Alta products use IRIG Standard 200-04 and support these IRIG time codes:
IRIG-B002 (Format B, DC Level Shift, no index count interval, BCD Time Of Year)
IRIG-B006 (Format B, DC Level Shift, no index count interval, BCD Time Of Year, BCD Year)
IRIG-B122 (Format B, AM, 1KHz carrier, BCD Time Of Year)
IRIG-B126 (Format B, AM, 1KHz carrier, BCD Time Of Year, BCD Year)
The Alta IRIG decoder does not use the coded expressions for Control Flags (CF) or
Straight Binary Seconds (SBS).
WARNING: The older IRIG Standard 200-98 did not include BCD Year and used the bits in P5 through P8 for Control Flags (CF). The newer IRIG Standard 200-04 reserves P5 through P6 for BCD Year and restricts Control Flags to P6 through P8. Non-zero Control Flag bits in P5 through P6 will be seen as BCD Year by the Alta IRIG decoder.
