Mailing List os2-wireless_users@2rosenthals.com Archived Message #4288

From:	Lewis G Rosenthal <os2-wireless_users@2rosenthals.com>	Full Headers Undecoded message
Sender:	os2-wireless_users-owner <os2-wireless_users-owner@2rosenthals.com>
Subject:	[OS2Wireless] NetGear MA311
Date:	Mon, 01 Sep 2003 20:38:06 -0400
To:	os2-wireless_users@2rosenthals.com

Some additional thoughts... Ray Hyder wrote: I realize the IBM driver was designed to run on a ThinkPad but it does recognize the MA311 and works okay as far as I can see. It's all a matter of chipsets... It is a Prism 2.5 chipset. Sorry, I should have said "firmware." Obviously, it would be a Prism chipset, like the IBM. :-) There's no universal yardstick. You could try using a parabolic reflector to increase gain at either (or both) end(s) of the connection. Lewis, that's true but parabolic antennas are really expensive I wasn't referring to a parabolic antenna, merely a reflector. You could make one yourself by cutting a coffee can (ain't this stuff fun?). For some nice ideas, check out http://osiris.urbanna.net/antenna_designs/projects/template. and for less money I could simply dig a trench between the two buildings and drop in a Cat 5 cable and run at 100 Mbps. It would be less than half the price and 10 times the speed... Why not? Don't need the speed for the application I have and I'm now fascinated with WiFi... :-) I'm not looking to increase bandwidth (you'd need 802.11a or g, at this point), just try to make up the signal loss for you. I have a 5db gain omni-directional antenna on order for the MA311. Will that help? Probably. Also try adjusting the placement of the antenna/AP. It's amazing how even a few inches can improve transmission. Also, try adjusting the relative positions of the antennae at the AP (like TV rabbit ears). I've done that so many times I'm worried about wearing out the antennae! Sounds like a reflector (or two) could be just what the doctor ordered! Stability... With all of the above considered, the MA311 somehow decides, after about an hour, that it is time to quit work and it goes "unavailable". Nothing will bring it back short of a reboot. Please! What am I missing here? Hehehe... Welcome to the brave new world of Wi-Fi power management (or mismanagement, as the case may be). It sounds like the card's power management functions are being enabled, and unfortunately, Wi-Fi cards of today's vintage(!) are notorious for being unpredictable when power management is enabled. As there are no standards for power management Lewis, it turns out not to be a power management problem. For some reason the MA311 likes to receive data but when it has to transmit data it falls into an unrecoverable coma... Hmmm... Jens may have hit on it with his mention of firmware. Sounds like a bug, then. Lewis, thanks for your input! - ray No problem! Oh, and remember, dumb looks are always free around here, too. (They just don't translate well to typing!) -- Lewis --------------------------------------------------------------------- Lewis G Rosenthal, CNA Rosenthal & Rosenthal : Accountants / Network Consultants New York / Northern Virginia : www.2rosenthals.com Novell Users International : www.whytheylie.com OS/2's new face is eComStation : www.ecomstation.com --------------------------------------------------------------------- This OS/2 system (Apollo) uptime is 0 days 00:20 hours and 19 seconds =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= To unsubscribe from this list, send a message to steward@2rosenthals.com with the command "unsubscribe os2-wireless_users" in the body (omit the quotes). For help with other commands, send a message to steward@2rosenthals.com with the command "help" in the body (omit the quotes). =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

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