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Blonder-Tongue QTM-HD
8PSK/QPSK HD Input to 256 QAM Capable Output Transcoder Module

OUR PART #:  QTM-HD

The Blonder-Tongue QTM-HD [Mfr. stock# 6241] is a QAM Transcoder Module that accepts one QPSK or 8PSK format input, then delivers one output in up to QAM 256 mode.
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Our Price: $680.76
List Price: $686.25
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The Blonder-Tongue QTM-HD [Mfr. stock# 6241] is a QAM Transcoder Module that accepts one QPSK or 8PSK format input, then delivers one output in up to QAM 256 mode.

Blonder-Tongue QTM-HD Features:

  • Supports the 8PSK modulation typically used for High-Definition TV programming
  • Supports ITU-T J.83 Annex A and Annex B standards (QAM 16, 32, 64, 128, and 256)
  • Compact design allows for deployment of 8 transcoders, and power & control module, in 3RU rack space
  • Optional Headend Web Server allows for remote monitoring and control of each transcoder
  • Optional Standby Power Supply allows for uninterrupted service in the unlikely event of a primary power supply failure

Blonder-Tongue QTM-HD Specifications:

Input

  • Connector: “F” Female
  • Standards:  QPSK and 8PSK
  • Symbol rate: Variable; 2 to 45 MSymbols/sec (Mbaud)
  • Frequency Range: 950 to 2150 MHz
  • Frequency Granularity: 1 MHz
  • Bandwidth: Variable, up to 36 MHz
  • Capture Range: ± 5 MHz
  • Code Rate: Viterbi – Auto Detect
  • Forward Error Correction (FEC): DVB / DigiCiper® II
  • Input Level: -65 to -20 dBm
  • Impedance: 75 Ohms
  • Return Loss: 8 dB

Output

  • Connector:  “F” Female
  • QAM Modulation Modes:  16, 32, 64, 128, 256
  • DVB Symbol Rate:  Variable; up to 12.5 Msym/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 (120 dBµV)
  • RF Level LCD Screen Error:  ± 2 sB
  • RF Level Adj. Range:  30 to 40 dB
  • Frequency Tolerance:  ± 0.5 kHz @ 77 °F (25 °C)
  • Frequency Stability:  ± 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 Ohm
  • Return Loss:  12 dB
  • Spectral Inversion:  Auto Recognition
  • Carrier Suppression:  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%

General

  • Dimensions (W x D x H):
    • QT Module:  1.5 x 10.6 x 5.25 inches (38 x 270 x 134 mm)
    • QTPCM Module:  4.5 x 10.6 x 5.25 inches (114 x 270 x 134 mm)
    • QTRC Rack Chassis:  19 x 12.0 x 5.25 inches (483 x 305 x 134 mm)
  • Power:  105 to 240 VAC; 50/60 Hz
  • Power Dissipation:
    • QT Module:  10 W
    • Fully-loaded Rack Chassis:  87 W (8 QT Modules + 1 QTPCM)
  • Weight:
    • AQM Module:  1.7 lbs. (0.77 kg)
    • Fully-loaded Rack 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

Alarms/Monitoring/Control

  • Indicators:
    • QT Module:  Status (Green LED)
    • QTPCM Module:  LCD Screen
  • Local Monitoring:  Front-panel 6-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 QT-HWS-II module is installed)

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