Hak5 - 1000mw WiFi txpower with a 16dBi Yagi Antenna
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- Опубліковано 28 лис 2011
- Hak5 -- Cyber Security Education, Inspiration, News & Community since 2005:
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This time on the show, Eighty of Dual Core returns for a little file recovery mojo using Scalpel. Then Jed Putterman of Pogoplug joins us to talk cloud storage. Plus can bash scripts monitor your CPU temperature? Radiating Paul-the-Camera-Guy's brain with a 16dBi Yagi antenna and transmitting WiFi over 500mw in the US, can it be done? All that and more this time on Hak5!
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Founded in 2005, Hak5's mission is to advance the InfoSec industry. We do this through our award winning educational podcasts, leading pentest gear, and inclusive community - where all hackers belong. - Розваги
I thought I was the only HAM watching this series. The old school guys are all about the rules. This hack is a victimless violation and would never come to the FCC's attention. More like this please!
+Jeff Southerland Not a Ham. Honestly, I think the FCC is over regulating something fairly benign. Rules exist for reasons, but they don't have to be reasonable. Like the Kinder Eggs :)
What type of tripod was used for your antenna? I just ordered this antenna and I'm having trouble finding the tripod and how to attach it to a tripod.
All the way from Belize !! Papa Bless !!
You sir are correct!
right that moment you started the easter egg, I was really looking at it...., and I was watching this for the first time
Whilst there's a limit for total irradiated power, and Darren's right when he sets it to just 500mW, it didn't address the second issue. Just like how my laser at home is a tiny tiny 50mW, compared to, say, a 60000mW (60W) incandescent bulb, the bulb sends that energy out in all directions, but the laser concentrates it onto a small area. The laser can burn through thin plastic at several metres, and the bulb wouldn't. This set up might not be a health risk- but it is important to check.
great episode. more informative, people should know that they have more control of their lives more than the government and IEEE but responsible enough to know and face the consequences. developing awareness and informing people are the first steps to make educated decisions. similar to not paying tax or jaywalking, agoing a little over the speed limit/ allowed limit of modulation, etc. everything we had power to do in the beginning, we werent born with regulation, but they help.
Good show
Also, what command would you use to change the power level?
Here in Europe the limit is 20dBm/100mW in 802.11g/n for 2.4GHz.
In Finland the limit, which is 100mW, is for a dipole antenna. When the antenna is a direction -antenna the power needs to be deamplified by the same amount as the directional antenna focuses the "beam" So if 100%(radiates 100% of 360 degrees) dipole antenna transmits 100mw, a directional antenna which focuses the beam to 5% of the dipole antenna's range can only transmit 5mW. Please do tell me if the regulation is more open in the US!
How did they adjust the 500 to 1000 on the 8187 wifi adapter ? is it possible to do that in Windows 7 (i'm assuming that was linux he was using, but i'm not sure)
That PAUL, Epic outtakes
Love pauls vandam face at the end lol
Some firearms do use clips. For example the M1 Garand and the SKS both use clips. A magazine is what holds the rounds in the firearm. A clip is used to load the magazine. Typically clips are used to load fixed magazines.
But you are correct. The person used the term clip incorrectly.
nice easter egg
Do you need the alfa cars, or can I use the Yagi directly to my laptop?
The sniper Wi-Fi-Le
Many manufactures exaggerate the gain of their antennas. So the ERP might not be as high as you think.
I ordered this Antenna but its stuck in customs for me should have it within the week and cant wait... but iv got a question ... it uses the SMA connection..... I also have a RTL-SDR dongle that is MXC, so the other Day i maneged to pick up a SMA Male to MXC male... my Idea is hook up the RTL-SDR to the yagi... would it work ??? ...
I already have a professional BNC Radio Antenna with adapter... but was just wondering would the Yagi work... you know save space in my kit insead of carrying mutiple antennas have one that does all
+FriendlySkull Also does someone have a list of the Country Codes and the Strengths ?? or what is the best Country Code to use (ie Highest Code) or is BZ/BO the best with the highest channel band.... (Just Wondering for Scientific Purposes) .... also with increasing the power into the device couldn't it damage the adapter???
At 5:07 does anyone know what command Darrin used to bring all that info up on the screen?
would anyone know what part of the radio spectrem in the UK is open to the public for example if i were to have a yagi antenna how much power would i be able to run though it without breaking Both EU and UK law thanks Hak5 ??
