|
Size: 1204
Comment:
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Size: 1310
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 14: | Line 14: |
| * Most of the RF components are not secured to the chassis. This may cause undesired acoustic coupling. |
Low Noise VCOs
Descriptions
Low phase noise, a center frequency of 70 MHz, actuation range of several 100 kHz, aaa dBm output
Prototype model
Designed by Y. Enomoto (2018), inspired by LIGO low noise VCOs. JGW-D1808968
Frequency Noise
Worse than the specification for the non-divided phase noise (klog 7425).
- Most of the RF components are not secured to the chassis. This may cause undesired acoustic coupling.
Frequency [Hz]
Measured Frequency noise [Hz/Hz^1/2]
Equivalent Phase noise [dBc/Hz]
ROS-102-919 specification w/o frequency division [dBc/Hz]
0.01
5
51
--
0.1
0.4
9
--
1
0.1
-23
--
10
0.05
-49
--
100
0.05
-69
--
1,000
0.05
-89
-98
10,000
0.03
-113
-123
100,000
--
--
-143
Tuning Range
Endeavour model
- Sophisticated version of the prototype model.