Re: HVR-1600 QAM recordings with slight glitches in them

[Rudy Zijlstra <rudy@grumpydevil.homelinux.org>]

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