User's Guide
Table Of Contents
- 1 Introduction
- 1.1 Audience
- 1.2 Overview
- 1.3 Envoy CMU Features
- 1.4 Configuration Options for Envoy
- 2 Operation of Envoy
- 3 CPDLC Operations
- 3.1 Log On
- 3.2 Logoff
- 3.3 Lost Connection
- 3.4 Typical Message Composition
- 3.5 ATC Menu
- 3.5.1 ATC Request Menu – FANS 1/A+ and ATN B1 CPDLC Common
- 3.5.2 ATC REPORT Menu
- 3.5.3 WHEN CAN WE EXPECT
- 3.5.4 POS REPORT Message – FANS 1/A+
- 3.5.5 EMERGENCY (MAYDAY) Message – FANS 1/A+
- 3.5.6 ATC MSG LOG
- 3.5.7 CLEARANCE REQUESTS – FANS 1/A+
- 3.5.8 FREE TEXT 1/2
- 3.5.9 ATC VOICE CONTACT Message – FANS 1/A+
- 3.5.10 Cancel EMERGENCY, Cancel ADS
- 3.5.11 Flight Plan Transactions and Monitoring
- 4 Automatic Dependent Surveillance (ADS)
- 5 ACARS Operations
- 6 MAINTENANCE Menu
- Appendix A Acronyms
- Appendix B AFN Messages
- Appendix C Supported CPDLC Messages
- Appendix D ADS-C Tags
- Appendix E ACARS Message Labels
- Appendix F ATSU Call Signs (ICAO, IATA)
- Appendix G Fault Management
User Guide for the Envoy Data Link
Document Number: UG-15000 Rev. A Page 78 of 173
Position Report
Use the POSITION REPORT page to construct an ACARS POSITION REPORT downlink. This
report is also available from the EN ROUTE menu and the ACARS Service Messages page.
Figure 5-12 POSITION REPORT
The fields on this report can be autopopulated from the FMC, but may be entered manually if no
data is available from the FMC.
Table 5-10 ACARS POSITION REPORT Fields
LSK
Label
Description
ALT
Read-only flight level.
L1
POS
Required. Autopopulated or manually input. Current position** Acceptable inputs:
• FIX (4 or 5 alpha characters)
• NAVAID (numeric or alphanumeric, 3 alpha followed by NB)
• Airport ID (ICAO)
L2
NEXT
Optional. Autopopulated or manually input. Next waypoint**. Acceptable inputs
• FIX (4 or 5 alpha characters)
• NAVAID (numeric or alphanumeric, 3 alpha followed by NB)
• Airport ID(ICAO)
L3
SPEED
Required. Autopopulated. Mach value.
L4
TEMP
Optional. Autopopulated. Degrees Celsius
L5
SKY COND
Optional. Selection list: CLEAR, FEW, SCATTERED, BROKEN, OVERCAST, or
blank (default)
R1
ATA
Required. Autopopulated. Time at current position.
R2
ETA
Optional. Autopopulated or manually input. Estimated time at next waypoint.
R3
FOB*100
Optional. Autopopulated or manually input. Fuel on Board in LB or KG.
R4
WIND
Optional. Autopopulated. Wind direction/speed.
R5
TURB
Optional. Turbulence. Selection list: NONE, LIGHT, MODERATE, SEVERE,
EXTREME, or blank (default).
R6
SEND
When all required data has been provided, SEND action appears. Press LSK R5 to
downlink the report.
For related functionality, see 3.5.4 POS REPORT Message – FANS 1/A+.
Oceanic Clr Request
See Section 5.4.1.5