POWER LINE and FAN ROTATION SPURIOUS
EMISSIONS (dBc)
RESIDUAL FM
(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.
RF OUTPUT
Power level specifications apply at 25
°
±
10
°
C.
MAXIMUM LEVELED OUTPUT POWER
Frequency
Range
(GHz)
Unlocked Narrow
FM Mode
(kHz RMS)
Unlocked Wide FM
Mode or Analog
Sweep (kHz RMS)
0.5 to
≤
1.0
(681X5B)
<1.25
<6.25
>1.0 to
≤
2.2
(681X5B)
<2.5
<12.5
0.01 (>2.2 for
681X5B) to
≤
20
<5
<25
>20 to
≤
40
<10
<50
>40 to
≤
65
<20
<100
Model
Number
Frequency
Range
(GHz)
Output
Power
(dBm)
Output Power
with Step
Attenuator
(dBm)
68137B
2.0 to
≤
20.0
+13.0
+11.0
68145B
0.5 to
≤
20.0
+13.0
+11.0
68147B
0.01 to
≤
20.0
+13.0
+11.0
68153B
2.0 to
≤
20.0
>20.0 to
≤
26.5
+9.0
+6.0
+7.0
+3.5
68155B
0.5 to
≤
2.2
>2.2 to
≤
20.0
>20.0 to
≤
26.5
+13.0
+9.0
+6.0
+11.0
+7.0
+3.5
68159B
0.01 to
≤
2.0
>2.0 to
≤
20.0
>20.0 to
≤
26.5
+13.0
+9.0
+6.0
+11.0
+7.0
+3.5
68163B
2.0 to
≤
20.0
>20.0 to
≤
40.0
+9.0
+6.0
+7.0
+3.0
68165B
0.5 to
≤
2.2
>2.2 to
≤
20.0
>20.0 to
≤
40.0
+13.0
+9.0
+6.0
+11.0
+7.0
+3.0
68169B
0.01 to
≤
2.0
>2.0 to
≤
20.0
>20.0 to
≤
40.0
+13.0
+9.0
+6.0
+11.0
+7.0
+3.0
68175B
0.5 to
≤
2.2
>2.2 to
≤
20.0
>20.0 to
≤
40.0
>40.0 to
≤
50.0
+11.0
+10.0
+2.5
+2.5
+10.0
+8.5
0.0
–1.0
68177B
0.01 to
≤
2.2
>2.2 to
≤
20.0
>20.0 to
≤
40.0
>40.0 to
≤
50.0
+12.0
+10.0
+2.5
+2.5
+10.0
+8.5
0.0
–1.0
68185B
0.5 to
≤
2.2
>2.2 to
≤
20.0
>20.0 to
≤
40.0
>40.0 to
≤
50.0
>50.0 to
≤
60.0
+11.0
+10.0
+2.5
+2.0
+2.0
+10.0
+8.5
0.0
–1.5
–2.0
68187B
0.5 to
≤
2.2
>2.2 to
≤
20.0
>20.0 to
≤
40.0
>40.0 to
≤
50.0
>50.0 to
≤
60.0
+12.0
+10.0
+2.5
+2.0
+2.0
+10.0
+8.5
0.0
–1.5
–2.0
Frequency Range
(GHz)
Residual FM
(Hz RMS)
0.5 to
≤
1.0
(681X5B)
<30
>1.0 to
≤
2.2
(681X5B)
<60
0.01 (>2.2 for 681X5B)
to
≤
8.4
<120
>8.4 to
≤
20
<220
>20 to
≤
40
<440
>40 to
≤
65
<880
Frequency
Range
(GHz)
Offset From Carrier
<300 Hz
300Hz to 1 kHz
>1 kHz
0.5 to
≤
1.0
(681X5B)
<–62
<–72
<–72
>1.0 to
≤
2.2
(681X5B)
<–56
<–66
<–66
0.01 (>2.2 for
681X5B) to
≤
8.4
<–50
<–60
<–60
>8.4 to
≤
20
<–46
<–56
<–60
>20 to
≤
40
<–40
<–50
<–54
>40 to
≤
65
<–34
<–44
<–48
681XXB OM
B-3
Changed: November 1995
PERFORMANCE
SPECIFICATIONS
