DIY HDTV antenna

star882 · 23rd April 2007, 11:55 PM

http://www.lumenlab.com/forums/index...opic=9613&st=0
Throughout the whole thread, there are many different antenna designs. Which one is generally the best on UHF?

digifun · 27th April 2007, 08:50 AM

So. Very funny antenna. The best HDTV antenna is a digital satellite receiver. But if you want a UHF antenna you need, you can build these antenna.
First, these antenna need a agreeing device, that justifies resistances antenna and receiver

wire in plastic insulation it is necessary to wind on ferrite ring, by diameter 80 mm

star882 · 28th April 2007, 12:18 AM

Quote:

Originally posted by digifun
So. Very funny antenna. The best HDTV antenna is a digital satellite receiver. But if you want a UHF antenna you need, you can build these antenna.
First, these antenna need a agreeing device, that justifies resistances antenna and receiver

wire in plastic insulation it is necessary to wind on ferrite ring, by diameter 80 mm

Satellite is nice, but it's not free and DVB-S cards are very hard to find here.
The card I have can work with ATSC and QAM-based versions of DVB-C. I don't have a cable line installed so I can't use DVB-C, but the card has two inputs so I will leave one connected to an antenna for ATSC once I get a DVB-C cable line installed.

But which design should I use to start with?

digifun · 28th April 2007, 08:18 AM

This is a very good antenna. You can receive VHF and UHF signals by high quality.
This is a reflector:

This is a antenna module:

Complete antenna:

This aligner, without it antenna works much bad:

star882 · 29th April 2007, 01:12 AM

Quote:

Originally posted by digifun
This is a very good antenna. You can receive VHF and UHF signals by high quality.
This is a reflector:

This is a antenna module:

Complete antenna:

This aligner, without it antenna works much bad:

I have a 75R to 300R balun transformer. Can I use it as is or should I rewind it for your design?

digifun · 3rd May 2007, 05:59 AM

Yes, you can use this transformer.

mkinn · 31st May 2007, 05:36 PM

This: http://www.solidsignal.com/prod_disp...p?PROD=SPR8800
is $44.00 + shipping. You should be able to buy it in your area at an electronics parts wholesaler.

mightym · 15th January 2009, 04:32 AM

Digifun,

Is the top dipole what enhances the VHF reception?

The balance of the antenna looks like a CM DB-4 clone.

I'm 40 mi. +/- from my local stations, post transition will only have high VHF, and UHF to receive. Currently using a YAGI, rated at 90 Mi, but not getting all stations ( I think it's due to Tree's in LOS ) would doubling your design and stacking a vertically mirrored pair work for a broadcast antenna spread of aprox 30 deg.? ( plus moving the location to avoid LOS issues )

Hope you can help,

John

diyRoma · 25th January 2010, 10:35 AM

I can't seem to open the large photos. Do you have a fresh link I could use to get the specs and build my own ?

krislou80 · 24th July 2010, 07:58 AM

I couldn't find the antenna module for this one. the image link posted couldn't loud.

23rd April 2007, 11:55 PM	#1
star882 diyAudio Member Join Date: Mar 2007	DIY HDTV antenna http://www.lumenlab.com/forums/index...opic=9613&st=0 Throughout the whole thread, there are many different antenna designs. Which one is generally the best on UHF?

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27th April 2007, 08:50 AM	#2
digifun diyAudio Member Join Date: Apr 2007	So. Very funny antenna. The best HDTV antenna is a digital satellite receiver. But if you want a UHF antenna you need, you can build these antenna. First, these antenna need a agreeing device, that justifies resistances antenna and receiver wire in plastic insulation it is necessary to wind on ferrite ring, by diameter 80 mm

28th April 2007, 08:18 AM	#4
digifun diyAudio Member Join Date: Apr 2007	This is a very good antenna. You can receive VHF and UHF signals by high quality. This is a reflector: This is a antenna module: Complete antenna: This aligner, without it antenna works much bad:

3rd May 2007, 05:59 AM	#6
digifun diyAudio Member Join Date: Apr 2007	Yes, you can use this transformer.

31st May 2007, 05:36 PM	#7
mkinn diyAudio Member Join Date: Sep 2004 Location: Birmingham AL	This: http://www.solidsignal.com/prod_disp...p?PROD=SPR8800 is $44.00 + shipping. You should be able to buy it in your area at an electronics parts wholesaler.

15th January 2009, 04:32 AM	#8
mightym diyAudio Member Join Date: Feb 2008 Location: Checotah, Okrahoma former home of the Okra Fest	Digifun, Is the top dipole what enhances the VHF reception? The balance of the antenna looks like a CM DB-4 clone. I'm 40 mi. +/- from my local stations, post transition will only have high VHF, and UHF to receive. Currently using a YAGI, rated at 90 Mi, but not getting all stations ( I think it's due to Tree's in LOS ) would doubling your design and stacking a vertically mirrored pair work for a broadcast antenna spread of aprox 30 deg.? ( plus moving the location to avoid LOS issues ) Hope you can help, John

25th January 2010, 10:35 AM	#9
diyRoma diyAudio Member Join Date: Jan 2010	I can't seem to open the large photos. Do you have a fresh link I could use to get the specs and build my own ?

24th July 2010, 07:58 AM	#10
krislou80 diyAudio Member Join Date: Jul 2010	I couldn't find the antenna module for this one. the image link posted couldn't loud.

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