1979 series, 5.00 and 20.00 dollars
first didgit represents the denomination:
3 is for the 5.00
5 is for the 20.00
2nd didgit represents the printer:
0, or 2, CBN
6 is the BABN - only the 20s have two printers
the next two digits are the series numbers
the last 7 represent the serial number.
In theory you can have both radars and "super" radars.
30000000003 would be a super radar ..
5.00 note, from the CBN, 00 series, serial nr 0000003
a normal radar might be:
30021239321
and so on; hope this helps
general rule: just look at the last 7 didgits
and if you have one and are willing to sell, please let me know..