http://www.lumenlab.com/forums/index.php?showtopic=9613&st=0
Throughout the whole thread, there are many different antenna designs. Which one is generally the best on UHF?
Throughout the whole thread, there are many different antenna designs. Which one is generally the best on UHF?
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
First, these antenna need a agreeing device, that justifies resistances antenna and receiver
An externally hosted image should be here but it was not working when we last tested it.
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.digifun said: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
An externally hosted image should be here but it was not working when we last tested it.
wire in plastic insulation it is necessary to wind on ferrite ring, by diameter 80 mm
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?
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:
This is a reflector:
An externally hosted image should be here but it was not working when we last tested it.
This is a antenna module:
An externally hosted image should be here but it was not working when we last tested it.
Complete antenna:
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
This aligner, without it antenna works much bad:
An externally hosted image should be here but it was not working when we last tested it.
I have a 75R to 300R balun transformer. Can I use it as is or should I rewind it for your design?digifun said:This is a very good antenna. You can receive VHF and UHF signals by high quality.
This is a reflector:
An externally hosted image should be here but it was not working when we last tested it.
This is a antenna module:
An externally hosted image should be here but it was not working when we last tested it.
Complete antenna:
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
This aligner, without it antenna works much bad:
An externally hosted image should be here but it was not working when we last tested it.
This: http://www.solidsignal.com/prod_display.asp?PROD=SPR8800
is $44.00 + shipping. You should be able to buy it in your area at an electronics parts wholesaler.
is $44.00 + shipping. You should be able to buy it in your area at an electronics parts wholesaler.
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
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
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