Bird Technologies 21-87A-11-xx-T Series-Manual - Manual (Page 6)

Table of Contents Manual 7-9100-5 10/17/11
Figures and Tables
Figure 1: Interconnect diagram of typical system ................................................ 1
Figure 2: Typical transmitter noise suppression ................................................... 3
Figure 3: Front view of 21 channel multicoupler ................................................... 5
Figure 4: Mounting rack detail .............................................................................. 6
Figure 5: Typical combiner installation ................................................................. 7
Figure 6: Measuring T-Pass channel performance .............................................. 8
Figure 7: T-Pass cavity fine tuning ..................................................................... 11
Figure 8: T-Pass cavity tuning controls .............................................................. 12
Figure 9: Coarse tuning a T-Pass cavity ............................................................ 13
Figure 10: Expansion channel installation .......................................................... 15
Figure 11: Top view of T-Pass cavity ................................................................. 16
Figure 12: Setting loop adjustment reference..................................................... 17
Figure 13: Setting T-Pass loop using step attenuators....................................... 18
Figure 14: Setting BandPass loop using step attenuators.................................. 19
Figure 15: Setting T-Pass loop insertion loss ..................................................... 21
Figure 16: Setting Bandpass loop insertion loss ................................................ 22
Table 1: Specifications .......................................................................................... 2
Table 2: Typical T-Pass channel insertion loss..................................................... 3
Table 3: Test data sheet ..................................................................................... 10
Table 4: Cavity insertion loss reference loop settings......................................... 16
APPENDIX A
800 MHz Isolators (Compact Style)
General Description .......................................................................................... 24
Installation.......................................................................................................... 25
Verifying Isolator Functionality ........................................................................ 25
Recommended Test Equipment ...................................................................... 25
Measuring Reverse Isolation (S12) ................................................................... 25
Measuring Insertion Loss (S21)......................................................................... 25
Figure A1: Verifying Reverse Isolation ............................................................... 26
Figure A2: Verifying Insertion Loss .................................................................... 26
Figure A3: Typical Reverse Isolation Waveform ................................................ 27
Figure A4: Typical Insertion Loss Waveform...................................................... 27
Table 1: Specifications ........................................................................................ 24