TB 9-6625-2250-35
NOTE
If displayed trace is not approximately 3 divisions below the
reference level, press [CONT] key and then FREQUENCY
key. Adjust displayed trace approximately 3 divisions below
reference level with TI knob.
(10) Press CONTROL TRIG key then [SINGLE] key.
(11) Press MARKER ON key and adjust TI knob to position marker on horizontal
division with greatest amplitude deviation.
(12) Press [MARKER DELTA] key and adjust TI knob to position marker at lowest
amplitude in the same horizontal division. Record absolute value of ∆ MKR amplitude
indication.
(13) Multiply value recorded in (6) above by value recorded in (12) above. Result will
be less than 100 Hz.
b. Adjustments. No adjustments can be made.
14. Noise Sidebands
a. Performance Check
(1) Connect TI CAL OUTPUT to INPUT 50Ω.
(2) Press TI keys and enter values using DATA keys as listed in (a) through (w)
below:
(a)
INSTRUMENT STATE PRESET.
(b)
FREQUENCY then [CENTER FREQ] to 300 MHz.
(c)
SPAN then [SPAN WIDTH] to 1 MHz.
(d)
AMPLITUDE then [REF LVL] to -10 dBm.
(e)
[ATTEN] to 0 dB.
(f)
MARKER PEAK SEARCH.
(g)
[SIG TRK ON].
(h)
SPAN then [SPAN WIDTH] 10 kHz and wait for completion of at least two
sweeps.
(i)
MARKER ON.
(j)
[SIG TRK OFF].
(k)
CONTROL BW then [RES BW] to 300 Hz.
(l)
SPAN then [ZERO SPAN].
(m)
CONTROL BW then [VIDEO BW] to 1 Hz.
