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Old 18-04-2011, 16:55   #31
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Posts: 9
Re: Hate to Even Ask, But . . . Extending WiFi Range ?

You could also move next door to Berkeley who offers free WIFI

Aries 32 is offline   Reply With Quote
Old 09-08-2011, 08:48   #32
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Join Date: Mar 2011
Location: Paradise Island Bahamas
Boat: Amel 54
Posts: 9
Thumbs up Re: Hate to Even Ask, But . . . Extending WiFi Range ?

As advised I will give report after purchase.

Bought "Island Time" 3 months ago, fast delivery, goods received and after a few phone calls with supplier got the system working.
Picked up about 24 signals, the marina wifi signal has been boosted from 1 bar to max 4 bars.
Plugged the signal into Mac Airport and have up to 3 computers running at the same time.
Excellent performance.
Excellent service from supplier.
Definitely recommend for use as a booster.

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Old 09-08-2011, 16:05   #33
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Join Date: May 2011
Boat: Gulfstar 50
Posts: 658
Re: Hate to Even Ask, But . . . Extending WiFi Range ?

Being a geek I tend to put 15 dBi gain antennas on the research vessels I work with. These feed LMR400, LMR600 or LMR900 coax depending on the cable run.

I've not seen many problems with the beamwidth of the 15 dBi antennas. But then again big ships don't heel too much generally. And, on my sailboat I typically only use wifi at anchor or dock. No need to make the antenna too high for a mile or so. Just 8 feet off the water could be all that is needed.

Hyperlink technologies (L-com) has a good selection of antennas, cable and pigtails (to match you wifi card)

The max power (ERP) in the US is 4 watts. That is a 6 dB antenna and a 1 watt transmitter, 9 dB antenna and a 500 mW transmitter or a 12 dB antenna and 250 mW transmatter or 125 mW and a 15 dB antenna.

You can actually fudge these figures a bit when you take into account cable losses but for the most part that is splitting hair.


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