Archive for Wireless/GPS/GSM Devices

Understanding the differences between Wifi and Wimax

Wifi and Wimax are the two most known technologies today.

Wi-Fi is a trademark of the Wi-Fi Alliance for certified products based on the IEEE 802.11 standards. This certification warrants interoperability between different wireless devices. The term Wi-Fi is often used by the public as a synonym for wireless LAN (WLAN); but not every wireless LAN product has a Wi-Fi certification, which may be because of certification costs that must be paid for each certified device type. Wi-Fi is supported by most personal computer operating systems, many game consoles, laptops, smartphones, printers, and other peripherals.

WiMAX, meaning Worldwide Interoperability for Microwave Access, is a telecommunications technology that provides wireless transmission of data using a variety of transmission modes, from point-to-multipoint links to portable and fully mobile internet access. The technology provides up to 3 Mbit/s broadband speed without the need for cables. The technology is based on the IEEE 802.16 standard (also called Broadband Wireless Access). The name “WiMAX” was created by the WiMAX Forum, which was formed in June 2001 to promote conformity and interoperability of the standard. The forum describes WiMAX as “a standards-based technology enabling the delivery of last mile wireless broadband access as an alternative to cable and DSL”.

Wimax Features

  • Long Range, High Data Rate
  • Less Susceptible to interference
  • Very viable mobile alternative to DSL and Cable
  • Subscribers receive wirelss broadband data delivery to the home
  • Plug and Play installation
Wifi and Wimax Comparison
wifi-wimax

wifi-wimax

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G-388U USB GPRS Modem

Product Description

  • Based on Siemens module MC388
  • Dual-band 900/1800MHZ
  • Wireless access to internet
  • Standard USB interface
  • 3V movable SIM slot
  • Maximum transmitting speed 115KBps.
  • Double tone multi- frequency function (DTMF).
  • Send and receive SMS, data, e-mail and voice.
  • Always on-line.
  • Input voltage: 5V
  • Standby current: 5mA
  • Working current: 100-140mA
  • Foldable and turnable antenna with high sensitivity
  • Working temperature:  -20 C  to +70 C
  • Storage temperature:  -40 C to +80 C
  • Size: 82*43.8*18mm
  • Weight: 18g
  • Accessories: USB data cable, antenna, earphone, Software CD

Applications

  • Remote monitoring
  • Wireless Internet access
  • Wireless POS
  • Vehicle navigation
  • Internet Browsing

For more enquiry on the product contact here – chipsilicon.com

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Teltonica Quad Band Edge USB Modem – Maintain your top mobility easy accessing to the internet no matter you are in a train, bus, or in a car

The teltonica quad band edge class 12 modem allows you to stay connected to the internet anytime no matter you are in a train, bus, or in a car. Yes, stay online now and -

  • Manage your business in real-time
  • Send and receive e-mails
  • Browse WEB database
  • Access VPN
  • Send SMS messages from your PC
  • Use Voice feature!

Teltonika ModemUSB/E12 connects to the PC through USB 2.0 (Universal Serial Bus) interface, which is very speedy and convenient. The modem takes the DC power directly from the USB interface, so no charging device or external AC/DC adapter is required.

You will achieve much higher perfomance with Teltonika ModemUSB/E12 than with ordinary dial-up modem.

For more information the product, please visit - Teltonica Quad Edge Modem

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GGM309U USB GPS Receiver for Car Navigation, Marine Navigation, Mapping, Surveying, Security, Agriculture and so on…

GGM309U GPS Receiver provides you various applications such as car navigation, marine navigation, mapping, surveying, security, agriculture and so on. It communicates with device (such as PocketPC or notebook) via compatible dual-channel through RS-232 or TTL and saves satellite data by built–in backup memory. Low power consumption technology enables GGM309 and your device to save more operating power. Furthermore, GGM309R can track up to 20 satellites at a time, re-acquire satellite signals in 100ms and update position data every second. Trickle-Power allows the unit to operate a fraction of the time, and Push-to-Fix permits user to have a quicker position fix even though the receiver stays off.

For more enquiry on this product, please visit - GGM309U USB GPS RECEIVER

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IMFree Wireless Instant Messenger

The MX240a IMfree Wireless Instant Messenger form Motorola is a short range, portable device that allows you to simultaneously send and receive instant messages (IMs) and participate in chat sessions over net, both in and around your home, from a single PC. To use MX240a wireless messenger, you must have a personal computer connected to the internet. Plus you must also have an account in AOL ( http://www.aim.com)

System Requirements

Windows 98SE, Windows ME, Windows 2000Desktop, or Windows XP Home and Professional
Pentium 266 MHz processor or equivalent
64 Megabytes of memory
20 Megabytes of available disk space
Powered USB port (version 1.1 or later)
Modem or broadband Internet connection 10

More information on this product can be found here – IMFree Wireless Instant Messenger

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