Dave (Norstar Telecom) and I are trying to get coverage in a rebar reinforced concrete building with two DMC base station antennas.

We are planning to add a repeater, but have a question about the "external antenna."

The "external antenna" attaches to a repeater antenna.

Does the "external attachment" pull in a weak signal to allow a repeater to distribute a good signal within a remote structure, OR

Does it send out a strong "external" signal for use by handsets in an outdoor environment a long distance away?

Help understanding the techniques to get a strong signal outdoors will help us alot!!

Thanks.

Bill