Hi Hoverbot, Thanks for watching. The diameter (cross width on the written guide) of the helical copper round is 0.621 in (15.77 mm)- derived from this equation on the written guide- 3600/f in MHz where f= 5800 MHz (5.8 GHz). Spacing between coils is exactly 0.5 in (12.70 mm)- derived from this equation on the written guide- 2900/f in MHz where f=5800 MHz (5.8 GHz) The dimension can also be measured on the template (top right), which is to dimension. UAVWorks
Hi Cement, No, it is not necessary to use double sided copper clad, but the reflector part (copper clad side) should be as close to the helical as possible and that's why i choose to use double sided. Otherwise, the copper clad side would be 1/16'' further away from the helical since there's G10 in between. Not that big of a deal but I just use double sided because it doesn't cost much more than single sided anyway. UAVWorks
I believe the circular polarization works the same as the "clover leaf" antennas. If your wrapped wire curves up from the left bottom to top right on the close side, it is Right Hand Circular Polarized (RHCP). The close side would go like a forward slash ( / ) Note: I haven't built one yet but I have been reading lots about this.
Hi, I can make a CAD drawing if there is enough interest. For now, I would just tell you to refer to my prebuild video where I mention briefly how to apply the equations on the written guide to different frequencies- which is how you can make your own template. Thanks for watching, UAVWorks
hello again just wanted to say a big thanks video was awsome and very help full took me about 15miniutes or maybe even less to make it turned out great im gunna make multiple ones and maybe even sell these have all the stuff laying around the yard and house it works greaaaat thanks alot keep up the great work bro i might try and spread your channel around very pleased thanks
thanks for the fast reply... I get the need to have the copper as close as possible to the coil, but i see you have the shielding of the coax soldered to the copper on the back of the reflector, not the front... so its a bit farther away (1/16") then the copper on the front of the reflector... its much cleaner with it soldered to the back... just not as close... am I correct??
Does wrapping the wire from "right to left or Left to right determine if these are "right hand or left hand" like the "Clover leaf , and skew planar wheel" ? Does it matter ?.
Hey! I'm glad it helped- this antenna is so great for FPV because it has such forgiving dimensional tolerances and works very well. Thanks for watching. UAVWorks
whats every ones thoughts on when using double sided copper clad to bridge the the 2 sides.... making both side of the of the reflector active??... thoughts??
I cant put the link in but if you use an antenna with Right Hand Circular Polarization (RHCP) with a Left hand one, you end up with massive drop in signal strength, so be careful! If you were to use one circular Polarized and one Linear Polarised (the generic antenna) you only lose about 3DBi so it would be a safer bet. More info is available if you search for IBCrazy "Build your own TX antenna for FPV" on the RCgroups website
reading some of the comments I can see why they need a hobby as they realy need to chill out a bit with the pedantics about who said what and if you used a medium to talk to them!lets just learn from someone who has taken the time to tell us what they understand about what we want to understand OK....cheers UAVWorks I like your work and your productions,keep it up thanks Fly safe Fly Hard Fly Heaps jcinAUZ
How about you make the refelctor plate and the antenna guide available for sale...the actual copper wire would be easy to purchase and then put antenna togther with your template.
could you explain to me how copper thickness affects the signal? ive made many different cloverleaf antennas. running with a 600mw transmitter. i got over 3km with 1mm copper. but when using 0.5mm i got only around 1.2km before loosing signal. i would really like to know
You forgot the impedance matching accessories guys! Also you are soldering the mesh of coaxial cable on the wrong side of the reflector! Does anyone has good results with this build?
WHY DO I HAVE TO DOWNLOAD SOME OTHER PROGRAM TO GET THIS FILE? CAN'T YOU MAKE IT A PDF? I DON'T WANT WHAT EVER IT IS ON THAT SITE. I JUST WANT THE TEMPLATE!
can you please provide me with 900MHz template Also the mannual calculations or the calculation done by online helical antenna calculators give a bit different values of diameter spacing etc ,it is different from the one given in rc groups why is the difference there can u please explain
I'm not making fun. Just helping you as you help me. 10awg , size 10, American Wire Guage. Meaning the size of the wire. Awg is not a word. It's A, W, G.
as with so many vid's, i would like to click 'like', but the screen is so cluttered with requests for me to feel a certain way (like) and to see things other than what i'm trying to watch, i just can't.
