Hi all,
This is my first post. I hope that someone can help me. Here is the background information:
The TV in question is a portable TV equipped with a digital converter box and an omnidirectional amplified antenna. For years I was receiving all channels from 2-68 along with their digital subchannels. (I had some trouble with the PBS affiliate channel 13 however). Usually I just had to place the antenna on top of the TV, though sometimes I had to place it to the right or left of the TV.
In late May or early June I couldn't receive channels 2-48, which are the channels of all the major networks. At first I thought this might just be a one day thing due to atmospheric conditions (which happened occasionally though infrequently, at least that was my guess as to the cause). I tried again the next day and the same thing occurred. After a few days I started trying the TV every other day and then finally every other week. Then one day in late August or early September all the channels were back. So I was happy. Then in late September or early October the same thing happened again; the only channels that I can receive are 50-68-which are mostly foreign language stations.
Channels 2-48 are mostly transmitted from an easterly direction while 50-68 come from a general westerly direction. If I try the onscreen signal strength tester on the above mentioned lower channels it will sometimes build up to maybe the upper 20s or mid-30s with occasional sound or a digitize picture then within a second or two the signal strength drops to 5 or 0. Onscreen will also occur the messages, "Low signal strength" or "No program found"
I'm completely perplexed by this problem.
I can't figure out why suddenly all these channels would just be gone, while I can still receive the higher channels.
Thank you in advance for any help anyone can provide.