TB 9-6625-2333-35
8. Calibrator Output Accuracy
Test
a. Performance Check
NOTE
If necessary, perform measuring receiver and sensor module
(11722A) ZERO and CALIBRATE.
(1) Connect measuring receiver sensor module input to TI CAL OUTPUT.
(2) Setup measuring receiver to measure power in dBm at 300 MHz. Measuring
receiver will indicate between -9.7 and -10.3 dBm.
9. Displayed Average Noise Level Test
a. Performance Check
(1) Connect TI CAL OUTPUT to INPUT 50 Ω.
(2) Press TI keys and enter values using the DATA keys as listed in (a) through
(k) below:
(a)
INSTRUMENT STATE PRESET.
(b)
(c)
SPAN then [SPAN] to 100 Hz.
(d)
AMPLITUDE then [REF LVL] to -10 dBm.
(e)
[ATTEN] to 0 dB.
(f)
[MORE 1 OF 3] then [COUPLING AC DC] to select DC.
(g)
CONTROL BW then [RES BW] to 1 Hz.
(h)
[VIDEO BW] to 1 Hz.
(i)
MARKER PEAK SEARCH.
(j)
INSTRUMENT STATE CAL.
(k)
[REF LVL ADJ].
(3) Slowly adjust TI knob until MKR indication is between -9.83 and -10.17 dBm.
Press [STORE REF LVL] key.
(4) Disconnect CAL OUTPUT from INPUT 50 Ω and connect a 50 Ω termination to
INPUT 50 Ω.
(5) Press TI keys and enter values using DATA keys as listed in (a) through
(e) below:
(a) AMPLITUDE then [REF LVL] to -50 dBm.
(b) SPAN then [SPAN] to 375 Hz.