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  1. #1
    : atazaza
    : 10269
    : Nov 2009
    :
    : 167
    : 190
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    : 0
    Array


    GHB

    ,,

    Long range connections WIFI 802.11b+g 2.4 GHz .

    , !!

    Point to Point Infrastrcture Point to multi point , , wireless .

    WIFI LOS (line of sight) , 802.11 LOS , ( 900 800 450 ) LOS , .
    LOS Clear Fresnel zone .

    4 ( ) :

    1) high receive sensitivity ( Server Radio) :

    receive sensitivity ( Server) , , Client Radio Access point , .
    receive sensitivity -90 dbm 1 mb/s 802.11b , sensitivity -96 dbm , .
    .

    2) output power ( ) :

    Output power receive sensitivity , radio , Output power signal () receive sensitivity ( ) .
    output power , , noise .

    Client output power 15-18 dbm 32-65 mw , Access point , 15-23 dbm 32-200 mw .

    :
    client Access point , 18 dbm 65 mw , ( dbm) , access point signal -90 dbm , ( ) , signal Client radio , ( ) , , Signal 12dbm , signal , , -90 dbm access , Access .
    , .

    3) Noise , :
    noise , access point client radio , channel channel 1 , 2.402 2.422 20 Mhz 11g , Noise , , , , !

    radio ! , , , noise .

    wireless ( output power) , SNR Signal to noise ratio , noise noise floor , signal , snr stable . snr system 15 dbm , noise -90 signal -60 dbm SNR 30 .

    4) 1) 2) :

    noise ( ) , output power receive sensitivity .

    dbi 32 dbi , 2.4Ghz , 5 299 ,
    dbm , 2 watt , ,
    , , ( ) , antenna .

    , parabolic dish , dish () antenna coaxial () , radio , , .

    coaxial , , Out door , ( )
    --------

    , , .

    , , , , .

    internet wireless , , , 3G wireless connection 802.11 ( WLAN) .


    , , .

    , ,,

    , Wireless 11g pci .

    Access point , radio client switch , Access point Client Wireless .

    Antenna 2 dbi , ( ) , 5 dbi .
    dbi .

    LOS radio .

    :

    1) Access Point
    2) Antenna
    3) Coaxial Cable
    4) Connectors

    Client :

    1)Client Radio (PCI
    2) connectors
    3)Coaxial Cable
    4)antenna

    -------
    :

    APs transsmition 15dbm , , 15dbm 32mw .
    Free Space Loss :




    :
    D :
    f : , 2400
    FSL : free space Loss .
    :
    \
    \
    \
    .

    GHZ , loss .
    db 2400) Final Power WIFI GSM 900Mhz , , , .

    .

    120 db Loss 120 db Total Gain , total gain :

    TX Power Radio 1
    + Antenna Gain Radio 1
    - Cable Losses Radio 1
    + Antenna Gain Radio 2
    - Cable Losses Radio 2
    -----------------------
    = Total Gain

    Output power client + Client + Cable loss client + + cable loss = total gain .
    receive sensitivity Client AP , , .

    :
    Client TX = 20 dbm
    AP TX =20dbm
    Client Antenna = 12 dbi
    AP antenna = 15 dbi
    cable loss = 6.2 db , 15 Client , ( ) WBC 195 RG-58 Coaxial Cable 50 impedance .

    Total gain = 54.6 db output power , total gain client = 54.6-20 = 34.6 dbm , receive sensitivity = -85db client , 9474.494 , 9.5 !!

    Total gain =34.6 db , -85db , 119.6db , :



    9.5 . AP antenna 12dbi 9 dbi , 6.7 .
    , , system , 5 , !

    :
    :
    1) : AP
    Indoor , coaxial AP .
    Client indooe Client .

    AP output power 20dbm 100mw , US Robitics , Antennal connector RP-SMA , connectors , .
    2 , External , internal 1 dbi .
    AP USR5451 US Robotics


    specification Sheet :
    \
    , , . USR5451 , outpout power , 100mw 20dbm ( ) , USR5451 MAXg 125mbps , , 108 108 Indoor 100% 40mbps .

    2) Client PCI Card
    Aironet PCI4800 Wireless Card , 20dbm , connector MMCX .


    Client Antenna (3
    12dbi ***** Client PCI card , radio antenna coaxial WBC195 black .



