Description
Features
- Wharton 488HS receiver provides a precise coded time signal locked to the transmissions of the respective satellite chain.
- These receivers are designed to provide simple and very accurate time synchronisation for Wharton 5200 series Ethernet Time Servers or individual Wharton 4000 series Digital Clocks and Wharton 4700 World Time Zone Clocks.
- The receiver has a small, rugged IP65 rated weatherproof case housing both the active antenna module and the receiver/decoder interface.
- Provides a precise coded time signal locked to the transmissions of the respective satellite chain.
Installation & Technical
- The connection between the 488HS synchronisation system and the 5200 series network time server is by a four-core screened twisted pair cable up to 200m long. This cable also provides power to the 488HS receiver/decoder module, so no separate power source is required at location of antenna (eg. on the roof).
- The gain pattern of the antenna has full upper hemispherical coverage with the gain diminishing at low elevations. This cross-section is consistent through 360 degrees with a symmetrical spheroid surface 3-dimensional gain pattern.
- The 488HS series receiver system should be mounted horizontally with a clear view of 75% of the sky. If the sky view is less than 75%, the interval between ‘switch-on’ and system time synchronisation will increase significantly.
- We include a post mounting clamp for fixing the antenna to a suitable horizontal or vertical post of up to 32mm diameter. The antenna may be mounted on the roof of a building or under a suitable skylight.
- We include a 25m long, 4 core 0.5mm² (7/0.2mm) screened cable for connecting the receiver to the 5000 series time server or master clock. You can specify a 100m cable at extra cost.
- To ensure ease of operation and to remove the possibility of operator error, the 488HS system is designed to self-initialise without the necessity of operator data input. When powered-up the receiver will automatically begin to search the sky for all available satellites. After the acquisition of three satellites, a precise date and time calculation is made from the satellite data transmissions.
- When the 5200 series network time server is synchronised with the GPS receiver/decoder module, all transmitted signals are accurate to within +/- 50uS.
