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Specifications, Demodulator specifications, Modulator specifications – Drake ACT1000 ATSC to QAM Transcoder User Manual

Page 4: Psip table handling

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4

DEMODULATOR SPECIFICATIONS

Input Frequency Range: 54-1002mHz

Channel plans supported: Standard CatV, HRC, iRC, Broadcast

Input Channel Bandwidth: 6mHz

Input RF Level Range: -33dBmV to +35dBmV, 8VSB

-22dBmV to +35dBmV, 64Qam

-17dBmv to +35dBmV, 256Qam

Input Impedance: 75 ohms

Input Return Loss: >6dB, Broadcast mode; >12dB, CatV mode

Image Rejection: 80dB

Adjacent Channel Rejection: 40dB

Noise Figure: <9dB, Broadcast mode; <12dB, CatV mode

Demodulation Modes: 8VSB atSC, 64Qam annex B, 256Qam annex B

Symbol Rates: 10.76ms/s (8VSB); 5.057ms/s (64Qam); 5.3606ms/s (256Qam)

Specifications

Specifications subject to change without notice or obligation.

PSIP Table Rewriting Supported

MGT/VCT Table Generation Supported

Temperature Rating 0-50C ambient

MODULATOR SPECIFICATIONS

Modulation Modes: 64, 256Qam itu j.83 annex B

16, 32, 64, 128, 256Qam itu j.83 annex a

Symbol Rates: 1-7msps variable, with presets for annex B

Frequency Coverage: 54-1002mHz

Channel Plans: Standard CatV, HRC, iRC, Broadcast

Max Output Power: +45dBmV max.

Min Output Power: +29.5dBmV

Phase Noise: -95dBc/Hz@10kHz offset

Broadband Noise: -75dBc@12mHz offset in a 6mHz bandwidth

MER: >40dB equalized

Channel Frequency Response: <1dB

Carrier Suppression: >40dB

I/Q Imbalance: <1 degree

Output Level Accuracy: ± 1dB

Spurious Emissions: <-60dBc

PSIP TABLE HANDLING

Form Factor fits in Drake Digital Rmt150 chassis

Dimensions 1.1"W x 3.4"H x 13.25"D

Weight 1lb 6oz

Power Requirements all power provided by the Drake® PS151 power supply. PS151 power requirement: 90-260VaC 150W

maximum with 10 transcoders.