I'm looking at OTA DTV.
So I have a pair of typical rooftop TV antennas (4-element VHF with about 15 elements UHF). These are supossedly cophased for the VHF band (roughly 8-10 feet apart on a vertical mast). The cophase harness was supposed to be 450-ohm ladder line, but I use two equal lengths of twin lead to a 300/75 ohm balun, and then finished the run with some cheap RG-59 (about 50 feet to a 3-way splitter).
I need better signal for some of the DTV stations so I decided that I'd replace the RG-59 with some twin lead all the way to a 300/75 ohm balun at the splitter.
Results were good with signals measuring 30% popping up to over 70%. The only thing I'm worried about now is multipath.
Someone said that RG6 would be better, but I thought that the loss relative to twin lead might knock out some of the weaker channels.
So I have a pair of typical rooftop TV antennas (4-element VHF with about 15 elements UHF). These are supossedly cophased for the VHF band (roughly 8-10 feet apart on a vertical mast). The cophase harness was supposed to be 450-ohm ladder line, but I use two equal lengths of twin lead to a 300/75 ohm balun, and then finished the run with some cheap RG-59 (about 50 feet to a 3-way splitter).
I need better signal for some of the DTV stations so I decided that I'd replace the RG-59 with some twin lead all the way to a 300/75 ohm balun at the splitter.
Results were good with signals measuring 30% popping up to over 70%. The only thing I'm worried about now is multipath.
Someone said that RG6 would be better, but I thought that the loss relative to twin lead might knock out some of the weaker channels.
