Welcome to the forum.
When we first moved in, we got about 20 channels. Now, it seems we're lucky if we get 10. And most of the channels are channels that aren't any good.
It sounds like that there has been some deterioration in the antenna connections or the coax downlead.
I was wondering if there would be any improvement if we got a special HDTV OTA antenna.
The antenna doesn't care if the signal is digital or analog. An antenna that is called "HDTV" is just advertising hype. Actually, a digital signal is analog (amplitude modulated 8VSB) that carries the digital infomation.
I mean, either you have the digital signal or you don't. There's no in between, is there?
That's pretty much true in comparison to the gradual deterioration of a weaker analog signal that gets more snowy, but there is a narrow transition zone with digital signals just before dropout that is called the "digital cliff" were you will get picture freeze and pixelation.
What can I do to make our signal better? I wouldn't think an amplifier would help with digital signals. I understand that amplifiers really only work for analog signals. Digital is 1s and 0s. You can't amplify a 1 anymore. A 1 is a 1.
We need to see the signal report from tvfool for your location to know what kind of signals that you have. Please go to tvfool.com
, click on >> Click HERE << that is on the left middle of the page which brings up a page where you enter your exact address (which doesn't show in the report to protect you) and gives us the link for the report that is in bold type near the top of the report page. If you don't have enough posts yet to give an active link, just give us the last part after dot com.
Amplifiers will work equally well with analog or digital signals. We need to see your tvfool report before we can tell you if you need a preamplifier at the antenna because of weak signals.
An antenna or its coax downlead in poor condition can also make the signals weak before they reach your TV.