TB 9-6625-2339-24
(m)
FREQUENCY, [Signal Track] (Off).
(n)
Sweep, [Sweep Time], 5, [s] (Man).
(o)
Single. Wait for the completion of sweep.
(p)
Peak Search (or Search).
(q)
Marker, [Delta].
(r)
[More], [Function], [Marker Noise (or Noise)].
(s)
Det/Demod, [Detector], [Sample].
(t)
Amplitude, [Ref Level], 1, 0, [dBm].
(u)
FREQUENCY, [CF Step], 1, 0, [kHz].
[Center Freq], .
(v)
(w)
SPAN, [Zero Span].
(x)
Single.
(5) Wait for completion of sweep. TI Mkr1 Noise indication will be within limit
specified in first row of table 9.
(6) Press TI keys as listed in (a) and (b) below:
(a) FREQUENCY, , .
(b) Single.
(7) Wait for completion of sweep. TI Mkr1 Noise indication will be within limit
specified in second row of table 9.
(8) Press TI FREQUENCY, keys.
(9) Repeat steps (4) (u) through (x) and (5) through (8) above for remaining center
frequency step sizes listed in table 9. TI Mkr1 Noise indications will be within limits
specified in table 9.
Table 9. Noise Sidebands
Mkr1 Noise
Center frequency
step size
indication limit
≤90 dB/Hz1, 2
10 kHz
≤90 dB/Hz1, 2
10 kHz
≤98 dB/Hz3
10 kHz
≤98 dB/Hz3
10 kHz
≤104 dB/Hz1
20 kHz
≤104 dB/Hz1
20 kHz
≤100 dB/Hz2, 3
20 kHz
≤100 dB/Hz2, 3
20 kHz
≤110 dB/Hz1
30 kHz
≤110 dB/Hz1
30 kHz
≤106 dB/Hz2, 3
30 kHz
≤106 dB/Hz2, 3
30 kHz
≤118 dB/Hz
100 kHz
≤118 dB/Hz
100 kHz
Model E4407B, E4407B-E57, E4407B-H57 S/N ≥MY4510, SG4510, US4510.
1
All models S/N <MY4510, SG4510, US4510.
2
3Models AN/USM-677, E4407B-H76, E4407B1D51DR S/N ≥MY4510, SG4510, US4510.
(10) Set all outputs to minimum.
b. Adjustments. None.
Change 1