Choose your favorite device from a variety of candidates and make advanced customization, which is the charm and advantage of Android. However, at the same time of the degree of freedom, many people point out that it is not easy to understand. In this session, we will explain the words "I don't know Android here" in a simple and easy way. This time, we will answer "what is the reason why the TV audio-visual phone comes with an 'antenna cable'?" the question.
On Android devices with built-in TV tuners, you can directly receive terrestrial broadcasting (full-band / single-band) and watch "TV" in real time like a fixed TV. Although the reception is not as unstable as fixed TV, and you can't get the high resolution and high quality of 4K/8K radio, but there is no time lag to enjoy sports broadcasting is the greatest advantage. In streaming, this is not done.
However, receiving ground waves requires an "antenna". In the past, most Android smartphones used telescopic rod antennas, but due to the trend of focusing on physical weakness, more and more "antenna cables" were used to connect headphone jacks.
The antenna cable is used to use the headphone cable as an antenna for terrestrial television broadcasting. Headset terminals are limited to terminals that support antenna cables, but with this cable, ground waves can be received without a rod antenna.
In general, the terminals of stereo headphones have 3 poles, and the terminals of antenna cables have 4 poles, of which 2 poles are used to receive broadcast waves. As long as the headset terminal is a terminal that supports the antenna cable, omitting the antenna cable directly connecting the headset can also replace the antenna, but due to problems with sound output, TV viewing is essential.
In addition, antenna cables are also sold from third parties. In terms of functionality, it doesn't change much with smartphone accessories, but it is also equipped with a rod antenna to assist with headphone cable reception, just like the electric company's "MPA-35ATRBK" series.
There are two types of TV antennas for smart phones: "stick antenna" and "antenna cable". |
