Relay Compositions of DTV Relay Stations

Product code: 6345T

Front view

Outline

This is a device used for the transmission and the reception separation station in the relay station. It separates the signal that has been sent from the reception part to analog-IF and digital-IF , and outputs it to the transmission conversion part. Besides, it sends the standard reference signal (10MHz) and AC60V power to the reception part by superposing them on the transmission line

Structure

JIS rack mount type
External size: 480(W) x 149(H) x 350(D)mm (Excluding protrusions.)
Mass: 16kg or less

Accessory

Name of articles	Specifications	Amount	Remarks
AC power cable	With 2PIN connector Length 2m	1	RM15QPS-2SA
DC power connector	4PIN	1	RM15QPS-4SA
Fuse	3.2A	3	SMP32-3.2A

Rating

Input frequency		Standard reference signal: 10MHz
Input level		Standard reference signal: +13dBm
Input impedance		50Ω
Input connector		BNC type FEMALE
Output frequency		Analog-IF: 19.5MHz ± 3MHz
		Digital-IF: 37.15MHz ± 2.79MHz
Output level		Analog-IF: 80dBμV
		Digital-IF: -10dBm
Output impedance		50Ω
Output connector		BNC type FEMALE
Transmission line I/O impedance		50Ω
Transmission line I/O connector		BNC type FEMALE
Transmission line		5D-2W (Transmission line loss maximum value)
Transmission line length		800m Target (It changes depending on the type, length, and the passing current of the transmission line.)
AC superposed power supply		AC60V 1.5A or less
Power supply voltage		AC: 100V ± 15% or less 50/60Hz
		DC: 48V(36 to 72V)
Power consumption		AC: 120VA or less
		DC: 150W or less
Use conditions		Continuous use
Environmental requirements	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.)

Performance

Frequency characteristics	0.4dBp-p or less In pass band
Input return loss	18dB or more
Gain	Analog-IF: 8dB or more
	Digital-IF: 33dB or more
	Standard oscillation: 4dB or more
NF	12dB or less
Inter-modulation (synthesis of transmission and reception)	Analog-IF: Input level of reception+7dB, At the maximum tilt -55dB or less
	Digital-IF: Input level of reception+7dB, At the maximum tilt -50dB or less
Output level changeable amount	±5dB or more
Tilt changeable amount	7dB or more( The tilt function is not provided for a standard oscillation.)
Isolation	30dB or more
Surge protection amount	DC 800V, Impulse 1000V
	(Surge arrester made by EPCOS company. From the parts catalog A71-H08 )