    AP antenna (4
    15dbi omni 30 :


    Pattern Omni 15dbi , Horizontal 360 .

    Cables( 5
    WBC195 , Coaxial RG-58 , Loss , , loss .
    15 Client , :
    \

    Connectors( 6
    2 N-MALE WBC 195 , Connector N-female :

    Coonector RP-SMA AP :

    MMCX Client :


    , WISP ( + + (


    , ,


    coaxial
    Resized to 65% (was 1007 x 370) - Click image to enlarge

    Crimping Crimper , Coaxial internal Conductor Stripper , internal conductor connector connector connector shield Outer Conductor ( shield ground ) connector , Connecor coaxial Crimper connector .
    striping crimping , .

    5 , LOS 100% , , signal free space , , ,
    LOS , Full Clearance fresnel Zone , fresnel zone 2 radius LOS line , fresnel zone , connection .

    fresnel zone free space , \ fresnel zone radius D , 10 , , 18 , 18 , fresnel zone fresnel zone .
    ( D) .
    full clearance fresnel zone connections , 100 , 24 connection , signal clearance 60% fresnel zone .

    fresnel zone LOS full transsmition :
    \

    ----------

    , Access point , 15dbm , PCI card , connector RP-SMA , , connector MMCX connectors .
    coaxial RG-58 , loss per meter WBC-195 ,

    , , , , , , .

    , ,

    6.7 9.5 , 6.7 , 15dbi , 15dbi 9.5 .

    recieve sensitivity -90dbm , 16.8 .
    output power gain ( ) receive sensitivity , , Hyper Connections .

    20 dbm 6 . , .

    connection , NLOS connection ,

    , , , .

    USR5451 80 , 12dbi 10 21 , 15dbi 10 90 , Omins 15dbi 65 , 90 , , 6db ( ) , .
    Aironet PCI4800 Wireless Card 60 ( ) transmission power + receive sensitivity , Connector radio , .
    MMCX , WBC 195 , connector WBC 195 , WBC 100 .
    connectors 10 connectors N-MALE 25 , RP-SMA MMCX .
    , WBC 195 , coaxial RG-58 , LOSS .
    WBC-200 WBC 195 , loss 195 , WBC 400 , LOSS , LOSS .
    ! 1000 feet reel WBC 400 400 , WBC-195 1000 349 , WBC 200 269 .

    Crimping connectors , , Crimping CAT5 RJ45 .

    connectors , , , 350 333 , , .
    WBC 195 RG58 3 , .
    WBC , , :

    :
    , Wire transfer 400 , international Credit cards , , Credit card , , , ( , ) .

    US UK ( ) , , shop and ship , US mail Box UK mail Box , , US mail box , , forward , , , .
    lb 5.5 lb , 11 , , , , , connectors .
    specification sheets .

    , LOSS cable , loos 3db , connectors loss , specification sheets , connectors loss .
    1000 ! ! 370 1000 730 , .
    15 , 25 50 , .

    ....

    parabolic dish 32dbi , , , dbi ,
    Omni 360 180






    6.7 () 3 .
    coaxial , long cables .
    loss , .

    Indoor radios , .
    , outdoor , , coaxial cables radio , , .

    ( .. )
    Enclouser , NEMA weatherproof outdoor BOX AP client Radio .
    enclousers .



    :
    \
    AP cable loss .

    AP coaxial cable pigtail , pigtails cable AP , pigtail , Pigtail :

    connectors .

    :
    1) enclouser AP Client .
    2) POE Power over ethernet .

    , , .
    , , AP AP ! ethernet AP Client Radio ethernet CAT5 ethernet , .
    CAT5 Client Radio AP , CAT5 POE indoor :


    ethernet POE , ethernet ethernet AP , CAT15 15 , POE adpter , CAT5 AP .

    CAT5 coaxial loss RF signal cat5 , RF signal pigtail AP ( ) , cat5 1000feet Reel 15 , coaxial ! loss RF signal .

    client AP , Client Radio , PCI , outdoor enclouser PCI Client Bridge Radios , AP Bridge , AP bridging Access point) .
    Client Bridge :

    g470 output power 200mw bridge , pigtail connector , Pugtail , ethernet , POE AP .

    , AP+PC , AP , , ethernet card interface client Bridge ethernet RF Signal Pigtail .

