How to distinguish WiFi transceivers
What is an access point?
Access points can be considered as a Switch / Hub network switch. Still, compared to a conventional switch only equipped with LAN wires, the access point via wireless WiFi connection can transmit download data from wired network to wireless network.
The access point is primarily responsible for connecting wireless devices to the Local Area Network. Compared to other WiFi devices such as modems or routers, the access point does not have IP capability.
What is a WiFi router?
A router, also known as a router or router, is a computer network device that converts packets based on the routing cycle, which often happens on the 3rd floor of the 7-story model called OSI.
However, this concept is relatively vague, more simple, you can understand like this:
A router is a network device that shares the internet with other devices in the same network. A router, simply a router for generating WiFi; a wireless router can use one or more antennae that allow users to adjust the WiFi direction.
The WiFi router is composed WAN port that connects to the internet via an ADSL network or connects to the modem via a cable. There are quite a lot of Ethernet ports (or LAN ports), so that via cable will allow people to Easy to connect with many different devices at the same time.
Each router will receive internet data from a modem and usually have a public IP address to provide to devices on the same LAN.
What is a WiFi modem?
Modem (full name is modulator and demodulator), a device capable of modulating signal waves. The type of modem used today is the coaxial cable modem and ADSL modem.
The modem is a parent device, and the router is a child device, thanks to the modem that the router can connect to the international internet.
Modem-Router (2-in-1 combination)
Modem-Router: A versatile device that can combine the modem and the router, which is also the function of WiFi generation and data sharing to all local computers. This device usually has a very high price, is very convenient to use, and is only suitable for families with well-off financial conditions.
So when should I use Access Point, Router, Modem, and Modem-Router?
The above devices will be arranged in the order that will be Access Point> Router> Modem> Modem-Router. That is the order from low to high.
Access Point should be used when you only need to connect the computers without using the internet.
Should use a modem when you need an internet connection.
Should use the router when you want to increase WiFi coverage and increase connectivity between wireless devices.
Use a modem-router when you want to save money and save time.
Below we will give criteria to help you choose to buy a good WiFi router device suitable to the needs and economic conditions of the family.
Criteria for evaluating which WiFi Router is the strongest broadcast
A. Distinguishing band and dual-band
Band a term you will often encounter when choosing to buy a WiFi router, so what is the band?
That’s the frequency at which the wireless operates; the two frequencies you’ll encounter are 2.4GHz or 5GHz. In particular, the 2.4GHz band is the most popular because its broadcast range is much wider than the 5GHz band.
Today, most routers use WiFi N band 2.4GHz speed 300Mbps; some high-end lines allow upgrading to 5GHz band speed up to 450Mbps.
If there are financial conditions, it is better to choose a WiFi router that supports both bands / 1 network; this WiFi router will automatically use 5GHz when in close range and automatically lower to 2.4GHz when long-range operation.
B. Support standards
However, you only need to know that the common WiFi standard that today’s WiFi devices are using is the N standard with the maximum speed of about 300Mbps, allowing the upgrade to 400Mbps or higher is 600Mbps.
Some argue that WiFi routers will be difficult to adapt to Apple’s Macbook, but the manufacturers of WiFi routers have almost overcome these problems. Most routers use Broadcom’s chipset, so it will be compatible and work stable with all devices.
D. Ability/range of broadcast
To increase the strength of their products, manufacturers have integrated an external antenna. However, to not be disappointed when choosing to buy a WiFi router, you need to distinguish two concepts: throughput and bandwidth clearly.
Throughput is an indicator showing the router’s traffic speed, the indicators recorded on the product are 300Mbps or 450Mbps. In contrast, Bandwidth is the download and upload speed that the manufacturer will equip you.
Another thing is the real speed of the product will often be much lower than the manufacturer’s ad because the process of using the device will be affected by many external factors.
In addition, the broadcast range of the WiFi router is also quite important. If used in the home, choose the WiFi router capable of broadcasting 50m indoors and 500m outdoors.
E. Features, utilities supported
With the WiFi network, we need privacy so that the security feature will help the family’s network against abnormal intruders from outside, such as viruses or firewalls.
If a few years ago, the WiFi routers usually only use a security code is WEP, now famous vendors have upgraded their devices with more security codes like WPA or WPA2 …