So, Wi-Fi waves are basically just radio waves. So, that's the same as the electromagnetic waves you pick up with your cell phone or a radio. But Wi-Fi waves are fairly short. They're only 12 centimeters long, the conventional kind—compare that to AM radio waves, which are hundreds of meters long. The signal gets a lot weaker as it gets further from the router. And, generally, it can't really go more than 150 feet from a single router. They actually get absorbed and blocked by walls and metal surfaces. And so, the way you position your Wi-Fi router makes a huge difference in how strong the signal is throughout your house.
Wi-Fi 基本上就是無線電波。跟手機或收音機發出的電磁波是一樣的。但 Wi-Fi 的波長很短。一般類型大概都只有 12 公分－－相較之下，AM 無線電波的波長可以長達數百公尺。Wi-Fi 距離路由器越遠，訊號會越弱。一般來說，路由器能覆蓋的範圍不超過 150 英尺（約 45 公尺）。無線電波通過牆壁和金屬表面時也會被吸收阻擋。所以，Wi-Fi 路由器的擺放位置會大幅影響你家中 Wi-Fi 的訊號強度。
One: Place your router out in the open.
第一：將路由器擺在空曠的地方。
One thing you definitely want to do is put your router near the center of your house because it broadcasts the signal out in equal strength in all directions. So, you want it out in the open. And, like, if it's in a closet, the walls of the closet are gonna absorb and block some of the signal. A good way to think about it is just use a line of sight. From whatever position you can see the furthest in your house, and you can see the most number of different rooms, that's probably a good place to put your router.
首先，將家中的路由器擺在房子中央附近，如此一來，路由器便能以相同強度向四周發送訊號。此外，也要放在空曠的地方。如果擺在衣櫃裡，櫃子的門會吸收並擋掉一部分的訊號。一個好的判斷方法是利用視線。從哪個視角一眼望去能讓你看到最遠、最多房間，可能就是擺放路由器的好位置。
Two: Lift your router off the ground.
第二：讓路由器遠離地面。
You also really want to lift your router up off the ground because the signals can't penetrate some of the materials that make up floors, like metal, or concrete, or cement. And also, the way most routers are designed...they broadcast the waves slightly downwards. So...that way, you're projecting less of it down into your basement for no reason.
將路由器放在離地面有段距離的位置，因為訊號可能無法穿透一些地板材質，像是金屬、鋼筋、水泥。此外，大部分路由器的設計...都會讓電波訊號稍微向下發送。所以...這樣擺，才能減少將 Wi-Fi 訊號無端發送到地下室的情形。
Three: Keep it away from other electronics.
第三：遠離電器產品。
A lot of other electronics can interfere with the router's signal—things like TVs, computers, microwaves, pretty much anything that has a motor inside it. So you want to keep the router away from other electronics.
許多電器產品都會干擾路由器訊號－－像是電視、電腦、微波爐，幾乎所有有馬達的電器都會對路由器造成干擾。因此，記得讓路由器遠離其他電器產品。
Four: Point the antennas in different directions.
第四：將天線指向不同方向。
Most routers have two antennas on them. And, ideally, you could position one of them vertically and one horizontally. Devices work best when their internal antenna is parallel with the router's, and, so, most antennas inside laptops are horizontal. But if you're using a mobile device or a tablet, totally depends on how you're holding it. So, that way, if you have one horizontal and one vertical, you have the highest chance of having a parallel match with antennas.
多數的路由器都有兩根天線。理想上，你可以將一根天線直放、一根橫放。裝置內部的天線與路由器平行時，訊號接收效果會最好，多數筆電的內建天線是橫向的。但如果你使用的是手機或平板，就要看你怎麼拿了。也因此，如果你讓天線一個橫放一個直立，會最有可能讓裝置的天線與路由器的天線平行。
Five: Measure your signal strength.
第五：測量訊號強度。
If you find that your network isn't working well, you can just go around and measure your signal strength. So, there's a lot of different apps that you can download on your phone. You could create a rough map and figure out what you need to do to fix it.
如果你發現網路有點卡卡的，可以在家中走一圈，測一下訊號強度。手機有很多可供下載的應用程式。你可以粗略畫個圖，弄清楚要怎麼做才能排除問題。
