TB 9-6625-2351-35
15. Frequency Span Accuracy
a. Performance Check
(1) Connect TI 10 MHz REF IN/OUT to signal generator 10 MHz REF IN.
(2) Connect signal generator RF Output to TI INPUT 50 Ω.
(3) Press TI keys as listed in (a) through (d) below:
(a)
INSTRUMENT STATE PRESET.
(b)
INSTRUMENT STATE RECALL.
(c)
[MORE].
(d)
[FACTORY PRSEL PK].
(4) Press TI FREQUENCY key then [CENTER FREQ] to 1.5 GHz.
(5) Press TI SPAN key then [SPAN WIDTH] to 10 kHz.
(7) Press TI keys as listed in (a) through (e) below:
(a)
MARKER OFF.
(b)
CONTROL TRIG.
(c)
[SINGLE] wait for completion of sweep.
(d)
MARKER PEAK SEARCH.
(e)
[MARKER DELTA].
(9) Press TI keys as listed in (a) through (c) below:
(a) CONTROL TRIG.
(b) [SINGLE] wait for completion of sweep.
(c) MARKER PEAK SEARCH.
(10) TI ∆ MKR indication will be between 7.6 and 8.4 kHz.
(11) Repeat technique of (5) through (9) above for TI SPAN [SPAN WIDTH] and
limits specified in table 13.
Test instrument
Signal generator
Test instrument
FREQUENCY
SPAN
Frequency
Frequency
∆ MKR
[CENTER FREQ] [SPAN WIDTH]
(GHz)
(GHz)
indications
settings
settings
settings in (6)
settings in (8)
above
above
Min
Max
1.5
20
kHz
1.499992
1.500008
15.2 kHz
16.8 kHz
1.5
50
kHz
1.49998
1.50002
38.0 kHz
42.0 kHz
1.5
100
kHz
1.49996
1.50004
76.0 kHz
84.0 kHz
1.5
101
kHz
1.49996
1.50004
76.0 kHz
84.0 kHz