Appendix B
Performance Specifications
FREQUENCY
CW MODE
Output: Twenty independent, presettable CW frequencies
(F0 – F9 and M0 – M9).
Accuracy: Same as internal or external 10 MHz time base.
Internal Time Base Stability:
With Aging:
<1 x 10
-7
/day
(<5 x 10
–10
/day with Option 16)
With Temperature:
<2 x 10
-8
/
°
C over 0
°
C to 55
°
C
(<2 x 10
-10
/
°
C with Option 16)
Resolution:
1 kHz (0.1 Hz with Option 11)
External 10 MHz Reference Input: A c c e pt s ex tern al
10 MHz
±
100 Hz, 0 to +10 dBm time base signal. Automat-
ically disconnects the internal high-stability time-base option,
if installed. BNC, rear panel, 50
Ω
impedance.
10 MHz Reference Output: 0.5 Vp-p into 50
Ω
,AC coupled.
Rear panel BNC; 50
Ω
impedance.
Switching Time (typical maximum): <25 ms to be within
1 kHz of final frequency.
ANALOG SWEEP MODE
Sweep Width: Independently selected from 1 MHz to full
range continuous sweep. For >100 MHz sweep width, the
start, stop and bandswitching frequencies are phase-lock-
corrected during sweep. For
≤
100 MHz sweep widths, the
center frequency is phase-lock-corrected.
Accuracy: The lesser of:
±
30 MHz or
±
(2 MHz + 0.25% of sweep width) for sweep
speeds of
≤
50 MHz/ms.
Sweep Time Range: 30 ms to 99 seconds
PHASE-LOCKED STEP SWEEP MODE
Sweep Width: Independently selected, 1 kHz (0.1 Hz with
Option 11) to full range. Every frequency step in sweep range
is phase-locked.
Accuracy: Same as internal or external 10 MHz time base.
Resolution (Minimum Step Size):
1 kHz (0.1 Hz with Option 11)
Steps: User-selectable number of steps or the step size.
Number of Steps:
Variable from 1 to 10,000
Step Size:
1 kHz (0.1 Hz with Option 11) to the full fre-
quency range of the instrument. (If the step size does not
divide into the selected frequency range, the last step is
truncated.)
Model
Frequency Range
Output Power
68137B
2.0 to 20.0 GHz
+13 dBm
68147B
0.01 to 20.0 GHz
+13 dBm
68153B
2.0 to
≤
20.0 GHz
>20.0 to
≤
26.5 GHz
+9 dBm
+6 dBm
68159B
0.01 to <2.0 GHz
≥
2.0 to
≤
20 GHz
>20.0 to
≤
26.5 GHz
+13 dBm
+9 dBm
+6 dBm
68163B
2.0 to
≤
20.0 GHz
>20.0 to
≤
40.0 GHz
+9 dBm
+6 dBm
68169B
0.01 to <2.0 GHz
≥
2.0 to
≤
20.0 GHz
>20.0 to
≤
40.0 GHz
+13 dBm
+9 dBm
+6 dBm
With Option 15 (High Power) Installed
68137B
2.0 to 20.0 GHz
+17 dBm
68147B
0.01 to <2.0 GHz
≥
2.0 to
≤
20.0 GHz
+13 dBm
+17 dBm
68153B
2.0 to
≤
20.0 GHz
>20.0 to
≤
26.5 GHz
+13 dBm
+10 dBm
68159B
0.01 to <2.0 GHz
≥
2.0 to
≤
20 GHz
>20.0 to
≤
26.5 GHz
+13 dBm
+13 dBm
+10 dBm
68163B
2.0 to
≤
20.0 GHz
>20.0 to
≤
40.0 GHz
+13 dBm
+6 dBm
68169B
0.01 to <2.0 GHz
≥
2.0 to
≤
20.0 GHz
>20.0 to
≤
40.0 GHz
+13 dBm
+13 dBm
+6 dBm
MODEL SUMMARY
681XXB OM
B-1