TB 9-6625-2250-35
MARKER MKR→ then [MARKER→ REF LVL].
(n)
(o)
CONTROL TRIG.
(p)
[SINGLE].
(q)
[SINGLE] wait for completion of sweep.
(r)
MARKER ON.
(s)
[MARKER DELTA].
(t)
FREQUENCY then [CF STEP] to 9 kHz.
(u)
[CENTER FREQ].
STEP ⇑.
(v)
(w)
CONTROL TRIG.
NOTE
Using the CAL OUTPUT signal as the source, the checks must
pass with at least a 6 dB margin (added in (3) and (5) below) for
results to be valid. This is due to the phase-coherency of the
(3) Press TI [SINGLE] key and wait for completion of sweep. TI ∆ MKR amplitude
indication will be less than -76 dBc.
(4) Press TI keys as listed in (a) through (d) below:
(a)
FREQUENCY.
STEP ⇓.
(b)
STEP ⇓.
(c)
(d)
CONTROL TRIG.
(5) Press TI [SINGLE] key and wait for completion of sweep. TI ∆ MKR amplitude
indication will be less than -76 dBc.
b. Adjustments. No adjustments can be made.
15. Frequency Readout and Frequency Count Marker 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 50Ω.
