One of our repeaters is at a water tank. Our antenna is mounted at the top, but on the tank's northern side. There's an opportunity to mount another antenna at the oppostite side of the 50' wide tank (same height). I was wondering if we might improve omni coverage by having radiators operating from both sides.
--- In [email protected], "Milt" <[EMAIL PROTECTED]> wrote: > > Tony, > > Not sure where you are going with this. I have seen and heard of antenna > systems that used power dividers to connect two antennas to a single point > with equal or unequal power division. Usually used in buildings where the > RF resource is on the top of the building and coverage is needed in > basements and sub-basements. Often one of the legs is radiating coax > terminated in a unity gain antenna. This could be connected to a duplexer > output. This has been done for quite a while and I'm sure that there are > many on the list who have dealt with similar systems. > > Voting systems on the other hand are systems where multiple receivers are > connected to a voting selector which determines which of the multiple > receivers has the best signal to noise ratio and selects that receiver. The > output of the selector then connects to whatever the user wishes. Examples > could be many receivers connected to a console with a single or multiple > location talk back transmitter(s) under the control of a dispatcher on a > simplex frequency; or feeding the output and corresponding COR to a > transmitter on a second frequency in a repeater configuration. Again this > has been done for many years. > > For more information check out some of the standard texts that are oriented > to land mobile radio. > > Milt > N3LTQ > > > ----- Original Message ----- > From: "Tony L." <[EMAIL PROTECTED]> > To: <[email protected]> > Sent: Thursday, March 01, 2007 8:56 PM > Subject: [Repeater-Builder] Diversity Antenna System ? > > > > Has anyone ever experimented with a diversity antenna configuration on > > a repeater? That is, using 2 antennas, mounted at different > > building/tower locations, but connected to a single duplexer? > > > > I suppose a controller/router/voter of some sort would be necessary to > > insure that the antenna receiving the strongest signal would also be > > chosen for tx purposes? > > > > Thoughts? > > > > > > > > > > > > > > Yahoo! Groups Links > > > > > > >
