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TV & SAT TV

Diagrams

Examples of antenna systems - FM/TV, SAT TV, WLAN, GSM
Antenna systems in single-family homes
Here are a few application diagrams of antenna systems that can provide guidance in selecting suitable installation.

We also recommend to read our articles: Some tips and hints for building developers and all who want to do properly antenna systems for TV, SAT TV, WLAN, GSM, DCS, 3G; Sets of channel amplifiers for S/MATV systems; SMATV systems; Professional multiswitch systems.

Our DIPOL Weekly Review presents on regular basis proposals to meet specific requirements of various cases, with descriptions of the equipment used.
We have chosen here the most typical solutions that are widely used in practice.
Diagrams shown below are models that can be developed depending on the creativity of the designer or installer (and the needs of the users). Clicking on a diagram you'll see it in full size, with detailed description.
Home DVB-T antenna systems
Antenna system for areas
with high signal intensity (up to 20 km
from high and medium power DVB-T transmitters)
Antenna system for areas within a 20-40 km
distance from the transmitter,
with signal distribution to 4 televisions
Antenna system for areas over 40 km
away from the transmitter,
with signal distribution to 4 televisions
Antenna system for receiving
DVB-T broadcasts from two transmitters
Antenna system for receiving DVB-T in UHF and VHF bands
Antenna system combining satellite
and DVB-T signals, with distribution to 4 outlets
FM, TV & SAT TV, CCTV, Wi-Fi and cellular systems
in homes
Diagram of basic TV antenna system (for single-family homes)
Reception of digital satellite platform throughout the house using only one smart card
Basic TV Antenna System Diagram
(for one-family homes)
Reception of digital satellite platform
throughout the house,
using only one smart card
Home LAN/WLAN system with wireless access to the Web, and IP CCTV monitoring
SOHO cellular antenna amplifier system (GSM)
Home LAN/WLAN system
with wireless access to the Web,
and with IP CCTV monitoring
SOHO cellular antenna
amplifier system (GSM)
Home antenna system (terrestrial and satellite), LAN/WAN and CCTV monitoring
Economical multi-purpose SAT-TV, CCTV, LAN/WLAN system
Antenna systems in multi-family buildings
Multiswitch installations in multi-family buildings require to create designs. The input parameters in the calculations are: network topology, type and number of the multiswitches, the type of cable used (attenuation) and the lengths of its sections.
The designer has to select the system components so that signal levels in all antenna outlets are within the recommended range.
To facilitate the design process, TERRA company has made available free of charge program which allows for quick and easy designing of any multiswitch system based TERRA multiswitches. The program enables the installer to get signal levels in different points of the system, taking into account input levels, the number and type of multiswitches and auxiliary equipment, type of coaxial cable and the lengths of its sections.

