TB 9-6625-152-24
Table 4. Output Level Continued.
Test instrument
Measuring receiver
Output
Indication limits
Frequency (MHz)
Level (dBm)
Min
Max
500
-110
-112
-108
500
-120
-122
-118
500
-125
-127
-123
1000
-21
-23
-19
1000
-25
-27
-23
1000
-30
-32
-28
1000
-40
-42
-38
1000
-50
-52
-48
1000
-60
-62
-58
1000
-70
-72
-68
1000
-80
-82
-78
1000
-90
-92
-88
1000
-100
-102
-98
1000
-110
-112
-108
1000
-120
-122
-118
1000
-125
-127
-123
(5) Set TI output to minimum and disconnect equipment setup.
b. Adjustments
(1) Press TI HELP SETUP, [Setup], [Calibrate] keys.
NOTE
If the message Locked appears adjacent to the [Calibrate]
key, it must be unlocked before access can be obtained. Press
[Calibrate]. The message ENTRY CODE will appear. Key in
the digits 2, 9, 4, 5, then press the [dBm/ENTER] key. If the
procedure has been carried out correctly the Locked message
will be removed and the [Calibrate] key will now be active.
Press [Calibrate].
(2) Press TI [Output level], [BNC output], [Reset Cal] keys.
(3) Connect measuring receiver to TI BNC output connector and configure
measuring receiver for power measurement.
(4) Use TI [ ], [ ] keys to select each frequency in turn while monitoring measuring
receiver power indications.
NOTE
If adjustment for R61 (fig. 11) in (5) below is required,
adjustments in paragraphs 13 and 23 must also be performed.
(5) Select frequency with lowest power output.
If displayed power is not
+6 dBm 0.1 dbm, adjust R61 (fig. 6) for such.
(6) Press TI [HELP SETUP], [Calibrate], [OUTPUT AMP] keys.
(7) Use TI [ ], [ ] keys to highlight 0 dBr calibration point.
10
