488HS4-GPS Time Signal Receiver

Installation

• The connection between the 488HS4-GPS 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 488HS4 receiver/decoder module.
• 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 488HS4 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 be attached 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 with the code 488HS4-100M.
• To ensure ease of operation and to remove the possibility of operator error, the 488HS4 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 or GLONASS receiver/decoder module all transmitted signals are accurate to within +/- 50uS.