Dual-Channel ATSC modulator

Technical Specification

2 TS Inputs:Fully compliant with DVB-ASI standard188/204 packet length for ASI1 ASI TS Input, 1 ASI loop output per modulatorConnector type: BNC female, Impedance 75Ohm

TS Processing:Bit rate adaptationPCR adaptationMax TS Bit Rate Report

Modulation and channel coding:Energy DispersalReeds Solomon codingData field InterleaverTrellis Constellation Mapping: 8-VSBPilot InsertionChannel Bandwidth: 6MHzNyquist Filter

2 RF Outputs:Central frequency: VHF or UHFFrequency accuracy: +/-100HzSignal level(Main): 0dBm +/- 2dBAttenuation adjustable 0 to 10dB by 0.1dB stepSignal stability: +/- 0.5dBShoulder: >52dBc from Pilot levelSpurious: <-52dBc relative to total powerPilot Carrier Phase Noise:

<-96dBc/Hz@20KHzReturn loss: >12dBConnector type: N female, Impedance 50 Ohm

Test Signal Mode:23 bit PRBS TS SequenceSingle Test Tone:0dB or 6dB

2 RF Test Signals:Output Level : -20dBConnector: 2 BNC female, Impedance 50 Ohm

Clock Reference:Internal 10MHz clockExternal 10MHz reference input

Alarm and Control:Local control: 6 buttons, LCD screen, LEDDB-9 with 2 contact relays for alarms: TS Loss, Bit Rate Overflow, RF problemRemote control: User friendly man machine interface through RS-232 port

Physical condition:Power supply: AC 220V+/-15%, 80WOperating temperature: 0-50 degreesStorage Temperature: -10-70 degreesHumidity 10%-80% at 50 degreesDimension: L=540mm, W=483mm, H=44mm (1RU)Weight: Net 7 kg, Gross 11 kg