Five Fundamentals of RF You Must Know for WLAN Success

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CWNPTV

CWNPTV

День тому

Understand the basics of RF so that you can better design and implement WLANs. This is a foundations level webinar and is great for CWTS and CWNA candidates and anyone newer to Wi-Fi.

КОМЕНТАРІ: 87
@junwuluo1231
@junwuluo1231 6 років тому
It really starts at 4:11, just skip and save yourself 4 minutes. and set speed to 1.5.
@_tabot9268
@_tabot9268 4 роки тому
Think you bro ¶
@craig893
@craig893 2 роки тому
Exactly what i did.
@Wadmd
@Wadmd 2 роки тому
Nice
@user-ec4hz2ft6h
@user-ec4hz2ft6h 3 місяці тому
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 ❤
@chimeranzl9147
@chimeranzl9147 6 років тому
Save yourself some time, jump to 4:20. Brilliant overview.
@PeteMaverickMitchell87
@PeteMaverickMitchell87 8 років тому
Good video! Some of the discussion reminds me of EE courses taken long ago.
@shreyasathavale
@shreyasathavale 5 років тому
Tom- one of the best videos presented by cwnp.Really gives a clear understanding of all the basics.
@andresrcqr
@andresrcqr 6 років тому
Great Video explaining fundamentals
@howardhiggins5059
@howardhiggins5059 7 років тому
Great video Tom.
@clsmith619
@clsmith619 6 років тому
Great refresher. Thank you.
@juliandevilliers6435
@juliandevilliers6435 5 років тому
Very informative, thank you for sharing
@zaidhussain5206
@zaidhussain5206 6 років тому
Thank you for this video, really informative
@CruisinShady
@CruisinShady 6 років тому
Good Info. Thanks for the video!
@aswath7
@aswath7 5 років тому
very good video to start learning about wireless technologies basics
@iamdeadism
@iamdeadism 7 років тому
Thank you. Good video!
@NetSecAcademy
@NetSecAcademy 3 роки тому
Where can I get complete video training from this guy please ? So well explained
@joelpanettaonline
@joelpanettaonline 6 років тому
How the heck can 19 people give this a thumbs down?????? Tom & CWNP are the best out there at explaining this stuff.
@tomwold7288
@tomwold7288 6 років тому
Joel Panetta Online Simple why there are 19 thumbs down. 19 idiots = 19 thumbs down.
@sbyrum
@sbyrum 6 років тому
Keep in mind there are people that actually believe that earth is flat. unfortunately, they have access to the internet too.
@andrewlankford9634
@andrewlankford9634 6 років тому
Wikipedia is better. Or a text book, MIT lecture for that matter.
@CsFanatiker
@CsFanatiker 6 років тому
Research cellphone radiation Research cellphone tower radiation Research wireless/wifi radiation
@CsFanatiker
@CsFanatiker 6 років тому
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
@SK_TRS
@SK_TRS 3 роки тому
Thank you, it was really informative.
@MegaUtuser
@MegaUtuser 4 роки тому
Brilliant outstanding.
@feliciab6050
@feliciab6050 3 роки тому
Thank you Sir!!
@mithunt4455
@mithunt4455 6 років тому
thank you
@anwarulhoda7636
@anwarulhoda7636 6 років тому
I know all of these things. Thank you
@prd9843
@prd9843 5 років тому
then why the heck are you here? sshooo!! get the hell out!
@kiraal3619
@kiraal3619 3 роки тому
thanks a lot
@NassimDhaher
@NassimDhaher 7 років тому
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???
@thepokergrind
@thepokergrind 7 років тому
7:43 : wavelength is a distance expressed in meters, and the period is in seconds (how many cycles in a seconds = n hertz). They seem mixed up in their definitions.
@Cinncinnatus
@Cinncinnatus Рік тому
props... someone knowing their stuff. most ppl if you said 80m or 10m etc they wouldnt even have a clue.
@swethareddy3465
@swethareddy3465 7 років тому
What unique concerns must be addressed by the designer of a WLAN network?
@villagevaliant
@villagevaliant Місяць тому
I hear you 🤚🏾
@villagevaliant
@villagevaliant Місяць тому
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). ]