    :
    1) :
    AP + 1m pigtail + Antenna + enclouser+ POE injector + ethernet device
    :
    ethernet device 5
    POE injector 7
    enclouser ! fiberglass 20 31 enclousers 200 . 20 .
    1m pigtail 7 .

    2) user device
    client bridge+ 1m pigtail + Antenna + enclouser+ POE injector + ethernet device

    client bridge 200mw . 70 .


    , AP Client Bridge 200mw 23dbm , :
    , Client :
    Client TX=23dbm client ant =15dbm AP ANT=15dbm 1m pigtail with connectors loss =-1dbm .
    =51dbm LOS 60% clear fresnel zone :
    62.5km 1mbps , Max receive sensitivity=-85dbm -90dbm max transmittion space =111.4km 1mbps .

    AP 200mw Senao NL-3054CB3+ Deluxe .


    specification sheets Senao NL-3054CB3+ Deluxe :
    \

    specification receive sensitivity -94 dbm b 1mbps -92 dbm @ 6mbps g , 176km Client , sensitivity noise Noise =-100 db .
    -3dbm loss .
    clear fresnel zone + no noise + and no multipath problems .
    .

    ..
    noise floor receive sensitivity -94dbm ,
    noise receive sensitivity receive sensitivity , noise floor (noise AP blutooth ) -85db -85 () , :62.5km recive sensitivity -94dbm , Noise , Noise .
    total gain (AP ANT,client ANT,client or server TX) , 1db 176km 156km 1db , !

    noise thermal noise . .

    100 , .

    Outdoor , Outdoor outdoor . , ,

    , output power , receive sensitivity Noise , .
    gain output power radio
    ( ) , output power Ampilifiers .

    .
    Limit P2P 54w EIRP (EIRP power ANT).
    Limit PtM 36W EIRP .

    , ampilifiers , US US , , !
    .

    -----------

    :

    Outdoor , Oudoor servers client , .

    :
    radio board enclosure POE .
    radio Indoor radio boards AMP .
    rootenna enclosure built-in antenna ( ) . (rootenna enclosure radio signal ) .

    clients :
    9dbi ***** :
    \

    :
    \


    antenna , encluser .

    , 154$ , 146$ 10 Pack .
    radio Output power 400mw AMP , enclosure POE Adapter Plugnplay client .

    :
    \
    clients , bridging :

    bridges , encluser 2-5dbi :
    1)19dbi Panel Enclosure Antenna with 400mW Senao NCB-3220 802.11b/g
    \

    Radio bridge senao NBC-3220 , signal 400mw rootenna 19dbi , ethernet .
    209$ !!
    radio200mw 172$

    2) 15dbi Rootenna with 200mw NL-2611 CB3 Plus Deluxe 802.11b
    \
    rootenna 15dbi , radio 200w bridge .
    152$

    3)12dbi 2.4GHz Die Cast Aluminum Enclosure Antenna with 200mw Zyxel G-470 802.11b/g
    \

    zyxel bridge 200mw rootenna 12dbi , .
    149$

    4)15dbi Rootenna with 200mw Zyxel G-470 802.11b/g
    \

    , zyxel 200mw , rootenna 15dbi .
    143$
    136$ 20 .

    :
    \
    ---------------------------

    clients , signal , , DSL .

    , .

    :
    \
    antenna , radio radio ,
    SUPER AP 802.11B/G output power 300mw-2w .
    encluser N-Female , output power ampilifiers .

    :
    802.11b/g Integrated Antenna Models
    ***** , Bridge , backhaul .
    :
    DUAL RADIO MODELS
    radio , , AP g 63 , .
    radios AP backhaul , , .

    backhaul 5.8Ghz 802.11a , noise , a noise 2.4Ghz 900Mhz .
    backhaul Grid Dish 24dbi .
    LOS 60% fresnel zone .

    \
    802.11b/g MultiSSID/VLAN
    2 radio g 900mhz 900Mhz 700mw , G 400mw .
    ssid , ssid . 2 radio ssid .

    \
    RUGGED MESH
    MESH , MESH full administration , ( ) .

    AP+MESH , WISP .
    MESH Backhaul software AP Bridge .

    software clients 3 3 , softwares .


    :
    \

    , , .

    .


