topblog Ivoire blogs

21/02/2013

Which 4G Modem is Good for TDD network?

More and more 4G networks are launched to commercial as time being, many users want to have their own mobile gadgets to experience faster surfing speed. However, there are so many 4G modems on the market now, which one is better? It's a good question. First, we should know some knowledge about 4G Network. LTE and WiMAX are two most popular 4G Network. Since LTE dominates the 4G trend. Today, we would introduce 4G modem for LTE network.  

 

As the most popular 4G network, LTE uses TDD and FDD technologies to transmit the data. Subsequently, there are 4G TDD modemand 4G FDD modem. They both have special advantages and weakness. This is not our topic today. Today we talk about the 4G modem for TDD network, i.e. 4G TDD Modems.  

 

TDD Frequencies Band & Spectrum

LTE BAND NUMBER    ALLOCATION (MHz)      Wideth of band(MHz)

33                                 1900 - 1920                              20

34                                 2010 - 2025                              15

35                                 1850 - 1910                              60

36                                 1930 - 1990                              60

37                                 1910 - 1930                              20

38                                  2570 - 2620                             50

39                                 1880 - 1920                             40

40                                 2300 - 2400                             100

41                                 2496 - 2690                             194

42                                 3400 - 3600                             200

43                                 3600 - 3800                              200

 

Below are the top TDD Modems that are good for 4G TDD networks:  

 

4G modems for band 38(2600MHz):

  1. Asiatelco ALT-C180 .
  2. Asiatelco ALT-C186
  3. Asiatelco ALT-C187
  4. Huawei E392-92
  5. ZTE MF820S2
  6. ZTE MF820T
  7. ZTE MF880
  8. HUAWEI E392u-21

 

4G modems for band 40(2300MHz): 

  1. Asiatelco ALT-C160,
  2. Huawei E392-92,
  3. ZTE MF820S2 .
  4. ZTE MF880
  5. ZTE MF820T

 So if you are hesitate on which TDD Modem to choose/buy, hope above information would help you make the decision. But since the TDD modems for rest bands are very few, we will make a summary next time about 4G LTE dongles.  

10/02/2013

What’s the difference Between ZTE MF820S2 and ZTE MF820T?

As one of the LTE vendors over the world, ZTE had released many 4G USB Modems for operators all over the world. Most of them have been presented to the public with the commercial LTE systems.  

 

We found there are two similar models: ZTE MF820S2 and ZTE MF820T. Today, we will introduce what’d the difference between the two LTE USB Modems.    

 

ZTE MF820T is a 4G LTE TDD Modem for 2300/2600Mhz with download speed up to 100Mbps and upload speed to 17Mbps. The bandwidth is 10MHz and 20MHz.  

 

ZTE MF820S2 is greater than MF820T, it can work not only on LTE TDD 1900/2300/2600 MHz, but also on FDD network (band 2600MHz). Under TD-LTE network, the peak speed is almost the same as MF820T, but under FDD network, the peak speed could reach 100Mbps while upload speed could reach 50Mbps.  

 

What’s more, the 3G TD-SCDMA and WCDMA networks are both available for ZTE MF820S2. This feature makes it more powerful than MF820T.   Above are the key difference between ZTE MF820S2 and ZTE MF820T. If you want to buy any of them, welcome to check www.4gltemall.com .

03/02/2013

What’s the difference between HUAWEI E5331 and HUAWEI E5151?

Following the most popular pocket WiFi Huawei E5331, Huawei E5151 attracts the user's eyes due to the Ethernet port and 3G functions.  

 

 

Huawei E5331 mobile WiFi is the most cost-effective mobile hotspot till now. With only one button operation and cool design, it's easy to use and take. What's important, Huawei E5331 is appropriate for most users who know few about network settings. When you use it, just one power button, it would auto connects the network, no setting is needed. That' why Huawei E5331 is the most popular mobile WiFi in 2012.  

   

 

Huawei E5151 Mobile 3G and Ethernet Hotspot is new design with Ethernet port. The operations of the two models are almost same. With one button, users could easily power on or offer this device. And if users try to connect through 3G via SIM card, Huawei E5151 could also automatically detect the SIM and connect to internet. In this case, Huawei E5151 looks like E5331.  

 

The difference is on the Ethernet settings. First, the management page web address has changed to 192.168.8.1 while Huawei E5331 is 192.168.0.1 .    

 

If you had used stationary router and set up a router connection, it would be much easier to setup Huawei E5151. You just need to follow the quick setup guide and enter the information needed, then the E5151 will get connected for you to surf. Here you can check how to set up Huawei E5151.      

 

In conclusion, Huawei E5151 is a enhanced E5331 mobile wifi with Ethernet connection function which need configuration. Other features are almost same.

 

Since then, Huawei E5151 is more powerful than E5331. And Huawei E5331 is a good partner for businessmen who usually go abroad for trip. And it's good for tourists. What's more, it's also good for home, in home, it could work like a ADSL router, when take out, it then works as mobile WiFi hotspot.   If you like Huawei E5151, welcome to order from www.4gltemall.com