Satellite system - buying guide and installation

Hi. Unfortunately, I have no idea about satellite dishes and electrical work, so I will have a dish installed by a professional soon. Now I am just 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 together in the attic or distributed from there into the rooms.

I had chosen the following dish: DUR-line Select 85cm/90cm Anthracite Satellite Dish - 3 x Test + Very Good + Aluminum Sat Mirror

Along with this LNB + multiswitch DUR-line +Ultra Quattro LNB - only for multiswitch black - with LTE filter

DUR-line MS 5/8 Blue eco power-saving multiswitch - for 8 SAT participants/TV - no power supply necessary - 0 Watt standby multiswitch [Digital, HDTV, FullHD, 4K, UHD]

Questions:

1. If I understand the description of the dish and the questions in the reviews correctly, no roof mast and no rafter bracket are included. So I would need those separately, right? How about this one: PremiumX Basic X120-48 SAT TV rafter bracket 120cm mast hot-dip galvanized steel rafter mounting for satellite antenna satellite dish | cable feedthrough mast cap 10 coax cables

2. Also cables and a grounding block, right?

50m PremiumX Deluxe PRO coaxial cable BLACK 135dB 5-fold shielded, pure copper Sat antenna cable 50m 135dB 10x F connectors 8.0mm gold-colored

DUR-line grounding block DEB 9-fold made of high-quality cast - shielding >90 dB - SAT/Cable/FM/DVB-T

3. Do you still need an antenna for radio reception nowadays? Everything runs over the internet anyway, right? And if yes, what do I use for that and what else do I need to consider?

1. Use the Hercules as a rafter holder. All these "basic" parts are useless. 2. You need not only the grounding block but also the cable and for potential equalization and a grounding cable. This must not consist of many strands but be solid, meaning one strand or a few. Cross-section 16 sqmm. Execution as shown in the picture.

Why black and white cables? You can just use everything in the same color.

Why such a heavily shielded cable? For me, something much simpler has worked for decades. It is also much cheaper.

Whether F-connectors need to be gold-plated is a matter of different opinions. I think you don't need something like that.

You can also receive a lot of radio stations via Sat. So you don't necessarily need a separate radio antenna. Unless you want to listen to the local station as well.

If you install two LNBs, you can receive not only Astra but also Hotbird. Whether this is interesting for you, you have to decide yourself. However, you will need a different multiswitch then.

Unfortunately, I have no knowledge of satellite dishes and electronics at all, so I will have a dish installed by a professional soon. Now I am in the process of ordering the "materials."

The professional installs components that the client, who says he has no knowledge, ordered. ops:

Exactly. If it is a professional and not the neighbor who gained his knowledge from 10 MediaMarkt visits per year, then he also knows the materials. If it is a professional with an invoice, he also has them with him.

2. You need not only the grounding block but also the cable and for the equipotential bonding and a grounding cable. This must not consist of many strands but be solid, that is one strand or few. Cross-section 16 sq mm. Design as shown in the picture.

One, two, many?

Fine-stranded and also multi-stranded conductors are more suitable for lightning currents because of the skin effect, but solid wires are easier to fix against the electrodynamics of LEMPs. Fine-stranded connecting cables in high-voltage laboratories and fine-stranded equalizing strips with manufacturer-assembled cable lugs are common in lightning protection construction but are prohibited in antenna construction for corrosion protection reasons.

A cross-section of 16 mm² for grounding conductors requires the material copper, alternatively 25 mm² aluminum or 50 mm² lightning conductor wire are also permitted, which—all subject to terminals designed for this purpose—according to Table D.3 of IEC 62305-1 withstand even rare monster LEMPs with 250 kA without damage.

Everyone knows that a chain is only as strong as its weakest link. In antenna grounding, however, this truism is ignored by do-it-yourselfers as well as electricians, and connector materials of questionable lightning current carrying capacity are installed in ignorance of the test standards.



CONCLUSION: If the rail renamed by PAS to HES and the connection at the antenna carrier are certified as Class H = 100 kA, multi-stranded conductors (e.g., 16 mm² Cu with 7 x 1.7 mm) are also permissible. Also, solid single wires that are easier to fix may only be connected to certified Class H terminals and HES for lightning protection equipotential bonding.

The graphic on the right still shows an equipotential bonding conductor that is included exclusively “loop-free” via the grounded antenna carrier in the equipotential bonding. Since hardly anyone unplug their devices during thunderstorms anymore, which closes the loop, and in combination with grounding-required rooftop antennas with a BK or Telekom network, loop freedom is not feasible, according to current IEC or DIN EN 60728-11 (VDE 0855-1):2019-02 the equipotential bonding may also be additionally connected to the HES or a PE.

Below is an example image how it will appear similarly without my comment in the next IEC 60728-11:


In a new building, the lead from a separate lightning rod or a grounding conductor is ideally routed outside without dangerous proximities and connected to its own terminal lug of the foundation/ring earth electrode. The additional support earth electrodes of type A shown in the example images of the standards are only optional for HES located far inside and can be omitted in well-planned grounding systems of new buildings.

Building earth electrodes created in compliance with DIN 18014:2014-03 compatible with standards are as rare as compliant antenna grounding systems with certified Class H connectors. Therefore, try googling Who+may+install+foundation+earth+electrodes, it is probably once again too late.

I advise against cheap cables with Staku inner conductors or fivefold pointless shielding with fragile and intermodulation-prone aluminum braid. The alleged 135 dB shielding attenuation of such cables is usually dubious “peak-oriented” voodoo values.