Anritsu 681XXC User Manual
SINGLE-SIDEBAND PHASE NOISE (dBc/Hz)
POWER LINE and FAN ROTATION SPURIOUS EMISSIONS (dBc)
RESIDUAL FM (CW and Step Sweep modes, 50 Hz - 15 kHz BW)
RESIDUAL FM (Analog Sweep and Unlocked FM modes, 50 Hz - 15 kHz BW)
AM Noise Floor: Typically <–145 dBm/Hz at 0 dBm output and offsets >5 MHz from carrier.
681XXC OM
B-3
PERFORMANCE
SPECIFICATIONS
SPECIFICATIONS
Frequency Range
Residual FM (Hz RMS)
10 MHz to
£
8.4 GHz
<120
>8.4 GHz to
£
20 GHz
<220
>20 GHz to
£
40 GHz
<440
>40 GHz to
£
65 GHz
<880
Frequency Range
Unlocked Narrow FM Mode
(kHz RMS)
Unlocked Wide FM Mode
(kHz RMS)
10 MHz to
£
20 GHz
<5
<25
>20 GHz to
£
40 GHz
<10
<50
>40 GHz to
£
65 GHz
<20
<100
Frequency Range
Offset From Carrier
100 Hz
1 kHz
10 kHz
100 kHz
0.1 Hz to <10 MHz
(w/Option 22)
–90
–120
–130
–130
³
10 MHz to
£
2.0 GHz
–77
–88
–86
–100
>2.0 GHz to
£
6.0 GHz
–78
–88
–86
–102
>6.0 GHz to
£
10.0 GHz
–73
–86
–83
–102
>10.0 GHz to
£
20.0 GHz
–66
–78
–78
–100
>20.0 GHz to
£
40.0 GHz
–60
–75
–72
–94
>40.0 GHz to
£
65.0 GHz
–54
–69
–64
–88
Frequency Range
Offset From Carrier
<300 Hz
300Hz to 1 kHz
>1 kHz
10 MHz to
£
8.4 GHz
<–50
<–60
<–60
>8.4 GHz to
£
20 GHz
<–46
<–56
<–60
>20 GHz to
£
40 GHz
<–40
<–50
<–54
>40 GHz to
£
65 GHz
<–34
<–44
<–48