Log Periodic 2 4GHz 11 6dBi

[@eknaap8800]

It's great that you tried to make the LogPer from printed circuitboard, as suggested in the comments. This is truly experimental science at his best! Good for you! 73 PD0PSX the Netherlands.

[@ecotech4148]

Thank you for al this vides.

[@jmanjulian]

The picture in the calculator (and other google images of LPDA antennas) point that the feed point of this antenna is the front. You however are feeding it from the back side. Is there a reason you are doing it this way? Doesn't it have a negative effect to change the feed point?

[@adistef]

I am using Yagi Calculator by John Drew; i made a couple of them for 2.4 Ghz: long ones, short ones, metal boom, plastic boom and they worked great; please tell me what you think about Mr . Drew software, becasue his calculations were a little different compared to other ones I found online.

[@thesmartass57]

20 years in the field and all my LP where end-fed !!

[@an8953]

Love your work 👍👍👍

[@Vigilence]

That's some sexy soldering closeups thank you :D Another awesome video!

[@netpixels]

interresting video, thanks for sharing. One thing which would be very interesting to me and surely many others would be a comparison in terms of performance of this build vs. the Bi-Quad you built previously. It's difficult for me at least to fully understand the actual pros/cons of each build in terms of how they preform in short distances, long distances including actual aprox beam width signal quality/drop-off points. Would you mind providing a bit of clarity along these lines? Again, thanks for sharing all your helpful build videos!

[@andrewmcneil]

+Christian Hochfilzer Hi Christian I am planing on filming a test over some distance as well as a bit of theory as to why some antennas work better over long distance but are not as good over a much shorter distance.

[@netpixels]

That would be very helpful. While I personally do understand the general differences of the various antenna types I can't exactly figure out if I should attempt to build one of these, a directional panep antenna or that Directional Bi-Quad of your which is my personal favorite of your builds.

[@dennismanning9953]

Thank you for your excellent videos . I am a complete novice at all of this. I realize tho so s almost BASIC question but how is the antenna actually connected and to what? That is, is it connected via coax to a router or to the laptop, for example? Thank you fir your patience with my qquestion

[@MrAndroidhands]

I have a 60cm boom with the same frequency but the calculator gives same dbi as your antenna. I need it for long distances so does anyone know how to increase range

[@tracibeacer670]

I'm into rc planes and find your videos of great interest.If I was to buy one of these or foolishly try and make one ,as there are so many variations on the 2.4 frequency which one would you advise. Looking for long and straight flights!Many thanks s

[@MrDeeejaaay]

If you used complete di-poles you would probably have even better performance. A true LPDA has a + and - element for each position.

[@ieeeleadinguniversitystude790]

Hey, Andrew mcneil, Thanks for creating this video. I wanted to know what other material is best for antenna 3Ghz-12Ghz range? Can I use copper/brass/stainless steel as Element and Boom. What are the best material for boom and element?

[@NicuIrimia]

Have you tried feeding from the tip?

[@RobertJochim]

The wider bandwidth you cite is probably a product of the diameter of your elements - 2mm in this case. You'd be much tighter to the 2400 - 2500 MHz target if you had used a 1mm wire or tubing.

[@donnypodcast]

How exactly is the coax soldered onto the boom? I'm not exactly sure, but from what I saw, is the braid twisted into a wire and soldered on one side and then the center wire soldered on the other side?

[@philnyc]

Andrew, a Quick question. I've been making lpda Antennas for the 144/430 amateur radio bands and their design are fed with coax from the front of the boom. May ask why your design is fed from the end. Does that make a difference from Which end the feed point empowers the aerial? The only difference I am noticing is that your dipoles are unevenly spaced out. Antennas I've made, have equally distant dipole from both ends of the boom. Thanx. Great work on your part w these Antennas TBH 😀

[@natebecks6910]

would it have been easier to use a propane torch? or would the heat of it have warped the boom? i know you would have had great heat distribution on both the boom and the element and a good solid connection.

[@hoggif]

If you have an analyzer, I'd love to see impedance or reflection coeffiecients (like SWR) measured for the antennas. You could perhaps use a directional coupler and a spectrum analyzer/power meter to check for matching. A dremel with a cuttting wheel could perhaps be used to cut the rod without loading the soldered joint if you need to cut it after soldering.

[@andrewmcneil]

+hoggif Hi yes the main reason I wanted to build this antenna is to use it as a reference antenna for the analyzer. I did try to use the dermal but the vibration made the joints loose.

[@MrSailor50311]

andrew mcneil When using a vice to cut elements the size of the vice seems to be an obstruction. If you measure then cut the element seem easier? Richard [e-mail]

[@GeorgeGardinier]

very good for the reasons you said. do you know how far away is the distance of the test. can this be used for rv'er or caravanners outside in the weather

[@corax2012]

Don't know how I overlooked that calculator. I suppose that's just for ideal performance, but it's goofy that each element is different by 1/10 of a millimeter. Don't think the hardware store sells it that way.😁 Any advice from commenters? Andrew doesn't leave comments.

[@g1fsh]

Do u have an electronics channel Andrew?

[@tracecommunications]

It looks as if you are using the log periodic antenna in the horizontal polarization mode. Aren't most Wi-Fi antennas vertically polarized and shouldn't you orient the log periodic vertically?

[@eknaap8800]

@tracecommunications: Most of the received long range signals are reflected ones. The tend to change their polarization often. Furthermore, horizontal placed antennas are a bit more directional as they do not 'look' sideways as vertical ones.

[@trench01]

What would be the top 3 long range wifi antennas that you have since you have so many.

[@sokolum]

Is it also effective for transmission?

[@GeorgeGardinier]

also if you had these in your store you could make a sale

[@AngelusMortis1000]

Pun intended?