TB 9-6625-1932-35
(10) To determine TI CAL FACTOR (Kb): Divide power calculated in (9) above into
power recorded for TI in (8) above. Difference in computed Kb factor value and Kb value
marked on TI will not exceed tolerance listed in appendix A.
NOTE
Perform b below for Hewlett-Packard, Models 478A and 8478B
that fail (10) above.
(11)
Repeat technique of (1) through (10) above for remaining standard thermistor
mounts cardinal test point frequencies determined in 7c above.
NOTE
Perform steps listed below for all TIs which marginally pass (1)
through (11) above.
Perform (12) through (25) for coaxial TIs with frequency range
between 10 MHz and 18 GHz.
Perform (26) through (35) below for waveguide TIs with
frequency range up to 18 GHz
Perform (36) through (46) below for waveguide TIs with
frequency range between 18 and 26.5 GHz.
Perform (47) through (58) below for waveguide TIs with
frequency range between 26.5 and 40 GHz.
cardinal test point frequency determined in 7c above.
(14) Adjust programmable sweep generator LEVEL output controls to +3 dBm.
(15) Allow equipment to warm up for 1 hour before proceeding to (16) below.
NOTE
Do not perform (15) above when repeating procedure for
remaining cardinal test point frequencies.
(16) Establish a 0.00 dB reference on receiver system at cardinal test point
frequency.
NOTE
Ensure receiver system is in measurement mode.
8