TB 9-6625-2250-24
6.1 dB of measuring receiver indication
(28) TI MKR indication will be within
recorded in (7) above.
(29) Repeat (25) through (28) above for synthesizer/level generator frequency and TI
[CENTER FREQ] 100 kHz and 10 kHz settings.
b. Adjustments. Refer to paragraph 1 a.
18. Residual Responses
a. Performance Check
(1) Connect TI CAL OUTPUT to INPUT 50 .
(2) Press TI keys and enter values using DATA keys as listed in (a) through (j) below:
INSTRUMENT STATE PRESET.
(a)
FREQUENCY then [CENTER FREQ] to 300 MHz.
(b)
SPAN then [SPAN WIDTH] to 10 kHz.
(c)
CONTROL BW then [RES BW] to 300 Hz.
(d)
AMPLITUDE then [REF LVL] to -10 dBm.
(e)
[ATTEN] to 0 dB.
(f)
MARKER PEAK SEARCH.
(g)
AMPLITUDE.
(h)
[MORE].
(i)
[REF LVL CAL].
(j)
(3) Slowly adjust TI knob until MKR amplitude indication is between -9.83
and -10.17 dBm.
(4) Press [STORE REF LVL] key.
and connect a 50
(5) Disconnect TI CAL OUTPUT from INPUT 50
termination
to INPUT 50 .
(6) Press TI keys and enter values using DATA keys as listed in (a) through (i) below:
INSTRUMENT STATE PRESET.
(a)
FREQUENCY then [CENTER FREQ] to 15.2 MHz.
(b)
SPAN then [SPAN WIDTH] to 30 MHz.
(c)
FREQUENCY then [CF STEP] to 28.5 MHz.
(d)
AMPLITUDE then [REF LVL] to -50 dBm.
(e)
[ATTEN] to 0dB.
(f)
CONTROL BW then [RES BW] to 10 kHz.
(g)
CONTROL TRIG then [SINGLE].
(h)
CONTROL DISPLAY then [DISPLAY LINE] to -90 dBm.
(i)
36