Helical Antenna 5.8GHz for FPV……the kitchen sieve version!
HTML-код
- Опубликовано: 7 сен 2024
- I came across this folding sieve recently and as soon as I saw it I knew I had to turn it into an antenna!
In the video I build a 14 turn helical antenna for 5.8GHz FPV but this could also be used as a reflector for many designs.
The helical calculator I used can be found here: jcoppens.com/an...
Here is a typical listing for the sieve on eBay: goo.gl/eeaJdf
Support me on Patreon: www.patreon.co...
My eBay store: www.ebay.co.uk...
Facebook group: / 1313077415524264
Email: andrewantennas@gmail.com
Excellent repurposed use of the flying saucer strainer! Your parabolic 5.8 is showing great Fpv bid for me on a high sensitivity vrx I have competing with a dual fr632. I used copper tape back folded and pressure sandwiched with neoprene to give a solid ground to alloy reflector. Thnx for the bids you must try a micro Fpv quad one day.
I seem to remember there was something like that back in the 70s,It was a salad shaker you would put the salad inside run it under the tap to wash it, then close it and shake of the excess water. Love the video`s Andrew keep them coming.
+john hill I think the one your describing is the one I remember when I was a kid.
Well said Andrew! Call them out on their scheme mate... They totally ignored the philosophy and ethics to help improve mankind. A good video thanks... As i saw that vegetable steamer holder, I took up the one in my kitchen and smiled. Great work!
FYI: the device is a steamer adaptor to put in a pot and with a little water beneath it's base which has three 2 inch legs, cooks the vegetables without them boiling around in the water, a good useful kitchen tool imho ...
Thanks Andy it was very informative ideal for portable ATV use best 73’s 2E0LGZ
Very nice video! Looks like a fun project too make.
Ни х себе!!! как выдвинул, я офигел!! я сначала подумал что это пластинки из железного конструктора))
To get your 11.8 wire-spacing more accurate, multiply 11.8 x 14 (turns) = 165.2 and drill two holes that far apart in the tube. wind on 14 turns threading the ends through the holes. It would then be possible to even-out your turns by eye and steel rule. A rubber bung from the local chemist/brew-shop can be jammed in the end then screwed to the reflector, with a splosh of epoxy to lock it.
Neat design. I just picked up one of these sieves for $1 at the Goodwill Store. Been wanting to try this out and see how performs compared to a PCB board solid copper ground plane.
jafinch78 x
I doubt very much that this would work like you think. For one thing, using a right hand circularly polarized helical antenna, when a transmitted signal is reflected, it becomes left hand circularly polarized negating the reception. Now if you put a LHCP instead of RHCP then it may help.
I always love these antenna you come up with
I think it might be something I was looking for :)
instead of just a pvc tube, make the center helix conical. you wont be able to close the strainer but it opens up a little more spectrum.
Many a career has been built upon a generally-accepted body of knowledge To admit to the validity of new information which contradicts that body of knowledge is to admit that the basis of one's career is faulty. It always amuses me when I hear someone state something as "objective, measurable" fact, when what they should say is "Based upon what we know thus far...."
The sieve looks to be made of stainless steel. Good workaround.
Sweet work my friend thank you very much....
Awesome. So how does it perform?
Great find and good idea for another use! The antenna I bet has a lot of gain, you also have some real good ideas along
with "common-sense" in order to put things together that are practical that work. Keep up the good work with ideas and
thanks for your ideas!
+Dennis Petersen Thanks Dennis I will do my best
The dish certainly makes the antenna look very "sci-fi", but does it do anything for the performance of the antenna as a whole? Have the antenna characteristics been measured and compared with one tat has a flat plate reflector?
My understanding is that any reflected signal will be circularly polarised, but in the other direction. However, that may be desirable in this case, as the reflections are are traveling long the spiral in the opposite direction. How do you test your antennae - by trial and error, or do you use instruments to measure impedance, SWR, etc?
Obrigado por compartilhar a calculadora helicoidal
Don't you need to sheild the top of the helical antenna to keep the polarisation in line
I don't have a lot of knowledge when it comes to fpv antennas but it just seems logical to me
Silver soldier.
You will need to use the brazing welding technique.
Very clever!Bravo Sir!
2.5 highly appreciated the explanation from you can you explain to frequency
and vistumbler
Great build, found my project for next week thanks :)
+Rich Lees (TubeRider) Glad it helped Rich
generally used for steaming not boiling
Have you considered making a 0.5-1mm series of groves to space the wire?
love your work! would it work to attach this helical antenna to a satellite dish? if so, how well do you think it would work for 5.8GHZ FPV? Thanks so much!
you are the man! love your antennas Andrew. do you have a video on etching copper clad pcb boards for your biquads?
Congrats on 25K subs!
+LaughingLogic (Adam) Thanks Laughing just got back from holiday and I noticed the subs on my phone I still can not believe how popular it has become
That is a good use for the colander, but does it work with a helical? My understanding is that a dish reflector effectively inverts the circular or linear polarity of the incoming signal to the element, therefore, the direct feed will be in the opposite polarity to what is reflected from the sieve surface, thus cancelling out any directional gain. It would work with a dipole or linear antenna, but again better with a screening reflector to block direct feed to the element, or possibly in the case of a helical by placing another reflector disk at the outer end to block direct feed and only accept reflected signals in whatever polarity is needed (wound opposite). Cheers, and thanks again for another great video.
Fantastic thinking outside the square Andrew, i imagine Mum`s all over will be scratching their heads wondering why the kitchen utensils are disappearing... lol love your work Sir!! And come to think about it this Helical looks remarkably like the Satellite antenna`s in orbit, they fold and unfold in a similar way, hmm maybe that`s where NASA got it`s idea from.