    1 . 6 . 11

    enlage









    : dbm dbi

    : dbi , db gain in an isotropic radiator , Isotropic radiator 360 , Isotropic radiator Beam , 360 .

    dbm dbi , db , ( receive sensitivity , outpout power , antenna gain ..)


    :
    1- :
    , 3G wireless connection 802.11 ( WLAN) .
    2- WLAN WLAN 802.11
    3- 3G wireless connection


    802.11 WLAN , WLAN WIFI IEEE 802.11 a+b+g+n
    Mhz ,
    mbps 1.8 mbps upload ,
    PC CARD download CD Centos 200 2 ! 2.4 !

    20 WLAN 20 WLAN EV-DO rev A , 2.4 mbps .
    , , prepaid 90 , 2 DSL 1000 , DSL 360 , 2.4 mbps 90 !! .

    , .
    ( ) 5 1.5 , 60 , 90 bandwidth
    , , 15 .

    CDMA2000 1x EV_DO REV A , 2008 REV B bandwidth 20 MHZ 73 !! , 2010 UMB download 200 !

    3G WLAN , 30 ! hyper link WLAN .





    : antennae .


    : Client ***** panel grid and parabolic Dish
    **** 18 dbi , beam 30 degree ,



    grid 24 dbi 8 degree ,



    parabolic 31 dbi 5 degree ,



    , Parabolic 399 , ( )

    yagi , , , ,
    Omni Omni omin .




    , omin Directional 360 , rubber duck 1 dbi 9 dbi ) Pigtail coaxial ) , .
    omni 8 dbi 15 dbi , dbi.



    , GSM CDMA2000 , sectorized omni Directional Array , 2 3 4 90 120 180 360 , Signal Splitter radio .


    omni 2 :

    1- vertical beam Omni , Vertical beam 8 degree . sectorized omni directional Vertical beam 15 degree , , tile .

    2- radio radio .

    GSM Radio per sector 3 sectors 120 , WDS repeating WLAN .
    EV-DO , , NLOS 1 ev-do , wimax Outdor NLOS , WIFI WIMAX , .
    Multiplexing WIMAX WIFI , OFDM WIFI , .

    3.5 Ghz , , WISP , 2.4Ghz



    : wireless 20 NLOS

    : None line of sight outdoor system , clear frensel zone , indoor client outdoor station , EV-DO 1x , 20 .

    outdoor NLOS , 20 wimax WIFI ,
    NLOS non clearance frensel zone outdoor BS indoor client CPE .

    wimax Multiplexing WIMAX 802.11g a , OFDM , Multiplexing , , WIMAX 73 Mbps , g 54 Mbps , BS indoor client , , .

    WLAN 200 , 300 200 ( ) ,

    802.11 wimax 15 10 , ) wifi ) 500-1000 , wimax , WIMAX Outdoor , WIFI indoor , OUTDOOR wimax .

    henil 5.8 GHZ , 802.11) a a 5.1-5.2 5.7-5.8(


    : 2.4Mb Backbone

    : , 100 50 2 , , 10 , 100 500 , 2 , .

    , , 100 3000 online , Desktop PC , download .
    bandwidth optimization , backbone , , .

    EV-DO download 500 kbps , 2 ! signal strength , . .


    : a,b,g,n N 340Kb

    802.11

    : 802.11n , 600 mbps 200-330 , modulation , , wifi 54mbps g , 30 mbps Access point , AP , 45 mbps 20 MHZ .

    802.11n 40 MHZ , n , g .


    : WiFi LOS

    : modulation type . Noise , receive sensitivity , outputpower, receive Gain .
    .
    , Xray , Xray 3X10^16 , , 10^9 WLAN .

    WLAN 900mhz , NLOS , .
    wimax , wimax , prereleased versions , 8 , NLOS , noise floor =-100 ( Noise) , noise , ( noise ) , wimax 2.4 5.8 ( wimax 2.4 ) , 5.8 , wifi 2.4 , NLOS .
    WIMAX , coverage , .
    :
    \
    wimax wifi , NLOS wifi .
    wimax base station , wifi station .


    :

    : omni 15dbi , , Roaming users 2 omni , Sectorized omni directional array , .


    :

    : 5 , , transmission power , , Output power 36dbm 2watt infrastructure point to multi point , 54dbm point to point


    : gsm

    : , ,



    : WiFi 802.11 54Mbps !!! .

