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Old 14 August 2012, 17:12   #31
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Have Standard Horizon HX751 & HX851. The 751 is an excellent all round radio, little larger than some but better functionality. The battery on the 851 isn't great but as mentioned before you can just turn the GPS off in general. You only need it when transmitting DSC distress when it will come on automatically. On a small boat it can even be used as a plotter!
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Old 14 August 2012, 18:25   #32
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switching ur gps on only when you hit the big red button is a flawed plan. it can take 3 minutes to lock on sats to get a position. If you are on fire 3 mins is too long! So the red button will send an old pos instead. On a Rib doing 30kts if you've not had the GPS on for an hour thats not a whole lotta use! (Even 10miles out is a lot of searching (thats a 10m radius so potentially 314sq.miles) for a 4 or 5m rib especially if there are several other 4 or 5m ribs to look at. If the worst happened you might be 4 or 5 heads in the water in 314sq mile!

I have two M31s that both leaked like seives Icome replaced both immediately and the second time upgraded to a Euro M5 I think it is. It lives in the bottom of a boat in 6inches of water quite regularly.

As for charging from an invertor from your caravan solar charged battery - just get the cigarette lighter connection for the charger and run direct - my invertor sucks the life out of my 100Ah battery but the radio charges all the time quite happy. ... not sure if anyone's found a good waterproof charging mechanism to power it from the boat...

Use SHs regularly and several other icom versions all good.

when i bought mine floating ones didn't exist... that would be a must have these days.
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Old 14 August 2012, 18:29   #33
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Quote:
Originally Posted by ShinyShoe View Post
switching ur gps on only when you hit the big red button is a flawed plan. it can take 3 minutes to lock on sats to get a position. If you are on fire 3 mins is too long! So the red button will send an old pos instead. On a Rib doing 30kts if you've not had the GPS on for an hour thats not a whole lotta use! (Even 10miles out is a lot of searching (thats a 10m radius so potentially 314sq.miles) for a 4 or 5m rib especially if there are several other 4 or 5m ribs to look at. If the worst happened you might be 4 or 5 heads in the water in 314sq mile!
No it won't send an old position. Besides, if it was on fire then I wouldn't be using the handheld DSC, I would still be on the boat and therefore able to use flares/fixed DSC/AIS not to mention PLB permanently on my lifejacket
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Old 15 August 2012, 03:44   #34
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Quote:
Originally Posted by ShinyShoe View Post
switching ur gps on only when you hit the big red button is a flawed plan. it can take 3 minutes to lock on sats to get a position. If you are on fire 3 mins is too long! So the red button will send an old pos instead. On a Rib doing 30kts if you've not had the GPS on for an hour thats not a whole lotta use!
Well whatever DSC Handheld you use, I suggest you upgrade. It sounds more like a liability than a safety device. As Gotchi says, the Standard Horizon 851 does not suffer with any of those problems...

Even if a DSC radio were to send an old location, it would mark it as such and the speed and direction info would still be valuable to the rescuers.
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Old 15 August 2012, 03:48   #35
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Speak to Avocet about Icom resilience. He sent his through the washing machine and it still worked fine afterwards. A Bold thing to do
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Old 15 August 2012, 04:39   #36
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And the only damage was that the Ariel is no longer as straight as it once was!
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Old 15 August 2012, 04:56   #37
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And the only damage was that the Ariel is no longer as straight as it once was!
Daz good Ya!
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Old 15 August 2012, 05:10   #38
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Hi All

In case it helps, from completely switched off (for 5 days) my HX851 got a GPS fix just now in 38 seconds - the spec says 1 min typical from a "cold" start, and 40 seconds from a "warm" start.

The GPS power save mode allows you to set the GPS fix frequency from every 5 seconds to every 5 mins, which does make a big difference on battery drain, at no real sacrifice from how I use it.

And even at a minute from cold, I'd say still much quicker than sorting out an accurate position fix from a chart and verbally passing that on in an emergency situation.

Hope that helps

Steve
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Old 31 August 2012, 07:41   #39
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As an update I bought an ICOM M71. Bit more than what I really wanted to pay, but Ive bought cheap in the past and had to pay again. Should see me right for a good few years.

Cheers for all the advice.

Buzzin
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Old 31 August 2012, 08:00   #40
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Speak to Avocet about Icom resilience. He sent his through the washing machine and it still worked fine afterwards. A Bold thing to do
Was reception a lot cleaner afterwards?
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