At the risk of unnecessarily reviving an older thread, I didn't see any mention of the fact that the regs require you to monitor channel 16, at least up here north of the border. I distinctly recall when I did my license maybe 10 years ago (I need to do the course again for DSC) that I was required to monitor channel 16, and I try to do so, even if the idle chatter can be bloody annoying. I have a RAM in the cockpit that means I don't have to keep the volume on the unit the cabin cranked to hear it.
I just checked the Canada Shipping Act's regs with respect to
VHFs. While the reg discusses only "ships," my understanding was that if you had a
VHF station and/or operators license you were expected to follow the rule of maintaining a constant listening watch as per below:
8. (1) Subject to subsection (3), on every ship a listening watch on a
VHF radiotelephone receiver shall be maintained continuously during the period commencing fifteen minutes before the ship is underway and terminating when the ship is
(a) securely anchored, moored or made fast to the shore or secured by any means to the bottom; and
(b) in a place where its presence does not constitute a hazard to passing ships.
(2) A
VHF radiotelephone receiver, referred to in subsection (1), on a ship described in column I of an item of the schedule shall be set to the channel set out in column II of that item and shall operate with sufficient gain to permit it to receive normal communications on that channel if other
radio transmissions do not block out those communications by capture or override.
(3) Where a ship is not fitted with an additional or built-in facility that permits continuous or sequential monitoring of Channel 16 (156.8 MHz), the listening watch required by subsection (1) may be interrupted for short periods while the radiotelephone installation is being used to transmit or receive communications on another channel authorized in the licence for that installation.
I'd be interested to know what others think of this obligation.
Station licenses aren't required by Canadian recreational craft if they remain in Canadian waters. But an operators license is required. Also, things differ slightly in that in the US apparently, 9 is a "calling" channel, while it has no such formal distinction up here. There are other channel allocation differences.