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Old 23-01-2013, 09:07   #31
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Re: Power Supply for SSB in a 24v Boat

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Originally Posted by SoonerSailor View Post
Dockhead -

You have good reasons for using a separate dedicated battery, but if a 24v to 12v convertor is located close to your radio, you should see almost no voltage drop with a well designed unit even at rated current output.
My only concern would be RFI from the convertor, and I don't know about their 24v to 12v convertors, but some of the TGE 12V boost regulators have an RF sense feature such that they are active only on transmit, but shut down on receive to eliminate any possibility of RFI.

Chip
Thanks Chip! The ones I have looked at, even expensive ones, have quite a bit of voltage sag at rated output. And I think I don't want to screw around with extra RFI problems -- I'm a beginner with HR radio. I think I'll go with the batt if I can find an appropriate one. Thanks for all your help.
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Old 23-01-2013, 10:27   #32
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Re: Power Supply for SSB in a 24v Boat

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Thanks Chip! The ones I have looked at, even expensive ones, have quite a bit of voltage sag at rated output. And I think I don't want to screw around with extra RFI problems -- I'm a beginner with HR radio. I think I'll go with the batt if I can find an appropriate one. Thanks for all your help.
I thought I gave you this link, but if not, here are 3 to choose from.
Balqon - Advanced Transportation Solution
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Old 23-01-2013, 10:59   #33
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Re: Power Supply for SSB in a 24v Boat

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Originally Posted by deckofficer View Post
I thought I gave you this link, but if not, here are 3 to choose from.
Balqon - Advanced Transportation Solution
Thanks, you did, and the 40 amp/hour one you suggested looks perfect. Unfortunately it turns out that it is strictly forbidden to carry batts in your luggage. I wrote to Balqon and asked if the ship to the UK.
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