Repeater Compositions / ISDB-T Digital TV Broadcasting Relay Systems

Product code: 3272GD

Outline

This equipment is GPS adaptor for the generation of the signal of time. The GPS electric wave is received, and the pulse is output for one second that synchronizes with UTC (Universal Time) based on data that processes the signal. To using the broadcasting relay station, it operates in the DC power supply.

Structure

Main body
External size: 480(W) x 49(H) x 450(D)mm (Excluding protrusions)
Mass: 3.0kg or less

GPS receiving antenna
External size: 204(L) x 69(φ)mm
Mass: 0.4kg or less
Diameter of installation Paul: 35mm to 50mm

Specification

Antenna input	Input signal	GPS signal (L1)
	Connector	TNC-J
	Impedance	50Ω
1PPS output	Number	2(Back panel), 1(Front panel - monitor )
	Connector	BNC-J
	Impedance	50Ω, The pull-down at the terminal. The pull-up is improper.
	Level	TTL level
	Pulse width	0.5s, It provides for the timing at a positive second by the rising edge.
	Output condition	After the power supply is turned on and the GPS satellite is caught, it outputs.
		When the GPS reception becomes interrupted, the output is stopped.
Power supply		DC+48V±15% or less 2methods
Power consumption		15 W or less
Use conditions		Continuous use
Environmental requirements	Main body	Temperature	-10°C to +45°C (Range for in-spec)
			-20°C to +60°C (Range for spec restorable)
		Humidity	45% to 90%RH  (Without dew.)
	GPS antenna	Temperature	-25°C to +70°C (Range of performance maintenance)
		Humidity	20% to 100%RH (Without dew.)

Performance

1PPS signal
Time precision	±340ns or less
Repetition stability	±50ns or less
Level precision	VOH：2.4V or more
	VOL：0.4V or less