Huawei E398S-81 4G LTE FDD TDD USB Surfstick Review

Comparing with Huawei E398 other branch models, such as Huawei E398u-1, E398u-18 and E398u-15, Huawei E398s-81 should be a special one, it’s not because Huawei E398s-81 has different appearance as other models, it’s due to Huawei E398s-81 supports the TDD & FDD LTE band simultaneously, which covers the 4G LTE TDD 2300/2600MHz and FDD 2600MHz.

 

 

As the one of the most frequency bands for TDD, band 38 (2600MHz) and band 40 (2300Mhz) are invested by many operators who are planning or already launched TDD networks.

 

 

Today, we get the Huawei E398s-81 4G LTE TDD FDD Surf stick with HUAWEI logo on it. It seems that it’s SIM card free and unlocked to any operators. Usually, if there is an operator’s logo on HUAWEI E398 modem, it may be a locked one, but the modem could be unlocked by some methods.

 

From the appearance, we could see that HUAWEI E398s-81 is just like other E398 branch models, with the rotatable USB design. There is only HUAWEI 4G on the USB. No other logo was printed on the back.

 

 

As previously mentioned, Huawei E398s-81 could support the LTE bands/Spectrum above: 4G LTE FDD 2600MHz and TDD 2300/2600MHz. This should be the most important difference between HUAWEI E398u-1, E398u-15 and E398u-18.

 

 

With same appearance of E398u-11 and E398u-15, Huawei E398s-81 has two external antenna connectors beside the two sides of Micro SD slot. If user wants to use data card with MIMO technology, HUAWEI E398s-81 is a good option optional. Here now, only few models of 4G LTE USB Surfstick are available on the market for both TDD and FDD networks. HUAWEI E398s-81 should be a good one based on HUAWEI prestige.

 

 

Unlike other E398 Modems, Huawei E398s-81 could not work with 3G UMTS network or 2G GSM/GPRS network. So Huawei E398S-81 could only work on 4G LTE networks. If 4G networks are not available in certain place, HUAWEI E398s-81 can’t work. So users may consider this before they buy it.

 

 

 

As the brother model, Huawei E392 4G FDD TDD multi-mode data card also has one similar model, the model number is Huawei E392u-92. HUAWEI E392u-92 supports 4G TDD 2300/2600 Mhz, but HUAWEI E392u-92 can’t support 4G FDD networks.

 

If you want know more details of them, welcome to buy it from www.4gltemall.com .

 

 

HUAWEI E392u-21 and E392u-92 4G LTE TDD USB Modem

As one of the top telecom equipment supplier, Huawei has been leading the trend of 4G network. To meet the demand for network upgrade, many 4G LTE modems are released with new LTE technology. TDD, as the one of the two most popular LTE technologies, is widely adapted for 4G network in many providers all over the world.

 

 

Huawei E392u-21 and E392u-92 are born to support TDD networks. Even though there are many variants for Huawei E392 or Huawei E397, Huawei E392u-21 and E392u-92 should be the most popular two models, because HUAWEI E392u-21 and E392u-92 both support 4G TDD band 2600Mhz, what’s more, HUAWEI E392u-92 supports TDD 2300MHz. What’s more, HUAWEI E392u-21 also supports 4G FDD 2600MHz.

 

 

Actually, the 4G Spectrum TDD 2300/2600MHz and FDD 2600MHz are the most popular bands which are commonly deployed and launched to commercial. So the difference between the two 4G LTE dongles is the 4G Frequency band supported. Below are the details of 4G Frequency they could support:

 

HUAWEI E392u-92:

4G LTE bands: TDD 2300/2600 Mhz

3G UMTS: 900/2100Mhz

HUAWEI E392u-21:

4G LTE Bands: FDD 2600MHz/ TDD 2600Mhz

3G UMTS: 900/2100Mhz

 

Unlike HUAWEI E392u-21, HUAWEI E392u-92 could only work on 4G LTE TDD network. Since then, HUAWEI E392u-21 may support high link speed than E392u-92. Under FDD network, HUAWEI E392u-21 could reach peak download data rate at 100Mbit/s and upload data rate up to 50Mbps. But the maximum speed for HUAWEI E392u-92 to download is 68Mbps while upload peak speed is 17Mbps. When working on TDD network, HUAWEI E392u-21 could also run at this speed.

 

HUAWEI E392u-92 is somewhat like ZTE MF820T, but it seems HUAWEI E392u-92 is better because E392u-92 works on multi-mode, 3G & 2G network are backward while ZTE MF820T is single mode for 4G LTE TDD 2300/2600MHz. And with external antenna connector, HUAWEI E392u-92 would get high data rate in practical with MIMO antenna.

 

 

With the same compact design, HUAWEI E392u-92 and E392u-12 both have 2 external pigtail connectors. With MIMO technology, the transmission rate for data would improve obviously whenever in laboratory or practical usage.

 

It’s a pity that HUAWEI E392u-21 couldn’t support 2300MHz, which let E392u-92 has its special features. They both work for 4G TDD network and both are good 4G dongles worthy to have if there is 4G TDD network available round you.

 

 

LTE Dongles, CPE and Modules for Band 38(2.5-2.6GHz)

Band 38 is one of the most popular bands for TD-LTE network, the running spectrum is 2570-2620 MHz, usually, people would like to say it band 26000MHz. And it’s 50MHz.

Below are the UE that could work for Band 38(TDD LTE 2600 MHz):

LTE CPE:

1.      Asiatelco ALR-W190, indoor, b38, b40.. 2012.09..

2.      Asiatelco ALR-W191, indoor, b38, ..2012.09..

3.      Nokia Siemens Networks CPE outdoor 7210, 2012.10

4.      Nokia Siemens Networks CPE indoor 7212, 2012.10

5.      Huawei B593s-82 indoor CPE ..2012.06..

6.      Huawei E593u-91, ..2012..

LTE Surfsticks/Modems/Dongles:

1.      Asiatelco ALT-C180 ..2012.09..

2.      Asiatelco ALT-C186 b38 and b41 ..2012.09..

3.      Asiatelco ALT-C187 b38 and b39 ..2012.09..

4.      Huawei E392-92 multiband ..2012.09..

5.      ZTE MF820S2 ..2012.09..

Modules:

  1. ZTE MF291 LTE modul, 2012.10,

Below are the operators worldwide for Band 38 (TDD 2600MHz):

Commercial systems:

1.      Brazil, Sky Brasil Servicos

2.      Japan, Softbank Mobile XGP/LTE

3.      Poland, Aero2

4.      Russia, MTS, 2012.09-.. 25 MHz, 2595-2620 MHz (Moscow and Moscow region only, to launch LTE network before Dec.29, 2013, the concession is valid until Dec.29, 2016)

5.      Saudi Arabia, Mobily

6.      Sweden, 3 Sweden

Planned:

1.      Austria, 3 Austria, tests 2012.09

2.      Austria, A1, from 2010.09.20

3.      Belgium, BUCD, 2012

4.      China, China Mobile, 2012.10

5.      Germany, E Plus, 2012.09

6.      Russia, Megafon, 25 MHz, 2570-2595 MHz (Moscow and Moscow region only)

7.      Spain, COTA, plan commercial launch Nov. 2012