数字电视天线特性
|
NO |
项目(Item) |
特性(Specifications) |
PostEnvironmental Tolerance (试验后允许附加误差) |
|
1 |
数字电视 接收频率范围VHF（MHz） Range of Receiving Frequency |
170~230MHz |
±2.5 |
|
2 |
数字电视 接收频率范围UHF（MHz） Range of Receiving Frequency |
470~862MHz |
|
|
3 |
带宽Band Width(MHz) (Retum Loss≤-10dB) |
≥10 |
±0.5 |
|
4 |
驻波比V.S.W.R(in Center Frequency) |
≤1.5 |
±0.5 |
|
5 |
增益Gain (Zenith)(dBi typ) (with 70mmSquare GND plane) |
20 |
±3 |
|
6 |
放大器增益 |
20dB±2 |
±2 |
|
7 |
工作电压 |
5-12V |
---- |
|
8 |
特性阻抗Impedance(Ω) |
50 |
---- |
|
9 |
电流 |
25~35mA |
±2 |