@rdalben
@rdalben 2 роки тому
In a 4x3 AP, Is there a way to setup the client to connect not using 3x3 but 2x2 or 1x1 ?
@Hazwan-ud7mz
@Hazwan-ud7mz 4 роки тому
this good video
@ruchitaahluwalia9695
@ruchitaahluwalia9695 6 років тому
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.
@kworgz
@kworgz 6 місяців тому
These are great, but if you add animation when explaining some of the concepts like interference etc. these videos would really take off
@jeffm2787
@jeffm2787 3 роки тому
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.
@user-hm2gb6pm6b
@user-hm2gb6pm6b Місяць тому
Red light scattering in many direction Absorption reflection refraction
@akhileshkumar-fu6of
@akhileshkumar-fu6of 6 років тому
Excellent explanation sir But how to change 11 and 12 dbm in mw by your 3 and 10 technique
@JonathanWaltersDrDub
@JonathanWaltersDrDub 6 років тому
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 4 роки тому
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
@the_mze
@the_mze 4 роки тому
Remember that when you watch this now, there is UNII-4 Channels aswell! (75 MHz additional!)
@danielghani3903
@danielghani3903 Рік тому
thanks
@tuantrungchauhoang6325
@tuantrungchauhoang6325 2 роки тому
Trainning's voice sound like from Kevin Wallace , right?
@andrewlankford9634
@andrewlankford9634 6 років тому
Wireless Lan Success (C) (TM) !
@spiderx01
@spiderx01 2 роки тому
Hello, what is controlling power output of the access point? Voltage or amperage? What increases or decreases the transmission power?
@Cinncinnatus
@Cinncinnatus Рік тому
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
@SaiPawan012
@SaiPawan012 8 років тому
What about Omnipeek in analysis of network?
@Rudebwoy22
@Rudebwoy22 7 років тому
How r u pawan
@kimberlycoffey7395
@kimberlycoffey7395 6 років тому
yup
@Cpripri85
@Cpripri85 Рік тому
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
@marekz6656
@marekz6656 5 років тому
Where are you rushing like that? Any consideration for listeners?
@ahmednor5806
@ahmednor5806 2 роки тому
🙏🌹
@vikrantvijit1436
@vikrantvijit1436 3 роки тому
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.
@brianvandenberg4467
@brianvandenberg4467 6 років тому
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
@Zephanyahh
@Zephanyahh 3 роки тому
Brah, I have known this for years and they made a certificate for it??? What!?
@abhijithboppe1870
@abhijithboppe1870 5 років тому
what is rf duty cycle and how is it different from PWM duty cycle
@ahemednor5201
@ahemednor5201 Рік тому
🙏🙏🌹🌹
@Hazwan-ud7mz
@Hazwan-ud7mz 4 роки тому
sorry... can you make subtitle in indonesian language in this video?
@hazwanthesolutions6320
@hazwanthesolutions6320 4 роки тому
@@cupcupcup1802 wkwk i didn't need it again
@jerkshop
@jerkshop 4 роки тому
Hello is 80 and 160 recommended today for 5ghz
@RBzee112
@RBzee112 4 роки тому
No
@IvoBiermans
@IvoBiermans 3 роки тому
For home use you could get away with 80. For a business I would stick with 20, or if it's low density 40.
@kmilo4307
@kmilo4307 7 років тому
too fast for beginners
@user-kn6sz8hx1n
@user-kn6sz8hx1n 4 місяці тому
I can hear 6ou
@rahnstoewhale7756
@rahnstoewhale7756 6 років тому
hey
@duanenickerson7055
@duanenickerson7055 6 років тому
#WHAT
@onemorething100
@onemorething100 2 роки тому
Can you honestly say that these bands are innocuous and pose no harm to human life?
@uss-usaf-atlantis
@uss-usaf-atlantis 9 місяців тому
No wlan ... its wifi ...
@brianvandenberg4467
@brianvandenberg4467 6 років тому
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
@hussydevids2384
@hussydevids2384 3 роки тому
The wretched wilderness speculatively point because drama iteratively step up a enchanting latency. nappy, foamy cat
@BRYDN_NATHAN
@BRYDN_NATHAN 8 місяців тому
thank you
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