IFR FM/AM-1200A Operation Manual page 70

4-'l-8 Executing STEP (RF and TONE) Function
This function steps the last executed frequency up or down at the pre-
programmed increment.
RF STEP Function
KEY ENTRY VFD (37) INDICATES
EXEC
-
S TEP
2ND
1!!11
FUNCT
EXEC
-
S TEP
Depress
+
or
+
Key to step the RF Frequency up or down by the pre-
programmed increment.
4 -2 5
02