关于我们许多家庭用户来讲，投影机和其它提供输入源的设备都不会离得太远，一般也就一到两米，所以我们一般挑选1.5米的HDMI线就能够了。在HDMI线材挑选里，5米以下都可认为是短间隔传输，HDMI线的挑选比较简单，影响线材质量的一个重要是要素的导线的粗细，能够分为24、26、28和30号几种线，数字越小，线径越粗，效果越好。关于5米以下的线，挑选28和30号的线即可。

For many of our home users, projectors and other devices that provide input sources do not go too far, typically one to two meters, so we typically pick a 1.5 meter HDMI cable. In HDMI cable selection, 5 meters can be considered short interval transmission, HDMI cable selection is relatively simple, affecting the quality of the wire is an important element of the thickness of the wire, can be divided into several 24,26,28 and 30 Line, the smaller the number, the thicker the diameter, the better the effect. About 5 meters below the line, pick the line 28 and 30 can be.

   长间隔传输，在传输1080i或720P信号时，不同不大，可是传输1080P信号时，对线材的要求很严苛，假如线的质量不过关，轻则呈现屏幕跳动，大片红斑现象，重则没有信号。

Long interval transmission, the transmission of 1080i or 720P signal, the difference is not large, but the transmission of 1080P signal, the wire is very demanding, if the quality of the line but off, ranging from the screen beating, large erythema phenomenon, while the no signal.

   因而长间隔线的挑选要十分谨慎。挑选的时分，不能仅看线的外部粗细，许多看上去很粗的线，仅仅外皮做的厚，实际上都是28号线，底子不能传输1080P。

Therefore, the selection of long intervals should be very cautious. The time of selection, not only the external thickness of the line, many seemingly thick lines, only the skin to do thick, in fact, are 28 lines, the foundation can not transmit 1080P.

   的信号。10米以上的HDMI线传输1080P信号，要求最好是24号线，至少也要确保26号线。24号线，传输1080P信号，能够到达45米。而28号线传输1080P信号，即使是10米间隔也无法确保质量。

Of the signal 0.10 m HDMI cable transmission 1080P signal, the best is the 24th line, at least to ensure that the 26 line 0.24 line, transmission 1080P signal, to reach 45 meters. While line 28 transmits 1080P signals, quality is not guaranteed even at 10-meter intervals.

   HDMI接口一个最大长处是使用便利，只需一根线，音频视频就能够悉数传输。并且接口设计的十分便利拔插，不需要按动任何按钮就能够简单的插上拔下。可是这样却带来了另外一个问题，假如在开机状态下，直接插上或拔下，很简单形成将HDMI接口的芯片焚毁。因而在拔插HDMI线的时分，千万不要热拔插，必须将投影机和相关衔接设备都封闭之后，才干拔插。

HDMI interface, one of the greatest strengths is the ease of use, just a line, audio and video can be fully transmitted. And the interface design is very convenient plug, do not need to press any button can simply plug unplug. However, this has brought another problem, if the boot state, directly plugged or unplugged, it is easy to form the HDMI interface chip burned. Therefore, when plugging and unplugging HDMI cable, do not hot-swappable, the projector and related devices must be closed after the plug.