TB 9-6625-2021-24
15. Equipment Setup
WARNING
HIGH VOLTAGE is used or exposed during the performance of
this calibration.
DEATH ON CONTACT may result if
personnel fail to observe safety precautions.
REDUCE
OUTPUT(S) to minimum after each step within the
performance check where applicable.
a. Remove protective cover from TI only for access to adjustments or test points.
b. Assure that LINE VOLTAGE SELECTOR switch (rear panel) is set for 115 V ac
and verify that correct fuse (as labeled on rear panel) is installed.
c. Connect TI to autotransformer and connect autotransformer to a 115 V ac source
and adjust for 115 V ac output.
d. Connect 50
feedthrough termination supplied with TI to FREQ STD OUT on rear
of TI.
NOTE
When FREQ STD OUT on rear of TI is not being used, the
connector must be terminated with 50
feedthrough
termination supplied with TI.
e. Position controls as listed in (1) through (6) below.
(1) INT/EXT switch (rear panel) to INT.
(2) CW/FM switch (rear panel) to CW (model 5342A only).
(3) ACQ TIME/FAST, MED, SLOW switch (rear panel) to MED (model 5343A only).
(4) SAMPLE RATE control fully ccw.
(5) Frequency range switch 10 Hz - 500 MHz/500 MHz - 18 GHz (10 Hz - 500
MHz/500 MHz - 26.5 GHz for model 5343A) to 10 Hz - 500 MHz.
(6) 50 - 1 M switch to 50 .
f. Set STBY/LINE/ON switch to ON and allow TI at least 24 hours for warm-up and
stabilization.
16. Time Base Stability (Option 001, H14, H16, Time Base 10544A and Model
5343A)
a. Performance Check
(1) Connect time/frequency workstation 10 MHz output to frequency counter
10 MHz reference input connector and set frequency counter external reference on.
(2) Connect TI 10 MHz Ref output to frequency counter Channel A input.
(3) Adjust frequency counter for a stable indication. Frequency counter should
indicate between 9.999998499 and 10.00000151 MHz (for TI with one year interval).
