wireless incompatibilities
Dennis Lou
>Dennis Lou <dl...@sonic.net> wrote:
>
>> 802.11a is 5Ghz DSSS. I'm unaware of any FHSS provisions in the
>> 802.11a
>
>I'm not aware of 802.11a being any sort of spread-sprectrum.
>Certainly not frequency hopping. But I could easily be wrong...
Oops, you're right. 802.11a is not spread-spectrum at all.
-Dennis
Dennis Lou
>Wireless question...
>
>Has anyone been able to get Raylink's WISP (or any other vendor's)
>802.11a FHSS cards to work with Breezecom's BreezeAccess 2 extended
>range wireless stuff.
>Apparently the Raylink cards work with the BreezeNet Pro.11, but not
>with the new Breeze Access 2 Access units.
>This is all 802.11a FHSS stuff, and therefore "should be" compatible.
802.11a is 5Ghz DSSS. I'm unaware of any FHSS provisions in the 802.11a
spec. 802.11 (no bloody 'a', 'b', 'c' or 'd') provides for FHSS
(as well as DSSS (which is forward compatible with 802.11b) and diffuse-IR).
You should probably double check which standard it uses.
I quickly scanned the BreezeAccess-II data sheet off of their website
and can't find any mention of 802.11 compliance.
http://www.breezecom.com/Materials/PDFFiles/BreezeACCESS_II.pdf
However, it does indicate 3Mbps datarate which I don't recall being a
part of the original 802.11 FHSS spec.
-Dennis
Ken
Has anyone been able to get Raylink's WISP (or any other vendor's)
802.11a FHSS cards to work with Breezecom's BreezeAccess 2 extended
range wireless stuff.
Apparently the Raylink cards work with the BreezeNet Pro.11, but not
with the new Breeze Access 2 Access units.
This is all 802.11a FHSS stuff, and therefore "should be" compatible.
So far, Breezecom's response has been that they don't guarantee
compatibility, and that their equipment is "802.11 compatible on the
basic level", but that "compatibility with other vendors equipment was
implemented but not fully supported". Raylink seems to suspect that
Breezecom isn't allowing compatibility because of the price difference
in their competitor's products.
Isn't this what "standards" are supposed to protect John Q. Public from?
Ken
s...@cs.berkeley.edu
> 802.11a is 5Ghz DSSS. I'm unaware of any FHSS provisions in the
> 802.11a
I'm not aware of 802.11a being any sort of spread-sprectrum.
Certainly not frequency hopping. But I could easily be wrong...
Steve
Ken
In any case, These devices are all 2.4gig FHSS and all claim 802.11
compatibility. I was hoping someone might have figured out how to get
the Raylink cards to talk to the new breezecom breezeaccess2.
Apparently, there's something about the new breezecom stuff, perhaps the
compression that lets them go a bit faster than other 2.4gig FHSS cards
that is keeping them from communicating with other vendors 802.11 2.4gig
FHSS devices.
Ken
Jeff Liebermann
>Has anyone been able to get Raylink's WISP (or any other vendor's)
>802.11a FHSS cards to work with Breezecom's BreezeAccess 2 extended
>range wireless stuff.
>Apparently the Raylink cards work with the BreezeNet Pro.11, but not
>with the new Breeze Access 2 Access units.
Correct. Various employees of Breezecomm have indicated that the Raylink
cards choke on some of the extended feature and proprietary enhancements
found in the Breeze Access II access points. This was discussed in
minute detail in the wireless ISP mailing lists at:
http://www.isp-wireless.htm
Search for "BAII vs Raylink" in the subject line. Be sure to read the
stuff by Patrick Leary of Breezecom.
>Isn't this what "standards" are supposed to protect John Q. Public from?
Nope. That's what Interop and various compatibility testing forums are
suppose to shove down the throats of those companies that dare deviate
from published standards. Without enforcement, standards are worth
zilch.
--
Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060
(831)421-6491 pgr (831)426-1240 fax (831)336-2558 home
http://www.LearnByDestroying.com WB6SSY
je...@comix.santa-cruz.ca.us je...@cruzio.com