dieseltruckdriver wrote:
WA8YXMs advice was actually spot on. Notice he said "check what channels they actually broadcast on". Fellow ham here. ;)
After four paragraphs of Gdetrailer explaining why WA8YXM was correct, I also agree that it seems to be a wiring issue, and I think it was explained very well. I would guess a splitter in the wrong spot also.
Edited to add, very nice visual explanation!
It should be noted that ATSC TV tuners do not give the actual channel frequency that is being used, only the virtual channel, so "spot checking" what the actual frequency is being used via TV tuner is not a viable option.
Instead you have to search the wobbly web to find a website which lists the broadcasters in your TV market with not only their virtual channel but their actual broadcast frequency. Sounds simple but in reality, not as simple as it sounds. You also have to find a current up to date listing, not all websites are current and up to date..
As a "Ham" myself, it is very easy to forget that not everyone has the same ability to go outside the box and one must consider breaking complex info into much smaller and easier to understand chunks.