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  1. #1
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    Wireless - Preamble Mode: Long / Short / Both ?

    Dear all,

    Kepingin tanya apa sih efek nya dari masing - masing mode ini? lantas pakai yang mana bagusnya ?

    thank

  2. #2
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    Kalo gak salah inget dari yang pernah saya baca pake short jika wireless link reliable (sinyal stabil dan bagus)...long jika dianggap kurang stabil mungkin sinyal naik turun terlalu jauh...misal dari -60 tiba tiba bisa -70 gitu....

    kalo diclient pake both selalu seh saya...karena short/long ngikut dari AP

    CMIIW Click here to enlarge

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    klo diliat dari sini


    * What's the difference between Short and Long Preamble?

    The preamble is part of the IEEE 802.11b physical layer specification, and specifically, part of the Physical Layer Convergence Protocol (PLCP). All 802.11b devices must support the long preamble format, but may optionally support the short preamble.
    If your device supports the short preamble and you are having trouble getting it to communicate with other 802.11b devices, make sure that it is set to use the long preamble.
    berarti klo kita cuman pake 802.11b doang, boleh di set ke long preamble aja ya?

  4. #4
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    sip sip ..
    informasinya cukup buat saya.

    Berarti kalau gitu, kita set aja di both biar aman ..
    he he he ..
    karena kalau pake mini nya a/b/g biar gak bingung lagi ngutak ngatik parameter itu.

    Thanks ya ..

  5. #5
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    wahaha.. kaga pernah ngutak atik nyang ituh...
    xixixi

  6. #6
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    ane mah default aja dah Click here to enlarge
    both

  7. #7
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    yang terpenting itu bukan preamble tapi ACK-time-out

    These values of ack-timeout were approximated from the tests done by us, as well as by some of our customers:
    Code:
    range 	ack-timeout
                5GHz 	5GHz-turbo 	2.4GHz-G
    0km 	default 	default 	default
    5km 	52 	          30               62
    10km 	85 	         48               96
    15km 	121 	         67 	         133
    20km 	160 	         89 	         174
    25km 	203 	         111 	         219
    30km 	249 	         137 	         368
    35km 	298 	         168 	         320
    40km 	350 	         190 	         375
    45km 	405 	          - 	           -
    Last edited by d3v4; 20-04-2008 at 00:13.

  8. #8
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    bos d3v4,

    - jadi ketimbang dynamic, lebih baik kita set statis aja yah nilai ack-timeoutnya?
    - lebih baik nilai statis ini kita set di AP, atau di client?

    thanks bos!

  9. #9
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    klo ptmp gmn cara set ack-timeout nya ya?
    jarak klien ada yg jauh deket tuh..

 

 

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