Here is a clip from FCC Rule 90-20 of legitimate frequencies:
154.740...................... ......do....... ........... PP
154.7475..................... ......do....... ........... PP
154.755...................... ......do....... ........... PP
154.7625..................... ......do....... ........... PP
154.770...................... Mobile......... ........... PP
154.7775..................... ......do....... ........... PP
154.785...................... Base or mobile. ........... PP
154.7925..................... ......do....... ........... PP
154.800...................... ......do....... ........... PP
154.8075..................... ......do....... ........... PP
154.815...................... ......do....... ........... PP
154.8225..................... ......do....... ........... PP
154.830...................... Mobile......... ........... PP