Huawei E398 is a LTE 4G USB modem introduced in WMC 2011 - Barcelona, it works and supports LTE network and also GSM-EDGE and 3G HSDPA HSPA+at LTE 800 Mhz, 1.8 GHz and 2.6 GHz Mhz frequency.
Huawei E398 LTE Modem Specifications:
Network :
LTE on 800/1800/2600MHz
2 × 2 MIMO, LTE, category 3
UMTS with HSDPA, HSUPA, HSPA
2G GSM and EDGE support
Chipset : -
Model : USB Stick
Antenna : Internal
MicroSD card slot for up to 32GB
External antenna connector
Huawei E398 LTE modem reportedly used in German LTE based carrier operates LTE 800 Mhz frequency.