Do you usually travel outdoor, or aboard? Do you worry about missing emails due to network on business trip? Or supposing you were an assistant and your boss have a schedule to travel next month, what do you need to prepare to make sure there's continuous network support? Actually, it depends, if a SIM card available for roaming, all the above problems would be easy to overcome. Besides the appearance requirement of cute, small and easy to take, it would be also important to have rechargeable battery and the battery could be taken out for change (Because it may not be that convenient to charge a battery).
Except for this, there are more details for consideration.Firstly, it's necessary to confirm how many users would share the network. If for multiple users (more than 2), it's would be good to have one Mobile Wi-Fi Hotspot (also named Mobile Wi-Fi Pocket), because a mobile hotspot usually support at least 5 users to access internet. And you'd better consider the potential users in case new terminal needs. But if for only one user, one USB modem is OK to surf internet. Someone may ask, may I have one USB modem for single and then use USB modem with a modem base to support more people by Wi-Fi? It's really good question! Sometimes, it costs less to have one USB Modem and one modem base that is compatible with the modem and could change 3G signal to Wi-Fi. A mobile Wi-Fi hotspot is usually much more expensive than a USB modem (normal one) and modem base. But it's obviously that mobile hotspot bring more convenience.
The future trend of development is all-in-one, which means one wireless 3G router/ pocket hotspot contains functions of USB Modem, Wi-Fi.After confirming the network sharer, it would be easy and necessary to determine to get a USB modem or a mobile Wi-Fi hotspot. Supposing you want to buy a mobile hotspot, now it's time to consider the features of the hotspot. In the market, it's very common that the product support WCDMA 3G network, however, the bands differs. Some support double bands (900/2100 MHz), which is more popular in Europe, while other support tri-bands (850/1900/2100Mhz) that is used more in America. If you ask whether there is one model that could support all the four bands (850/900/1900/2100 MHz), the answer is sure. But the qual-bands coverage means high cost, so this kind of router may cost you more, concerning this, it may not be a good option for most consumers. And there are also routers supporting CDMA EVDO (800/2100 MHz).
So the main point is to check the network bands and then move up. All the products support download and upload link, then they should have peak download and upload speed. The common speed is 3.6Mbps, 7.2Mbps currently, and 21.6Mbps Mobile Hotspot is also available now. It's said 42Mbps would be soon on the market. The speeds are all theoretical speed, which means the speed only appears in laboratory environment. In real life, the network status is not as good as laboratory, and most of time, the speed couldn't reach up to peak. Or if the signal is weak in your area, it would be necessary for the device to have external antenna to enhance connection speed. In this case, you should also take the network status into consideration. The above three points are the keys you should concern before make decision. If you need other functions, such as Micro SD card, encryption, you need to check details of the model when buying. As the feedback of the market, Huawei E5 series, Novatel Wireless MiFi series and Bandrich mobile hotspot are popular models. This is just for your reference.
access point vs router
Niciun comentariu:
Trimiteți un comentariu