SatNet - the article explaining the design principles, with a link to download the program.
Below, on the left side we show examples of typical installations (SMATV systems) based on multiswitches, most commonly used in apartment buildings. On the right side there are screenshots of the corresponding models from the SatNet program.
Diagrams shown below are examples that can be developed depending on the creativity of the designer or installer (and the needs of the users). Clicking on a diagram you'll see it in full size, with detailed description. Each of the diagrams includes the link to the corresponding SatNet file. It is sufficient to install SatNet program and load the file to practically test the features of the program and modify the original design.
The diagrams can be classified in two ways, according to the number of satellites from which the programs are received (1 or 2) and according to the method of distribution of the satellite signals (pass-through or tap concept). Systems with multiswitch taps are more stable and reliable - a failure of one of the multiswitches does not affect the work of others (thanks to division into subnetworks). Therefore, large installations are built only as tap networks.
Pass-through multiswitch system in apartment building <br />(for one satellite)
Pass-through multiswitch system in apartment building <br />(for one satellite)
Installation diagram
Screenshot from SatNet utility
The systems is based on 5-input multiswitches.
It provides reception of terrestrial broadcasts and satellite programs from Astra or Hot Bird.
Pass-through multiswitch system in apartment building (for two satellites)
Pass-through multiswitch system in apartment building (for two satellites)
Installation diagram
Screenshot from SatNet utility
The systems is based on 9-input multiswitches.
It provides reception of terrestrial broadcasts and satellite programs from Astra and Hot Bird.
Tap multiswitch system in apartment building (for one satellite)
Tap multiswitch system in apartment building (for one satellite)
Installation diagram
Screenshot from SatNet utility
The system is based on TV/SAT taps and 5-input multiswitches.
It provides reception of terrestrial broadcasts and satellite programs from Astra or Hot Bird.
Tap multiswitch system in apartment building (for two satellites)
Tap multiswitch system in apartment building (for two satellites)
Installation diagram
Screenshot from SatNet utility
The system is based on TV/SAT taps and 9-input multiswitches.
It provides reception of terrestrial broadcasts and satellite programs from Astra and Hot Bird.
Feeding video signals from security cameras into SMATV systems
The diagram shows the idea of injecting signals from CCTV cameras to a multiswitch system based on bus-topology solutions from Terra. Installations of this type allow the delivery of radio, terrestrial and satellite TV up to several hundred outlets, using only one master antenna set.
Twin Channel Amplifier: Terra at420 (UHF, analog TV & DVB-T, AGC) Twin VSB Multi-standard Modulator Terra mt420 (ch. 6-12, 21-69, S1-S40)Multiband Amplifier Terra ma400 (FM/VHF/UHF)Amplifier for 5-input multiswitches: Terra SA 51 (class A)Coaxial Cable (75 ohm, class A): TRISET-113 1.13/4.8/6.8 [1m]Subscriber Terminal Outlet: Signal R-TV-SAT5/8 Multiswitch: Terra MV-508 (IF gain adjustment, class A)5/8 Multiswitch: Terra MV-508 (IF gain adjustment, class A)5/8 Multiswitch: Terra MV-508 (IF gain adjustment, class A)SAT/TV Tap: Terra SD-510 (class A)SAT/TV Tap: Terra SD-510 (class A)
An example configuration of a multiswitch system based on bus topology
for distributing digital SAT TV and DVB-T broadcasts plus analog CCTV signals

DVB-T multiplexes are distributed via a set of modern, digitally programmable channel amplifiers Terra at420 R82510. The images from 6 CCTV cameras are fed to the system through three twin modulators mt420 R82515. Each of theses units is equipped with two VSB modulators with a maximum output level of 90 dBuV, which fully satisfies the requirements of further processing.
A very important feature of the mt420 modulators is the possibility of mounting them on universal DIN rail, which takes much less space and allows for better cable management in comparison with conventional solutions based on standalone single-channel modulators.
Feeding video signals from security cameras in digital form into SMATV systems
The video signals from surveillance cameras can be injected into the RF distribution network with the use of MMH-3000 headend equipped with suitable modules producing output DVB-T multiplex(es). The main advantages of this solution are:
  • consistency of standards across the entire system - elimination of analog signals (there are only satellite DVB-S and terrestrial DVB-T signals, the latter including the video feeds from the cameras encoded as digital channels);
  • frequency bandwidth economy - one multiplex that occupies a single channel band can carry 6 video signals from CCTV cameras, instead of one signal in the case of analog modulation;
  • the same image quality throughout the whole distribution system - thanks to the features of digital modulation and demodulation the images are free from any interference and identical in any point of the system.
Twin Channel Amplifier: Terra at420 (UHF, analog TV & DVB-T, AGC) Multiband Amplifier Terra ma400 (FM/VHF/UHF)Amplifier for 5-input multiswitches: Terra SA 51 (class A)Coaxial Cable (75 ohm, class A): TRISET-113 1.13/4.8/6.8 [1m]Subscriber Terminal Outlet: Signal R-TV-SAT5/8 Multiswitch: Terra MV-508 (IF gain adjustment, class A)5/8 Multiswitch: Terra MV-508 (IF gain adjustment, class A)5/8 Multiswitch: Terra MV-508 (IF gain adjustment, class A)SAT/TV Tap: Terra SD-510 (class A)SAT/TV Tap: Terra SD-510 (class A)
An example of SMATV system based on bus architecture, distributing satellite TV and DVB-T channels
plus 6 video channels from security cameras - in the form of another digital DVB-T multiplex