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#42
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Review on TV antenna
Fred wrote: "In article ,
- show quoted text - Yes, you want the strongest possible signal, but you are stuck with what you get. Amplifiers generate noise, but feedlines also generate noise. Having an amplifier at the antenna results in an improved signal-to-noise ratio at the receiver, compared to having the same amplifier at the receiver end of the feedline. This is especially true for signals that were marginal to begin with. Fred " You may be raising the signal higher above the line & receiver noise, but you are also amplifying any noise *in the signal itself*. THAT is why I advocate maximizing gain first, via the biggest antenna you are able to/are permitted to install. Again, the only situation in which I would recommend an amp is when feeding multiple receivers(TVs, recorders, FM tuners, etc). NOT to make up for a dinky(read: low-gain) antenna. |
#43
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Review on TV antenna
wrote in message ... Freddie MacK, et al: Example of antenna to steer clear of - unless you live 20 blocks from the transmitter: http://freakinreviews.com/hd-free-tv-reviews/ Reminds me of an anenna I got with one of the dongles that turns a computer into a TV. It is about the size of a mouse pad. It will pick up a few stations if close, but not much if very far from a station. At the house I get about 2 stations with it,but about 30 or more on an outside antenna. Granted many of them have 2 ot 3 from the same transmitter. |
#44
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Review on TV antenna
On Fri, 25 Dec 2015 19:42:57 -0700, Tony Hwang
wrote: Micky wrote: On Wed, 23 Dec 2015 19:10:55 -0800 (PST), wrote: Micky wrote: ", right? Not even badly, so y ou don't know to turn up the amp." Not just here but everywhere it woudl help if you would quote more of the previous post. No antenna worth the metal it's made of needs an "amp". Build enough gain into the antenna itself and you won't need to add a noisemaker to it. How much experience have you had with stations 30, 40, 50 miles away? Amplifiers work well and are often the best possible method of getting such stations. Even if I could duplicate what I have now by buying an antenna twice the size and mounting it on a 30 foot mast , why would I do that when I can get the same result with a maybe iirc $30 amplifier? And I don't get any noise. I didn't with analog and I certainly don't with digital. Where do you mount(position) the amp module? It's near the antenna. What's the tech spec of amp? S/N ratio, gain on VHF or UHF? power fed by coax or separage power cord? Dunno, dunno, dunno, power through the coax. It's not an expensive amp, but it yields a perfect picture. Of course, as Sam says, the input has to be decent, but that's one of, will that's the big advantages of digital. It's decent enough. All this elitist stuff about buying expensive equipment when it doesn't help goes all the way back to monster cable for hi-fis, probably farther, and most of it is nonsense. |
#45
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Review on TV antenna
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