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Blonder Tongue Channelized Agile Audio/Video Modulator w/ 60 dBmV 54-300 MHz (MAVM-60-861)

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Blonder Tongue Channelized Agile Audio/Video Modulator w/ 60 dBmV 54-300 MHz (MAVM-60-861)

Brand: Blonder Tongue           P\N: MAVM-60-861          

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Availability: Discontinued

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Description


Solid Signal is an Authorized Reseller of Blonder Tongue products.
Solid Signal is an Authorized Reseller of Blonder Tongue products.
The MAVM Series are professional quality,channelized agile, heterodyne audio/video modulators. They provide audio and video modulated RF output on any VHF, UHF, or CATV channel (7 to 860 MHz). Sub-band channels T7-T11 are available.

Features


  • OPTION: AL CHANNELS: 2-6, 95-99, 14-22, 7-13, 23-36

  • EAS/ALT ready via manual or automatic mode

  • Front panel accessible level controls for easy set-up and adjustments

  • Rack mountable - 1 EIA (1.75 in) rack space

  • Exceptional broadband noise performance of -110 dBc

  • -60 dBc spurious response for the entire level range

Specs


The MAVM Series are professional quality, channelized agile, heterodyne audio/video modulators. They provide audio and video modulated RF output on any VHF, UHF, or CATV channel (7 to 860 MHz). Sub-band channels T7-T11 are available.

Any standard audio/video source can be used, such as satellite receivers, television cameras, video tape recorders, or television demodulators. These modulators feature a low cost, removable single channel output filter module to provide a channelized configuration. Customer requests for individual channels can be easily accomplished by combining the frequency agile mainframe with the desired removable output filter module. Modulators may be ordered as completed assemblies or as configurable modules.

The MAVM Series takes baseband audio and video and modulates these signals onto the desired output channel (each modulator has separate audio and video inputs). The heterodyne conversion process used in the MAVM Series employs a crystal referenced, PLL synthesized local oscillator, with a 12.5 kHz tuning increment. This guarantees rock solid, no-drift output for the life of the modulator. A custom SAW filter is employed to provide true vestigial sideband selectivity with built-in FCC group delay pre-distortion.

An external IF loop is standard which allows interfacing with video all-call and signal scrambling systems as well as the ability to lock to either baseband or a 4.5 MHz aural carrier. The MAVM Series meets FCC Docket 21006 aeronautical frequency offset requirements (±5 kHz video carrier accuracy) and accepts standard polarity (sync negative) video in the range of 0.7 to 2.8 V p-p. Field-defeatable audio pre-emphasis enables transmission of BTSC standard composite stereo signals. Output Filter Modules are factory tuned channelized units that are used with the CAM, CAP & MAVM product lines. They are available with +40 dBmV or +60 dBmV output levels and can be order for any channel in the CATV (2-135), UHF (14-69) or Sub-Band (T7-T11) channel ranges.


RF
    Frequency Range: 7-37 and 54-860 MHz
    Channels: SUB, CATV, VHF, UHF
    Output Level - Min
        7-37 MHz: +42/+60 dBmV
        54-648 MHz: +42/+60 dBmV
        648-860 MHz: +40/+58 dBmV
    Output Level Adjust: 15 dB
    Aural/Visual Carrier Ratio: -9 to -20 dB
    Visual Carrier Frequency Tolerance
        Standard Channels: ±5 kHz
        FCC Aeronautical Channels: ±5 kHz
    Aural Carrier Frequency
        Offset from Visual Carrier: 4.5 MHz
        Accuracy, Settable To (STD.): ±150 Hz
    Channel Selectivity:
        Adjacent Aural and Below: -40 dB
        Adjacent Picture and Above: -40 dB
    Spurious Outputs: -63 dBc
    C/N Ratio In Channel: 63 dB
    Broadband Noise (40/60): -95/-110 dBc
    Output Impedance: 75 Ù
    Output Return Loss: 15 dB

IF
    Aural Frequency: 41.25 MHz
    Visual Frequency: 45.75 MHz
    Composite IF Loop Output
        Aural Carrier Level: +20 dBmV
        Visual Carrier Level: +35 dBmV
    Output/Input Impedance: 75 Ù
    Output Return Loss: 10 dB
    Input Return Loss: 16 dB
    EAS/ALT IF Input Level: 38 dBmV,
        @ 45.75 MHz
    EAS/ALT IF Switch Isolation: >60 dB

Video
    Input Level: 1.0 V p-p
    Frequency Response
        fv-0.5 MHz to fv+4.2 MHz: ±1.5 dB
    P-P Video to RMS Hum Ratio: 65 dB
    Video Signal-to-Noise Ratio, Weighted: 58 dB
    Differential Gain: ±2.0 %
    Differential Phase: ±1.0 °
    Over Modulation Indicator: 87.5, ±2.5 %
    Input Impedance: 75 Ù
    Input Return Loss: 18 dB

Audio
    Input Level: 140 mV RMS
    Frequency Range: 20 Hz to 20 kHz
    Frequency Response: ±1.0 dB
    Pre-Emphasis-Mono: 75 ìs
    Audio Signal-to-Noise: 60 dB
    Total Harmonic Distortion: 0.6 %
    Over Modulation Indicator: 25, ±2 kHz
    Input Impedance: 10 k, Ù unbalanced

Sub-Carrier Audio
    Frequency: 4.5 MHz
    Stability Standard: ±500 Hz

General
    Power Requirements
        Voltage: 117, ±10% VAC
        Frequency: 60 Hz
        Power:  MAVM-40-861: 6.5 W
                       MAVM-60-861: 9.0 W
    Fuse:  MAVM-861: 1/4 A
                MAVM-863-3: 0.8 A
    Temperature Range: 0 to +50 °C

Mechanical
    Dimensions (W x H x D):
        MAVM-861:
        19 x 1.75 x 5.5 in., 483 x 44 x 140 mm
        MAVM-863-3:
        19 x 1.75 x 16.25 in., 483 x 44 x 413 mm
       Weight:   MAVM-861: 6.0 lbs., 2.73 kg
                        MAVM-863-3: 10.8 lbs., 4.91 kg

Connectors
    Video Input: "F" Female
    Audio Input: RCA Female
    IF Output: "F" Female
    IF Input: "F" Female
    RF Output: "F" Female
    EAS/ALT Input: 75 Ù "F" Female

Controls
    Video Level: Control
    Aural Carrier Level: Control
    Audio Level: Control
    RF Output Level: Control

Indicators
    Channel Selection: DIP Switches
    Power On: LED, Green
    Video Over Modulation: LED, Red
    Audio Over Modulation: LED, Red


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