Discuss EVDO PCMCIA Cards, ExpressCards, EVDO USB, PDAs, Phones, Coverage and Mobile Broadband Cards.
Discuss Verizon and Sprint Coverage. CradlePoint CTR350, CTR500, PHS300, MBR1000, MBR1200, PHS300. Discuss Improving signal with 3Gstore Antennas and Amplifiers.
|
EVDOforums.com
Discussion forum for EVDO users
|
Our sites Include:
EVDO Info :: EVDO Forums :: EVDO Maps :: EVDO Blog :: 3Gstore.com
To purchase your EVDO Card / Antenna / Amplifier / Router from the EVDO Experts, just contact us!
| View previous topic :: View next topic |
| Author |
Message |
Benjamin Lau
EVDO Newbie
Joined: 12 Jul 2005
Posts: 3
|
 Posted: Tue Jul 12, 2005 4:50 pm Post subject: Sprint Aircard 580 throughput |
 |
|
I recently received a Sprint Aircard 580 from my company. Works pretty good even without EVDO [ hopefully, I will be able to try that in LA soon ].
The card installed itself as a modem instead of a network card under WinXP. After a successful connection, WinXP displays a message stating that I got a good connection at 115kbps.
If I remember correctly, 115kbps -> 11.5k bytes / sec. So if a modem 115kbps interface, how can I ever get boardband like connection speed?? It seems to me that the maximum throughput for this sprint card [ with the current release of software connection manager ] is about twice the throughput of a 56k modem.
Your comment please? |
|
| Back to top |
|
 |
luitinghin
EVDO Fledgling
Joined: 07 Jul 2005
Posts: 11
|
| Posted: Tue Jul 12, 2005 7:16 pm Post subject: |
|
|
It is right.
You are under 1XRTT area, and that's RTT 's speed. |
|
| Back to top |
|
|
Benjamin Lau
EVDO Newbie
Joined: 12 Jul 2005
Posts: 3
|
| Posted: Wed Jul 13, 2005 12:26 am Post subject: 1xRTT vs EVDO |
|
|
My point is - if the interface is 11.5 k Byte / sec, then my maximum throughput wont be any higher even if I get EVDO....
Unless the connection manager create a LAN/High Speed Internet connection entries, I will not get BoardBand speed.... What am I missing here?
Benjamin  |
|
| Back to top |
|
|
brendanhoar
EVDO Heavy User
Joined: 09 Jun 2005
Posts: 140
|
| Posted: Wed Jul 13, 2005 6:57 am Post subject: Re: 1xRTT vs EVDO |
|
|
| Benjamin Lau wrote: | My point is - if the interface is 11.5 k Byte / sec, then my maximum throughput wont be any higher even if I get EVDO....
Unless the connection manager create a LAN/High Speed Internet connection entries, I will not get BoardBand speed.... What am I missing here?
Benjamin |
Well, remember, it's a virtual serial port running over USB, not a real serial port, so having a serial port speed is required by protocol, and that (115kbps) is one of the two highest "normally expected" serial port speeds for a modem to report.
The reported serial port speed that IBM Access Connections sees for my v620 card is reported as twice that (230kbps), but speed tests prove I can get much more thruput in the download direction.
I suspect the speeds returned via the "CONNECT 115360" (or similar) are entirely about making sure generic "AT command set modem" drivers can deal with the cards as necessary.
-brendan |
|
| Back to top |
|
|
Benjamin Lau
EVDO Newbie
Joined: 12 Jul 2005
Posts: 3
|
| Posted: Wed Jul 13, 2005 10:33 am Post subject: |
|
|
Virtual USB port --- that make sense. Thanks for the tips. I will wait for the EVDO service fro sprint and run a bandwidth test.
Benjamin |
|
| Back to top |
|
|
Zorog
EVDO Heavy User
Joined: 08 Jul 2005
Posts: 135
|
| Posted: Wed Jul 13, 2005 11:10 am Post subject: |
|
|
Michael is correct - the "port speed" parameter as indicated by Microsoft's Dial Up Networking dialog box is completely ignored by the USB drivers.
I have tested a number of devices (both commercially available and unavailable), and the EVDO throughput at my location is consistant around 2.1M peak (1.5 average) no matter how you set the port speed.
(Before you drool - I have a controlled RF environment...  lol ) |
|
| Back to top |
|
|
brendanhoar
EVDO Heavy User
Joined: 09 Jun 2005
Posts: 140
|
| Posted: Thu Jul 14, 2005 2:39 pm Post subject: |
|
|
Michael? I get no respect, I tell ya!
-brendan |
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
|
Buy from the 3G Experts @ 3Gstore.com
CradlePoint MBR1200 $269.99
Sprint MiFi $59.99
CTR500 $179.99
MBR1000 $189.99
CTR350 $89.99
PHS300 $159.99
Sprint 598U - Free
Sprint Rev A ExpressCard: Merlin EX720 - Free
Purchase an EVDO Booster Antenna
Purchase an EVDO Amplifier
Your Mac EVDO Experts
|
|
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
