Dipole antennas are simple to construct and can be used in many applications. In this video I will show you how to construct a dipole antenna for the 2.4GHz …
Scanner Antenna from bent arrows… this 1/4 wave antenna does a decent job, almost pulled in NOAA sat’s imagery… mainly designed for 2 meters, aircraft, f…
Video Rating: 5 / 5
I really like this idea!
nice you also got stun arrow too Scanner Antenna is awesome making this are
nice job bro
awesome. the arrow looks like it landed on your antenna!
Agree brilliant craftsmanship
Like the GUI also
very cool bro – i don’t know how you come up with this stuff a very
creative genius and again like i always say – an encyclopeida of knowledge
– yes you bro haha – how do you know this stuff???? were you in the
military or what bro or am i just dumber than most people if everyone’s
doing this stuff – damn you’ve got patience too haha – but why do this
stuff haha – cool vids though (this kinds – gizmos etc)
What kind of computer program are you running with your scanner?
Can you use normal tv cable instead of the lmr cable?
These videos are very helpful. However, I can’t help noticing your
wavelengths deviate from theory. For example, 2.4ghz would be 125mm for a
whole wave, as opposed to the 100mm your diagram implies. Same goes for
your 5ghz video. What accounts for the discrepancy? Also, would it be
possible to design such an antenna with ~1cm gap such that it operates at
both frequencies simultaneously as wiki claims gaps of <λ/10 are negligible?
awesome…job
Hello,
Good job and good video !!!! thanks..
Would you be able to do the same dipole antenna for a frequency of 1.2 Ghz ?
And of course the video to explane how to do !!! 🙂
Greetings
Fran
Just made a similar antenna for my quadcopter that runs on the 2.4G band.
The antenna that came with it was 27mm, I cut it down to 25mm, I don’t know
why but, I got way more interference because of Wifi signals around here.
Also, there is a Celltower 500 meters, does that cause interference? I
swear, every time I’m 15 meters up in the air, and I seem to lose control
of whatever I’m flying.
nice tutorial can you dimensions for 1.2 and 5.8 frequencies thanks.
these would come in handy for the fpv fans.
WOW JUST WOW, I JUST CAN’T SAY ANYTHING ELSE BUT
wowowowowowoowowowowowowowow
Very thorough video!
I have a question though: What about really long antennas (like TP-LINK
ANT2415) that house lots of this half wavelength dipoles? Do the
manufacturers just repeat the same thing over and over again? Or is it
something else? Please, shade some light on this issue!
Well done, Mr.McNeil
I loved your Chromecast video (what brought me to your channel), and like
this one too.
The public needs more antenna design/implementation info.
Subscribed already :-)
good video man
is it possible to use this method to make a gsm antenna ?? and how
long/short should the antenna be at fex: 1800mhz or 2100mhz ??
Very helpfull and informative. Thanks for making these videos and sharing
your knowledge!
Could this be used on the wifi jammer as well? to add range? Or is it
pointless?
Absolutely wonderful videos, especially because of their simplicity.
However, could you kindly explain the reason for the 60 mm and 70 mm
lengths? I am trying to construct a similar antenna for 2100 MHz (for my
mobile GSM Broadband modem).
love it
Basic breakdown of length of the parts::
———–UUUU——[______]~~~~~~<<<<] [- 1 2 3 4 5 6 7 1 = 52.4 / 53mm 2 = 52.4 mm note: coil is both length and litz protection. 3 = 31mm 4 = 22mm note; mine is lead coated brass, stops rf reception at location 5 = who cares, this is the RF input 6 = ground plane, 3* diameter of 4, length not important 7 = SMA connector Does anyone know why 1 and 2 are the same length? Why the specific length?
Very nice informative video. I am very interested in you doing some white
board videos with the fundamentals. This is a topic that I feel could
benefit me greatly, as I install satellite systems for video and internet.
Great to have an easy DIY solution to resolve wifi coverage issues.
Nice video, as always.
And if You ever find the time to make some tutorial on the basics that
would be great :O)
WHY IS 1/4 Wavelenght of 2.4GHz equal to 25mmmm ??? … shopuldn’t it be a
quarter wavelenght of the WiFi band (I’ll consider 2.4GHz) the value
bellow of 31,25 mm ?
Sorry my ignorance in antenas.. the wavelenght is C/f <=>
300000000/2400000000 = 125mm for a full wave therefore a quarter sould be
125/4 = 31,25 mm
GREAT TUTORIAL BY THE WAY. CONGRATS!!!
Useful video. Is the ground plane really necessary? Some antennas I have
don’t appear to have that big thick black pigtail like yours.
Hi, I am a web Developer and dont know a damn thing about antennas …
though I have a wifi router and which has a very short range … I would
like to extend that range … and if I can guess right I can make this type
of Antenna and put it in place of current one and it should increase the
range for my WIFI … or does it work differently ???
Thanks …
HAVEING A LOADING COIL ACTULY GIVES BETTER RECEPTION OR I SHOULD SAY IT
GIVES BETTER SIGNEL
Where can i learn the knowledge to build antennas like this myself? where
did you learn?
Can you point me to an equation to calculate the antenna lengths? I am
interested in instruction on antenna theory – short course. Really
appreciate your videos!
What is the point of the metal thing you put over the tubing and soldered
to the braiding?