+rwquad Thanks Rwquad I found some information recently where NASA employed the skills of a guy who was an expert in origami to help pack folding antennas into a payload.
They sell them on ebay Andrew. The link above is broke. Nice video m8.
Excellent antenna would it be possible to make a 2.4ghz version?
why didn't you cut out the center and replace the metal and uses screws to attach it together
As allways great videos! I have a wish:) Could you make a 5.8 pepperbox with tutorial?:D It would be greatly appreciated!!
+nutrox84 Hi I did about 4 videos back
Oh, great! Must have missed it!:) again, thanks!:)
andrew mcneil
I hope you know, that if you use reflector, so if on the TX side is RHCP antenna, you have to use LHCP antenna on the RX side?
is there a way I can use an old dish network dish to boost my cellular phone signal?
I have one.
This is a Korean kitchen sieve.
No its not it is a helical antenna for 5.8 Ghz 😁 Thanks for the info
Would you review or make some 433MHz antennas? There are 433MHz wireless modules available for Arduino and Raspberry Pi projects. It would be nice to get a better understanding of not only increasing but also limiting range.
+Rav Gupta Your not the first person to ask Rav I hope to in the future
Very waiting!! :)
Andrew, I did request some input for a telco 3G ariel to rural location in good spirits - you must have missed it/ delete it in error - so no need to be rude
well, great video and I'm gonna build one, just becouse there's wasn't any test on it!!! how does it perform? I have a great reflector dish on my roof i might aswell use that ;)
Great vid, and useful here,for I have one of these antiques, I have made a bi-quad antenna for it. My question is, I see vids where ground coaxial is also attached to the active element as well as center conducter??? This seems wrong, so should I ground to the parabolic colander??
Answered it on my own , watched another vid of yours, seeing the ground soldered on opposite bend, I will post a vid of finished colander, (didn't video making it) I was quite surprised at the range, I'm getting 99% from 3 blocks away, varying 75- 100meg at the 802.111 board
Hi, how much is the gain of the antenna and how many kilometers or meters the signal arrives?
Thanks for sharing the links on helical calculator
What was the gain of each antenna you made?
Great Job. Did you test this on real conditions ?
hypnotic
Anyone got a working link to this ?
Why does your design only have 14 turns when the online calculator suggest 26 turns for the 5800 MHz frequency?
The amount of turns has nothing to do with frequency the number of turns are related to gain
tried brass brazing to weld it?
Hi sir does this work good as wifi long range antenna ?
RE: WiFI antennas. I'm missing something. How does connecting an antenna to the USB port get to the WiFi Amp? Furthermore, Antennas connected using ethernet or USB cable would have much loss compared to RG-8 foam or coax. I've built my own HF Ant Measurement receivers and have done many HF ant gain measurements yrs ago. WU2J Byron
+Pigeon Fancier Sorry I don't understand what you mean how can you connect an antenna to a usb port? Do you mean a usb wifi adapter?
I figured out the answer, Andrew, it was a dumb question. Looks like i can use ur quad Yagi with short semi rigid to wifi USB adapter (digitazzworld) and run USB extension cable down from outside support to computer.
@@mrnovember777 you should be able to as long as the helical is meant for the same frequency as of the wifi adapter ghz frequency.
Dedicated to nana
Muito bom !!
have you used this for WiFi? How much dBi gain are you getting from this thing?
but how good is it?>?
How I can build a panel solely go technology
my kid is making one
Hi
Andrew I put a stainless steel bowl as a wind surfer on to a 2.4/5.8 dipole antenna and the antenna started to melt at just above the base. I insulated the bowl from the antenna. what are you thoughts on that.
www.phantompilots.com/threads/what-is-inside-a-dipole-2-4-5-8-ghz-antenna.79157/
Did it work?
Agent Bertram no
Ay Mate, can I use this wee device to cook with at the same time? (Hate to waste a good sieve.)
nice freaking antenna you doing excellent job but you need to stop talking so much you don't have to explain every little detail what I take that back maybe you do there are people out there that just don't get it you're doing in excellent job keep it up I'm going to build me one of those I only need to pick up a signal from about 700 feet away thanks for the idea
Why are you using 5.8GHz? You always seem to forget what is your purpose and use in these videos?
Hm you can’t eat your vegetables with it .
To bad it wont work........
For a start it wont work for the simple reason the whole physics are wrong of what he is showing. LOL You had the balls to say I'm Jealous of a crappy item that does not work....... If it does at all not very well then. sorry to tell ya kido but I'm not poor enough to need to make a antenna out of a vegetable strainer like you LOL I'll pay the 18$ from amazon before would even bother with this..........
Wow you mad! LOL I made this kid go into a nerd rage... I'm not even going to bother wasting my time with a guy that spends over 5000 hours every 6 months on youtube trolling 1783 videos every 3 months..... Your profile just makes me sad when see that. You are a very very sad little man. I pray you find a friend and get help with your depressingly sad life. I will pray for you!
Ps you said I troll youtube LOLZ! your one that lives on here..... I spent 7.9 hours watching videos in 6 months. How can that even compare to the 5102 hours you spent? seek help man!
a uh
Ни что не понял, ни размеров -просто понты какая крутая антенна! Ни обзора как ловит как передаёт...
:-)))
stop saying "SO"!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
so stop watching !!!!!!!!!!!!!!!!
Sir you talking long time.shortly demastation.please.
more blah! blah! less demo boring huh!,,,,