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 |
