Five Fundamentals of RF You Must Know for WLAN Success

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  • Опубликовано: 19 дек 2024

Комментарии • 91

  • @junwuluo1231
    @junwuluo1231 6 лет назад +137

    It really starts at 4:11, just skip and save yourself 4 minutes. and set speed to 1.5.

    • @_tabot9268
      @_tabot9268 4 года назад

      Think you bro ¶

    • @craig893
      @craig893 3 года назад

      Exactly what i did.

    • @Wadmd
      @Wadmd 3 года назад

      Nice

  • @DupondBenoit
    @DupondBenoit 10 месяцев назад +2

    thanks to this video, i was able to succefully pass the past exam questions i’ve been practicing. I got he past questions from Leanology World for free , they gave me official CWNA 109 study guides for free as well but those study guides where not enough for me, this video tutorial was able to put the knowledge that i got from the study guide into perspective. ❤ thank you a much for making this tutorial video ❤

  • @WadeGerencser
    @WadeGerencser 3 месяца назад

    Always a great refresher! Taking CWNA this week!

  • @chimeranzl9147
    @chimeranzl9147 6 лет назад +19

    Save yourself some time, jump to 4:20. Brilliant overview.

  • @joelpanettaonline
    @joelpanettaonline 7 лет назад +22

    How the heck can 19 people give this a thumbs down?????? Tom & CWNP are the best out there at explaining this stuff.

    • @tomwold7288
      @tomwold7288 7 лет назад +3

      Joel Panetta Online Simple why there are 19 thumbs down. 19 idiots = 19 thumbs down.

    • @sbyrum
      @sbyrum 7 лет назад +9

      Keep in mind there are people that actually believe that earth is flat. unfortunately, they have access to the internet too.

    • @andrewlankford9634
      @andrewlankford9634 6 лет назад +2

      Wikipedia is better. Or a text book, MIT lecture for that matter.

    • @Macenzyee
      @Macenzyee 6 лет назад

      Research cellphone radiation
      Research cellphone tower radiation
      Research wireless/wifi radiation

    • @Macenzyee
      @Macenzyee 6 лет назад

      How narrow minded you people must be to believe there are no downsides to wireless tech........... pffff tbh gtfo fried zombie brains and your wireless tech

  • @shreyasathavale
    @shreyasathavale 6 лет назад +1

    Tom- one of the best videos presented by cwnp.Really gives a clear understanding of all the basics.

  • @villagevaliant
    @villagevaliant 8 месяцев назад

    When it comes to refraction: Generally how wide is a wave length ? You mentioned a filing cabinet 🗄️ while the display gives an example of a roof top ? Also what is the size difference between that of say 2.4 opposed to the 5ghz [ if you aren’t sure of exact dimension- Maybe you’d be able to say which is wider over the other (2.4 or 5). ]

  • @howardhiggins5059
    @howardhiggins5059 7 лет назад +1

    Great video Tom.

  • @aswath7
    @aswath7 5 лет назад

    very good video to start learning about wireless technologies basics

  • @PeteMaverickMitchell87
    @PeteMaverickMitchell87 8 лет назад +3

    Good video! Some of the discussion reminds me of EE courses taken long ago.

  • @andresrcqr
    @andresrcqr 7 лет назад

    Great Video explaining fundamentals

  • @clsmith619
    @clsmith619 6 лет назад +1

    Great refresher. Thank you.

  • @Stefan_Dragancev
    @Stefan_Dragancev 2 года назад

    Hello, what is controlling power output of the access point? Voltage or amperage? What increases or decreases the transmission power?

    • @Cinncinnatus
      @Cinncinnatus Год назад

      wattage.... ie was both... typically voltage is a fixed point due to hardware limitations (now...) so its mainly amperage but it very well can be both. but since almost no-one deals with HV amplifiers now its pretty much always amps now but you really dont even deal with that due to frequency based modulation not amplitude. and if we talking your home wifi set it to the lowest possible setting that still lets you get a signal without issues. eg. my home 2.4/5ghz wifi runs @ 1/4 watt vs the default of 1 watt

  • @juliandevilliers6435
    @juliandevilliers6435 5 лет назад

    Very informative, thank you for sharing

  • @jeffm2787
    @jeffm2787 4 года назад

    2.4 is alive and kicking, well at least for home and IOT related devices. Once you get out of the cities it becomes completely useable even for 4k streaming, etc. Use 5Ghz of course where possible.

  • @SK_TRS
    @SK_TRS 3 года назад

    Thank you, it was really informative.

  • @NassimDhaher
    @NassimDhaher 8 лет назад

    at 28:00 you say:"Interference happens at the receiver", but won't the sender receive the responses from the "receiver" as well and therefore become a receiver. Or you meant to say interference happens on reception of signal???

  • @rdalben
    @rdalben 2 года назад

    In a 4x3 AP, Is there a way to setup the client to connect not using 3x3 but 2x2 or 1x1 ?

  • @NetSecAcademy
    @NetSecAcademy 3 года назад

    Where can I get complete video training from this guy please ? So well explained

  • @zaidhussain5206
    @zaidhussain5206 7 лет назад

    Thank you for this video, really informative

  • @IamtotallyKJ
    @IamtotallyKJ 4 года назад +1

    Brilliant outstanding.

  • @kworgz
    @kworgz Год назад

    These are great, but if you add animation when explaining some of the concepts like interference etc. these videos would really take off

  • @Ruchip-2103
    @Ruchip-2103 7 лет назад +11

    It would have helped if you've used similar graph to 2.4GHz to describe the 5GHz so novice person like me can visualize the difference in comparison of two. Other than that it was a great video.

  • @tuantrungchauhoang6325
    @tuantrungchauhoang6325 3 года назад

    Trainning's voice sound like from Kevin Wallace , right?

