Home amplifier WA-36/37/40

 

 

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