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On 29-04-12 00:21, Brian J. Murrell wrote:
On 12-04-28 04:39 PM, Brian J. Murrell wrote:I typically have one more splitter downstream from that 3 way splitter which is a 4 way splitter to feed all of the tuners on my Mythtv box and introducing that splitter reduces the SNR at the HVR-1600 to between "13c" and "13e" (31.6 - 31.8 dB).Interestingly enough, I moved the Myth backend to it's usual home, in the basement, right next to the incoming cable signal and replaced that 25' run that I had going to where it was temporarily with a smaller, say 10' run (of RG-59 so still room for improvement) and my SNR at the HVR-1600, even after all of the splitters is now "015c" or 34.8 dB. I'm still going to go replacing all of that RG-59 with shorter, custom made lengths of RG6 cables. I can't go "too short" when making those can I or would even a 6-12 inch cable be perfectly fine? I'm thinking of the runs between that last 4 way splitter and the tuners in the Myth backend. b.
Brian,There is no minimum cable length for RF. Although for practical reasons i rarely go below 30 cm (1 '). It should be possible for you to buy "drop cables" which have a length of 1m5 (about 5') and are commonly used in HE to connect equipment.
screw-on F-connectors are another source of problems. Crimping F-connectors are best, but those need a fitting crimp tool.
Cheers, Rudy -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html