Yes, the built in antenna on Orinoco cards receives alot of local signal from
other sources (interference). I'm doing the same thing myself with the Prism
2.5 cards in some of our Base Stations. The noise floor reads -101dBm when
using the TurboCell Client Manager link test but I don't quite believe the
reading. If it were a true indication of noise at the base station I would
expect to see some diurnal variation in the noise floor but I don't - the
reading is always -101dBm. I think the only way to figure out if this is
reading is really an indication of anything is to place a 2.4GHz telephone next
to the Base Station and select a channel on the phone that will cause
interference.
Just out of curiosity, what bit rate are you receiving messages at when you
look at the Client Manager link test under "This Station" ? When using the
Prism 2.5 cards, I've noticed that the bit rate is always "locked" at 2Mbit/s.
*********** REPLY SEPARATOR ***********
On 2003-Apr-02 at 11:26 AM Wisp Notes wrote:
>You are right Chris. They are not entirely junk. 98% of our network is
>using those cards. The biggest problem is each of those cards has an
>internal antenna and recieves a LOT of noise especially on the AP side.
>Thats where the major improvement came from, not the extra power. I know
>there is an Orinoco card that has no internal antenna but $150 doesn'y
>justify it. Besides, the Zcomax cards are solid, the pigtails aren't prone
>to falling out, the internal antenna comes right off, and the price is
>right. I'm done using Orinoco in any access point. Dropping the noise
>floor from -73db to -101db was enough to convince me of that. Our quality
>and range increased drastically because of a better signal, not a stronger
>one. I apologize if I ripped on the Orinoco too much, I'm just really
>excited about the results these new cards have produced.
>
>Sincerely,
>
>Paul
>Source One Internet
>
>*********** REPLY SEPARATOR ***********
>
>On 4/1/2003 at 11:58 AM Chris Conn wrote:
>
>>Wisp Notes wrote:
>>> Just wanted to pop in here and say thanks to Tony Morella. We talked
>>with him last week about some things with Karlnet we needed to fix. We
>>bought the Zcomax cards and installed them as he directed. Installation
>>was smooth and you would not belive the difference it made! 25db to 30db
>>drop in the noise floor on the AP which makes that much more useable
>>signal for all the connections. Everybody on the link has 30db of signal
>>and everybody is GREEN! Score 1 point for Demartec and Zcomax. Minus 1
>>Point for Orinoco/Agere/Lucent for the junk wireless cards they make.
>>>
>>> Thanks Again,
>>>
>>> Paul
>>> SourceOne Internet
>>
>>Hello,
>>
>>I would not say that Orionoco is "junk wireless cards" because brute
>force
>>power is not always the answer. However, I am an advocate of Demarctech
>>cards
>>that Tony Morella does sell for particular applications, and I have many
>>deployed in the field, either in RG-1000s, AP1000s and Flashroms. Some
>>are
>>bases, some are satellites, but overall they perform well. There are
>some
>>issues with the Karlnet's support of these cards in their software,
>>however it
>>is related to any Intersil card, not just the Demarctech ones. I have
>>voiced
>>these concerns to Karlnet and I know for a fact that progress is being
>>made to
>>address these issues. The problems are not severe and are not in the
>>scope of
>>this discussion. I would recommend these cards to anyone where the
>>application
>>suits a need for a slight power margin.
>>
>>My 0.02$,
>>
>>Chris
>>
>>
>>_______________________________________________
>>Karlnet mailing list
>>Karlnet@WISPNotes.com
>>http://lists.wispnotes.com/mailman/listinfo/karlnet
>
>
>
>
>
>_______________________________________________
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>Karlnet@WISPNotes.com
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