Tait T850 II Series, Service Manual

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M850-00
T858/859 Initial Adjustment D3.1
Copyright TEL 31/09/98
3 T858/859 Initial Adjustment
Caution:
This equipment contains CMOS devices which are susceptible to dam-
age from static charges. Refer to Section 1.2 in Part A for more infor-
mation on anti-static procedures when handling these devices.
The following section describes the full adjustment procedure to be carried out before
operating the T858/859.
Refer to Section 5 where the parts lists, grid reference index and diagrams will provide
detailed information on identifying and locating components. Refer also to Figure 3.3
and Figure 3.4 which show the location of the main adjustment controls.
The following topics are covered in this section.
Section Title Page
3.1 Test Equipment Required 3.3
3.2 Preliminary Checks 3.3
3.3
3.3.1
3.3.2
3.3.3
RF Alignment
Standard Tuning Procedure
Tuning Control Settings
Tuning For Best Efficiency
3.4
3.4
3.5
3.5
3.4 Setting The Output Power 3.6
3.5 T858 High Temperature Shutdown Power Level 3.7
3.6 T859 High Temperature Shutdown Power Level 3.7
3.7 Remote Forward Power Meter Calibration 3.8
3.8 Remote Reverse Power Meter Calibration 3.8
3.9
3.9.1
3.9.2
Setting Alarm Levels
Forward Power
Reverse Power
3.8
3.8
3.8
Figure Title Page
3.1
3.2
3.3
3.4
T858/859 Test Equipment Set-up
T858/859 Tuning Control Settings
T858 Main Adjustment Controls
T859 Main Adjustment Controls
3.3
3.5
3.11
3.13