TB 9-4931-533-40
Figure 1. Attenuation accuracy (30 MHz) - equipment setup.
(5) Set precision IF attenuator to 20.00 dB and adjust signal generator No. 1 for a
power level of -20 dBm or less as indicated on power meter. Do not readjust power level for
remainder of this test.
(6) Connect equipment as shown in figure 1, connection B.
(7) Press TI MEASUREMENT ON and REF pushbuttons to establish, a TI reference.
(8) Adjust precision IF attenuator from 20 to 30 dB. Press TI MEASUREMENT
ON pushbutton. TI display will indicate 0.02 dB/10dB of test report values for precision if
attenuator. Press MEASUREMENT STOP pushbutton.
(9) Repeat (8) above in 10 dB increments to 100 dB. TI display will indicate within
the tolerances specified in (8) above.
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