Blonder Tongue AMCM Series Agile Micro Channel Modulator

Blonder Tongue AMCM Series Agile Micro Channel Modulator

Blonder Tongue AMCM Series Agile Micro Channel Modulator

B&H # BLAMCM860D MFR # AMCM-860D
Blonder Tongue AMCM Series Agile Micro Channel Modulator

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Product Highlights

  • Auto Audio Gain Control (AGC)
  • SAW Filtering
  • Die-Cast Chassis
  • Requires MIRC-12D / MIRC-4D Rack Chassis
  • Up to 12-Channels in 2RU Rack Chassis
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  • 1Description
The AMCM Series Agile Micro Channel Modulator from Blonder Tongue is a module that installs in the MIRC-4D or MIRC-12D rack chassis, not included. It forms part of an RF modulation system for analog CATV applications, and supports an output frequency range of 54 to 860MHz.
Audio Auto Gain Control (AGC)
  • Prohibits commercials that accompany broadcast programs from having modulation levels substantially higher than the broadcast program; and having an average maximum loudness substantially higher than that of the broadcast program
  • Provides consistent audio levels among all broadcast programs on different channels and among different programs within the same channel
Modular design allows for deployment of 12 channels in a single 2RU rackmount chassis
Utilizes SAW filters for improved performance
Die-cast chassis for RFI immunity
In the Box
Blonder Tongue AMCM Series Agile Micro Channel Modulator
  • Limited 3-Year Warranty
  • Table of Contents
    • 1Description
    Connectors
    Input RF Connector
    1 x F type female
    Impedance: 75 ohm
    Return Loss: 24 dB return loss
    Input Level: 1.0 V peak-to-peak - 87.5% depth of modulation
    Frequency Response: 1.0 dB peak-to-valley - fv to fv+4.2 MHz Video-to-RMS Hum Ratio: 65 dB peak-to-peak
    Signal-to-Noise Ratio: 62 dB - weighted at 4 MHz bandwidth
    Differential Gain: 2.0%
    Differential Phase: 1.0° - 87.5% depth of modulation
    Chrominance / Luminance Delay: Per FFC requirements

    Mono Audio
    1 x RCA female
    Impedance: > 10 ohm unbalanced / 600 ohm balanced
    Input Level: 0.5 to 4.0 V peak-to-peak - for 25 kHz deviation; constant AGC range
    Frequency Range: 50 Hz to 15 kHz
    Frequency Response: ۫ dB
    Total Harmonic Distortion: 1% at 25 kHz deviation
    Signal-to-Noise Ratio: 66 dB
    Over-modulation Threshold: 25 ± 2 kHz peak deviation
    Output RF Connector
    1 x F type female
    Impedance: 75 ohm
    Return Loss: 12 dB return loss
    Frequency Range: 54 to 860 MHz - NTSC CATV channels 2 to 135
    Power Level: +45 dBmV
    Power Level Range: 10 dB continuously adjustable
    Carrier-to-Noise: (In Channel): 63 dB
    Broadband Noise (4 kHz bandwidth): -75 dBc at +45 dBmV output level
    Spurious Outputs: -60 dBc
    Aural / Visual Carrier Ratio: -11 to -19 dB continuously adjustable
    4.5 MHz Aural Inter-carrier Frequency Tolerance: ±150 Hz; 32 to 122°F / 0 to 50°C
    FCC Aeronautical Channels: ±5 kHz; 32 to 122°F 0 to 50°C
    General
    Alarms / Monitoring / Control Front-Panel Indicators
    Channel Number and Mode: 2-digit red LED display
    +100 Channels: Red LED
    Video Over-modulation: Red LED
    Audio Over-modulation: Red LED

    Front-Panel Controls
    Output Level: Potentiometer
    Video Level: Potentiometer
    Audio Level: Potentiometer
    Aural Carrier Level: Potentiometer
    Power Requirement 100 to 240 VAC at 50 or 60 Hz
    Power Consumption 5 W maximum
    Operating Temperature 32 to 122°F / 0 to 50°C
    Storage Temperature -13 to 158°F / -25 to 70°C
    Humidity 0 to 95% RH at 95°F (35°C) maximum, non-condensing
    Dimensions 1 x 7.8 x 3.5" / 25 x 198 x 89 mm
    Weight 0.8 lb / 0.4 kg
    Packaging Info
    Package Weight 1.0 lb
    Box Dimensions (LxWxH) 10.5 x 4.3 x 1.2"

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