The original inventor of this antenna died in 2004 and was called Dr. John D. Kraus. So, how do you speak with him? Wavetrap match was presented by Joe Cadwallader in 1981. Better to read some more before making false statements, just saying. Nice video btw. Cheers.
10 awg is the size of the wire AWG is the guage of the wire normaly the higher the awg number the smaller the wire is eg 16awg is smaller than 10awg if you google:- "awg size of wire" there are lists of how big the different guages of wire are and also the general amps they can take through them.
Jeeze, if you're going to talk about things electrical and try to present yourself as knowledgeable at least learn what AWG stands for. AWG=gauge after dropping the two preceding words.
Hi Hoverbot,
Thanks for watching. The diameter (cross width on the written guide) of the helical copper round is 0.621 in (15.77 mm)- derived from this equation on the written guide- 3600/f in MHz where f= 5800 MHz (5.8 GHz).
Spacing between coils is exactly 0.5 in (12.70 mm)- derived from this equation on the written guide- 2900/f in MHz where f=5800 MHz (5.8 GHz)
The dimension can also be measured on the template (top right), which is to dimension.
UAVWorks
Hi Cement,
No, it is not necessary to use double sided copper clad, but the reflector part (copper clad side) should be as close to the helical as possible and that's why i choose to use double sided. Otherwise, the copper clad side would be 1/16'' further away from the helical since there's G10 in between. Not that big of a deal but I just use double sided because it doesn't cost much more than single sided anyway.
UAVWorks
I believe the circular polarization works the same as the "clover leaf" antennas. If your wrapped wire curves up from the left bottom to top right on the close side, it is Right Hand Circular Polarized (RHCP).
The close side would go like a forward slash ( / )
Note: I haven't built one yet but I have been reading lots about this.
Hi,
I can make a CAD drawing if there is enough interest. For now, I would just tell you to refer to my prebuild video where I mention briefly how to apply the equations on the written guide to different frequencies- which is how you can make your own template.
Thanks for watching,
UAVWorks
hello again just wanted to say a big thanks video was awsome and very help full took me about 15miniutes or maybe even less to make it turned out great im gunna make multiple ones and maybe even sell these have all the stuff laying around the yard and house it works greaaaat thanks alot keep up the great work bro i might try and spread your channel around very pleased thanks
You have done a good job! Can you please provide me the template for helical antenna for the working frequency 1.42 GHz
thanks for the fast reply... I get the need to have the copper as close as possible to the coil, but i see you have the shielding of the coax soldered to the copper on the back of the reflector, not the front... so its a bit farther away (1/16") then the copper on the front of the reflector... its much cleaner with it soldered to the back... just not as close... am I correct??
Does wrapping the wire from "right to left or Left to right determine if these are "right hand or left hand" like the "Clover leaf , and skew planar wheel" ?
Does it matter ?.
does 2-sided copper clad PCB need to be used since the shielding is only being soldered to one side....
Hey! I'm glad it helped- this antenna is so great for FPV because it has such forgiving dimensional tolerances and works very well. Thanks for watching.
UAVWorks
What is the diameter and space between the coil strands? Great vid series,
Would you be able to publish that template doc somewhere on the web? Like at Google docs or something.
whats every ones thoughts on when using double sided copper clad to bridge the the 2 sides.... making both side of the of the reflector active??... thoughts??
I cant put the link in but if you use an antenna with Right Hand Circular Polarization (RHCP) with a Left hand one, you end up with massive drop in signal strength, so be careful! If you were to use one circular Polarized and one Linear Polarised (the generic antenna) you only lose about 3DBi so it would be a safer bet.
More info is available if you search for IBCrazy "Build your own TX antenna for FPV" on the RCgroups website
great tutorial..
what is the diameter of the copper without the insulation ?
Will you share the template for the coil support you made using a CNC machine? I'd like to make one out of plexi glass using a Dremel tool
is that wooden tube has the same size with the regular toilet plunger?
What diameter and spacing would be needed for a 900 MHz helical?
Thanks for the help...
reading some of the comments I can see why they need a hobby as they realy need to chill out a bit with the pedantics about who said what and if you used a medium to talk to them!lets just learn from someone who has taken the time to tell us what they understand about what we want to understand OK....cheers UAVWorks I like your work and your productions,keep it up thanks
Fly safe Fly Hard Fly Heaps
jcinAUZ
The one stop. This email and
Sorry- It was the wrong version of the template. I just fixed the download.
Thanks for the feedback,
UAVWorks
How about you make the refelctor plate and the antenna guide available for sale...the actual copper wire would be easy to purchase and then put antenna togther with your template.
