The device you want is a receiver multicoupler. Plus appropriate filtering ahead of it.
Matthew Kaufman wd5etd wrote: > Sorry for the dumb question but, I have a group trying to add a link at one > site for 5 repeaters. They are not trunked. What is the cheapest way for > them to share 1 antenna? They have a very good DB antenna but, I did not > think it necessary for them to buy 5! > > They are out in the country quite a ways. So, there is not much else to > interfere. > > I know a combiner is probably the usual way but, I thought there might be a > cheaper way since it is only for receive. > > They do not have a tower for the receive antenna but, they do have a > multi-story building. So, feed line expense is not a concern if they use > multiple antennas. > > Thanks > > Rick >