Greetings to all !
This is my first thread. So, here I go . . . I have been using BSNl EVDO in Jamshedpur for the past 2 months and my experience is good.
While purchasing the Prithvi UE-100, it appeared to me as cheap okay-shokay modem. But, now I can say it's a Good modem, not Great though and worth it's price. BSNL provides 1 year warranty on Prithvi UE-100.
The problems I faced ( All were temporary ) :
a) Random dis-connect and re-connect from laptop (NOT internet dis-connect).
Reason behind and Solution : Since, I was using a LONG USB connector, there was a considerable Latency between data travel between modem and laptop causing it to go undetected when the response via LONG Usb connector delayed, making the Laptop think it has been removed !
Also, cheap or worn out USB connectors might create same problem.
Further, the problem may arise because of faulty mother-board ( which is smoothly running the PC) producing in-sufficient voltage on the USB port.
We can use USB connector witha power hub ( though I have not tried it yet)
b ) Speed gradually declined to few kbps (3-20 kbps KiloBIT not BYTE )
Reason and Solution : If you cause shaking or disturb the modem stationary position by moving the laptop or keeping the laptop on bed,sofa etc (then typing causes a bit jerking effect ) then the modem will either recover from signal change or might dip down to nill speed.
Also, I used to keep a copper wire and kept coiling and re-arranging it a lot, around the modem in hunger for more speed. Smtimes, it worked ..n rest of the time speed dipped
It's better to leave the USB stationary after finding a suitable position where signal is good.
c) Modem heating
Reason : When the signal is varying greatly (U might notice frequent changes in Signal bars or flickering on Conncetion manager interface ) or signal is low ( because of Tower) , the modem utilizes more power and thus, heats up.
Otherwise, I have downloaded 10+ Gbs continously a lot and the modem remains moderately warm.
Few observations : When I keep a CD at the EDGE ( on either Lengthy side of modem ) (not completely beneath Modem) speed increases beacause of sgnal enhancement.
Moreover, when I bring my hand in front of the modem same thing happens. but when I keep my head near laptop (thus modem) reverse happens . lol
Also, we can use self made antennas ( check out Youtube using the search keyword - DIY ( do it yourself) or home made modem antennas)
copper wire etc.
So, if you receive good signal ( 3 bars or above ) ( check that while having EVDO demo ) then Prithvi modem is not bad and don't panic or just blame BSNL for any speed/modem related problems before finding the problem from our side.
Else, you can check reviews on Sierra, Huawei, Micromax etc modems on the net.
The above mentioned solutions ( most of it ) I got from International forums related to Modems/ EVDo modems.
Also, anyone from Jamshedpur wondering if BSNL EVDO service is good or not; the service is satisfactory !
BSNL Jamshedpur authorities responds to query and take actions in time . That's a big relief ! So far so good ..cheers !