Registered: Jul 2002
Hi. I'd like to take advantage of some of the expertise on this thread, so let me detail my question.
I have Cablevision digital service, which is actually a hybrid analog (channels 2-106 or so) / digital (above 106). I have a cable modem, just so we're all thinking bi-directional at the outset.
My main service comes in to my mechanical room (I live in an apartment), where three individual cable runs to rooms in the apartment start. I use only two of these right now, although I have an interest in using the third at some point in the future.
Right away, I start with a 2-way, -3.5dB splitter. One output goes to the living room, where the video equipment (TiVo, VCR) resides, so as to give it the cleanest signal. The other output gets split again by a 2-way splitter, with one output going to the master bedroom, the other staying right in the mechanical room where I've recently relocated the cable modem, which connects to a new wireless router/firewall. Moving the cable modem and firewall to the mechanical room (they used to be in the bedroom) allowed me to move my server out here, hardwired to the integral Ethernet switch, while allowing my laptops to communicate via the wireless.
Once we hit the living room, another 2-way, -3.5dB splitter is in place. One output goes to the TiVo, the other to the VCR, and the passthrough of the VCR (which is mostly off) goes to the cable box.
The signal to the TiVo (-7.0dB loss from the two splitters plus the RG6 cable loss) is pretty clean. However, by the time it reaches the cable box (-7.0dB plus an unknown loss from the VCR inline) it's not as good as it could be, particularly on some of the upper analog channels.
Let me stop here and say that some of you may be wondering about the whole arrangement of the TiVo, VCR, and cable box. Please take it on faith that I have my reasons, and that, except for maybe changing to a three-way (if I can find one) or four-way splitter in the living room, to give each of the devices a coax input, I don't want to make any changes. There's a story of how I record and why, but that's for another time.
What I'm looking for are suggestions regarding splitters and amplifiers to give me the cleanest signal. I've gleaned from reading the other postings on the thread that I'll want a bidirectional amplifier, located as far upstream as possible so as to start with the best S/N. In my current arrangement, the minimum signal loss for any of my devices is 7.0 dB (plus cable), as seen by the cable modem, the TiVo, the VCR, and the cable box in the bedroom. The cable box in the living room sees a lower, but unknown, signal.
Would I do well to get something in an 8 to 10 dB amplifier located before the first splitter out in the mechanical room? Does anyone have a brand and model for an amplifier, or amplified splitter, that is known to work with hybrid analog/digital cable systems?
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