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CM 4221
Nov 1, 2006 19:10:36 GMT -5
Post by crepehanger on Nov 1, 2006 19:10:36 GMT -5
Just received the 4221 from Crutchfield. I hooked it up and tried it in the attic and outside. Outside was definitely better, although attic was fair. Here's my question. I can currently pickup 38 and 54 about 90% clear; 66 is very snowy no matter how I turn the antenna. 28 is fair, although I can continued to get GPTV through Dish so I'm not worried there. 9 is actually pretty clear, but 3 is bad---I was surprised to get 9 so clearly on a UHF antenna. All these are SD signals.
Here's my question: given what I have described should I expect to pull in digital signals once I get an HDTV? Would an amp do any good or just a trial and error sort of thing? Thanks for all the help.
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DJ
Junior Member
Posts: 68
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CM 4221
Nov 1, 2006 21:21:22 GMT -5
Post by DJ on Nov 1, 2006 21:21:22 GMT -5
Are you using a dedicated cable from the antenna? Or are you using diplexers to combine the satellite and OTA signals into one cable?
If you're using diplexers, the signal strength on upper UHF channels may be adversely affected depending on the how much interference the satellite receiver is injecting into the line.
If you're using a dedicated line, great! As for channel 66, I don't think they're running at full strength as it's kinda snowy for me as well, even with a 10dB powered amp mounted at the antenna. For channel 3, the 4221 is designed for UHF only! Lower VHF channels will not be properly received on the 4221.
Now, for your HD locals, you should be fine. Channel 3's HD is on UHF 15.
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CM 4221
Nov 1, 2006 22:11:18 GMT -5
Post by crepehanger on Nov 1, 2006 22:11:18 GMT -5
Using dedicated cable (RG-6) from the antenna into the dish receiver--not diplexing the cable. Is the $20 CM amp at home depot good to use, or is there an advantage to the pre-amp at the antenna?
BTW, my antenna cable run is about 25 feet.
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DJ
Junior Member
Posts: 68
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CM 4221
Nov 8, 2006 21:37:54 GMT -5
Post by DJ on Nov 8, 2006 21:37:54 GMT -5
As you stated in your other thread, the HD's are coming in strong, except for WTVM. They'll come in better once they raise their transmitter up the tower.
As for using an amp, if the signal is already strong, then adding an amp may not be a wise choice. It'll create a situation where the already strong signals will become too strong, possibly creating reception problems.
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