    : signal , specification sheets AP Client receive sensitivity , -75 54mbps , -80 24Mbps g b 1mbps recieve sensitivity -92 db .
    signal -75db -70 -65 54mbps , -90 -92 2mbps , 24,12,6 g , 5 ,2,1 b .

    .

    receive sensitivity .

    AP 25mbps 54mbps ,


    :
    ap
    1- 2100
    2- 500
    3- 8dbm
    ap
    receive sensitivity -89

    : ( ) 8dbi ( ***** ߿) .

    booster Noise .
    internal radio (laptop) TX 18 15 dbm (15) antenna 2dbi , + 8dbi AP antenna -1db loss , :24db , -89db 4.4km , .
    receive sensitivity .

    booster noise + noise Noise -89 AP signal noise noise noise floor -85db 2.7km 60% clear fresnel zone , fresnel zone ( clear fresnel zone LOS , client , client ).

    radio AP client receive sensitivity stable +-2dbm sensitivity , sensitivity -87db noise -95db , noise 3.5km , .

    Noise -80 -78 . noise floor netstumbler , prisim . , .
    multipath signal .

    booster Recieve gain Booster 500mw hawking recevie gain 100-200-500mw 1-2-4db , Noise .

    booster sending , client , client .
    booster total gain=
    27dbm 500mw + 8dbi + 2dbi ant gain in laptop 2db loss .
    35dbm , receive sensitivity laptop client radio -89 :15.7km !!

    3.5 Client . noise floor -90db ( )



    :

    8 850
    noise netstumbler -100
    noise
    noise floor

    :
    noise -100 prisim netstumbler Noise -100 noise ,

    Signal
    fresnel zone






    nlarge


    transmittion booster booster , .
    noise .
    .








    a110
    -66 dbm 54

    air live 1 w 15 dbi dlink


    -66db signal -87db , .
    signal -66 850 _66 ( AP)



    : IEEE 802.11g IEEE 802.11b " "

    : g b , g 54mgps b 11mbps , MIMO MAXg 108 125mbps .
    bandwidth , b 5mhz , 14 channel (g B ) 2.4Ghz , channel 14 channel 22mhz .
    g bandwidth 20mhz , , N bandwidth 40Mhz ( ) N b+g+a


    : access point "IEEE 802.11b" 4wat + antenna 15 dbi

    access point "IEEE 802.11g" 500mw + antenna 15 dbi


    : , TX b 4watt ! g 500mw , g () .
    AP g , b signal , b signal receive sensitivity transmission power Speed protocol specification sheet radio .
    siganl 5mhz , signal carrier data signal .

    4watt signal 8 500mw


    : ...... " " " "
    ......


    : , radio ! .
    , .
    , , .


    : 20
    120 access point "IEEE 802.11b" 4wat + 3antennas 15 db

    : indoor Outdoor outdoor signal frensel zone .
    indoor , , signal .
    user radio Indoor .


    : 20
    " 40

    : , 20 Indoor , 5 indoor .
    outdoor 200 P2P .



    :


    : lighting protectors connector , radio , .

    , , board , access point dlink antenna connector Board !
    board , radio connection .


    : (( ))
    2 180

    3 120

    4 90

    : 120 , ( ) dbi , , dbi

    120 360 , 3 4 2 120 , 2 ,
    4 , 3 radio , antenna connector pigtail , radio
    GSM radio per sector radio .
    3 sectors radio ( WLAN) signal splitter 3 4 , radio power sectors , Antenna diversity radio client , Radios , signal splitters .

    diversity :
    \

    : 20 .......... ...... .

    .....
    3
    23
    ( )
    20
    alcon \

    :


    AP >>>> AAP-2410gM IEEE 802.11b/g Output Power: 1W
    \

    ANTENNA >>>>>( 3 ) AN24015A
    ANT Gain: 15.5dBi
    Beamwidth deg. : Horz. 120
    Vert. 7
    \


    .....
    ANTENA >>>>>>> AN24015B
    ANT Gain: 15dBi
    Beamwidth deg. : Horz. 360
    Vert. 15
    \


    USB-24005 (IEEE 802.11b/g)
    Output Power: 50mW
    ANT Gain: 5dBi
    \




    :
    alcon

    5.8GHz Wireless System

    3.4GHz Wireless System

    2.5GHz Wireless System

    2.3GHz Wireless System (New Frenquency)
    "" 2.4GHz 2.4GHz ....


