ARINC429 in channel RX5 Radar Altimeter uses ARINC 429 Label 164 The PFD expects the label to conform to the ARINC 429 specification with an equipment ID of 007, which means: 16 significant bits (bits 28-13), with a scale of 0.125 feet per bit and a maximum value of 8192 feet (per the data format) The PFD wil…