5$ FPV Helical Antennas | 5.8ghz Long Range | Cheap DIY Antennas

[@GiantAntCowboy]

Excellent the Pasta Sauce Helical! Thanks for the shoutout, Cheers bud.

[@RandoManFPV]

So the yellow part that holds the coil is just structural to protect the coil right? Does it interfere with the coils signal at all? Like even the tiniest most negligible amount?

[@someoneontheinternetuvenev6268]

its plastic, non conductive. Very low infill also. I would think not at all.

[@cupidjrrobianto]

need high pole and long cable to put antena.. for long range in groud

[@tomazas2]

Where can you find that type of hard cable sma male to sma male? Great idea to make two antenna cables too!

[@vitotonello261]

how did you choose the general shape of the helical antenna? I'm not quite sure which online calc does the math right...

[@theorangebaron1595]

I just used some 3d printed formers from thingiverse. The designer already calculated the correct helical spacing for the 5.8 frequency.

[@vitotonello261]

@@theorangebaron1595 thanks :)

[@danforsyth4608]

Does the plastic parts of this device serve a porpoise or can i make it give me some better signal by doing everything you did except the 3d printed stuff like use stuff i have laying around or does the 3d parts have to be there to get anything all?😅

[@sashgorokhov]

Why you did not use wave trap?

[@theorangebaron1595]

I’m not sure what you mean. I understand that only the coil and reflector are needed for this style of antenna

[@m3g4byte]

Impedance is well above 50 ohms without some kind of matching stub or wave trap. Also you’re using a linear antenna on the tx so you’d probably be better off with a yagi instead of a helical. Good to see it working though.

[@RandoManFPV]

​​​@@m3g4byteyou seem to be very knowledgeable on this. I know literally nothing 😅 I'm trying to cheap my way into a ground station for long range fpv. But I've got true rc x2air patches(2 and 2 omnis on dji goggles v2) so maybe trying to build something like this will only result in very minor gains.. like I said I don't know anything.. Oh I just seen this guy is using a rc truck, I'm trying to use a 5inch drone. Oh now he's using a drone too lol 😅

[@m3g4byte]

It will still work good in spite of impedance, next step maybe make a clover leaf on the transmitting side and you will have a great setup!

[@berkay1cetiner]

@@m3g4byte Hi, I am planning to use a radar system which sends radar waves to an object in a room through wall and gets the reflected wave back. Which antenna topology you think I should use for this purpose? I was planning to make a DIY helical one for the receiver but now I'm not sure, because you also mentioned yagi. I will try to match 50 ohms and it will be working on 2.4 GHz

[@Gigadrain-gw2zl]

Make Yagi antenna 📡📶 please ❤

[@UA_RC]

No matching crct...

[@raibuzatto9565]

Share your .stl dudee ❤