Zitat aus Joint Laser Designation Procedures (Joint Pub 3-09.1)
Designator and Seeker Pulse Codes. The designator and seeker
pulse codes use a truncated decimal system that uses the numerical
digits 1 through 8, and the codes are directly correlated to a
specific PRF. Depending on the laser equipment, either a three- or
four-digit code can be set. Three-digit code equipment settings
range from 111 to 788. Four-digit code equipment settings range from
1111 to 1788. The three-and four-digit code equipment is
compatible, and any mix of equipment can be used in all types of
laser operations. However, when using a mix of three- and
four-digit code equipment, all personnel must understand that the
first digit of a four-digit code is always set to numerical digit l.
The remaining three digits will be set to match the three digits of
the three-digit code equipment. As an example, a three-digit code
of 657 would be set to 1657 on a four-digit code system or vice
versa.