| 2 | |
| 3 | == Message header == |
| 4 | ||=Data field=||=DF NUMBER=||=DATA TYPE=||=NO. OF BITS=||=NOTES=|| |
| 5 | || Message Number || DF002 || uint12 || 12 || 4075 (proprietary number for this purpose) || |
| 6 | || Reference Station ID || DF003 || uint12 || 12 || stream identification || |
| 7 | || Reserved field 1 || || uint2 || 2 || reserved bits, maybe used to separate different type 4075 message, always 0 for NDF || |
| 8 | || Frame Count (FC) || || uint6 || 6 || Number of frame entries to follow || |
| 9 | || Frame Data || || || depends on FC and frame size || frame data according to following table || |
| 10 | |
| 11 | == Frame Entry == |
| 12 | |
| 13 | ||=Data field=||=DF NUMBER=||=DATA TYPE=||=NO. OF BITS=||=NOTES=|| |