I had one of those China made yagi antennas. It did not work well. Stick with a manufacture that makes antennas for commercial use with real published specs on radiation pattern and SWR. It s also hard to know the real ERP because many manufactures exaggerate the gain of their antennas.
Literally the only comment on here with useful information.
I use a Yagi (though home-made and probably not that effective) to peer to my best friend's house. he has a yagi pointed to my place as well. (so we can talk to each other without the regular internet)
We are going way over the limits here, BUT because we have a directional antenna, they can't legally prohibit us to make the link. (here in the netherlands atleast)
MY MAN I AGREE
It's hard to explain SNR within 500 characters, but think of it in terms of say audio amplification. You may hear that someone is screaming into a megaphone a couple of blocks away, but their actual words may become distorted or unintelligible from echoes or other loud noises along the way.
Part 15.247 says (i) Systems operating in the 2400-
2483.5 MHz band that are used exclusively
for fixed, point-to-point operations
may employ transmitting antennas
with directional gain greater
than 6 dBi provided the maximum peak
output power of the intentional radiator
is reduced by 1 dB for every 3 dB
that the directional gain of the antenna
exceeds 6 dBi.
♪♫I be smokin trees in Belize when they find me♪♫
Can you please show a method for changing the country code in windows?? obviously i live in umm bolivia and i bought the thing from over seas and never would attach it to a 25 dbi antenna!
Hello, im really hoping someone can help me with this, i have a Dlink DIR-632 router and just bought a pair of 16dbi antennas for it. I cant figure out if this is safe, so if you can figure it out i would appreciate it. Thanks
I think some people overreact to FCC laws (OFCOM here in the Uk). The FCC usually don't drive around in vans looking for people with overpowered Wi-Fi or or any other frequencies. They simply don't have the money or time to do that. Usually what happens is a neighbour etc will complain to the FCC and then they will take a look into it.
official observers are a thing.
and about the email its not illegal if you use the antenna to get the signal u can put 15W and still legal. transmitting signals that's different mater
Your wifi transceiver might be well within the ERP limit. But when you add 16 dB of antenna gain...what the viewer is saying is you are now over the ERP limit when you combine the transceiver output plus the antenna's gain. While this is still a small amount of power and the antenna is rather directional you could still be interfering with other transmissions. You are most likely interferring with someone else's wireless telephone or wifi internet. Do a little research on harmonics...
sorry, its out of spec still... 500mW +16 dBi gain = 49.99 dB, anything over 36 is illegal (in the US). Not that I care. Mine is 1000mW + 25dBi =55 dB (Yagi 25dBi). mine gets a good 4 to 5 miles on a clear day.
Omg❤
Thats BS Darren... Yes its part 15 spec.. but if you run a part 15 with a larger antenna the combination is actually outside of your EIRP its still illegal.. Your running out of spec... Regardless of your units output, in combination with your antenna your outside of the illegal limit.....
The ERP of a 50 watt light bulb is 50 watts, no problem looking at that !
Would you look at a 50 watt laser no . He talking with out a complete knowledge of RF.
The Yagi focuses the RF in to a beam like a Laser.
This is the guy who takes the clip out of a gun and says look it safe now, and blows his friends head off , Oh i did not understand that there was one in the chamber!
Lol at Easteregg: Blah Blah Blah :D
@venxxxxx the microwave shuts off when you open it....
SHE THE BOMB
how will the track you out of the thousands of antennas transmitting ?
EASTER EGG!!!
ad ends @6:39
Paul The Fucking Camera Guy!!!
# Dear Shannon, You are like sooo gorgeous! (grrrowl! rubby thy!) #
Thank you everyone, i enjoy your videos.
Darren's Easter Egg XD
The dip shit with the CB was more then likely dead keying 75 watts and swinging a couple hundred on a 60 ft mast from across the street. As a licensed ham operator his licenses should have been pulled and equipment confiscated but they choose to do nothing.
Either way what he's doing with this rig isn't harmful in anyway especially since it's mostly only being used for the increased gain on the rx end and not tx.
