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#11
posted to rec.boats.electronics
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Changing VHF antenna location...? line of sight calculator webpage
Larry wrote:
snip And you have to factor in the damned marinas and their 70' antenna towers running 25 watts to talk to the motoryacht 200 ft away coming towards their docks. FCC should restrict marinas to antennas 20' off the water running 1/2 watt.....or walkie talkies. ?? You're joking right? Did you know that more Watts gives them more range? And that people can sometimes reasonably expect to communicate with things that are beyond their visual (not radio) line of sight? What would really make more sense to me is to make everyone have a radio that shifts to the low power transmit mode when they transmit after a received signal had a power level above a certain point. Add a LED so the people can tell which mode they are transmitting in. And also give them a power over ride control that will let them cancel the automated feature when they feel the extra power is appropriate. Someone is always going to be "too close" and someone else is always going to "too far away". And how about this? A radio that will not transmit if the antenna loop shows an resistance above a certain level. That would get the folks with bad installs and weathered connectors off the air. Oh yeah, and add a SWR monitoring circuit too! If the SWR is more than 1.5:1 it won't transmit. Jack -- Jack Erbes in Ellsworth, Maine, USA - jackerbes at adelphia dot net (also receiving email at jacker at midmaine.com) |
#12
posted to rec.boats.electronics
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Changing VHF antenna location...? line of sight calculator web page
In article ,
Larry wrote: FCC should restrict marinas to antennas 20' off the water running 1/2 watt.....or walkie talkies. Nope, the Marinra Operators just need to be EDUCATED, on how to use the 1 Watt switch on their radios, when talking to a vessel they can see out the window........ Me Educated = 2X4 up the side of the opoeraters head....... |
#13
posted to rec.boats.electronics
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Changing VHF antenna location...? line of sight calculator web page
Me wrote in news:Me-9B7317.11542425052006
@netnews.worldnet.att.net: Nope, the Marinra Operators just need to be EDUCATED, on how to use the 1 Watt switch on their radios, when talking to a vessel they can see out the window........ One watt from a 9db antenna at 70', used to advertise the marina simply by it telling boaters their name, is of no use. Marina operators are teenage kids from the local college working the docks, here. They need WALKIE TALKIES in the 100 milliwatt range, not 1 watt radios with 70' towers and high gain antennas. |
#14
posted to rec.boats.electronics
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Changing VHF antenna location...? line of sight calculator web page
On Thu, 25 May 2006 18:42:09 -0400, Larry wrote:
Marina operators are teenage kids from the local college working the docks, here. They need WALKIE TALKIES in the 100 milliwatt range, And that is exactly what most dockmasters use. The marina office on the other hand, needs increased range to communicate with boats looking for dock space. They need to minimize their time on channel 16 and most do a good job of that in my experience. |
#15
posted to rec.boats.electronics
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Changing VHF antenna location...? line of sight calculator web page
Wayne.B wrote in
: boats looking for dock space Boats looking for dock space need to use the TELEPHONE in their pockets. Channel 16...or 68 or 69 isn't their private sales channel. Their phone numbers are located in the various cruise guides. Talk to them as long as you like. I caught a boat dealer at an in-the-water boatshow on Channel 72 using marine walkies for their business. FCC agreed they didn't need to use marine radio to sell boats, and told them so in the NAL FCC sent them...(c; I wouldn't have called FCC had the ******* not ****ed at me for asking why he wasn't using his cellphones or even Family Radio Service walkies at the show. Talking him off marine radio wasn't possible with such arrogance in the way. FCC seems to have changed his mind. |
#16
posted to rec.boats.electronics
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Changing VHF antenna location...? line of sight calculator webpage
Wayne.B wrote:
And that is exactly what most dockmasters use. The marina office on the other hand, needs increased range to communicate with boats looking for dock space. They need to minimize their time on channel 16 and most do a good job of that in my experience. I've talked to marinas from southern Florida to Down East Maine and can't remember calling a Marina on the calling channel and not being immediately requested to shift to a working channel. That is the way the system is supposed to work and it works well that way. If I know the working channel I eliminate the preliminary call on the calling channel. The biggest problem on VHF marine bands are new boaters who are not familiar with procedure, next are arrogant pricks that can't be bothered to learn how to use it, and a final most irritating factor are the folks that learned procedure by watching Smokey and the Bandit. Jack -- Jack Erbes in Ellsworth, Maine, USA - jackerbes at adelphia dot net (also receiving email at jacker at midmaine.com) |
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