vacuum-florescent dot matrix display
  • Built-in rechargeable battery
  • Interfaces with most flight control, EFIS, HSI and othe cockpit systems
  • 12 parallel channel GPS receiver
  • Americas, International, and Worldwide database coverage available
  • 1000 user defined waypoints
  • 20 reversible routes of up to 31 waypoints each
  • Stoarge for 40 character comments on up to 250 waypoints
  • 9 user checklists of up to 30 items each
  • 9 schedules user messages
Emergency Search: 9 nearest airports, VORs, NDBs, intersections, or user waypoints; 2 nearest FSS with frequncies; 2 nearest ARTCC frequencies Alarms: Arrival, Proximity, Timers, SUAs less than 10 min, 2NM and inside SUA
Receiver: PhaseTrac 12 tracks and uses up to 12 satellites to compute amd update position Acquisition Time: 15 seconds (warm), 45 seconds (cold)
Update Rate: 1/second, continuous Accuracy: 15 meters (position)
Interfaces: ARINC 429, RS232, plotting (NMEA 0183 v2.0), Aviation, PC interface, altitude serializer, altitude encoder, fuel sensor, fuel/air data computer Map Datums: 124 predefined, 1 user defined
Size:  6.25 x 2 x 5.8 inches Weight: 27 ounces  
Certification: TSO C129a Class A1 (en route, terminal and approach) Display: 80 x 240 double super twist nematic with six times the contract of typical DSTN displays. Automatic contrast adjustment with reverse video display mode for exceptional readability in direct sunlight or at night
Power Backup: Optional battery pack automatically powers unit in case of electric power failure Navigation Features: Search and rescue operation (ladder search), course selection capability via mechanical and EFIS, HSI, Closest point of appraoch, approach navigation using published approach procedures stored on data crda, terminal naviagtion using SID/STAR from data card
Planning Features: True airspeed, density altitude, winds aloft, RAIM availability, Sunrise/Sunset calculations, and trip, fuel and VNAV planning Dynamics: Velocity: 999 knots Acceleration: 6G
Power Source: 10-33 VDC, optional rechargeable battery, 115-230 VAC with optional AC adpater for GPS simulator operation Data Storage: Internal battery retains stored data up to 5 years
Part NumberGPS Description:
011-00412-00 As described above
010-N0159-00 Garmin Catalog P/N, not used for ordering


- IFR GPS Receiver
Price Condition Delivery

SEA Repair Capabilities: Yes

- IFR GPS Receiver
Price Condition Delivery

SEA Repair Capabilities: No

Click on a question below to see the answer. If you have a question about this model that is not answered below, please contact

Yes, the Bendix/King KI-209A will connect with the Garmin GPS-155XL IFR GPS and the GNC-300XL IFR GPS/Comm to provide Left/Right and To/From Deviation Indications. However, to properly connect the GPS-155XL and GNC-300XL to the KI-209A indicator, the installer must add two 10 kohm, 1/4 watt resistors between the connection. One resistor is placed in between connector P1 pins 35 and 4, and the other resistor between connector P1 pins 37 and 4.

For handheld GPS receivers, database updates can be ordered and downloaded directly through Garmin's Internet site.

For panel mount GPS receivers, all database cards and computer downloads (if applicable) must be ordered through Jeppesen. Contact Jeppesen at for more information.

The GPS-155XL will provide ARINC 429 GPS position information for the ST3400. This is acceptable for Class B requirements. The GPS-155XL does not provide GPS altitude data that may be used for Class A approval.
A normal Annunciator Control Unit (ACU) includes a control and relay assembly. The control portion includes lighted annunciations (words) as well as a switch assembly to activate a relay. The relay assembly provides the electrical transfer of information between a conventional nav (VOR/ILS/GS) and GPS to one Course Deviation Indicator (CDI).

The ACU units can be complete with control and relay built into one assembly or they can be separated depending on the part number. Some GPS systems and CDIs include internal relays. Therefore, only a control with switch is required. In this case, you would only purchase the Control Head. Some installations use different custom sizes and styles of annunciator switches. Therefore, in this case, only a remote relay is purchased without a control assembly.

In addition to variations in switches, relays, and sizes, ACUs are engineered to be compatible with specific GPS systems by different manufacturers. Variations in power input and bezel orientation are available as well.
For IFR GPS approach certification, GPS status annunciations are required to be in the pilot's field of view. These annunciations (or lights) indicate active switches such as the NAV/GPS and OBS (if applicable) modes. Other annunciations or alerts might include the following:

TERM - light that will signal pilot when operating within 30 miles of departure or arrival airport (i.e. Terminal area)
APR - light that signals pilot when the GPS is engaged in Approach mode
MSG - light that signals pilot that the GPS has generated a Message alert that should be viewed on the GPS
WPT - light that signals pilot that the GPS has generated a Waypoint alert that should be viewed on the GPS
INTG - light that will signal pilot when the GPS receiver detects a position error or is unable to calculate the Integrity of the position

Some annunciator units and annunciator control units or ACUs have a variety a these switches and annunciators depending on the GPS system to be interfaced with or the aircraft installation. However, there are certain annunciations such as MSG and WPT that are standard for all annunciators required.

Southeast Aerospace exchanges are based on the return of an undamaged, economically repairable core unit with identical part number as the unit shipped to the customer. An "economically repairable" core is defined as one where the cost to repair/overhaul (or Repair Cap) does not exceed 80% of the original SV/OH exchange price billed. Should the Repair Cap exceed 80%, the customer will be billed the additional amount. In the event this amount exceeds the Outright Price for the unit, the customer would only be billed the difference between the Outright Price and SV/OH Exchange Price with the core returned as-is to the customer.

Here is an example of such a transaction:

$1000 Exchange Price charged to customer
$1000 x .8 = $800 Maximum Allowable core repair charge or Repair Cap

$2000 Cost to repair core unit
- $800 Less Core repair cap
$1200 Additional billing amount.

2200.00 Total Cost of transaction

Please Note:
SEA offers exchange on new items as well. However, repair cap as indicated above is still based on SV/OH exchange price.

See this PDF document for a detailed listing of currently available IFR GPS systems and a brief comparison.

Newly Overhauled parts obtained from Garmin are designated with an N in their part number. This usually follows the 010- in the part number. As with most Garmin 010 part numbers, the N part numbers are for ordering purposes only and do not actually appear on the dataplate of the unit.
No, the GPS-155XL is not a direct replacement for the GPS-155. Both units have the same dimensions and use the same 37 pin and 26 pin connectors. However, some of the pin designations are different between the 2 systems. Minor rewiring would be required.