Under the analogue environment , television signals are subject to interference by other signal sources such as power line , reflections from buildings , etc . the reception quality is therefore less than ideal 模拟系统所传送的电视讯号容易因被其他可影响讯号的事物例如：电线建筑物的反射等干扰而失真，因此，所接收的画面及声音质素未能符合理想。
Under the analogue environment , television signals are subject to interference by other signal sources such as power line , reflections from buildings , etc . the reception quality is therefore less than ideal 模拟系统所传送的电视讯号容易因被其他可影响讯号的事物（例如：电线、建筑物的反射等）干扰而失真，因此，所接收的画面及声音质素未能符合理想。
Company produce the high quality remote controls and also produce other electronic products such as amplifier , filter , usb remote and receiver set , telephone amplifier , video transceiver and so on . the factory adopts a high standard control management and is supported by a world - class research team 除万能遥控器外本公司也生产多项电子产品：扩大机电视讯号滤波器声音无线传输电话扩音器电子安定器人体感应器发射接收器设计制造生产等。
As the test signals of the trial will be transmitted via channels 35 and 37 ( never been used before to transmit television signals ) , thus the television antenna systems using the said channels or the adjacent channels 34 , 36 and 38 for other usages , such as the video cassette recorder ( vcr ) channel or closed circuit channel , might encounter interference during the said period 是次测试使用的第35及37频道，由于以往未有用作电视讯号发射，故任何电视天线系统如透过以上频道或相邻频道(即34 、 36及38 ) ，作其他用途，例如用作录影机播带频道，保安摄影机频道等，将可能受到干扰。
