TB 9-6625-160-24
dBm = - .
CALIBRATOR. Example: Equivalent Output .
dBm -
.
(c) Subtract 40 dBm from Equivalent Output and enter new output value into
CAUTION
Ensure the dBm value entered into CALIBRATOR is a
negative () number.
(d) Divide reading on TI right display by 0.300 mV and multiply by 100.
current right display reading
x
= Limits
Calculated (actual) measurement should be within limits specified in table 4 below.
.
mV
(11) Repeat technique of (10) above for remaining parameters and limits listed in
table 4 below.
Table 4. Low Level AC Level Accuracy.
Calibrator
Limits of Corrected reading (%)
TI right display
Applied
Minimum
Actual
Maximum
20 Hz
96
104
1 kHz
96
104
20 kHz
96
104
50 kHz
96
104
100 kHz
96
104
(12) Set CALIBRATOR OPR/STBY switch to STBY and disconnect from TI.
(13) Press TI numeric keys 1.9 and then press SPCL key to set input range.
(14) Connect TI OUTPUT HIGH connector to INPUT HIGH connector.
(15) Set TI SOURCE AMPTD to 6 V.
(16) Set TI RATIO key to on (Led on).
(17) Insert a 600Ω feedthrough termination in line between TI OUTPUT HIGH
connector and INPUT HIGH connector.
%
CF =
(18) Calculate and record Calibration Factor using following formula.
.
TI right display reading
(19) Set TI RATIO to off (Led off).
(20) Set TI numeric keys for first special function in table 5 below and then press
SPCL key.
(21) Set TI SOURCE amplitude and frequency as indicated in table 5 below. For
each setting, note TI right display and calculate the following. Result should be within
TI right display
%
corresponding limits specified in table 5 below.
Ratio reading table or above
(22) Repeat technique of (20) and (21) above for remaining parameters and limits
listed in table 5 below.
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