NO. You will create more problems. 73 Gary K4FMX
> -----Original Message----- > From: [email protected] [mailto:Repeater- > [EMAIL PROTECTED] On Behalf Of Tony L. > Sent: Friday, March 02, 2007 11:11 AM > To: [email protected] > Subject: [Repeater-Builder] Re: Diversity Antenna System ? > > 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 > > > > > > > > > > > > > > > > > > > Yahoo! Groups Links > > >