  • @JessyP-u6q
    @JessyP-u6q 9 месяцев назад

    Red light scattering in many direction
    Absorption
    reflection
    refraction

  • @Cpripri85
    @Cpripri85 2 года назад

    If anyone reads this can they please direct me to radio frequency training for tower climbers I'm trying to find a review course online while I'm waiting for my own industry to provide me with the class for some reason I cannot find anything online

  • @swethareddy3465
    @swethareddy3465 7 лет назад

    What unique concerns must be addressed by the designer of a WLAN network?

  • @CruisinShady
    @CruisinShady 7 лет назад

    Good Info. Thanks for the video!

  • @SaiPawan012
    @SaiPawan012 8 лет назад +2

    What about Omnipeek in analysis of network?

  • @VishnuAi
    @VishnuAi 3 месяца назад

    Good job

  • @brianvandenberg4467
    @brianvandenberg4467 6 лет назад

    7:00 7:27 not .762 or .223 They did a good job didn't they....But you cant live on the spacestation #Fukushima js

  • @akhileshkumar-fu6of
    @akhileshkumar-fu6of 7 лет назад

    Excellent explanation sir
    But how to change 11 and 12 dbm in mw by your 3 and 10 technique

    • @JonathanWaltersDrDub
      @JonathanWaltersDrDub 7 лет назад +2

      The premise for that quick chart is that 10^(0.3) = 2 approxmiately. For increasing 1 dBm we would see that 10^(0.1)=1.25 so we would multiply the original power by 1.25 to increase its strength.

    • @georgecuclea7770
      @georgecuclea7770 5 лет назад

      11dBm = 20dBm-3dBm-3dBm-3dBm
      11dBm= 100mW/(2*2*2)=100mW/8=12.5mW
      and
      12dBm= 3dBm+3dBm+3dBm+3dBm
      12dBm=2mW*2mW*2mW*2mW=16mW

  • @iamdeadism
    @iamdeadism 8 лет назад

    Thank you. Good video!

  • @anwarulhoda7636
    @anwarulhoda7636 7 лет назад

    I know all of these things. Thank you

    • @prd9843
      @prd9843 6 лет назад

      then why the heck are you here? sshooo!! get the hell out!

  • @feliciab6050
    @feliciab6050 4 года назад

    Thank you Sir!!

  • @the_mze
    @the_mze 4 года назад

    Remember that when you watch this now, there is UNII-4 Channels aswell! (75 MHz additional!)

  • @Hazwan-ud7mz
    @Hazwan-ud7mz 4 года назад +1

    sorry...
    can you make subtitle in indonesian language in this video?

  • @marekz6656
    @marekz6656 5 лет назад +1

    Where are you rushing like that? Any consideration for listeners?

  • @villagevaliant
    @villagevaliant 8 месяцев назад

    I hear you 🤚🏾

  • @andrewlankford9634
    @andrewlankford9634 6 лет назад +1

    Wireless Lan Success (C) (TM) !

  • @abhijithboppe1870
    @abhijithboppe1870 5 лет назад

    what is rf duty cycle and how is it different from PWM duty cycle

  • @danielghani3903
    @danielghani3903 2 года назад

    thanks

  • @kiraal3619
    @kiraal3619 4 года назад

    thanks a lot

  • @vikrantvijit1436
    @vikrantvijit1436 3 года назад

    Wonderful teaching style of technical complex concepts on internet perhaps world best about the Radio Silent Art of beauty that kills beasty Sound of Science As a Signal at Attack Surfaces deep seated Spheres Influencing Work Life and death facing Issues.

  • @kmilo4307
    @kmilo4307 7 лет назад +3

    too fast for beginners

  • @ahmednor5806
    @ahmednor5806 2 года назад +2

    🙏🌹

  • @Hazwan-ud7mz
    @Hazwan-ud7mz 4 года назад

    this good video

  • @mithunt4455
    @mithunt4455 7 лет назад

    thank you

  • @Zephanyahh
    @Zephanyahh 3 года назад

    Brah, I have known this for years and they made a certificate for it??? What!?

  • @kimberlycoffey7395
    @kimberlycoffey7395 6 лет назад

    yup

  • @Stephanie-d7x
    @Stephanie-d7x Год назад

    I can hear 6ou

  • @LarkinAurora-h9i
    @LarkinAurora-h9i 2 месяца назад

    Hassie Islands

  • @onemorething100
    @onemorething100 3 года назад

    Can you honestly say that these bands are innocuous and pose no harm to human life?

  • @ahemednor5201
    @ahemednor5201 2 года назад

    🙏🙏🌹🌹

  • @georgen9755
    @georgen9755 Месяц назад

    Audible

  • @brianvandenberg4467
    @brianvandenberg4467 6 лет назад

    ISM Industrial Scientific Medical unlicensed Frequencies....What could go wrong...I want my Software and my Frequencies back...Stop using my tech to ping & exacerbate unstable situations....#Explain #Parkland #ColumbineMassacre #SandyHook You cant live on the Spacestation...we found #Solutions I want my Frequencies, Software, & Tech back @Outcomes_Matter

  • @rahnstoewhale7756
    @rahnstoewhale7756 6 лет назад

    hey

  • @uss-usaf-atlantis
    @uss-usaf-atlantis Год назад

    No wlan ... its wifi ...

  • @duanenickerson7055
    @duanenickerson7055 6 лет назад

    #WHAT

  • @hussydevids2384
    @hussydevids2384 3 года назад +1

    The wretched wilderness speculatively point because drama iteratively step up a enchanting latency. nappy, foamy cat

  • @BRYDN_NATHAN
    @BRYDN_NATHAN Год назад

    thank you