Specifications, Demodulator specifications, Modulator specifications – Drake ACT1000 ATSC to QAM Transcoder User Manual
Page 4: Psip table handling
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.