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ideas about vhf radios

Old 03-21-2007, 11:44 AM
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Default ideas about vhf radios

i will be fishing out to 50-75 miles any sugestions on a vhf
Old 03-21-2007, 12:31 PM
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Default Re: ideas about vhf radios

VHF radio is "line of sight" and if you are at that range, no VHF radio with theoretically range that far. The maximum VHF transmit power is 25 watts, and all of the fixed mount VHF radios will put that out.

More important is a good VHF antenna. Matching the top of the line VHF radio to a $49 antenna will give you worse results than connecting a $99 VHF to a $250 antenna.

My recommendation for best range is going with either a Digital or Shakespeare Galaxy 5225-FLT or 5225-XP antenna matched to an ICOM M604 or an equivalent Standard Horizon radio. Mount the antenna as high as possible, and you just might range the USCG on a good day if their antenna is way up there.

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Old 03-21-2007, 12:32 PM
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Default RE: ideas about vhf radios

I would recommend Icom vhf radios, but the radio is not as important as the antenna. If you are going 50-75 miles mount the antenna has high as possible and get a high quality 8' or even 9' vhf antenna. I would also reccommend and EPIRB and or a SAT phone too for that distance.
Old 03-21-2007, 06:39 PM
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Default Re: ideas about vhf radios

marinerjoe - 3/21/2007 12:31 PM

VHF radio is "line of sight" and if you are at that range, no VHF radio with theoretically range that far. The maximum VHF transmit power is 25 watts, and all of the fixed mount VHF radios will put that out.

More important is a good VHF antenna. Matching the top of the line VHF radio to a $49 antenna will give you worse results than connecting a $99 VHF to a $250 antenna.

My recommendation for best range is going with either a Digital or Shakespeare Galaxy 5225-FLT or 5225-XP antenna matched to an ICOM M604 or an equivalent Standard Horizon radio. Mount the antenna as high as possible, and you just might range the USCG on a good day if their antenna is way up there.

Joe
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I have heard that fact and generally believe it...................but.................How come when I am in the Canyons off of Central NJ, I can hear the chick in Farley state Marina directing boats on where to park in Atlantic City?????? Generally speaking 70-80 miles away?????
Old 03-21-2007, 07:44 PM
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Default Re: ideas about vhf radios

How high is the Marina antenna. It's probably on the roof... wherever it is, it is probably much higher than the one on your boat.
Old 03-21-2007, 11:41 PM
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Default Re: ideas about vhf radios


70-80 Miles on VHF in the 150 Mhz range? More than likely this occurred during the summer months and is called a tropo atmospheric condition (Ducting). Some folks call it skip. These conditions generally happen in the summer months at this frequency spectrum. These types of distances have no guarantee and very low probability of occurring in the VHF/UHF spectrum. Distances at this range can happen but more than likley will not when you have an emergency.

Get a ham Licence as Morse Code is no longer a requirement and fire up as 70-80 miles is pretty easily accomplished in the HF 1.8 - 30 mhz range. Good Luck Dit Dit

Call: N2TX
Old 03-22-2007, 06:40 AM
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Default Re: ideas about vhf radios

Shootie is absolutely correct. Ducting can cause some incredible ranges. For example, I've heard the Coast Guard from Chincoteague at the mouth of the Chesapeake Bay. Their antenna is WAY UP THERE, and just because I can hear them doesn't mean that they would hear me.

I plan on a max of 20 - 25 miles VHF to a shore station. If I get more, great. For ship to ship (or boat to boat), plan on WAY less. Especially on busy channels, like VHF 68 for us here.

That's why I'm so excited about getting the local folks I speak with on a regular basis up on DSC. You can make a digital DSC call that will shift radios to a working channel without a word being spoken. There are many other benefits also, but that's beyond the scope of this thread.

Bottom line, and I think all will agree, for the best VHF performance, go for the best antenna you can afford, and then look at the radio. For longer range, mount the antenna as high as possible. And for the longest range, HF (requires an FCC license) is the ultimate.

Joe
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Old 03-22-2007, 08:04 PM
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Default RE: ideas about vhf radios

bluffman2 - 3/21/2007 11:44 AM

i will be fishing out to 50-75 miles any sugestions on a vhf
You are going to need one helluva tall antenna.

See:

Marine VHF Radio Communications
by James W. Hebert
http://continuouswave.com/whaler/reference/VHF.html

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