Bird Technologies 73-67-25 Series User Manual
Page 5
Table of Contents Manual 7-9120-5 07/26/10
Table of Contents
General Description ........................................................................................... 1
Unpacking ............................................................................................................ 4
Installation Overview........................................................................................... 5
RF Cables and Connectors ................................................................................. 5
Intermodulation Considerations ........................................................................... 5
General Installation Procedure ............................................................................ 6
Transmitter Combiner Checkout........................................................................ 7
Required Equipment ............................................................................................ 7
Procedure .......................................................................................................... 7
Measurement Accuracy..................................................................................... 7
General Tuning Information ............................................................................... 7
Tuning Specifics .................................................................................................. 8
Fine Cavity Tuning............................................................................................. 8
Procedure ........................................................................................................ 8
Cavity Tuning Tip............................................................................................. 9
Coarse Cavity Tuning ........................................................................................ 9
Procedure ...................................................................................................... 10
Retuning System to all new Frequencies .......................................................... 10
Combiner Expansion ......................................................................................... 11
Typical Expansion Channel Installation ............................................................. 11
Peg Rack Procedure (6.625” and 10” Cavities) ............................................... 11
Relay Rack Procedure (10” Cavities) .............................................................. 12
Relay Rack Procedure (6.625” Cavities) ......................................................... 13
Setting Cavity Insertion Loss ............................................................................. 14
Cavity Loss Setting Procedure 1 ....................................................................... 15
Required Test Equipment ................................................................................ 15
Procedure for T-Pass Loop ............................................................................. 16
Procedure for BandPass Loop ........................................................................ 17
Cavity Loss Setting Procedure 2 ....................................................................... 18
Required Test Equipment ................................................................................ 18
Procedure for T-Pass Loop ............................................................................. 18
Procedure for BandPass Loop ........................................................................ 20
Maintenance ....................................................................................................... 21
Isolators.............................................................................................................. 21