The ground wave digital TV at home has no image recently?Relevant departments explain

The Yangtze River Daily Da Wuhan client June 21 (Reporter Yin Qinbing) Wuhan ground wave digital TV has no images recently. Is it stopped broadcasting or equipment maintenance? On June 20, a reporter from the Yangtze River Daily interviewed the relevant departments on the above questions reflected on the citizens on the message board of Wuhan City.

Mr. Yan, who lives in Hanyang, said that about a week ago, he found that the ground wave digital TV that could be watched in the family suddenly had no signal and image. Mr. 州 often lives in two cities in Guangzhou and Wuhan. Because home lives on the 19th floor, two years ago, he purchased ground wave digital TV equipment and was used to watch news when you live in Wuhan.

Similarly, Mr. Wang, a citizen, also found that the ground wave digital TV at home could not watch it. They all wanted to know, "What causes it, when can it recover?"

The reporter learned that some tourist buses were also installed on a vehicle DTMB ground wave digital TV. The temporary stopping on TV has impact some audiences.

On June 20, the reporter contacted the Wuhan Cultural and Tourism Bureau. The relevant person in charge of the Broadcasting and Television Management Office of the Bureau said: Wuhan Wireless ground digital television signal (DTMB) was launched by the Kuishan TV Station of Hubei Radio and Television. Management of industry. According to reports, the ground wave digital TV has a certain coverage. As a free benefit, compared with cable TVs, there are not many TV stations and programs, but basically it can meet the daily needs of some elderly people watching news and TV programs.

After consulting the Provincial Radio, Film and Television Bureau, in order to accelerate the development of 5G of radio and television 5G, the State Administration of Radio, Film and Television officially launched the 700 MMS migration project of the ground digital television, and the provincial Guishan TV station was included in the second batch of implementation stations in Hubei Province's 700 Mzhz frequency. In order to ensure the smooth progress of migration work, the digital TV transmission system of Guishan Terrace needs to replace the launch machine, feedback management, feeder and other equipment. It has been shut down on June 13th. The shutdown will last for a month. Restore broadcast.

The person in charge suggested that the citizens wait patiently, and they can watch it normally after the equipment is replaced.

Digital Television

Digital TV technology is generally divided into three types: cable digital TV, satellite digital TV and ground digital TV. There are different broadcast standards in different regions of the world.

The ground digital TV watched the TV show by receiving the ground digital TV signal issued by the TV tower. In terms of TV, it is necessary to have a ground digital TV signal receiving capability. If it is an old -fashioned simulation TV, you can also receive it through a dedicated top box, and then convert it to an analog signal to connect to the TV.

In Mainland China, most citizens watch digital TV through urban cable TV networks. Digital TVs are mainly targeted at the suburbs, villages and other regions without network coverage, as well as mobile terminals such as vehicle digital TVs and mobile phones. On January 1, 2008, the CCTV HD channel began trial broadcast, which represents the beginning of the development of China's wireless ground digital TV signals.

At present, many cities in my country have opened ground digital TV signals and are not charged.

The difference between analog signal and digital signal

In the past, the state closed the TV simulation signal, and some people thought that they could not watch the TV for free. In fact, the digital signal is replaced, also known as the ground wave or DTMB, or you can watch the TV for free.

What TV equipment can continue watching TV for free?

1. Generally, more than 40 -inch televisions that are issued after 2014 support DTMB. However, you need to buy another DTMB indoor antenna or outdoor antenna.

2. If the TV does not support DTMB, you can buy a DTMB set -top box and antenna separately. In this way, the old TV can continue to watch.

【Edit: Zheng Xiaoxiao】

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