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Message-ID: <1EvHEA-2ADEzA0@fwd34.sul.t-online.de>
Date:  Sat, 07 Jan 2006 17:45:13 +0100 (MEZ)
Sender: os2-wireless_users-owner <os2-wireless_users-owner@2rosenthals.com>
Reply-To: os2-wireless_users@2rosenthals.com
From:  "Robert Lalla" <os2-wireless_users@2rosenthals.com>
To:  "os2-wireless_users@2rosenthals.com" <os2-wireless_users@2rosenthals.com>
Subject: [OS2Wireless] signal strength

On Fri, 06 Jan 2006 23:48:25 +0100, Christian Langanke wrote:

>the driver should report the signal strength within a certain value 
>range, according to the NDIS interface specs, from -200 to -10. The 
>genmac.dim converts that to a range of 0 to 190 and then to a range from 
>0 to 60, matching the DIM spec of XWLAN (taken from the genprism.dim),. 
>This is calculated to a percentage where 60 matches 100%.
>
>Since AFAIK the OID clal for the signal strength is returned by the 
>driver directly. there cannot be a genmac error. My method of 
>calculating may be wrong at some point, but I don't know where. If 
>somebody knows a better scheme please tell me.

The GenMac driver with Atheros card is apparently reporting
dBm values (actual receive power) on the signal strength (Rssi) 
parameter. I checked this with GenMac's scan.exe utility. 
Connection loss limit is around -95, maximum signal strength 
at a few cm distance from the AP is around -40.




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