    ALINK-2450 (IEEE 802.11b)
    Output Power: 5W
    \
    802.11b 802.11g


    indoor



    :
    : 30dbm AMP radio radio access point , software :
    LEFT TO RIGHT

    Site Survey
    DHCP Client
    Suppressed SSID
    Wireless access control by MAC address(deny or accept)
    WPA Support(WPA personal and enterprise)
    Web-based configuration via popular browser(MS IE, Netscape )
    Windows Locator program to help find IP in DHCP client mode IP
    Firmware upgrade and configuration backup via Web
    Reset to default by WebUI

    AP enclosure , :
    Ampilifier , software radio ( ) , ! 500-700 ( ) .
    software repeaters repeating repeating .

    client ! .

    5.8 WDS mode backhaul , 2.4 Noise , interfering signal .

    5 watt 1watt ampilifier noise signal , client , () 1 watt AMP 2watt AMP signal -75db ( client) client , Noise radios client signals APs ( WISP ) noise floor () Noise .

    , .
    , . indoor signal signal , , () .
    .
    AP repeater ( repeaters) AP repeaters , signal ( ) APs repeaters .




    :
    200
    hub hub 50

    noise

    : noise wireless , .

    15dbi PW 20dbm 100mw , .


    : 10 300 300
    5 M

    : , , .

    repeating , Site survey AP recieve send ( recieve signal signal ) survey .

    AP AP () connection , , .


    : SNR
    . BER (Bit Error Rate)
    ... (AM or FM) SNR (PSK,QPSK, DPSK ....) BER

    : analog wave guid coaxial UTP-CAT5-6 . SNR analog Noise floor , noise floor -80db -85db noise floor , "

    : -80
    -88
    :
    noise floor snooper Noise power amplifiers Noise floor ..
    600 noise power amplifiers

    \


    atazaza
    [IMG][/IMG]
       

  2. atazaza :


  3. #2
      ahmed_hany07
    : ahmed_hany07
    : 9114
    : Sep 2009
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    : 1600
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    :




       

  4. #3
    : elhgan77
    : 12563
    : Jul 2010
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    : 50
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  5. #4
    : atazaza
    : 10269
    : Nov 2009
    :
    : 167
    : 190
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    elhgan77 \








    5110 12
    501 12


    atazaza
    [IMG][/IMG]
       

  6. #5
    : elhgan77
    : 12563
    : Jul 2010
    :
    : 16
    : 50
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    : 0
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    5110




       

  7. #6
    : samzero
    : 235
    : May 2008
    : 206
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    : 0
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    :




    .. : :

    :

    1. ( ) .--->
    2. ... . --->


    ... ...


       

  8. #7
    : atazaza
    : 10269
    : Nov 2009
    :
    : 167
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    : 0
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    elhgan77 \

    5110


    adsl 801


    atazaza
    [IMG][/IMG]
       

  9. #8
    : atazaza
    : 10269
    : Nov 2009
    :
    : 167
    : 190
    Array
    : 0
    Array

    :


    samzero \


    .. : :

    :

    1. ( ) .--->
    2. ... . --->


    ... ...
    ghb


    atazaza
    [IMG][/IMG]
       

  10. #9
    : elhgan77
    : 12563
    : Jul 2010
    :
    : 16
    : 50
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    : 0
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    [COLOR=rgb(0, 0, 0)]

    500 1200 20 500 501






    [/COLOR]


       

  11. #10
    : atazaza
    : 10269
    : Nov 2009
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    elhgan77 \
    [color=rgb(0, 0, 0)]

    500 1200 20 500 501






    [/color]
    ( ..... )

    20

    2 ap


    atazaza
    [IMG][/IMG]
       

  1. " "
    preans_2007
    : 4
    : 13-06-2014, 06:38 PM
  2. mo7med
    : 0
    : 19-06-2011, 01:23 PM
  3. mo7med
    : 0
    : 17-06-2011, 02:47 PM
  4. ( - - )
    M.Osama
    : 3
    : 13-06-2010, 09:12 AM
  5. : 6
    : 12-11-2009, 10:48 PM

, , ,