What Is Bsnl Evdo ?

  • EV-DO - Evolution Data Optimized
  • Personal broadband wireless service for a wide range of customers, from business people to students
  • Always on - - similar to DSL (wherever DO capability is available)
  • Rides on CDMA signal- 1x data capability available everywhere CDMA voice service available
  • Up to 10 times the peak data rate of the next best public wireless solution - 500 to 1,000 Kbps average(kilobits per second) ≈ comparable to DSL speeds
  • Allows the user to be “connected” wherever they are – not only for email, but for downloads, large files, photos, spreadsheets, etc.
  • Users can work on a large variety of applications, including the MS Office Suite and others, so they can do business anywhere! Access mission-critical documents and information wherever you are.
  • Available within the customer’s wireless network
  • Gives “plug and play” of business functions, games and Internet access anywhere!
  • Customer voice and data experience should become seamless as ACS’ network expands throughout Alaska
  • Advantages over WiFi:
    • Always on – with seamless roaming!
    • Signal can travel on same cell sites as cell phones
    • No 300-ft range from the cell tower or “hot spot”
    • Customers can access their corporate VPN (virtual private network) anywhere they can get a cellular signal via a secure, encrypted signal
    • Can download and run video clips in real time
    • Can provide service to customers outside of cable-modem or DSL areas
  • Relatively low cost with high capacity - allows rich web browsing and application usage
  • 1xRTT 50Kbps - 100Kbps Upload and Download, bursts to 144Kbps.
  • EVDO Rev 0 400kbps-700kbps Download, bursts up to 2.0Mbps, 50kbps-100kbps Upload Speed, bursts to 144Kbps.
  • EVDO Rev A 500Kbps-1,000Kbps Download, bursts to 3.0Mbps, 300Kbps-400Kbps Upload Speed, bursts to 1.8Mbps.


  • How fast is Bsnl EVDO ?
Your signal strength determines how fast EVDO will be. Like your cell phone, you can have from zero bars of service (no service at all) to 4 bars (excellent, zippy service). Here is a speed test done while having 4 bars. The location was Schaumburg, IL



An antenna can greatly improve your signal strength, and thus your speed. Without moving, we plugged in the Booster Antenna and saw a improvement in the upload and download speed:


How does Bsnl EVDO compare to other 3G Technologies?

Peak Data Rate by Technology:
CDMA Rev A 3,000 kpbs
CDMA 2000-1x EVDO 2,400 kbps
W-CDMA 2,000 kbps
EDGE 384 kbps
CDMA 2000-1x 144 kbps
GPRS 115 kbps
GSM 14.4 kbps


1xRTT (Verizon's NationalAccess)

1xRTT has been out a lot longer than EVDO and is available (almost) wherever cell phone coverage is for Verizon or Sprint. 1xRTT has a maximum of 144K upload and download, but the typical speeds are 50K - 80K. When EVDO is not available, your EVDO card or phone will automatically drop down to 1XRTT. Recently I was in the middle of Illinois (farm land), going 70mph in my car, and did a benchmark test to see how the 1xRTT held up. The test confirmed that I had 94K download speeds (see below), which is actually not too bad for email or web browsing. So, even though EVDO may not yet be available everywhere you want to use it, 1xRTT probably is.