added by Guanghua Gong on 2019-01-10 02:34:33.301841
The performance of WRS-FL-LJ, a special version of WRS-FL with
low-jitter circuits support, has been tested.
Comparing to standard WRS-FL, the WRS-FL-LJ includes two major
1: adding a extra AD9516 for 10MHz clock input
2: replacing the TCVCXO VM53S with a better TCVCXO or OCXO (
T604-025.0M used in this test).
The phase noise performance and Allen deviation test results are
WRS-FL-LJ as GrandMaster
WRS-FL-LJ after 10 cascade stages
Phase Noise Performance
-100.1dBc/Hz at 1Hz,
-103.0dBc/Hz at 10Hz,
-119.8dBc/Hz at 100Hz,
-135.5dBc/Hz at 1KHz
-87.1dBc/Hz at 1Hz,
-84.3dBc/Hz at 10Hz,
-115.7dBc/Hz at 100Hz,
-134.9dBc/Hz at 1KHz,
added by Guanghua Gong on 2018-11-30 02:31:48.096177
Over 100 WRS-FL has been produced, many of them will be installed at
Daocheng, The LHAASO site.
WRS-FL V1.2 Reviewed by LHAASO projected.
added by Guanghua Gong on 2018-09-05 07:31:48.690261
Due to the harsh environment of LHAASO project, we redesign the WR
switch to improve the heat dissipation thus avoid the necessary of the
fan. After several months of development and testing, 50 WRS-FL has been