Modified the FT8 crc12 using XOR 42 so we do not interfere with standard FT8 stations

2018-08-04 23:13:01 -04:00
parent c1b374b858
commit e3ae807c85
5 changed files with 5 additions and 0 deletions
@@ -91,6 +91,7 @@ allocate ( rxdata(N), llr(N) )

  i1Msg8BitBytes(10:11)=0
  checksum = crc12 (c_loc (i1Msg8BitBytes), 11)
+  checksum = xor(checksum, 42)
 ! For reference, the next 3 lines show how to check the CRC
  i1Msg8BitBytes(10)=checksum/256
  i1Msg8BitBytes(11)=iand (checksum,255)