Repeater Compositions / ISDB-T Digital TV Broadcasting Relay Systems

Product code: 5639MD

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 wattmeter with an analog meter by four channels.
  (Meter 4 displays the measured RF level and the PA measurement by switching.)
• To display each item measurements of PA with an analog meter.

Specification

Meter input	Voltage for measuring power		3 V DC voltage input at 100% of rating (4.5V at 150% high impedance)
	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)
Environmental requirements		Temperature	-10°C to +50°C
		Humidity	45% to 90%RH (Without dew.)