2-byte Vertical Velocity Format (DB_VVEL2)
Vertical velocity is stored in a signed 16-bits number scaled to 0.01 meters/second. Positive number indicate upward motion, negative downward.
| -32768 | 327.68 m/s upward motion |
| 0 | 0 motion |
| 1 | 0.01 m/s fall speed |
| 32766 | 327.66 m/s fall speed |
| 32767 | Area not scanned |