User's Manual

Table of Contents Manual 7-9408-1.2 07/25/05
61-38-05 UserMan page 6 of 38
Maintenance and Repair ................................................................................... 26
Recommended Replacement Parts ................................................................. 26
Conversion Chart .............................................................................................. 26
Figures and Tables
Figure 1:
Front view of typical 61-38-05 system ................................................... 2
Figure 2:
Bottom view of the cabinet enclosure.................................................... 3
Figure 3:
Top view of the cabinet enclosure......................................................... 4
Figure 4:
Measuring antenna isolation ................................................................. 5
Figure 5:
Measuring input signal levels ................................................................ 7
Figure 6:
Observing RF power output .................................................................. 8
Figure 7:
1 stg/3 stg amplifier assembly 3-11423................................................. 9
Figure 8:
OLC assembly 3-6280......................................................................... 12
Figure 9:
Measuring signal booster gain ............................................................ 14
Figure 10:
Surveying performance ..................................................................... 15
Figure 11:
Preselector tuning ............................................................................. 16
Figure 12:
Observing preselector return loss .....................................................17
Figure 13:
Bandpass filter tuning........................................................................ 18
Figure 14:
The pseudo-bandpass filter ...............................................................18
Figure 15:
Tuning for maximum return loss........................................................19
Figure 16:
Tuning for maximun attenuation........................................................ 20
Figure 17:
The notch filter................................................................................... 20
Figure 18:
Tuning for maximum return loss........................................................21
Figure 19:
Tuning for maximum attenuation....................................................... 22
Figure 20:
Mechanical layout of single section amplifier .................................... 23
Figure 21:
Measuring amplifer gain .................................................................... 24
Figure 22:
Meqsuring input return loss ............................................................... 24
Figure 23
: Measuring output return loss .............................................................25
Figure 24:
Measuring reverse isolation .............................................................. 25
Specifications
.................................................................................................... 33
Power Conversion Chart
................................................................................... 35
Notes
................................................................................................................... 38