If this is not the best newsgroup for this issue, please recommend others. Thanks.
New antenna 60 days ago followed by two digital converters, one upstairs and one downstairs. At first, both worked fine, but now the one upstairs fails to capture the digital signals. Replaced it with a different model, same problem. New coaxial cable from converter to TV has not helped.
Meanwhile the converter in the basement works fine.
We're thinking that the problem lies with the antenna cable from the roof to the upstairs location or some malfunction within the upstairs TV itself.
Any thoughts? Thanks again