ᐅ Making Sensible Improvements to Existing Satellite/Cable Installations
Created on: 12 Jan 2021 23:47
R
RAL5018
This is the situation I found:
The old cable connection is no longer in use. The wiring ran from the main distribution point (MDP) up to the attic and from there, through a splitter, down to several rooms. The cables and outlets still mostly exist but are no longer connected.
Then a satellite system (quad LNB) was installed, and new cables were run. These cables are embedded in the walls without outlets in the rooms; they just protrude from the walls.
I am currently renovating and want to optimize this setup. I want to keep the satellite connection for now but also keep the option open to switch to cable TV later. Since it’s not easy to lead the satellite cables up to the attic and redistribute them from there (which would probably have been the best solution from the start, I guess), and the new satellite cables are already partially installed at low cost, I would simply install drop outlets (?) there. So far, so good. Or are there good reasons not to install any outlets at all?
If I have 1-2 free connections on the LNB and the cable runs close to the old distribution, I could connect a device to one of the old cable outlets by running a cable via some kind of outlet up to the attic, right? Would I need to modify the outlets in any way, or would that just work?
Can I also route the satellite cable in a room (where it’s not really needed) via a pass-through outlet (?) up to the attic and then star-connect 1-2 more outlets so that only one of them is used at a time? So only one device would ever be plugged in? Or is the mere presence of splitters/pass-through outlets without devices an issue?
Can I even use the same type of distribution for satellite and cable TV? (I understand that cable TV allows multiple devices to operate on a star splitter, while a star wiring with a quad LNB only allows one device to be used at a time.)
I hope it’s clear what I want? I’ll try to describe it differently. I imagine connecting a cable from the LNB to an outlet (pass-through?), and from there another cable running up to the attic (where the cable signal originally came from). The cable upstairs is currently not connected. I would like to connect this to another former cable outlet to be able to use either one or the other outlet.
Also, I still have the option to unplug the LNB and switch back to cable from the other side. Then the cable would probably have to be disconnected directly at the outlet or a terminating resistor would need to be added at the LNB? That’s okay… At this stage, I mainly want to arrange the outlets and cables so that I can easily feed one of the old outlets with one of the remaining LNB channels. Switching upstairs in the attic is not a problem, but of course, it would be nicer if it could work without that.
The old cable connection is no longer in use. The wiring ran from the main distribution point (MDP) up to the attic and from there, through a splitter, down to several rooms. The cables and outlets still mostly exist but are no longer connected.
Then a satellite system (quad LNB) was installed, and new cables were run. These cables are embedded in the walls without outlets in the rooms; they just protrude from the walls.
I am currently renovating and want to optimize this setup. I want to keep the satellite connection for now but also keep the option open to switch to cable TV later. Since it’s not easy to lead the satellite cables up to the attic and redistribute them from there (which would probably have been the best solution from the start, I guess), and the new satellite cables are already partially installed at low cost, I would simply install drop outlets (?) there. So far, so good. Or are there good reasons not to install any outlets at all?
If I have 1-2 free connections on the LNB and the cable runs close to the old distribution, I could connect a device to one of the old cable outlets by running a cable via some kind of outlet up to the attic, right? Would I need to modify the outlets in any way, or would that just work?
Can I also route the satellite cable in a room (where it’s not really needed) via a pass-through outlet (?) up to the attic and then star-connect 1-2 more outlets so that only one of them is used at a time? So only one device would ever be plugged in? Or is the mere presence of splitters/pass-through outlets without devices an issue?
Can I even use the same type of distribution for satellite and cable TV? (I understand that cable TV allows multiple devices to operate on a star splitter, while a star wiring with a quad LNB only allows one device to be used at a time.)
I hope it’s clear what I want? I’ll try to describe it differently. I imagine connecting a cable from the LNB to an outlet (pass-through?), and from there another cable running up to the attic (where the cable signal originally came from). The cable upstairs is currently not connected. I would like to connect this to another former cable outlet to be able to use either one or the other outlet.
Also, I still have the option to unplug the LNB and switch back to cable from the other side. Then the cable would probably have to be disconnected directly at the outlet or a terminating resistor would need to be added at the LNB? That’s okay… At this stage, I mainly want to arrange the outlets and cables so that I can easily feed one of the old outlets with one of the remaining LNB channels. Switching upstairs in the attic is not a problem, but of course, it would be nicer if it could work without that.
kurzy schrieb:
... that the cable networks will foreseeably be extended up to 1006 MHz.This is only the first step, which has already been implemented in the current active and passive components. In some cable networks, such as those in the Benelux countries, they are even further ahead, as shown below.kurzy schrieb:
Couldn’t you, for example, install an Axing TZU 198-62 low-pass filter or a similar/better equivalent in the cable feed? This would block cable frequencies above 950 MHz and prevent any issues in the satellite feed.
It is clear that some cable channels would be lost, but currently I only use cable for some FM tuners.A 40 dB attenuation in addition to the input selection of a multiswitch or tap reliably prevents interference and intermodulation. There are also special single-cable matrices from JULTEC (marked with an X for selected cable operators), which avoid frequency collisions and ensure that DVB-C channels are not affected.Vodafone has switched off FM in the KDG network, and it is only a matter of time before this also happens in the former KBW and Unitymedia networks.
Link: DOCSIS 3.1, Fig.2.
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Octrineddy26 Jan 2021 16:35Don’t post any links; haven’t you been banned for that before? 😉
Octrineddy schrieb:
Don’t post any links, haven’t you already been banned for that? 😉Damn, I wasn’t aware of that at the time and deletion is no longer possible.
Thank you very much for the response and the link. An administrator will be able to delete this anyway.
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DOCSIS 3.1
Application note from R&S
first result on Google
"Vodafone has switched off FM radio in the KDG network, and it is only a matter of time before the same happens in the former KBW and Unitymedia networks."
That's correct. I had to set up a 5-euro Dbox2 with Neutrino as an "FM tuner" for my mother in northern Germany.
-->
DOCSIS 3.1
Application note from R&S
first result on Google
"Vodafone has switched off FM radio in the KDG network, and it is only a matter of time before the same happens in the former KBW and Unitymedia networks."
That's correct. I had to set up a 5-euro Dbox2 with Neutrino as an "FM tuner" for my mother in northern Germany.
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