Hi. I have no knowledge about satellite dishes and electrical work, so I will have a professional install the dish soon.
Right now, I am in the process of ordering the "materials." The dish will be mounted on the roof. We have already received the special roof tile from the construction company. The antenna cables will be routed and connected in the attic and then distributed to the rooms from there.
I had chosen the following dish:
DUR-line Select 85cm/90cm (33in/35in) Anthracite Satellite Dish - 3 x Test + Very Good + Aluminum Satellite Reflector
Along with this LNB + multiband switch:
DUR-line Ultra Quattro LNB - only for multiswitch, black - with LTE filter
DUR-line MS 5/8 Blue eco power-saving multiswitch - for 8 satellite users/TVs - no power supply needed - 0 Watt standby multiswitch [Digital, HDTV, FullHD, 4K, UHD]
Questions:
1. If I understand the dish description and questions in the reviews correctly, no roof mast or rafter mount is included. So I would need those separately, right? How about this one:
PremiumX Basic X120-48 Satellite TV rafter mount with 120cm (47in) galvanized steel mast, rafter bracket for satellite antenna satellite dish | Cable entry mast cap 10 coax cables
2. And I would also need cable and a grounding block, correct?
50m (164ft) PremiumX Deluxe PRO coaxial cable BLACK 135dB 5-fold shielded, pure copper satellite antenna cable 50m (164ft) 135dB 10x F connectors gold-plated 8.0mm (0.31in)
DUR-line grounding block DEB 9-way made of high-quality cast - shielding > 90 dB - SAT/cable/FM/DVB-T
3. Do people still need an antenna for radio reception nowadays? Doesn’t everything run mostly over the internet now? If yes, what type of antenna should I get and what else should I consider?
Right now, I am in the process of ordering the "materials." The dish will be mounted on the roof. We have already received the special roof tile from the construction company. The antenna cables will be routed and connected in the attic and then distributed to the rooms from there.
I had chosen the following dish:
DUR-line Select 85cm/90cm (33in/35in) Anthracite Satellite Dish - 3 x Test + Very Good + Aluminum Satellite Reflector
Along with this LNB + multiband switch:
DUR-line Ultra Quattro LNB - only for multiswitch, black - with LTE filter
DUR-line MS 5/8 Blue eco power-saving multiswitch - for 8 satellite users/TVs - no power supply needed - 0 Watt standby multiswitch [Digital, HDTV, FullHD, 4K, UHD]
Questions:
1. If I understand the dish description and questions in the reviews correctly, no roof mast or rafter mount is included. So I would need those separately, right? How about this one:
PremiumX Basic X120-48 Satellite TV rafter mount with 120cm (47in) galvanized steel mast, rafter bracket for satellite antenna satellite dish | Cable entry mast cap 10 coax cables
2. And I would also need cable and a grounding block, correct?
50m (164ft) PremiumX Deluxe PRO coaxial cable BLACK 135dB 5-fold shielded, pure copper satellite antenna cable 50m (164ft) 135dB 10x F connectors gold-plated 8.0mm (0.31in)
DUR-line grounding block DEB 9-way made of high-quality cast - shielding > 90 dB - SAT/cable/FM/DVB-T
3. Do people still need an antenna for radio reception nowadays? Doesn’t everything run mostly over the internet now? If yes, what type of antenna should I get and what else should I consider?
S
Schlenk-Bär5 Oct 2019 13:55Nordlys schrieb:
A bit of a controversial take. With a grounded installation, lightning strikes and the TV is probably damaged.
With an ungrounded lightning strike, then the TV is definitely destroyed.
So what? Ungrounded and fine. K. Actually, it’s a bit different. About 25 years ago, a colleague installed a satellite system without grounding. It was already a long debate back then. There were several severe thunderstorms that destroyed all electronics in the neighbors’ houses. Only the colleague’s satellite system including the TV was still fine. Yes, I know, it could all be coincidence. Personally, I’m not sure how much grounding really helps—or doesn’t. The problem is: as far as I know, grounding is required from an insurance perspective, otherwise they won’t cover damages in a claim.
Nordlys schrieb:
A bit controversial. Grounded installation, lightning strikes, TV probably damaged.
Ungrounded lightning strike, then TV definitely damaged.That only the “TV is probably damaged” might hold true for low-energy inductive lightning current couplings from nearby strikes. The belief or hope that in, fortunately rare, direct strikes the damage always remains limited to the TV, one's own apartment, or the house is demonstrably mistaken and not heretical.
The Roman Inquisition already lacked the necessary expertise with Galileo; when it comes to lightning and surge protection, they are probably no more knowledgeable than you.
Nordlys schrieb:
So what? Ungrounded and good. K. Insurers usually settle minor damage, such as a single defective TV, without an on-site inspection after verification with SIEMENS images.
However, if there is a fire, wiring and outlets are blown out of the walls, and electrical or electronic devices are possibly destroyed even in neighboring apartments or common property, insurers will investigate the cause. In cases of personal injury, a public prosecutor may also get involved and—unmoved by "So what?"—examine whether an antenna, as an unintended lightning rod, was grounded according to the recognized rules of technology (i.e., minimum technical standards) and included in the equipotential bonding, or if this is a case under Section 319 of the Criminal Code, endangering construction safety.
Schlenk-Bär schrieb:
Personally, I am not sure how much grounding actually helps—or does not help. Direct grounding of antennas is purely a fire protection measure and cannot possibly provide the optimal protection that separated lightning protection systems combined with energetically coordinated SPD 1 lightning current arresters and SPD 2 surge protection devices offer.
Claims based on the intuition of laypersons unfamiliar with lightning protection—that lightning protection systems and grounded antennas attract lightning and allegedly increase strike frequency—contradict all scientific evidence.
Arguments that interruptions of complete equipotential bonding, especially through separate grounding electrodes, are supposedly safer, and recommendations not to connect cable shields to grounded antenna masts contrary to IEC 60728-11, reveal only one thing: the authors’ technical and normative incompetence.
As usual, this thread focuses one-dimensionally on direct strikes and ignores the far more frequent and cumulatively much greater indirect surge damage entering via power and telecom lines.
“Cost-cutters” who pass on the higher damages caused by omitted basic protection measures without any qualms to the community of insured parties always find excuses to justify their approach.
As a standards-compliant former moderator of the now-closed Netzwelforum hosted by the operator, I am curious how the admins in the housebuilding forum will deal with the unabashed promotion of non-compliant workmanship by @Nordlys.
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