06 – Safety Channel Vessel Assist
09 – Santa Cruz Harbor
11 – Fisherman’s Channel
13 – Bridge to Bridge
19 – Vessel Traffic; SF Bay
16 – Hailing & Emergency
21, 22, 23 – Reserved For Coast Guard
81, 82, 83 – Coast Guard UP
80 – Whale Watching

6db Gain Antenna is best for recreational communication.