Violation
6A2 Weather information is commonly sent by radio in map form by one-way facsimile transmission. Two common parameters which must be set by the receiving station are:
Index of cooperation (IOC), and revolutions per minute (RPM)
Lines-per-inch (LPI), and primary scan direction (PSD)
Black-mode signal (BMS), and frequency jitter tolerance (FJT)
Frequency shift (FS), and phase response pattern (PRP)