I dont understand any of this. how come they sell 8 watt wifi boosters on amazon if we can only use up to 500mw's
Then you are not smart enough to use it lol
That was sarcasm, the 8w boosters on amazon are all extremely FAKE, that was the joke that you where not smart enough to get
Boosters from a nice brand or any DIY booster could indeed give 8 Watts, a shady chinese brand not. But I don't know what boosters are you talking about so if you say 8 Watts booster, I should believe it's a booster which gives 8 Watts. And yes, they could sell it.
Where what? WTH!
She's almost like my parents, all the times turn off wifi because they're trapped in thinking that it can cause em canceeer, but there are several networks in yard and even around our house, they dont take this argument seriously lmaoo
What a time capsule..
/*Who watching in 2022*/
I said he was a licensed ham, that doesn't mean he couldn't use a cb ALSO. The equipment you he was using illegal. Using ham radios to tx on CB, amped CB's, all of that should have caused him to lose his license. He was the guy to go to if you needed a radio modded, peak & tuned but no one on the block watch the evening news without him bleeding over.
If they didn't do anything about him why would they care about adding a high gain antenna to help sniff packets.
Do it any way.
"Darren has a personal organizer" LMAO!
Have fun with 500mw ! we in germany have only 100mw on 2,4 GHz and 200mw on 5 GHz !
Why?
What's he done in his terminal that I should er thank you for?
Totally serious question, i'm not trolling. I'm just a novice linux user at best, and an absolutely completely hot off the press noob when it come's to antenna's and whatnot.
I live in a very remote area with no towers for at least 20km, so I have to deal with fucking 1 bar on my phone when i'm OUTSIDE
But I want to learn and amplify my WiFi's range so that .... I can see more WiFi networks, hopefully er .. unsecured or WEP
06:39 Skip the Adds!
24.8w at 2.4.... thats more than enough to cause damage
IF YOU THINK FOR ONE MINUTE THEY CAN'T FIND YOU, YOUR WRONG THE GUY DOWN THE STREET GOT A 7,000.00 FINE FOR OVER POWER ON A RADIO, THEY LISTEN ALL THE TIME.
We are allowed a maximum of 4 Watts, 36dBm, total power (ERIP)
So, if ERIP (dBm) = radio power (dBm) + antenna gain (dBi)
Then, 36dBm (ERIP) - 16dBi (antenna gain) = 20 dBm (100mw)
Therefore you are only allowed to hook up a 100mw or 20 dBm radio to the 16dBi Yagi antenna (legally)
+1
SirSniperhead Are not people said for "Point to Point" fixed points you can go more ?!
Rule riders
No way that cheap china yagi is 16 dbi. The pigtail coax has poor shielding and actually radiates, which will cause signal loss and the antenna to not resonate at 2.4 GHz.
Nothing like promoting unsafe and illegal haks. I'd imagine that the small amount of power coming off that antenna will do no harm...but putting your eyes and head right into the minor lobe of the radiation pattern of an antenna? Great tips...
fcc regulatons for a device are always in context with the original antenna.
You attach a yagi with >20db gain vs dipole? youre out of regulations.
Besides folks, your cell phone probably uses more power - is much closer to your brain - is transmitting all day (also in stand by) ... no point in getting hysterical about wlan-yagis - especially, since theyre usually used to connect two remote buildings or so. No one puts that into the living room. regards, a ham from europe
Come on. 1 watt is gonna hurt no one.
If hes just a CB'r thats not ham.. You don't need a license for it..
and no.. what he did wasnt really harmful but regardless still illegal ( i dont give a shit that its illegal.. just saying it is )
I have my alpha hooked up to an 8w amplifier
Hi could you explain a bit more?
USB = 5V * 500mA = 2500mW.
# THIS IS AN EASTEREGG
News from the future... on 2018 MySpace is irrelevant and facebook is mining all our information. I'll no talk about youtubers and forced happiness.
Found the easteregg :p
Get a tech license and run your wifi routers at 1500 watts!
I don't understand why Darren produces all these half-assed shows anyway! Is it just a vanity thing where he's trying to impress everyone with a lot of flash? He never shows exactly what he's doing so we can follow along so it's all just a waste of time!
You're crazy, he never shows the whole screen so you can see what he typed. I've stopped it and still can't see anything!
13:58 AKG =P
Maybe they might 'catch you', ...by virtue of the fact that Government regulators can essentially slap you with a fine and you have to prove that you didn't do it. However, the fact is that if you are 'within reasonable limits' and or not broadcasting 24-7 and or not causing interference that will bother others, they have MUCH bigger fish to fry that could MUCH better legitimize their job then a residential tinkerer. Most of those guys only look for easy targets to legitimize their jobs.
its your shit do as you please.
skip to 04:12 , thank me later.
