I'd try one between the RX port of the duplexer and receiver and see what happens.  The addition of a preamp depends as much on site conditions as the equipment you use.  If necessary, you could easily add a Band Pass cavity between the RX port of the duplexer and the input of the preamp.

[EMAIL PROTECTED] wrote:
Interested in the idea of placing a preamp on the Rx side to increase HT coverage.  I've read in an article they should not be used with Notch-Reject Duplexers though...we have one.  Thoughts were to place it in the line between the duplexer and Rx radio on a duplexed, single antenna repeater setup.  Any successes or failures with using a preamp w/ this type of duplexer?








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