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 34 of 173
Step 2. Message Composition
On ATC SPEED REQ, enter speed, such as:
• 60 (50 to 99 in increments of 1)
• 350 (100 to 400 KTS in increments of 1)
• 7 (5 to 9 in increments of 1)
• .78M
100 KTS 100 to 400 in increments of 1) (IAS)
Press LSK L1 to upselect the input at the
scratchpad. Optionally select a DUE TO reason by
pressing LSK R1:
• <blank> (default)
• WEATHER
• PERFORMANCE
When required field(s) are filled, VERIFY appears at
LSK R6.
Step 3. Verify and comment
Press LSK R6.
The VERIFY SPEED REQUEST shows the
constructed message with the formatted Mach value.
Optionally press LSK L3 to add a free text
justification for the speed request.
Press LSK R6 to send the request.
Step 4. Sending/Open/Closed Status
Upon send, the ATC MSG LOG displays D
(downlink), timestamp ID and status, which
transitions from SENDING to OPEN when
automated ground network acknowledgement
(AGNS) is received.