... btw: there is no problem ... I am just curious ... and inquiring
if someone can explain the following behavior ...
... my DIR-655 wireless-router reports connection " RATE"(s) (i.e. "STATUS - WIRELESS" )
that seem inconsistant with my understanding of the 802.11n, wifi data-rates : -- see tables published eslewhere ---> [ ...search ... 1) wiki : mcs data rates or 2) google : mcsindex ]
The Wireless Configuration for DIR-655 router & DAP-1522 bridge (client) is:
The router reports signal strength from client is 100%, which is v. good.
My confusion arises from the "RATE: i.e. client connection speeds" as reported by the router.
These rate reported most is
241Mbps, but is sometimes
214Mbps, or else it is reported as
268Mbps .
... FIRST curiousity ...
The rates reported by the DIR-655 do NOT coincide exactly
with the MCS-index/data-rate tables.
---> [ ? 2 spatial-streams ... ? 64-QAM ? ]
reported:214M is similar to 216Mbps (MCS 13 | 800GI)
reported:241M is similar to 243Mbps (MCS 14 | 800GI) or
reported:241M is similar to 240Mbps (MCS 13 | 400GI)
reported:268M is similar to 270Mbps (MCS 15 | 800GI) or
reported:268M is similar to 270Mbps (MCS 14 | 400GI)
? what could be the reason for this ~2M discrepancy ?
Is the small discrepancy due to wireless/processing header/overhead,
non-data transmission-rate compensation/correction ...
or is it something more sinister ? lol
... SECOND curiousity ...
With BOTH the DIR-655(router) and the DAP-1522(client) configured for "SHORT GI" ( i.e. 400GI) ...
... why would ANY connection-rate associated with the " 800GI " setting be possible? (refer to above-data as reported in "FIRST curiosity" )
Last edited by OldTechy; 08-04-2012 at 03:20 AM..
Reason: format
DIR-655 reports ' off-table ' connection rate 
Linear Mode
