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    • Home amplifier WA-36/37/40

    Home amplifier WA-36/37/40

    Categories: Amplifiers, Analogue broadcasting Tags: amplifier, cable, house, TV signal, WA 36/37/40
    • Description

    Amplifiers are designed to amplify TV signals in cable television systems. The presence of a return channel and the ability to install a return channel amplifier allows the use of amplifiers in interactive cable TV networks.

    The WA-40R amplifier is manufactured from duple GaAs technology “from input to output”, allowing to obtain a higher level of output signal.

     

    Amplifier type WA-36R(A)-4/8

    WA-36RD(A)-4/8

    WA-37R(A)-4/8

    WA-37RD(A)-4/8

    WA-40R(A)-4/8

    WA-40RD(A)-4/8

    Frequency range Main channel, MHz 47-450/862 (58-450/862, 85-450/862)
    Feedback channel, MHz 5-30 (5-42, 5-65)
    Gain Main channel, dB >30 >36 >37
    Feedback channel, dB 0 (>15) 0 (>18)
    Unevenness amplitude-frequency characteristic, dB ± 0.7
    Max level of output signal (DIN45004B) IMD2 = -60dB IMD3 = -60dB Main channel, dB / μV 119/117 120/118 121
    Feedback channel, dB / μV (115) (116)
    Limits of gain adjustments of the main channel, dB 0…-20
    Limits for adjusting the slope of the amplitude-frequency characteristic of the main channel, dB 0…-20
    Coefficient of standing wave by the input (output) 1.4
    Noise factor, dB <7 <6
    Control tap, attenuation, dB 20+1
    Unevenness amplitude-frequency characteristic control tap, dB ± 1
    Power consumption, W (at 220V / 50Hz power supply) 5 6 6
    Supply For R(A) 220В/50 Hz
    For RD(A) 30-60В/50 Hz

    * Index “4/8” indicates the presence in the amplifier switch range of 450/862 MHz.

    * Index “A” indicates the presence in the device of the amplifier of the feedback channel.

    Feedback channel inserts Code
    Insertion 5-30 / 42 / 65 МHz А
    Insertion 15-30 / 42 / 65 МHz АF
    Insertion with gain control  5-30 / 42 / 65 МHz А1
    Insertion with gain control  15-30 / 42 / 65 МHz АF1
    Insertion with a fixed slope (3-4 dB) 5-30 / 42 / 65 МHz А2

     

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