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Which Pre-Amp to use?
you may be interested in a duplexer that divides the uhf and vhf ebay has a few $30-50 mainly for hams but can be used to direct uhf and vhf to separate cables.
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Could a pre-amp help with an analog FM station that occasionally fades?
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choose a LNA low noise amplifier, usually 1db or less
An amplifier by its definition creates noise, Read on discrete transistor amplifiers, but thats not all, An amplifier will amplify signal, as well as general noise in the environment + its own noise it makes. If at all possible use an antenna with gain over a standard quarter wave antenna. Use a low noise amp/pre-amp at the antenna mast, only if you have +50ft of coax transmission line. quad rg-6 is not bad, RG-11/ is better, and is better than the standard dual shielding rg-6, but there are even better cable, but will drive the cost up considerably and not available in traditional stores, but is used in new home construction. each 100ft of coax will reduce your signal, This is why you have an antenna mounted low noise amplifier, to compensate for cable losses. amplifying the signal at the tv/ fm tuner will will amplify an already degraded signal. Each splitter will reduce the signal, so a 3 way splitter will add insertion loss plus have 0.33 1/3 of the signal. Using the correct duplexer which has a hi pass filter for uhf tv , and a low pass filter for fm radio, then split the fm for the 2 fm receivers having 0.5 or 1/2 if the signal, More signal for the receivers, instead of using the traditional 3 way splitter. You could try with a low noise amplifier at the antenna, and go from there. and swap the 3 way with a duplexer and a 2way splitter, if the signal level is not to your liking. http://en.wikipedia.org/wiki/Coaxial_cable great read explaines cable selections. Its easy to loose signal, but ones its lost, the quality will suffer if amplified after the fact. Quote:
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In the next few days, I will have 25 feet of quad sheild RG6 from the antenna to a Channel Master 3414 distribution amplifier. The noise rating on the distribution amps seem to be VERY similar to the pre-amps. Usually a little under 3db. |
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What station(s) are you experiencing fading? |
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Too bad Winegard discontinued the 6055 antenna. That would have helped you somewhat, but WRIF would likely not be completely stable at close to 100 miles out with any antenna. CIMX is pushing 100,000 watts & is about 20 miles closer to you.
Does your Sony now far exceed your car radio's performance since you installed the FM6 antenna? |
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Is there anything BETTER than the FM6 out there that's available?
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Unfortunately you are SOL with a better FM antenna unless you can find a used one. All the Winegard 6055's seem to have disappeared.
Not sure how much a modified FM6 will help you, but it's easy enough to do. The modification will improve the front to back ratio, but doesn't add any forward gain so it's hard to say how much improvement you will actually see. Are you having trouble at certain times, or all the time? The atmosphere is still quite active with tropospheric activity, but will start simmering down as cooler weather moves in. The tropo activity can really wreak havoc on normally decent reception when signals from 200+ miles on the same frequency override them. |
Centronics is showing the 6055 as being in stock. You may want to see if they still really have any left.
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I actually had the even larger 1110(16 feet long), but could't find a pic. |
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I have never heard of Centronics so hopefully the antenna actually comes. |
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