1000mW sounds really redundant, why not just say 1W O_o
less lame jokes, more information please.
nice girl
Thumbs up if you think it looks like Darren i snorting coke in the vid thumbnail.
my guess is some 80yo ham opt that rule crazy with nothing better to do thats why i dont want a ham license so i can here 50-100 yo talk about rules its sooo boring
tail -f /var/log/messages
Thumbs up if you saw the easteregg
This is an easter egg.
blah blah blah
I think she is going to duckface
Clear
use a proper operating system... switch channels (you may have intereferences on taht channel) etc etc.. promiscous mode.. ethereal scan.. find out ... and please, dont call yourself "hacker" ever..
Give me a break. Arbitrary laws made up by idiots with nothing better to do. He's running slightly above spec, it's not going to kill anyone. On the other hand my neighbor of 18 years growing up that had a linear hook to this CB that would cover half of our cable channels every time keyed almost landed him in the ER at the hands of my father. That was after several calls to the FCC got ignored.
Why is the actual item not tested out? It is just talking about the antenna.
Just to point out a little "experienced the hard way" info - those cheap Chinese-made yagi antennas sold for like $15 on eBay and Amazon - are not tuned correctly. They are further down the teens range of optimal performance, and can actually be connected to cell radio hardware to pickup cell band signals. Not well though.
When it comes to these cheap versions, dont waste the time or money. Tell your audience to pickup the Alfa 7dBi directional instead. It is MUCH, much better than those cheap yagis. I know the stereotype of Chinese being good at math and all, but to mess up the math THIS badly, and keep selling it... it just messed up. I suppose they do b/c it still picks up some 2.4 signals.
You should do a video on connecting WiFi amps to the Alfa-type units (or those w/ injection functionality), to show the difference of signal between using the Alfa alone, and then with the amplifier. Ive personally seen significant differences, and being that we discuss this type of thing.... it is a cheap way for users to gain tx/rx power without buying all these crazy types of antennas. B/c the antenna is not going to be as helpful, if it is being underpowered also.
could you link me to some amps please ?
Sorry it took so long- been busy and havent come on here iaw. Heres one I personally own a few of. Works great. It is 2.4Ghz- but you can find 5Ghz range on there too. Just search "WiFi amplifier" - I generally go w/ Sunhanz but there are other brands.
www.amazon.com/Sunhans-Sh-2000-Wireless-Repeater-Booster/dp/B00HJ1NQLS/ref=pd_sim_147_5?_encoding=UTF8&psc=1&refRID=TJ5TK5DT1ZGFYQG57JBC
Augus92 bf
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Augus92 bf or u can even do 2 antennas. I have 2 panels for mine but can swap to a tripod mounted yagi-cantenna (homemade) and a TP link metal mesh one (idr the dBi off hand i think like 20 something). U can getall sorts of creative w this.. N works AMAZING in Kali too.
_lh3.googleusercontent.com/ItDkzhcO_hGd7uiAO3niV8JEIKpoqMUxsTO7Zwo7pnqE6pMMqPYsewyA4jlkL3wd6yih4dlh2g_
Can even go w a tripod if youd like. I typically mount w Velcro tape so it can be removed n put back. Industrial strength. But yeah.. Making your own antennas allows you to get even crazier w setups. N u can tune to what u need rather than trying to find one online. Idr the name but search yagi cantenna... Its a British guy that does the videos. How to vids for making all sorts of antennas. Biquad, yagi, etc. The guy has test equipment too.. So u get to see exact ranges n whatnot as well. Bc many yagis from China r tuned too low.. Nearly cell freqency n they'r terrible w 2.4 n band.
_lh3.googleusercontent.com/bMNZ6Wu4aqJiFsSFRq0FgY5qkeH4lKgKsBf0Bs0DbqtNNrxIPUek4c2bOOSDBLiMDoDxu_9T_Q_
Your channel is terribly unhelpful.
she looks beautiful when she speaks Japanese !!!
More japanese from the chick ...
If you are so smart try making a video that makes sense. Otherwise stop trolling and get out of your Mom's basement and go get a job!