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AQT
ATSC/QAM Transcoder 1x 8VSB/QAM ► 1x QAM
969 Horsham Road lHorsham, Pennsylvania 19044 USA l Phone: 215-675-2053 Fax: 215-675-7543 linfo@tonercable.com
AQT (ATSC/QAM Transcoder) accepts one input in 8VSB (digital off-air) or QAM (digital cable) format, and delivers
one output in QAM format in the 54-864 MHz range.
AQT can be utilized in a remote headend to “regenerate” a clean QAM channel from a degraded one. It also allows
TV sets to receive digital off-air programming on CATV channel assignements by transmodulating the 8VSB broadcast to QAM.
Features
• Input standards supported are digital off-air (8VSB & 16VSB) and digital cable (QAM 16, 32, 64, 128, and 256)
• Agile QAM output at +40 dBmV and in the frequency range of 54-864 MHz range
• Optional AQT-RCS module allows remote monitoring and configuration of up to 80 AQT modules
• Optional AQT-SPS unit provides standby utility power to the primary power supply (AQT Power & Control module)
Ordering Information
Model Stock # Description
AQT 6275 ATSC-to-QAM Transcoder
AQT-PCM 6276 AQT Power & Control Module
QTRC 6233 QAM Transcoder Rack Chassis
Options
AQT-RCS 2736 AQT Remote Configuration Server Module
AQD/AQT-SPS 6253 AQD/AQT Standby Power Supply
QTHF 6235 Headend Fan
HDA Series 6240 xx Integrated Combiner & Distribution Amplifier
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Specifications Subject To Change Without Notice Rev 04-12 ©Toner Cable Equipment, Inc.
969 Horsham Road lHorsham, Pennsylvania 19044 USA l Phone: 215-675-2053 Fax: 215-675-7543 linfo@tonercable.com
AQT
ATSC/QAM Transcoder 1x 8VSB/QAM ► 1x QAM
Specifications
Connector: “F” Female
Standards
8VSB/16VSB: ATSC Digital Television A/53E
QAM: ITU-T J.83 - Annex A & B
(16, 32, 64, 128, and 256 QAM)
8VSB/16VSB Modes
Tuning Range: VHF (NTSC Ch. 2-13), UHF (NTSC Ch. 14-69)
Data Rate: 19.392 Mbps
Bandwidth: 6 MHz
8VSB Power Level: -28 to 20 dBmV
16VSB Power Level: -25 to 20 dBmV
QAM Mode
Tuning Range: CATV (NTSC Ch. 2-135)
Data Rate: 38.8 Mbps (QAM 256);
26.97 Mbps (QAM 64) - Auto Detect
Bandwidth: 6 MHz
Power Level: -20 to +20 dBmV
Impedance: 75 Ω
Indicators
AQT Module: Status (Green LED)
AQT-RCS Module: Link/Transmit/Receive (3 x Green LEDs)
Local Monitoring: Front-panel 16-character, 2-line LCD screen
Local Control: Front-panel Navigational Key-pad
Remote Monitoring/Control: GUI-based menu via Web browser
(Available if the optional AQT-RCS module is installed)
INPUT OUTPUT
ALARMS / MONITORING / CONTROL
Dimensions (W x D x H)
AQT/AQT-RCS Module: 1.5 x 10.625 x 5.25 inches (38 x 270 x 133 mm)
AQT-PCM Module: 4.5 x 10.625 x 5.25 inches (114 x 270 x 133 mm)
QTRC Chassis: 19 x 12.0 x 5.25 inches (483 x 305 x 133 mm)
Power: 100 to 265 VAC/50 to 60 Hz
(Fuse:1 A, 250 VDC, SloBlo)
Power Dissipation: 10 W (per AQT module)
Weight
AQT/AQT-RCS Module: 1.7 lbs (0.77 kg)
Fully Loaded Chassis: 28 lbs (12.7 kg)
Operating Temperature: 32 to 122°F (0 to 50°C)
Storage Temperature: -13 to 158°F (-25 to 70°C)
Operating Humidity: 0 to 95% RH @ 35°C max, non-condensation
Storage Humidity: 0 to 95% RH @ 35°C max, non-condensation
GENERAL
Connector: “F” Female
QAM Modulation Modes: 16, 32, 64, 128, & 256
DVB Symbol Rate: Variable; 1 to 7 MSymbols/sec (Mbaud)
Frequency Range: 54 to 864 MHz
QAM Tuning
NTSC: Per channel’s number from 2 to 135
PAL: Per channel’s center-frequency
(12.5 kHz increments)
RF Level: +40 dBmV (100 dBμV)
RF Level LCD Screen Error: ±2 dB
RF Level Adjustment Range: 30 to 40 dBmV
Frequency Tolerance: ±0.5 kHz @ 77°C (25° C)
Frequency Stability: ±0.5 kHz over 32 to 122°F (0 to 50°C)
Amplitude Flatness: ±0.25 dB (over 6 MHz channel)
Phase Noise: -98 dBc (@ 10 kHz)
Spurious: -60 dBc
Broadband Noise: -75 dBc (@ +40 dBmV output level,
4 MHz bandwidth)
Impedance: 75 Ω
Return Loss: 12 dB
Spectral Inversion: Auto Recognition
Carrier Suppresion: 55 dB
SNR: Greater than 40 dB
MER: Greater than 40 dB
I/Q Phase Error: Less than 1 degree
I/Q Amplitude Imbalance: Less than 1%
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