Re: [BP] Wed August 4th Agenda: 802.3ap Channel Model Adhoc Confe rence Call
matlab
-----Original Message-----
From: Justin Gaither [mailto:Justin.Gaither@xilinx.com]
Sent: Tuesday, August 10, 2004 9:42 AM
To: DAmbrosia, John F
Cc: STDS-802-3-BLADE@listserv.ieee.org
Subject: Re: [BP] Wed August 4th Agenda: 802.3ap Channel Model Adhoc Confe
rence Call
John,
what kind of file is that? (.fig?)
Thanks,
justin
DAmbrosia, John F wrote:
> See attached figure
>
>
>
>
>
> -----Original Message-----
> *From:* owner-stds-802-3-blade@LISTSERV.IEEE.ORG
> [mailto:owner-stds-802-3-blade@LISTSERV.IEEE.ORG] *On Behalf Of *Brian
> Brunn
> *Sent:* Monday, August 09, 2004 11:38 AM
> *To:* STDS-802-3-BLADE@LISTSERV.IEEE.ORG
> *Subject:* Re: [BP] Wed August 4th Agenda: 802.3ap Channel Model Adhoc
> Confe rence Call
>
>
>
> Hi John (and anyone else proposing coefficient changes),
>
>
>
> As part of the ongoing discussion can you attach plots of the
> different curves?
>
>
>
> Its hard to appreciate b1=..., b2=... :-)
>
>
>
> Thanks
>
> Brian
>
>
>
>
>
> -----Original Message-----
> *From:* owner-stds-802-3-blade@listserv.ieee.org
> [mailto:owner-stds-802-3-blade@listserv.ieee.org]*On Behalf Of
> *DAmbrosia, John F
> *Sent:* Monday, August 09, 2004 10:42 AM
> *To:* STDS-802-3-BLADE@listserv.ieee.org
> *Subject:* Re: [BP] Wed August 4th Agenda: 802.3ap Channel Model Adhoc
> Confe rence Call
>
> Joel / Steve,
>
> Based on the initial proposal and Steve's proposal, I came up with the
> following coefficients:
>
> b1 = 1.8e-5
>
> b2 = 1.3e-10
>
> b3 = 3.98e-20
>
> b4 = 1.4e-30
>
>
>
> This takes advantage of Steve's proposed curve in the lower frequency
> range, and keeps the loss where Joel's initial proposal is. I will
> spend some time looking at real channel data with these numbers, but
> this model addresses the general concerns that have been expressed.
>
>
>
> John
>
>
>
>
>
> -----Original Message-----
> *From:* owner-stds-802-3-blade@listserv.ieee.org
> [mailto:owner-stds-802-3-blade@listserv.ieee.org] *On Behalf Of
> *Stephen D. Anderson
> *Sent:* Thursday, August 05, 2004 11:23 AM
> *To:* STDS-802-3-BLADE@listserv.ieee.org
> *Subject:* Re: [BP] Wed August 4th Agenda: 802.3ap Channel Model Adhoc
> Conference Call
>
>
>
>
>
> Joel, all:
>
> Regarding changes to SDD21 magnitude curve:
>
> 3 I propose these coefficients:
> b1 = 2e-5
> b2 = 1e-10
> b3 = 3.2e-20
> b4 = 1.38e-30
>
> These allow skin effect to be modeled correctly and are a better
> lower limit to a lot of channels that have been presented.
>
> Regards,
>
> Steve A.
>
>
> Joel Goergen wrote:
>
>> Wed August 4th Agenda:
>> - VNA averaging, with the higher resolution, do we really need to
>> wait the 15minutes for 16averages?
>> - SMA De-Embedding for test cards
>> **If you have an idea on this, please send it out to the
>> group/refelctor today. I'm open on this and would like some thoughts.
>> **I plan to send the new run of test cards out right after we
>> finalize the de-embedding.
>> - Changes to SDD21 from 50Mhz to 4.5Ghz. I want to discuss this and
>> plan to send out the equations tonight with a 4dB drop in this range.
>> - Group Delay Variation
>> **I want to walk through the process for this. Petre or Jeff ...
>> if you have a slide you could put together to show how we create
>> this, I would appreciate it.
>>
>> Thurs August 12th Agenda:
>> - Changes to crosstalk mask
>>
>> The remaining two meetings will be to discuss the final mask sets to
>> present to the body for approval sept/oct.
>>
>> Take care
>> -joel
>>
>> Joel Goergen wrote:
>>
>>> 802.3ap Channel Model Adhoc Conference Call times:
>>> August 4, Wed, 10am PDT
>>> August 12, Thurs, 10am PDT
>>> August 19, Thurs, 10am PDT / we should consider moving this to Sept
>>> 20th
>>> Sept 9, Thurs, 10am PDT
>>>
>>> Hi Everyone,
>>> Please set these times in your schedules. Agenda will be sent out
>>> Monday
>>>
>>> -joel
>>> ---------------------------------
>>>
>>> Everyone that wants to is invited to participate. Anything decided
>>> will not be decided, but 'recommended'. Please keep that in mind.
>>>
>>>
>>> Conference ID: 4379020
>>>
>>> Dial-in number: 8773262337
>>>
>>> International dial-in number: 303-928-3232
>>> Take care
>>> Joel Goergen
>>>
>>>
>>>
>>>
>>>
>>>
--
Justin Gaither Phone: (512)634-1305
Xilinx, Communications Technology Div. Cell: (512)585-5659
805 Las Cimas Parkway Fax: 512-306-7293
Suite 250 email: justin.gaither@xilinx.com
Austin, TX 78746 WWW: www.xilinx.com