TB 9-6625-2250-35
Figure 4. IF
gain uncertainty -
equipment setup.
(2) Press synthesizer/level generator keys to values listed in (a) through (c) below:
(b) AMPLITUDE to +10 dBm.
(c) AMPTD INCR to 10 dB.
(3) Press TI keys and enter values using DATA keys as listed in (a) through (g)
below:
(a)
INSTRUMENT STATE PRESET.
(b)
[REALIGN LO & IF] wait for ADJUST STATUS messages to disappear.
(c)
(d)
SPAN then [ZERO SPAN].
(e)
AMPLITUDE then [LOG dB/DIV] to 1 dB.
(f)
CONTROL BW then [RES BW] to 10 kHz.
(g)
[VIDEO BW] to 1 Hz.
(4) Set attenuator No. 1 to 0 dB.
(5) Press TI MARKER ON key.
NOTE
Attenuator (fixed) listed in table 2 may be substituted in
equipment setup as necessary to obtain TI reference level in
(6), (16) and (26) below.
(6) Adjust attenuator No. 1 to position signal peak 2 to 3 dB (2 to 3 divisions) below
TI reference level.
(7) Press TI keys as listed in (a) through (e) below:
(a)
CONTROL TRIG.
(b)
[SINGLE].
(c)
[SINGLE]
MARKER ON.
(d)
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