Dimiters, Sounds like Wayne has done this before.
As to using VHF for bridge to ship probably because this is where the standard marine band is in the USA. Sounds as if UHF is best inside ship. This problem does remind me of a project from about 30 years back where in a sports stadium having HT comm down into the complex did not work. The solution was passive repeaters where two antennas, one on top and another down deep in the structure worked well. The near antenna picked up the siganl and it was taken to the other. Sure alot of loss, but much better than HT to HT. In some cases simply well shielded & isolated low power amps were used between the antennas for one way paging repeaters. Since the two antennas could hear one another there was not an interference problem. 73, ron, n9ee/r --- In [email protected], "Wayne Cornick" <[EMAIL PROTECTED]> wrote: > Another problem is whenever the water tight doors are closed you end up with > no communication outside that compartment. > On board a River Casino we used a low power repeater and set up multiple > antennas on tap points throughout the below water level compartments. > Communications are possible anywhere aboard the vessel doors open or > closed.....UHF is a must! > > Wayne > > Hussien, as usual what appears to be a simple question can lead to a > very complicated answer. Usually VHF is used on the Bridge to talk > to other ships or the shore, and UHF is used by the deck crew for > intra ship communications. If you give me more specifics I can be > more detailed. > > Relief Radio Officer MV President Grant > Gregory Gordon AC6VJ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
