1630, in later years i am aware of, post WWII for sure, 1630 was a west coast Canada boat frequency.
Boat radios are drastically being thinned out, but you sometimes saw them even in the Seattle area

with one channel on 1630 kcs.  I recall hearing Bull Harbor BC with wx broadcasts on 1630. You could

easily hear it in Seattle in winter even on a car radio.

-Hue Miller