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AllStar
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hasan said:
What kind of signal level are you seeing on the HR20?

Is it bad for all channels, or are you looking for a particular channel?

Are you splitting the signal to other devices?

If so, bypass the splitter and go directly into the HR20 and see what it looks like.

If you still don't get (any/the desired) channels, try the following:

Get a few 75 ohm jumper cables (lots of them are supplied for various devices), of different length. Typcially they are 3 feet or so in length, but what we are interested in is "various" lengths.

Go to Radio Shack and buy a maybe 3 double female F connectors, so you can add various line lengths to your main feedline coming into the HR20 (and we are still talking about taking the main feedline, no splits, and plugging it directly into the HR20.

Now....take one of the extra length (3' or so) cables and put a double female on one end and plug the main feedline into it. Plug the other end into the HR20 OTA antenna input. Check to see if you have any signa. If you don't, add another small length and try it again.

I have found the HR20, and in fact, my Sammy HDTV, to be sensitive to the length of the line coming from the antenna..it's an impedance bump problem. It varies by channel (UHF especially). I did some rewiring here this morning and got two channels that were unwatchable to come up to perfect reception, by doing NOTHING other than changing the length of the line to either the HR20 or the TV itself.

As another test, I completely bypassed all splitters and a preamp, and by varying nothing but the line length, several channels were quiet viewable and strong at one line length and pixellating at another length.

Give it a try, it's a very inexpensive experiment.
In my case I added a radioshack amp/distribution kit for $49.95. It greatly improved a couple of fringe channels located over 60 miles away, without over driving locals already coming in at or near 100%. :)
 
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