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Increasing Cable TV signal strength
On Wed, 08 Feb 2012 19:30:07 -0600, amdx
wrote: Any idea where channel 428 would be in that frequency range? That's a duplicate of 4,2 but in HD, and it works when 42 doesn't. Ummm... it's ugly. There are up to 10 standard definition or 2 HD channels crammed into a 6 MHz wide RF slot. In order to untangle this, you would need to run a PSIP decoder and extract the CVCT record: http://en.wikipedia.org/wiki/PSIP to figure out where digital CH 428 fits. It could literally be anywhere. However, if you happen to have an tuneable notch filter (which I happen to have), you can stuff it in series with the cable, and spin the dial until the signal disappears. Then, just read the dial. (Comcast seems to be putting well paying and popular channels on the lower frequencies, and obscure junk on the higher frequencies. I'm not sure if this is intentional, accidental, or my imagination). The 4 way splitter has a loss of about -7dB. Just a point. I may not have made it clear. I had the tech put in two 2way splitters and connect me to the first one. Hoping to gain 3db. (or 4) and it did make a difference. Yeah, I saw that. I guess I wasn't too clear. The input signal can vary over a 10-16dB range, and it still should work. The 3dB difference between a two port and a 4 port splitter isn't going to make much difference, exept at the higher channels. -- # Jeff Liebermann 150 Felker St #D Santa Cruz CA 95060 # 831-336-2558 # http://802.11junk.com # http://www.LearnByDestroying.com AE6KS |
#2
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Increasing Cable TV signal strength
On Wed, 08 Feb 2012 20:15:51 -0800, Jeff Liebermann
wrote: However, if you happen to have an tuneable notch filter (which I happen to have), Are you left handed? :-) (It's a movie joke) |
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