TB9-6625-2350-35
(37) Press TI REL pushbutton and ensure TI REL annunciator is displayed.
(38) Change calibrator output to 19 MΩ nominal.
(39) Press TI STO/CLR and RCL buttons as necessary for a TI display equal to
calibrator displayed output value (rounded to TI display resolution).
NOTE
(40) Press TI REL and dB pushbuttons simultaneously and ensure TI STOR
annunciator is displayed.
(41) Set CALIBRATION switch on TI rear panel to DISABLED.
(42) Set calibrator output to minimum and disconnect equipment setup.
a. Performance Check
(1) Connect calibrator OUTPUT HI to TI INPUT HI and calibrator OUTPUT LO
to TI INPUT LO.
(2) Press TI pushbuttons as listed in (a) through (d) below:
(a)
Function to V (in position).
(b)
AC DC to AC (in position).
(c)
Range to AUTO (in position).
(d)
dB (dB annunciator displayed).
(3) Set calibrator for an output of -55 dBm at a frequency of 1 kHz. TI will indicate
within limits specified in first row of table 6.
(4) Repeat technique of (3) above, using calibrator outputs in table 6.
TI will
indicate within limits specified in table 6.
Calibrator output
Test instrument indication limits
dBm
Min
Max
-55
-57
-53
1 kHz
-45
-46
-44
1 kHz
-30
-30.5
-29.5
1 kHz
-5
-5.5
-4.5
1 kHz
5
1 kHz
4.5
5.5
15
1 kHz
14.75
15.25
28
1 kHz
27.75
28.25
b. Adjustments. None
a. Performance Check
(1) Press TI pushbuttons as listed in (a) through (c) below: