Microsemi SyncServer S350 - Configuringthe Syncserver; Troubleshootingantenna Locations; Mountingoutdoors; Additionalresources

Using LF Radio
Note: LF radio signals have the greatest range at night, peaking around 1 AM local time. It
may be necessary to perform this procedure after dark.
Configuringthe SyncServer
1.
On the REFERENCES - LF Radio page, select the appropriate radio time service and click
APPLY.
2.
On the TIMING - HW Clock page, enable the LFR reference (shown as DCF77, JJY, or
WWVB) and click APPLY.
3.
Monitor the Signal Quality on the REFERENCES - LF Radio page for several days. At a min-
imum, there should be blocks of vertical green bars for each night. If not, the user should
re-evaluate the location of the LFR’s location.
TroubleshootingAntenna Locations
If the LFR’s LED indicates no signal (Solid On) or weak signal (Intermittent Flashing):
n Test LFR reception at night time. Use the battery holder/TNC cable.
n Move the LFR away from sources of radio frequency interference (RFI), such as switch-
ing power supplies, transmitting antennas, computers, transformers, HVAC, and other
electrical equipment or motors.
n Reposition the antenna away from or outside any shielding structures, such as metallic
enclosures.
n If a structure has too much RFI or shielding, it may be necessary to position the antenna
outdoors.
n Check that your location is within reasonable range of an LF transmitter.
MountingOutdoors
When mounting the LFR outdoors:
n Observe all local codes and regulations.
n It may be necessary to use a lightning/surge suppressor.
n Position the antenna away from sources of radio frequency noise.
AdditionalResources
Online References
n NIST Radio Station WWVB http://tf.nist.gov/stations/wwvb.htm
n PTB Website for DCF-77 http://www.ptb.de/en/org/4/44/442/dcf77_1_e.htm
n Japan Standard Time Project - JJY http://jjy.nict.go.jp/jjy/index-e.html
MicrosemiWorldwide Sales
Note: Please feel free to contact Microsemi Worldwide Saleshttp://www.-
microsemi.com/sales-contacts/0 online about borrowing a kit for testing Low Frequency
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