Originally Posted by jared
I was wondering why i dont see people mount their VHF antennas on the shroud spreader? It seems like a nice safe place from lightning
and protected from jib
torment. I would run insulated support(s) to keep the whip from banging into the mast
or shroud. What am I missing??
Also, when i bought my boat it had big powerline style insulators on the backstay. Did they use the backstay as an antenna
? Is it suitable for VHF???
The masthead is the tallest point, and has the least interfering metal stuff. It really is the best place for the VHF antenna. I have my AIS
antenna on the upper spreader, and while it works well, there is probably some interaction with the mast and shrouds. If for some reason you can't put the VHF antenna on the masthead, the spreader is probably your best alternative.
In the event of a lightning strike, I doubt that the spreader location would give much protection.
The large insulators on the backstay are so it can be used for a SSB
antenna (3-30 MHz). This would not be appropriate for a VHF antenna.