Bummer !!!! I guess we'll hold back
on the party until you can join :):).
Regarding below, we've shown data to support the lower BW. I do have
data to show that there is not a difference between 1 sample and 16
samples at 300hz IF BW. My concern is what happens to the nulls
between the two cases and what type of null can we consider
irrelavent. I was thinking a change of 20dB within 200Mhz to 300Mhz
total span.
take care
-joel
Graeme Boyd wrote:
Joel
I can not make the meeting today, however would like to give my comments
on averaging.
One can have a low bandwidth with little or no averaging, or one can
have mid bandwidth and higher averaging. The problem with setting a low
bandwidth is analog distortion due to the small BW, whereas if one opens
up the BW a bit but increase the averaging (hence total time quite
similar) we have found that the reproducibility of the repeatably taking
the same measurement is better. The best values we have found is a BW of
1kHz and averaging set to 16.
Graeme
On Tue, 2004-08-03 at 09:33, 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
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