1 00:00:00,450 --> 00:00:06,450 Now, before moving ahead with the contention methods, you first need to understand what a wireless 2 00:00:06,450 --> 00:00:09,510 range extender is, what can you guess? 3 00:00:09,540 --> 00:00:12,210 I'll give you five seconds to answer or think. 4 00:00:12,870 --> 00:00:14,180 Think from the name. 5 00:00:14,190 --> 00:00:17,130 What is a wireless range extender? 6 00:00:18,060 --> 00:00:18,450 Yeah. 7 00:00:18,450 --> 00:00:24,550 So if we guessed that this device is used to extend the range of the device, then you're probably right. 8 00:00:25,140 --> 00:00:32,040 In some cases you need the villain to extend further than the technology in use is designed to deliver. 9 00:00:32,340 --> 00:00:35,730 In that case, we can deploy what is called a range extender. 10 00:00:36,810 --> 00:00:44,130 Now these are radios and antennas that operate in the same frequency or channel and receive the signal 11 00:00:44,130 --> 00:00:50,400 as a station word and then transmit it in the direction you desire your clients that are out of the 12 00:00:50,400 --> 00:00:52,040 reach of the original access point. 13 00:00:52,500 --> 00:00:56,550 For example, as you can see on the screen here, just it. 14 00:00:57,630 --> 00:00:57,990 Yeah. 15 00:00:58,260 --> 00:01:04,770 So you can see in the square this this person is here is use is using an Internet network, but this 16 00:01:04,770 --> 00:01:06,510 guy wants to use the network. 17 00:01:06,840 --> 00:01:12,430 But the range of this access point is only still here. 18 00:01:12,870 --> 00:01:14,460 It does not extend for that. 19 00:01:14,460 --> 00:01:16,180 The range is here blocking here. 20 00:01:16,680 --> 00:01:18,990 So what to do now? 21 00:01:18,990 --> 00:01:23,580 They have installed a wireless range extender here. 22 00:01:23,580 --> 00:01:26,020 You can see I've marked it with green color. 23 00:01:26,040 --> 00:01:26,390 Yes. 24 00:01:26,760 --> 00:01:36,180 So now what this wireless range extender does is captures this frequency and then it's in all the parameter 25 00:01:36,180 --> 00:01:36,880 available. 26 00:01:37,500 --> 00:01:45,580 So now this person here can access the Wi-Fi or the Internet of this room. 27 00:01:46,140 --> 00:01:53,370 So in short, wireless range extenders are basically used to extend the range of the original access 28 00:01:53,370 --> 00:02:00,900 point so that the anyone who's out of range of the original access point can access the Internet without 29 00:02:00,900 --> 00:02:01,620 any issues. 30 00:02:02,810 --> 00:02:06,680 This is all for a range extender in the next lecture. 31 00:02:06,710 --> 00:02:14,090 We'll see what is meant by a convention method and how introduction to to mean convention methods that 32 00:02:14,090 --> 00:02:16,790 you must understand in computer networking.