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ClockWatch Radio Sync

Transmitter received  WWVB
Receive frequency 60 kHz
Transmitter locations Ft. Collins, Colorado USA
Barking Sands, Kauai, Hawaii, USA
Modulation type  10 dB carrier reduction
Receive bandwidth  7Hz @ 3dB points
S/N @ 50uV/meter  14 dB average daylight background
Reception Est >23 hours/day @ 50 uV/meter
signal strength with background
noise only (electrically noise free
Time acquisition Approximately 5 minutes for
complete time and flag validation
under noise free signal reception
Clock absolute accuracy +/- 0.045 sec upon reception .015
sec/hour drift during loss of signal
Clock repeatability +/- 2 milliseconds when "L" indicated
Date range Indicates correct year from 2000 to
Inputs/Connectors RS-232 Setup Interface: DB9 female
The port works at 9600 baud, 8N1.
Power 120VAC to +5VDC adapter (Included) 
Can also operate without adapter using RS-232
Warranty One year 
Weight  1.0 lbs. (0.5 kg)
Temperature 10 to 35C operating range, 0 to 95% relative humidity, non condensing. Indoor use only.
Antenna Ferrite loop stick, factory tuned

Size: 3.6" (w) x 5.4" (l) x 1.0" (t)
16 oz. (0.5 kg), not including cable
Cable:  6' of  RS232 cable (included). 

Client Software
  • An NIST or NTP client is required for client-side synchronization with the network time server.
  • ClockWatch Client is recommended for clients running MS Windows.
  • Contact Beagle Software for recommendations on clients for other operating systems.
External Time Sync Protocols Supported
  • NIST
  • Daytime
  • ACTS
  • NTP (RFC 1305)
  • SNTP (RFC 1361)
  • TIME (RFC 868)
  • IRIG-B (model TL-3)
Internal Time Sync Client Protocols Supported
  • NIST
  • Daytime
  • NTP (RFC 1305)
  • SNTP (RFC 1361)
  • TIME (RFC 868)
Receiver Dimensions  
5.4 in Long X 3.6 In Wide X 1 in Thick

For more information

Star Sync Product Information:
  Advanced Features
  Frequently Asked Questions about Radio time sync
How does it work?
  Radio Receiver
    Installation Information

Radio Sync Main Page
Radio Sync Site Index


For more information on Radio Sync, please complete the information request form.  Or call us toll-free at 1-877-845-2549.

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Copyright 2010 Beagle Software. All rights reserved
Last reviewed January 07, 2010