Boatist
Rear Admiral
- Joined
- Apr 22, 2002
- Messages
- 4,552
Re: Antenna Hidden
Knightgang
This will be my last post here so you can have the last word.
My whole point of the my first post is the antenna should be mounted properly so it ready to be used in an emergency.
The average boat of his type with a 6 db 8 foot antenna has a range of 5 miles PLUS the range of the other station.
Boat to Boat for small boats the average range is about 10 miles.
You did not agree the other station made any difference.
Boat to a Coast Guard Station with antenna mounted on top of mountains 3000 feet high can be 80 miles or more.
I not sure how you define range. To me it is the range to the horzion.
If that is not range and you are talking about range above the horzion then the range is infinite as the signal go on forever it just gets weaker. It can reach sattelites and planets. Example Voyager Space craft was line of site frequency and was less power than a marine radio and was in contact until it passed pluto the last planet in our system
Larger ocean vessals have antenna mounted higher so have more range but boat to boat it is not hundreds of miles across open ocean on a VHF Marine radio. To land stations with antenna mounted very high up on mountains and multiple antenna location linked together longer ranges can be acheived.
A boat with an antenna top at 30 feet above the water range is about 7.8 miles plus the range of the other station.
A boat with an antenna top at 60 feet above the water the range is about 11 miles plus the range of the other station.
For boats to talk to other boats hundreds of miles acrossed open ocean they have to be useing a lower frequency that is not line of site or have to be useing Sattelites or some type of repeater system. They are not using a VHF marine radio.
Have a nice day.
Knightgang
This will be my last post here so you can have the last word.
My whole point of the my first post is the antenna should be mounted properly so it ready to be used in an emergency.
The average boat of his type with a 6 db 8 foot antenna has a range of 5 miles PLUS the range of the other station.
Boat to Boat for small boats the average range is about 10 miles.
You did not agree the other station made any difference.
Boat to a Coast Guard Station with antenna mounted on top of mountains 3000 feet high can be 80 miles or more.
I not sure how you define range. To me it is the range to the horzion.
If that is not range and you are talking about range above the horzion then the range is infinite as the signal go on forever it just gets weaker. It can reach sattelites and planets. Example Voyager Space craft was line of site frequency and was less power than a marine radio and was in contact until it passed pluto the last planet in our system
Larger ocean vessals have antenna mounted higher so have more range but boat to boat it is not hundreds of miles across open ocean on a VHF Marine radio. To land stations with antenna mounted very high up on mountains and multiple antenna location linked together longer ranges can be acheived.
A boat with an antenna top at 30 feet above the water range is about 7.8 miles plus the range of the other station.
A boat with an antenna top at 60 feet above the water the range is about 11 miles plus the range of the other station.
For boats to talk to other boats hundreds of miles acrossed open ocean they have to be useing a lower frequency that is not line of site or have to be useing Sattelites or some type of repeater system. They are not using a VHF marine radio.
Have a nice day.
