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    Channel Vision CVT1stereo-II — Digital RF Modulator Specifications

    September 08, 2026 2 min read

    Specification sheet for the Channel Vision CVT1stereo-II Digital RF Modulator, providing MTS Stereo audio/video modulation with 30+dBmV output for long cable runs.

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    Full text manual (for reference)

    Specification sheet for the Channel Vision CVT1stereo-II digital RF modulator (also available as a retail version, model R-CVT1stereo-II). Accepts one audio/video input for modulation onto a selected TV channel, providing MTS Stereo audio and a full 30+dBmV output for long cable runs.

    Overview

    The CVT1stereo-II combines digital circuitry, versatility, and power at an affordable price. PLL crystal-controlled oscillator circuitry makes set-up quick and easy: select the TV band, then use the push buttons to choose an unoccupied channel. Supports UHF 14-78, Ultraband 59-135, or split band 14-39 and 91-135. Includes an external impedance-matching switch for loop-through stereo audio.

    Features

    • MTS Stereo
    • Full 30+dBmV output
    • PLL Digital Circuitry
    • Video Level Adjustment
    • Ultraband (59-135) and UHF (14-78), excluding 95-99
    • External 75 ohm/1K ohm switch
    • Stereo output loop connections built in
    • Non-volatile channel memory
    • Push button channel selector
    • 3-digit LED display
    • Retail version available with max 15dB output (model# R-CVT1stereo-II)

    Specifications

    Category Spec Value
    RF Modulator Type PLL Synthesized Oscillator
    Video Standard NTSC
    Audio Type MTS Stereo
    RF Carriers Frequency Stability ±1KHz
    RF Carriers Frequency Ranges UHF 471.25-855.25MHz; Ultraband 433.25-859.25MHz
    RF Carriers Channels UHF 14-78, Ultraband 59-135
    RF Carriers Channel Width 6.0MHz
    RF Carriers Audio Offset 4.5MHz
    RF Carriers Sidebands Double
    RF Output Maximum 30+2dBmV
    RF Output Gain Range 20dBmV adjustable attenuator
    RF Output Video Output 1V Peak to Peak
    RF Output Audio Output 1V RMS
    Video Performance Differential Gain Less than 2% (0.2dB)
    Video Performance Differential Phase Less than 3 degrees
    Video Performance Signal/Noise Ratio Greater than 52dB
    Spurious Output Rejection Outside Carrier (±12MHz) Greater than 70dBC
    Spurious Output Rejection Inside Carrier (±12MHz) Greater than 55dBC
    Spurious Output Rejection Isolation Greater than 70dB
    Inputs Video 0.4V-2.7V Peak to Peak adjustable
    Inputs Audio 1V RMS
    Connectors Video Inputs RCA Female
    Connectors Audio Inputs RCA Female (stereo loop thru)
    Connectors RF Output F type female
    Connectors Signal Combiner Supplied with unit
    General Operating Temps 0°C to 50°C
    Transformer Input Input Voltage 115 VAC, 50/60Hz
    Transformer Input Power 8 Watts
    Transformer Input Output Voltage 26.0 VAC C/T @ 400mA
    General Exterior ABS resin fiber - black
    General Display 3 digit channel display
    General Channel Selector Up/Down selector buttons
    General Dimensions 9" x 6" x 2.8"

    Manufacturer: Channel Vision, 234 Fischer Avenue, Costa Mesa, CA 92626. (714) 424-6500 / (800) 840-0288.