Homemade Indoor 6 Element UHF TV Yagi.

I show a quick demonstration in the shack using a standard 1m long 75 ohm coaxial patch cable connected to my TV and the Yagi antenna.

At the end of the video are the dimensions and materials used to construct the Yagi antenna.

Pause the video if you want to write the information down.
Good luck if you build one. It was a quick and fun project anyone can do with some basic workshop tools.

73

Category:

Science & Technology

Tags:

• VK3TVZ
• TV
• Yagi
• antenna
• UHF
• television
• balun
• folded
• dipole
• 75
• ohm
• coax

[jphdg]

Awesome! :) Good to hear others are having success building this and getting results.

[jphdg]

Thank you kindly sir, you're most welcome.

[ufoengines]

Are there UHF TV Fractal Yagi's ?

[jphdg]

@ufoengines

Now that is an interesting question. I do not know a lot about the cosh fractal designs except I believe it has been experimental. I have not seen one myself or know anyone making them, but in theory it could be possible.  This is something I should read up on as it seems to be a rather interesting concept. I have only experimented with traditional style antennas such as Yagi, dish reflector, collinear and dipole systems between HF to low band microwave.

[SilverEyeProd]

I found the Yagi Calculator program, but I can't find infos about the ideal center frequency I should choose. I'm still pretty amateur concerning antenna designs. I see from a governmental website that the UHF TV signals in my area are between 530 MHz and 686 MHz. Does it mean that my center frequency should be 608 MHz?

[jphdg]

@SilverEyeProd

Yes, generally the frequency you enter is optimum resonance, so for TV there will be compromise on adjacent channels. I would build it for centre frequency of 608MHz if all stations have similar strength. If you're getting all except one strongly, optimizing closer to the weaker channel may help whilst still giving good picture on stronger channels. For receive, it's not as critical in this case, so you should still get good results over this frequency range.

Hope this helps.

[renewii]

Very cool antenna it worked for me

[glk001]

Bravo...Nice looking antenna and you did a very nice job building it...Thanks for the video!..

[HPDpvtcaboose]

holy  shit thats nice

[jphdg]

@SilverEyeProd

My antenna is made using a calculator by VK5DJ John Drew. You can calculate for many frequencies and different number of elements for gain. It will design a single band antenna only, so you need to build two to cover VHF & UHF then use an antenna combiner for a single 75 connection for TV.

It will optimize for a frequency you specify, but works well over a broad bandwidth using a folded dipole.