Repeater Compositions / ISDB-T Digital TV Broadcasting Relay Systems

Product code: 5639MB

Outline

This is meter panel for analog meter display of power meter to measure and to observe RF level of each channel of MCPA (Multi Channel Power Amp) used by Digital Terrestrial Broadcasting. The level of the RF signal of two waves or less detected with the power meter is displayed with an analog meter. The measured power level percent display of rated power as 100% with an analog meter.

Structure

JIS rack mounting type
External size: 480(W) x 99(H) x 150(D)mm (Excluding protrusions)
Mass: 2.5kg or less

Function

• To display the RF level measured with a multichannel power meter with an analog meter.
• To display each item measurements of PA with an analog meter. (To display 3 PA by switching.)

Specification

Meter input	Voltage for measuring power	3 V DC voltage input at 100% of rating (4.5V at 150% high impedance)
Meter input voltage for measuring PA	PA output level display	200mV input at 100% of rating output ( Meter indicates 100.)
	Power supply voltage display	98mV input at +48V (Meter indicates 48.)
	FET current	60mV input at 1.0A (Meter indicates 1.)
Connector		For power meter D-sub 25S M2.6scre type
		For PA display D-sub 9S M2.6 screw type
VR range for meter adjustment		±10% or more (Special adjustment VR for multichannel power meter)
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.)