VDL2 Datalink

Decode VDL Mode 2 (VHF Digital Link) messages on ~136 MHz. VDL2 is the digital successor to ACARS, using D8PSK modulation for higher throughput aircraft datalink communications.

Region & Frequencies

Status

Status: Standby

Messages: 0

Antenna Guide

VHF Airband (~137 MHz) — stock SDR antenna may work at close range

Simple Dipole
  • Element length: ~55 cm each (quarter-wave at 137 MHz)
  • Material: Wire, coat hanger, or copper rod
  • Orientation: Vertical (airband is vertically polarized)
  • Placement: Outdoors, as high as possible with clear sky view
Quick Reference
Primary (worldwide) 136.975 MHz
Quarter-wave length 55 cm
Modulation D8PSK 31.5 kbps
Bandwidth 25 kHz
Polarization Vertical