Reasonably changing existing SAT/cable connection botch work

The sketch clears the fog.

[*]The satellite antenna at this position is clearly subject to grounding according to IEC 60728-11 and
[*]the cable routing upwards along the facade also crosses the 2 m zone below the eaves, which is normatively defined as not strike-protected.
[*]A cable TV signal feed from HÜP -> HAV -> new directional coupler pass-through junction box -> one of the existing satellite cables -> cable TV quad splitter in the attic -> new pass-through junction boxes + terminating resistors is technically possible.
[*]Subject to the approval of the cable network operator, satellite signals may also be injected into the other cables, except for the satellite cable repurposed for the cable TV feed, as long as the cable TV area does not use the range up to 1006 MHz.

A cable routing through the lightning protection zone LPZ 0A and even on the outside of the facade through the grounding-required 2 m area shows a lack of lightning protection awareness by the installer and could only be topped by cable installation next to a metallic roof gutter (Please provide a photo of this).

Even if this antenna location, which is unfavorable in terms of HF and lightning protection, was specified by the client for aesthetic reasons, a standards-knowledgeable antenna installer should have raised concerns against an installation without lightning current capable grounding and equipotential bonding and should have refused the installation in this form. Direct lightning strikes are fortunately rare, but if St. Florian (the patron saint of firefighters) fails, no one will remain dry here. A basic protection against electric shock is also missing.

In order to propose a standards-compliant solution in detail, information is still required on whether the equipotential bonding, which has been mandatory since the expiry of the transition period in 1990, has been performed and please also add the position of the HES (with grounding system?) in the sketch. Pictures of the decommissioned cable TV system and the "bare" HES without cover would avoid further inquiries. The type and approximate length of the coaxial cables are also relevant.

Even though the interest in standards-based consulting has apparently waned, I am submitting a prepared conversion proposal for BK and BK with Sat.-distribution to 4 participant sockets with

[*]the existing garage antenna and a new Unicable LNB as well as
[*]antenna relocation to the roof with the existing Quad LNB

again.

Consultations where one has to extract the necessary information from the users seeking advice are difficult for me.


A waste of time.

Consultations where you have to pry the necessary information out of asking users are difficult for me.

Me too. All the more I’m pleased that you have nevertheless managed to decide to do it, because I always find such topics really exciting and shake my head every time I see the rubbish the average electrician, who of course also has BK/Satanlagen on his Vito, produces. Incidentally, even though for me the topic will be settled with the upcoming move. So I am really and honestly only interested because of the technical aspects, and because I always like to listen to or read people who obviously know what they are talking about. Keep it up!

Thank you very much for the detailed suggestions! I am still here and grateful for the suggestions. Honestly, I am a bit overwhelmed by it. Among other reasons, I have not responded yet because I am not even able to provide the requested information completely—let alone fully understand the drawing or draw the correct conclusions from it. At the moment, I do not have the capacity to delve so deeply into the matter—I thought the question of the cabling could be answered simply. Slowly, I am beginning to understand that this is not the case and why. In this respect, I ask for your understanding that I could not foresee which information was needed and that I cannot provide some details at all.

For the sake of completeness, I will try to answer everything as far as I can: The new coax cables are of the type "110 HD PVC - 17dB/100N@800MHz EN 50117-2-4, Class A - 100723" and are between 15 and 30 meters long (depending on the room). The old coax cables are presumably from the year of construction (~1982), and I could not determine exactly what kind of cables they are. I estimate the length to be about 10-15 meters (depending on the room). The main grounding bar is located neither near the cable connection nor the satellite system. To my knowledge, there is no connection there either—but I cannot say for sure; an electrician would first have to inspect the box... I will not touch that. I took a photo of the BK-HÜP. As mentioned, nothing is connected there. The cables around it have nothing to do with it—the connected cable is probably the house connection; the further run is inaccessible. In the other pictures, old distributors/amplifiers can be seen that are no longer in use.

For the sake of completeness, I will try to answer as much as I can: The new coax cables are of the type "110 HD PVC - 17dB/100N@800MHz EN 50117-2-4, Class A - 100723" and are between 15 and 30m long (depending on the room). The old coax cables are probably from the construction year (~1982) and I could not determine exactly what kind of cables they are. I estimate the length at about 10-15 meters (depending on the room).

[*]The 8-way splitter is unsuitable for Sat IF and
[*]the multiservice amplifier is unsuitable for BK.
[*]Also, technically outdated F screw-on connectors existed/exist appropriate to the cable diameter, adapting them with insulating tape is crude nonsense.
[*]I could not find the type of the new cable on the internet,
[*]but 17 dB/100 m at 800 MHz indicate a low-loss foam dielectric.
[*]The number of shields,
[*]inner conductor made of cheap steel wire or copper,
[*]braid made of fracture- and intermodulation-prone aluminum or tinned copper

can therefore only be clarified on site by inspection.

Simply shielded 60 Ohm old coax cables are EMC emitters and should be replaced even at short lengths and low signal attenuation. The EMC limits of the national SchuTSEV must be complied with even without interference with one's own reception.

The main grounding bar is located neither near the cable connection nor the satellite system. To my knowledge, there is no connection either - but I cannot say for sure, an electrician would first have to inspect the box... I'm not going to touch that.

Better a PA that is retrofitted decades too late than never, and also think of a normative compliant antenna ground while doing so.

Hello,

I live, like you, in the Stuttgart metropolitan area, operate a rather extensive satellite system for the building in a single-family house with fed-in Vodafone (formerly Unitymedia) cable, and I have an intermediate question regarding your explanation that the cable networks will foreseeably be expanded up to 1006 MHz.

Would it not be possible, for example, to install an Axing TZU 198-62 low-pass filter or something better/equivalent in the cable feed? This would block the cable frequencies from 950 MHz onwards and there would be no trouble in the satellite feed.

It is clear that some cable programs would then be lost. However, I currently only use cable for some FM tuners.