At the user manual of Automatic Antenna Track system, https://ivcan.com/wp-content/uploads/AAT-User-Manual.pdf, at page 11, it mentioned Vlink and Dlink.
| Display Item | Description |
|---|---|
| GPS/Local GPS | GPS Satellites locked. If an external GPS is connected, GPS/LocalGPS will be displayed in 12/11 formation (GPS=12, Local=11) |
| Batt | Batt (Voltage of the main battery) will be displayed alternatively here. |
| Dist | Distance of the plane (Not Available before SetHome) |
| Alt | Altitude of the plane (Not Available before SetHome) |
| Azim | Azimuth of the plane (Not Available before SetHome) |
| VLink/DLink | Video/Data downlink quality. (in %, ref to the “Downlink” chapter) |
| Dir/EDir | Current heading diretion of the tracker. If an external compass is connected, EDir will be displayed alternatively |
Crossbow AAT needs both these 2 MAVLink messages to track.
MAVLINK_MSG_ID_GPS_RAW_INT
MAVLINK_MSG_ID_GLOBAL_POSITION_INT
If the Crossbow AAT receives some correct MAVLink data packs (Heartbeat?) but not able to find
the above 2 messages, it will display “DLink:1% msg?” to remind you to check if the above 2
messages are sent at 1Hz or a higher frequency.
Table of Contents
Q1: Why does the menu sometimes show Vlink and sometimes Dlink?
A1: The default display is Vlink, If the data is correct, Dlink will be displayed. Pleae check whether the factory-coredata-rx parameters are increasing. Please take a look at the received data from the Rx.
If the data fails to show an increase, then you should try to change and test the TX and RX cables against one another to identify the problem.
Q2: The functionality of the Yaw feature on the Menu of the AAT Automatic Antenna Track system, what could be causing it to not move?
A2: This Yaw menu’s functionality and validation are contingent upon the tracking process; it is only effective and validated while tracking is active.
This parameter means, how many degrees offset based the original tracking direction
Q3: I am curious about why the flight control system failed to transmit the necessary real-time operational data to the AAT.
A3: Are the baud rates that you have configured identical for both the data link and the AAT system? Please check it, default setting of AAT is 57600.
We kindly request that you send us a picture or video of your connection diagram; our engineer will then be able to analyze it, identify the potential issue, and provide you with a suitable solution.
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