Bluetooth uses the 2.4 gigahertz frequency to communicate with other devices.

蓝牙通过使用 2.4 的频率信号来与其他设备通讯。

A cordless phone is 5.8 gigahertz. This is wi-fi.

无线电话是5.8 这个是无线网络。

6 gigahertz standard, and there's an option to go to 1.8 gigahertz if you want.

标准版是1.6兹，如果你需要的话，也可以选择1.8兹。

For example, your microwave is in this range and has a frequency of 2.45 Gigahertz.

例如，您的微波炉就处于此范围内，频率为 2.45 。

These inverters can operate incredibly quickly and can easily reach the  gigahertz frequency range and higher.

这些逆变器运行速度极快，可以轻松达到甚至更高的频率范围。

Note that, these frequencies are more commonly referred to as having a 2.4 to 2.4835 Gigahertz frequency band-width or range.

请注意，这些频率通常被称为具有 2.4 至 2.4835 的频带宽度或范围。

Well, as mentioned earlier, a 12 Gigahertz signal is  applied to the copper feed wire.

嗯，正如前面提到的，12 的信号被施加到铜馈线上。

The bottom is  used to transmit at 13 Gigahertz while the top to receive at 11.7 Gigahertz.

底部用于以 13 发送，顶部用于以 11.7 接收。

One point of interest is that Bluetooth's frequency range of 2.4 Gigahertz to 2.4835 Gigahertz is shared by other industrial and medical devices.

值得关注的一点是，蓝牙的 2.4 至 2.4835 的频率范围与其他工业和医疗设备共享。

Sales Clerk: Well, this desktop over here is our latest model. It has a four gigahertz processor with sixteen gigabytes in RAM and a hard disk with one terabyte.

嗯，这边这台台式机是最新款。它有四个处理器，16G的内存，以及一个1TB的硬盘。

In this microchip, called a front-end  module, we switch the antenna from transmit to receive and turn off the 12 Gigahertz signal.

在这个称为前端模块的微芯片中，我们将天线从发射切换到接收， 并关闭 12 信号。

Instead, 12 teams around the world will set up radio telescopes calibrated to the same frequency -- 230 gigahertz -- all pointed at our supermassive black hole neighbor, Sagittarius A.

相反，世界各地的 12 个团队将架设校准到相同频率（230 ）的射电望远镜，全部瞄准我们的超大质量黑洞邻居人马座 A。

However, since we want to get, for example, a 2.4 gigahertz signal, which is 150 times  that of the 16-megahertz crystal oscillator, we add a frequency divider into the feedback  loop.

但是，由于我们想要获得 2.4 的信号， 它是 16 晶体振荡器的 150 倍，因此我们在反馈环路中添加了一个分频器。

Let's move on and see how smartphones and  computers generate a clock between 1 to 5 gigahertz which is 30 to 150 thousand times  faster than a single oscillation of this quartz crystal tuning fork.

让我们继续看看智能手机和计算机如何产生 1 到 5 之间的时钟，这个时钟比这个石英晶体音叉的单次振荡快 3 万到 15 万倍。

As a quick refresher from before, here's  an array of 1280 antennas and we fed them all with the same 12 Gigahertz signal in order to  create a laser-like beam propagating perpendicular to Dishy.

作为之前的快速复习, 这里有一个由 1280 个天线组成的阵列, 我们给它们都输入了相同的 12 信号, 以便创建一个垂直于 Dishy 的激光状光束。

In order to explore how a gigahertz  technological heartbeat is generated, let's open a wall clock, see how it works, and  then see how the same technology is used to produce your desktop computer's gigahertz  clock signal.

为了探索技术心跳是如何产生的，让我们打开一个挂钟， 看看它是如何工作的，然后看看如何使用相同的技术来产生台式计算机的时钟信号。