line amplifier two way high gain more than 38db
Description
Trunk Amplifier Manual
1. Product Summary
CATV series amplifier mainly used in cable transmission system and it can offer high quality video transmission service.The equipment adopts surface mounting technology with elegant appearance and reliable performance.
The main component of bi-directional amplifier reverse path is modular structure. It’s flexible and convenient and it can be realized the bi-directional upgrade conveniently.
2. Performance Characteristic
-High-quality duplex filter, split points optional
-Forward amplifying circuit adopt two modules to enlarge. Low-noise push-pull amplifier module, make sure the noise indicator of equipment; later stage uses power double module.
-Adjustable attenuation and equalizer in forward and reverse path,equipped with two balancing attenuation adjustment, construction easier.
-RF test port in reverse path (-20dB).
-Two outputs, Changeable tap or splitter.
-High-reliability transformer power supply.
Item | Unit | Technical Parameters | ||
Forward Path Parameters | ||||
Frequency Range | MHz | 45 ~862 | ||
Nominal gain | dB | 36 | ||
Nominal RF input level | dBuv | 72 | ||
Nominal RF output level | dBuv | 108 | ||
Flatness | dB | ±1.0 | ||
Noise figure | dB | ≤ 10 | ||
Return loss | dB | ≥14 | ||
Gain adjustable range | dBm | 0-20 | ||
Slope adjustable range | dBm | 0-20 | ||
AGC accuracy | dB | ±3/±0.3 | ||
CTB | dB | ≥65 | ||
CSO | dB | ≥62 | ||
Group delay | ns | ≤10 | ||
Signal hum ratio |
| <2% | ||
(10/700us)Surge-resistant voltage | KV | >5 | ||
Gain stability | dB | -1.0+1.0 | ||
Return Path Parameters | ||||
Wavelength | nm | 1100-1600 | ||
Bandwidth | MHz | 5-30&42&65 | ||
Nominal gain | dBm | 18 | ||
Flatness | dB | ±0.75 | ||
Noise figure | dB | ≤ 12 | ||
Return loss | dB | ≥ 16 | ||
Gain adjustable range | dBm | 0-20 | ||
Slope adjustable range |
| 2dB step | ||
IM2 | dB | 52 | ||
Group delay | ns | ≤ 20 | ||
Signal hum ratio |
| <2% | ||
General Characteristics | ||||
Power Voltage | V | A:AC(150~265)V;B:AC(35~90)V | ||
Operating Temperature | ℃ | -40~60 | ||
Consumption | VA | ≤ 30 | ||
Dimension | mm | 265*210*100 | ||
4. Schematic figure
Additional information
| Place of Origin: | Shandong, China |
|---|---|
| Brand Name: | hensure |
| Model Number: | G303 |
| Product name: | line ampifier |
| Bandwidth: | 45-862MHz |
| Nominal RF output level: | 110dBuV |
| Foward path gain: | 40dB |
| Return path gain: | 18dB~30dB |
| Nominal RF input level: | 72dBuV |
| Return path bandwidth: | 5~30&42&65MHz |
| Power voltage: | AC35~95V&AC110~260V |
| Warranty: | 1 Year |
| Weight: | 1.5kg |