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.dsy:it. : Powered by vBulletin version 2.3.1 .dsy:it. > Community > Tech > [wifi][dsi] WLAN di dipartimento: antenne Thread Rating: 5 votes, 4.40 average.
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neo
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3Com bringt zwei neue Wireless-Bridges für innen und außen auf den Markt. Die beiden Geräte unterstützen den 802.11g-Standard für drahtlose Datenübertragung und erlauben eine Übertragungsrate von bis zu 54 MBit/s. Sie eignen sich für die Vernetzung von zwei oder mehreren Gebäuden bis zu einer Entfernung von rund 16 Kilometern.

Bello caspio, ma mi piacerebbe sapere, a livello tecnologico, che soluzione hanno trovato per la versione "interno"... Intendo chissà come hanno fatto a renderlo efficace tra muri e company?

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08-09-2004 10:02
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cdmp
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Mah.. secondo me un'antennina fuori dalla finestra te la fanno mettere comunque..

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I keep trying to locate a meeting of Quantum Physicists. But everytime they set a meeting time, the location changes. And vice versa.

08-09-2004 19:05
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10t8or
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o altrimenti sparano fuori 1W di potenza lol! =)
sarebbe da indagare bene modello e specifiche alla mano.. uhm..

tent:wq

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08-09-2004 22:08
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neo
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già franci, e con la stessa antenna fanno le uova al tegamino! :D :lol:

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08-09-2004 22:10
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cdmp
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lol :D

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I keep trying to locate a meeting of Quantum Physicists. But everytime they set a meeting time, the location changes. And vice versa.

08-09-2004 22:42
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10t8or
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cmq non si riesce a capire ne che antenna usa ne che potenza di uscita ha.. cmq rimane il fatto che la versione outdoor promette di coprire gli uffici dentro al palazzo e di poter comunicare nel raggio di 16 km (!) verso altri dispositivi su palazzi nei paraggi.. mah..
va montato fuori e dice di essere a prova di intemperie..
doppio mah..

tent:wq

PS: http://www.linuxelectrons.com/artic...040907121932293
e
quello indoor http://www.tomsnetworking.com/News_story_more_761.php

insomma non sembra altro che quello che famo noi quando prendiamo un ap, gli leviamo l'antenna standard, gliene mettiamo una nostra fatta come si deve e la puntiamo fuori dal palazzo verso quello vicino.. no? =)

ok trovato il datasheet.. lol

http://www.3com.com/products/en_US/...sku=3CRWE91096A

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Last edited by 10t8or on 09-09-2004 at 10:35
09-09-2004 10:30
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10t8or
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troppo bello.. l'antenna non e' inclusa e dicono che la distanza dipende dall'antenna.. ma grazie tanto questo gia lo sapevo.. ti piazzo na bella parabola.. mah..

poi dicono i massimi risultati li ottinei mettendo piu antenne (!) evvabbe'!

cmq tenetevi forte arriva il bello:
"
Caution: Local regulations outside of the United States may limit the authorized radiated power output of the 3Com Building-to-Building Bridge Solution. These regulations limit the range for the bridging links and increase sensitivity to the existing radio environment. The maximum range expected outside of the United States is approximately 1 mile (1.6 km).
"
cioe: in italia farebbero solo un chilometro e mezzo.. evvai!

cmq dice che la versione americana da +18dbm il resto lo deve fare l'antenna.. inoltre nella webpage parla di 10 miglia e nel pdf parla di 15 miglia.. mah..

tent:wq

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09-09-2004 10:40
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cdmp
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Dobbiamo andare a insegnare loro il mestiere? :)

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I keep trying to locate a meeting of Quantum Physicists. But everytime they set a meeting time, the location changes. And vice versa.

09-09-2004 13:26
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10t8or
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e poi magari NGI mi viene a dire che non rende abbastanza..

http://www.heise.de/newsticker/meldung/51104

tent:wq

PS: mino, che tu sappia ngi.de centra con ngi.it??

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Dr. Ma. Lol. Francisco Peralta Aguaron
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No SW Patents.. Mazzetta?!
15-09-2004 14:02
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torak
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Scusate, è da un po' di tempo che sto cercando una scheda wireless... ho cercato sul forum ma non ho ancora ben capito. Voi mi consigliate allora come scheda wireless la Dwl-650+ in foto?


E' economica (25€ da mediaworld), ma i driver acx100 funzionano allora?
Grazie mille per le informazioni!
21-09-2004 21:14
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neo
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Fermoooooooooooooooooooo se cerchi quella scheda c'è un ragazzo che la vende, nuova, e funzionante, l'abbiamo testata noi!

Scrivi un PM a Puddu (questo è il suo nick) Ti assicuro che l'ho provata sul mio portatile e va da dio.. solo che a lui non serve quindi la vende! Prova a sentirlo! E' nuova! ;)

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21-09-2004 21:47
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torak
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Grazie mille per la prontezza! (minchia triplo post!!!)
Provo a sentirlo subito, sennò ho sempre un buono sconto da 25 € da consumare al mediaworld. :cool:
21-09-2004 22:01
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neo
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dimenticavo... Diciamo che però quella di puddu è una /g mentre quella che hai pastato tu è /b! ;)

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21-09-2004 22:09
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cdmp
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Attenzione però: la DWL 650+, ottima scheda e molto economica, funziona bene sotto Linux con i drivers ACX100, che tra l'altro sono in piena evoluzione proprio in questi mesi e comunciano ad essere supportati dai sw 'interessanti' (kismet per es).

La DWL G650+ invece ha un chipset differente e non abbiamo idea di come funzioni, nè se esistano drivers per linux..

Qualcuno che ce l'ha ha qualche info in più?

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I keep trying to locate a meeting of Quantum Physicists. But everytime they set a meeting time, the location changes. And vice versa.

22-09-2004 08:18
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neo
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Intervento del moderatore:
Ho levato un po' di post doppi e tripli! ;)


Si cmq Dave hai ragione... Anche se magari il nuovo kernel 2.6.8 potrebbe dare una mano sotto questo punto di vista...

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Nicolò CANEPARO - nick@bmm.it
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22-09-2004 09:27
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