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#292620 - 06/30/19 02:30 AM Re: OVERBOARD VEST [Re: chaosmagnet]
Russ Online   content
Geezer

Registered: 06/02/06
Posts: 5127
Loc: SOCAL
The Marine VHF handhelds Iíve looked at were all waterproof. Mine was the Icom M72 Marine Transceiver.
Quote:
The IC-M72 offers Icomís best-ever protection against water intrusion. This radio has been tested to survive after being submersed in 1.5m (4.9ft) depth of water for 30 minutes.

It doesnít float (some radios do float), but itís lashed to the flotation vest so it canít get away; all the gear was attached with short lanyards. The PLB was lashed through its pouch to the vest.

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#292621 - 06/30/19 04:28 AM Re: OVERBOARD VEST [Re: CANOEDOGS]
chaosmagnet Offline
Sheriff
Carpal Tunnel

Registered: 12/03/09
Posts: 3133
Loc: USA
Icom makes great radios.

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#292623 - 06/30/19 02:58 PM Re: OVERBOARD VEST [Re: chaosmagnet]
Russ Online   content
Geezer

Registered: 06/02/06
Posts: 5127
Loc: SOCAL
I got the idea to include a Marine VHF radio after reading about some guy off the coast of Florida who hit a wave wrong and found himself in the water with lots of stuff and no boat. His VHF handheld was of the floating variety. Using it he was able to contact a fishing boat using Ch.16 (every large boat monitors Ch.16) and they had him out of the water before the Coast Guard could respond.

Iím not convinced an aviation handheld such as the Icom A16 or A25 VHF Airband Handheld radios would contact anyone who could actually assist. An airliner at altitude (35K Ft aka 6.6 miles plus) may not hear the radio call ó donít know, never tried it. Private pilots at lower altitudes may or may not monitor 121.5 (VHF guard). The VHF radios Iíve used had good antennas and a ground plane, and they were still noisy. Besides, mayday calls would/should have preceded water entry. After a ditch, the Marine VHF and PLB combined made more sense.

Another thing my survival vest is missing is webbing with a D-ring that can serve as a lifting point. Fortunately, everything Iíve seen shows that USCG prefers baskets and such rather than the simple gated hook I used during training, so a lifting point is no longer needed.

Glad I donít do that any longer.

Edit: If I were in a canoe or small boat my choice of radio might change ó depends. On a largish lake (Great Lakes come to mind) a Marine VHF is probably the way to go. On a river or someplace where the Coast Guard is not primary, a VHF handheld may be more useful for contacting Civil Air Patrol or other aircraft who may respond to your PLB. Before buying a radio, think about giving SAR a clue and get a PLB.


Edited by Russ (06/30/19 03:14 PM)

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#292624 - 06/30/19 04:44 PM Re: OVERBOARD VEST [Re: CANOEDOGS]
chaosmagnet Offline
Sheriff
Carpal Tunnel

Registered: 12/03/09
Posts: 3133
Loc: USA
I would definitely invest in a quality marine VHF handheld if I were spending a lot of time on the water. And I agree, I would take that over an aviation handheld every time. I expect that SAR aircraft would be listening on marine channel 16, especially if they work near bodies of water.

Many years ago I took a number of flights in small private aircraft, and I seem to remember that one of the radios was always set to 121.5 ó I was and am very interested in radios and aviation, and I paid attention to that. Supposedly commercial aircraft maintain a listening watch on that frequency. If the aircraft is in view Iíd also expect to be able to communicate with it on a handheld. VHF generally has excellent range when there isnít vegetation, buildings or terrain in the way, even at low power. Obviously, donít transmit on aviation frequencies outside of a bona fide emergency or a properly licensed and legal use.

My ham radio handhelds are all programmed for marine VHF. Itís legal to listen to, and in a bona fide emergency it could be legal to transmit. Aviation VHF uses AM where marine VHF uses FM. I donít remember ever seeing a handheld ham radio that could transmit using AM.

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#292625 - 06/30/19 05:53 PM Re: OVERBOARD VEST [Re: chaosmagnet]
Russ Online   content
Geezer

Registered: 06/02/06
Posts: 5127
Loc: SOCAL
I donít recall it being a requirement for General Aviation to monitor the 121.5 MHz International Air Distress (IAD) freq. Our primary UHF radio had a ďTR&GĒ (transmit/receive & guard) selection which would allow us to transmit & receive on whatever UHF frequency we dialed in, and would concurrently receive on 243.0 MHz. I donít recall that selection on the VHF radio in the Cessna I flew. A second radio could be tuned to 121.5, but many small General Aviation aircraft only have one radio. Point being, 121.5/IAD is unreliable to contact GA aircraft.

OTOH, GA aircraft using 121.5 should be able to contact ďmost air traffic control towers, FSS services, national air traffic control centers, military air defense and other flight and emergency services, as well as by many commercial aircraft.Ē See Aircraft emergency frequency on wikiP

If thereís a GA pilot in the house please correct me if Iím mistaken.

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#292627 - 06/30/19 11:15 PM Re: OVERBOARD VEST [Re: CANOEDOGS]
teacher Offline
Old Hand

Registered: 12/14/05
Posts: 769
Good points.
Thank you.

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#292640 - 07/02/19 02:33 AM Re: OVERBOARD VEST [Re: Russ]
hikermor Offline
Geezer in Chief
Geezer

Registered: 08/26/06
Posts: 6894
Loc: southern Cal
I am surprised that a knife, kept handy, hasn't been mentioned. My sea kayaking rig is comprised of a knife, in an inverted scabbard, and a signal mirror in a pocket. The knife is very handy in a kelp forest environment with distinct possibility of entanglement in other objects.


Edited by hikermor (07/02/19 02:33 AM)
_________________________
Geezer in Chief

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#292643 - 07/02/19 02:56 AM Re: OVERBOARD VEST [Re: hikermor]
Russ Online   content
Geezer

Registered: 06/02/06
Posts: 5127
Loc: SOCAL
Since you asked, the knife in my vest was a Spyderco Atlantic Salt, a fully serrated folder designed for use in saltwater.


Edited by Russ (07/02/19 02:32 PM)
Edit Reason: url

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#292762 - 07/16/19 08:38 PM Re: OVERBOARD VEST [Re: chaosmagnet]
teacher Offline
Old Hand

Registered: 12/14/05
Posts: 769
Man tries to jet ski on Lake Superior.

A jet ski usually doesn't have
extra gas
a compass
a marine radio
a jacket
charts

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#292764 - 07/16/19 09:01 PM Re: OVERBOARD VEST [Re: teacher]
Russ Online   content
Geezer

Registered: 06/02/06
Posts: 5127
Loc: SOCAL
It would be interesting (from an intellectual standpoint) to know what gear he had besides his cellphone and what he was using for navigation. From the map at the link, he was way off course. A course of 090 (true) from Grand Portage takes you to Isle Royale. Based on that map he took a course of 150 true (give or take).

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