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Old 14 June 2005, 14:30   #11
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Originally Posted by Seaharrier
The problem with all those electronical protections is the power supply. If you don't use your boat for more than 2 weeks the battery will be dead...
Come off it - a mobile phone on standby uses harldy any current - a 100amp battery should last quite some time - in 2 weeks will only use about 2 amps!!!!
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Old 14 June 2005, 17:26   #12
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I like this solution

Two gaurd dogs !!!
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Old 14 June 2005, 17:50   #13
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Remember GSM only works upto about 5 miles. Sometimes its more, sometimes less.
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Old 14 June 2005, 18:01   #14
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I like this solution

Two gaurd dogs !!!
Yeah but no but...

I reckon those two would just lick a potential thief to death!
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Old 14 June 2005, 18:29   #15
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Jon, try pm'ing Simon666, he has bought one of those units..

Not sure about the 5 mile range either.. I regularly use my mobile on the cross channel ferry, before the Isle of Wight is visible.. But as it will warn you the second the boat has been moved, subsequent action would depend on the Police, and their ability to find summat on the water..
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Old 14 June 2005, 19:39   #16
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Quote:
Originally Posted by codprawn
Come off it - a mobile phone on standby uses harldy any current - a 100amp battery should last quite some time - in 2 weeks will only use about 2 amps!!!!
Ah, but if you use a gps based system, you're going to have to power that too. If you're only draining 100mA, in 2 weeks you'll have used more than 33amps. Then there's the normal discharge of a static battery and then there may be auto-sensing bilge pumps too. I reckon you do have to take power consumption into consideration.
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Old 14 June 2005, 21:56   #17
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Ah, but if you use a gps based system, you're going to have to power that too. If you're only draining 100mA, in 2 weeks you'll have used more than 33amps. Then there's the normal discharge of a static battery and then there may be auto-sensing bilge pumps too. I reckon you do have to take power consumption into consideration.
You do have a point - which is why I have bought a 50w solar panel.....
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Old 15 June 2005, 07:58   #18
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... which is why I have bought a 50w solar panel.....
Didja, how big is it?
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Old 15 June 2005, 08:11   #19
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I've just bought one of these with a connection to my twin batt set up. Hopefully it will last for quite a while. It has a mic to listen in which could be a good laugh and be completely useless!!!

Anyway if you boat is stolen the phone companies can work out exactly where you are but this is not available to the public. You would have to rely on the police having the time and inclination to do this. (Unlikely! )

Will let you know what its like when its in!!

Chris

PS dont tell anyone!!
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Old 15 June 2005, 08:38   #20
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Didja, how big is it?

Sorry it is 15W not 50W!!! Bit of a difference - it is about 12"x24" - waterproof and ready to connect. Had it from Maplin in a sale for 39.95 - they are back up to about 130 with them - cheapest I could find is

http://www.northerntooluk.com/cleara...lt.asp?id=1421

I have tried it and seems to work well - will chuck 12amps a day into your battery which is better than nothing.
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