Do you have the vector of the antenna holder you CNCed?
Is there a difference with RHCP and LHCP helical antenna. I have a LHCP cloverleaf antenna and cant seem to see which this is..? Thanks!
where's the link to the printed pattern? how can we make this without the template.
How can i get the template document? I tried to download it but was unable. Could you email to me please?
could you explain to me how copper thickness affects the signal?
ive made many different cloverleaf antennas. running with a 600mw transmitter. i got over 3km with 1mm copper. but when using 0.5mm i got only around 1.2km before loosing signal. i would really like to know
The thinner the wire the sharper the antenna is tuned. The broader tuning of thicker wire helps cover construction mistakes.
good stuff,How can i get template for a 1.2ghz Helical
Great video. Do you have templates for 1.5 GHz ???
You forgot the impedance matching accessories guys! Also you are soldering the mesh of coaxial cable on the wrong side of the reflector! Does anyone has good results with this build?
A mirrored version of the template for LHCP would be very handy....
turn the wound coil the other way, instant LHCP
Hilarious suggestion. If only it were true :)
How does the turns of the helical affects the gain?
What's the gain of this antenna? Thanks
Correct, the double sided also just looks nicer to me... It's up to you.
WHY DO I HAVE TO DOWNLOAD SOME OTHER PROGRAM TO GET THIS FILE? CAN'T YOU MAKE IT A PDF?
I DON'T WANT WHAT EVER IT IS ON THAT SITE. I JUST WANT THE TEMPLATE!
Thank you for sharing this detailed ”how to”
how precise does this have to be?
can you please provide me with 900MHz template
Also the mannual calculations or the calculation done by online helical antenna calculators give a bit different values of diameter spacing etc ,it is different from the one given in rc groups why is the difference there can u please explain
i already have wire twice that thickness can i just use that? thanks
Is it posible to use a soup can lid for the reflector plate?
DanTheMan_FPV as long as its metal yes. You may want to be able to solder to it though.
I tried it, and I dont wanna say anything else at this point, for copyright reasons.
Where's the link?
Is this design in axial mode or normal mode?
i cant find your exact templete
Yeah I don't want that "ilivid" crap on my computer. Is there any other way I can get JUST the template?
Can i have a cad drawing, for a 1,2Ghz Helical?
Thanks UAVWorks, keep up the good work !
Need to reupload again?
Could you release template for 1.3G and 900MHz
HE did, its in his annotations below the title.
can you make an helical coil for 900 mhz ?
That would be great if you could do 900 mHz
No template file. Link is no bueno
If you don't click anything and just wait, the download begins.
I'm not making fun. Just helping you as you help me. 10awg , size 10, American Wire Guage. Meaning the size of the wire. Awg is not a word. It's A, W, G.
I believe in paying it forward as well, so...it is Gauge, not Guage. I might be making a little bit of fun.
+Tim Weaver darn voice text. Lol.
1.2/1.3ghz helical plans would be good
Reuploaded!
UAVWorks
good work
as with so many vid's, i would like to click 'like', but the screen is so cluttered with requests for me to feel a certain way (like) and to see things other than what i'm trying to watch, i just can't.
The original inventor of this antenna died in 2004 and was called Dr. John D. Kraus.
So, how do you speak with him?
Wavetrap match was presented by Joe Cadwallader in 1981.
Better to read some more before making false statements, just saying.
Nice video btw.
Cheers.
Nice job explaining thanks :) great tips :) gtu :)
nice.
+1 For the 1.2ghz Helical!
Liked.
Are you building the space shuttle or a peice of wire.. Wow what a load of codswallop... 4 parts to explain what anyone else in one picture could.
thanks thanks thanks !
wave trap is the thing you can't just throw away, dude
and it's not hard to do
wtf is "ten og"?
10 awg is the size of the wire AWG is the guage of the wire normaly the higher the awg number the smaller the wire is eg 16awg is smaller than 10awg if you google:- "awg size of wire" there are lists of how big the different guages of wire are and also the general amps they can take through them.
Bladerunnerinauz thanks dude :)
Most people would just say 10 guage :P
dellagd that would make much more sense :P
1mz helical antenna
Ok thanks man
subscribed
1280Ghz
1280Mhz :)
Jeeze, if you're going to talk about things electrical and try to present yourself as knowledgeable at least learn what AWG stands for. AWG=gauge after dropping the two preceding words.