Specifications
1.CATV bidirection trunk amplifier2.Waterproof type
3.Obverse output level is 98,102dBuV
4.Reverse output level is 90,96dBuV
CATV Bi-Direction Trunk Amplifier EHA820
1.0 Products Description
EHA820 Bi-directional Trunk Amplifier is special designed for satisfy the requirements of CATV HFC web structure expandation to the interactive service area .Its obverse is double module magnify, and its reverse is single module magnify, downlink bandwidth from 750MHz or 860MHz, and its uplink can be adjusted according to the subscriber’s practical condition .In order to adapt the network upgrade and regeneration in the future ,it adopts module structure each unit relatively independent ,and can be inserted ,pulled and replaced agility.Then the subscribers can pertinently choose them with the web’s practicality.
2.0 Features
1. 860MHz,750MHz wide ,can satisfy the transmission of simulate and digital signal;
2. Has bilateral function ,make the web much more consummate;
3.High target ,standard bilateral filter ,USE and interchange very conveniently;
4. Supply various division ways;
5. Supply reverse magnify and obligate.
3.0 Technology Parameter
Item | Unit | Obverse Parameter | Reverse Parameter |
Work Frequency | MHz | 47 ~ 750/860(87 ~ 750/860) | 5 ~ 35(5 ~ 65) |
Operating Gain | dB | 36 ~ 40 | 15 ~ 21 |
Gain adjust range | dB | Fixed 1357…… | Fixed 1357…… |
Flatness In Band | dB | ±0.5 | ±0.5 |
Input Level | dBµV | 72 | 75 |
Output Level | dBµV | 98 102 | 90 96 |
Noise Figure | dB | 8 | 8 |
CSO | dB | 70 66 |
|
CTB | dB | 75 67 |
|
Return Loss | dB | 16 |
|
Carrier Hum Ratio | dB | 66 |
|
Shock Resist Voltage | KV | 5(10/700µS) |
|
Power Voltage | V | AC60/AC220(50Hz) |
|
4.0 Functional Block Diagram
Certificates :