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Post subject: RE: MMDS antény - použitie pre wifi
 Posted: 12.07.2004 - 11:28 #10159
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Basic
Joined: Jún 02, 2003
Posts: 167
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Post subject: RE: MMDS antény - použitie pre wifi
Posted: 12.07.2004 - 11:46 #10161
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Guru
Joined: Feb 19, 2003
Posts: 1133
Location: blizko Trencina
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Post subject: RE: MMDS antény - použitie pre wifi
Posted: 12.07.2004 - 12:03 #10162
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Basic
Joined: Jún 14, 2003
Posts: 31
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| >Driver: ved ja netvrdim ze sa to neda prerobit, akurat ze kedze je to na 2.5-2.7 GHz, tak v tomto pripade je vlnova dlzka mensia ako u 2.4 GHz, a tym padom je ten dipol v takejto mmds kratsi ako by bol potrebny pre 2.4 GHz, musis ten dipol teda predlzit, co akosi tazko urobis, takze jedina moznost je vymena ozarovaca. to skratenie dipolu je pouzitelne iba u tych mmds ktore su urcene pre pasmo 2.1-2.3 GHz, ale take sa u nas takmer vobec nepouzivaju, vsetky su povacsine na 2.5-2.7 GHz. |
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Post subject: RE: MMDS antény - použitie pre wifi
Posted: 10.09.2004 - 20:55 #11512
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Basic
Joined: Feb 15, 2003
Posts: 14
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jmi wrote: ›material:
dva medene plechove pruzky 5x54, hrubka napr. 0.5-1
v strede ich ohni do praveho uhla, teda mas 2 eLka atd podla
http://realtime.sk/~jmi/download/mmds_uprava.gif
teda pred dipol ide este "zrkadlo", napr. pocin plech 0.3mm
cafko
zaujímalo by ma ešte aka je vzdialenosť dipolu od sita nikde to neviem najsť |
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Post subject: RE: MMDS antény - použitie pre wifi
Posted: 11.09.2004 - 14:22 #11522
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Guru
Joined: Feb 19, 2003
Posts: 1133
Location: blizko Trencina
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| pichni do toho origos MMDS konvertor a odmeraj si |
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Post subject: RE: MMDS antény - použitie pre wifi
Posted: 12.09.2004 - 01:16 #11539
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Basic
Joined: Mar 15, 2004
Posts: 20
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tak trochu mimo temy, ale da sa zistit pomocou wifi anteny ci je v danej oblasti vysielanie MMDS?
Bez konvertora to asi nepojde... resp. viete niekto kolko cca stoji konvertor? |
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