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Comparison Huawei E5576-320 vs Huawei E5576-322

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Huawei E5576-320
Huawei E5576-322
Huawei E5576-320Huawei E5576-322
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Main
Connect up to 16 devices. Wi-Fi repeater function. Compact dimensions.
2 connectors for connecting a MIMO antenna.
Device typeportable routerportable router
Wi-Fi
Wi-Fi 3 (802.11g)
Wi-Fi 4 (802.11n)
Wi-Fi 3 (802.11g)
Wi-Fi 4 (802.11n)
Connected devices, up to1616
Effective range10 m10 m
Connection
Communication generation
2G
3G
4G (LTE)
2G
3G
4G (LTE)
4G (LTE)Cat.4 (150/50 Mbps)Cat.4 (150/50 Mbps)
Transmission technology
GPRS
EDGE
W-CDMA
HSUPA
HSDPA
HSPA+
LTE
GPRS
EDGE
W-CDMA
HSUPA
HSDPA
HSPA+
LTE
Ports
microUSB
microUSB
Features
External antenna connector
MIMO antenna connection
SIM card slot
General
Built-in battery
Battery capacity1500 mAh1500 mAh
Operating time (internet browsing)6 h
Operating time (standby)350 h
Dimensions100x58x14 mm
Weight71 g95 g
Added to E-Catalogjanuary 2020april 2016

External antenna connector

The presence of a connector for an external removable antenna in the modem design. The meaning of all external antennas is described above; here we note that the connector makes it possible to use rather large antennas with the modem, which significantly exceed the capabilities of stock antennas (both internal and external non-removable ones). In addition, the user can choose the antenna at his discretion.

MIMO antenna connection

The ability to connect the MIMO antenna (the antenna itself, usually, must be purchased separately).

MIMO technology is used in Wi-Fi communications, as well as in 4G LTE networks (starting with Cat.2). Its general principle is to split the transmitted signal into several transmitting and receiving antennas; at the same time, each of the transmitting antennas broadcasts a signal to all receiving antennas at once (or at least to several of them). This format of operation allows more efficient use of the frequency range, increases the actual data transfer rate, and also increases resistance to interference. But antennas for MIMO are rather bulky, in the case of modems it is difficult to make them built-in; and such feature is required not so often. Therefore, separate external antennas are used to work with this technology.

Note that even in portable Wi-Fi hotspots (see "Type"), this feature is used exclusively for 4G/LTE; Wi-Fi connection is provided by built-in antennas.

Operating time (internet browsing)

The maximum operating time of the modem with battery power (see "Power") on a single charge in Internet browsing mode. Such power is typical for Wi-Fi routers, therefore, usually, Internet browsing is supposed to provide access to the World Wide Web for an external Wi-Fi device.

This spec is the main indicator of battery life for any battery-powered modem, because it describes the time of using it for its main purpose without recharging. At the same time, you should know that this indicator is measured under certain "perfect" conditions; the actual operating time depends on a number of factors, including the intensity of browsing, the amount of data transferred, the number of connected devices and the distance to them, the cellular network signal strength, etc. Therefore, in fact, the battery life of the modem may be somewhat lower. Nevertheless, it is quite possible to compare different models with each other according to the operating time stated in the specs.

Operating time (standby)

The maximum time the modem can operate on battery power (see "Power") in standby mode on a single battery charge.

This mode can be described as the standby mode. It assumes that the device is turned on, its operating circuits are powered and ready to respond to an incoming signal or user command at any time, but no data exchange occurs and no features work. This indicator is not as important as the Internet browsing time (see above), but it is also of practical importance and allows you to evaluate the battery life of the device — after all, during breaks between communication sessions, the modem is in standby mode.
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