TB 9-6625-2185-24
(7) Connect equipment as shown in figure 6, CONNECTION B. If display does not
indicate within 3 percent of power calculated in (5) above, perform b below.
(8) Repeat technique of (3) through (7) above for frequencies and tolerances listed
in table 10.
Table 10. Frequency Response
Frequency
Tolerance
(GHz)
(%)
2
4.7
9
5.7
18
7.7
(9) Disconnect equipment and connect TI sensor to 50 : output of synthesizer/level
generator.
(10) Press 0, CAL FAC GHz, 0, and CAL FAC dB pushbuttons.
of 10 MHz. Display will indicate between 0.97 and 1.03 mW.
(12) Repeat (11) above for frequencies of 1 MHz and 100 kHz.
b. Adjustments
(1) Connect equipment as shown in figure 6, CONNECTION A.
(2) Adjust synthesized signal generator for a 1 GHz, 1 mW output; calculate using
precision power measurement technique described in paragraph 8a(7) through (12) above.
(3) Connect equipment as shown in figure 6, CONNECTION B.
(4) Press MODE, dB, 0, CAL FAC GHz, 0, CAL FAC dB pushbuttons.
(5) Record difference in TI display and 00.00 dBm actual.
Example: DISPLAY = -00.60 dB
00.00 - (-00.60) = 0.60 at 5 GHz
DISPLAY = 00.75
00.00 - (-00.75) = 0.75 at 6 GHz
(6) Repeat technique of (1) through (5) for frequencies of 1 through 18 GHz at 1
GHz intervals and record results calculated in (5) above as calibration factors at test
frequency on power sensor label.
(7) Set control board bit switch to CALIBRATE MODE 1 (DC CAL) (fig. 3).
(8) Press pushbuttons as listed in (a) through (c) below:
(a) 1, SELECT SENS.
(b) Last four digits of serial number of sensor.
(c) dB LIMITS HI, 1000, CAL FAC dB, 2, CAL FAC GHz.
(9) Set control board bit switch to CALIBRATE MODE 2 (AC CAL) (fig. 3).
(10) Press pushbuttons as listed in table 11, from left to right.
21
