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TV & SAT TV

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Instalații moderne multiswitch – Signal MRP
Signal MRP multiswitches with passive DVB-T/DAB/FM path have been designed for small/medium size SAT installations built in star topology. One device or a group of such multiswitches feeds the subscriber outlets from individual outputs of the multiswitch(es). This topology is typical for applications in single-family homes and in buildings inhabited by several or so families.
Signal MRP multiswitches
 R68504R68508R68512R68908
ModelMRP-504MRP-508MRP-912MRP-908
CodeR68504R68508R68512R68908
Inputs/Outputs 5/4 5/85/12 9/8
12 VDC ON/OFF switch
Yes Yes Yes Yes
The MRP series has passive terrestrial path. If the terrestrial signals in the location of the terrestrial antenna(s) are not strong enough, it will be necessary to use an antenna preamplifier, or even a high gain outdoor amplifier such as MA080L R82022.

Examples of terrestrial antenna pre/amplifiers
LNA preamplifiers
 B4007B4008B4009B4010
ModelLNA-101LNA-169LNA-177LNA-188
CodeB4007B4008B4009B4010
Gain [dB] 152430 32
APL amplifiers
 B4043B4053
ModelAPL-104APL-108
CodeB4043B4053
Gain [dB] 20...2325...28
A multi-input high-gain amplifier
Outdoor Antenna Amplifier TERRA MA080L (FM-VHFIII-UHF)
View of the TERRA MA080L R82022 amplifier (FM+VHFIII+UHF)
Masthead antenna amplifier Terra MA080L R82022 has FM (88-108 MHz), VHFIII (174-230 MHz), and UHF (470-790 MHz) inputs. Each path has a separate gain adjustment, the UHF path has built-in LTE 800 filter.
The diagram below shows an antenna system composed of A2670, A0710, and A0221 antennas. The masthead antenna amplifier Terra MA080L R82022 has FM (88-108 MHz), VHFIII (174-230 MHz), and UHF (470-790 MHz) inputs. Each path has a separate gain adjustment, the UHF path has built-in LTE 800 filter. The Signal MRP-504 R68504 multiswitch distributes the satellite signals from the A98257 QUATRO LNB, and the amplified terrestrial DVB-T and FM/DAB signals, to four subscriber terminal outlets Signal R694100.
Multiswitch Signal MRP-504 (5-in/4-out, passive terrestrial TV path)Subscriber Terminal Outlet: Signal R-TV-SATSubscriber Terminal Outlet: Signal R-TV-SATSubscriber Terminal Outlet: Signal R-TV-SATSubscriber Terminal Outlet: Signal R-TV-SATUniversal QUATRO LNB: Inverto HOME Pro 0.3dBSteel Satellite Dish: TRIAX 80 TD (dark gray)FM Antenna: Dipol 1RUZ PM B (omnidirectional H+V)DAB / DVB-T Antenna: DIPOL 7/5-12UHF TV Antenna: DIPOL 44/21-60 Tri DigitOutdoor Antenna Amplifier TERRA MA080L (FM-VHFIII-UHF)
A small installation providing DVB-S/S2, DVB-T, and FM/DAB signals to 4 outlets

The configuration with the MA080L R82022 amplifier allows for adjustment of the gain in a wide range for each band: 20 dB for FM and VHF, 30 dB for UHF.
Other band/broadband amplifiers for use in the terrestrial path
Broadband amplifiers in terrestrial paths of multiswitch systems amplify the signals received by antennas to ensure proper levels in all outlets. It includes the compensation of losses on passive network elements (cabling, splitters, outlets). The amplifiers have one broadband input or several band inputs with individual gain adjustment and a broadband output. They usually ensure compensation of the attenuation of the cabling, changing with frequency, and are equipped with power supplies. The amplifiers are characterized by high maximum output levels of over 100 dBμV.
Indoor Antenna Amplifier: AWS-1033 SilverLine (FM/BIII/2*UHF/33dB)
Indoor antenna amplifier AWS-1033 (FM/BIII/2*UHF/33dB) B11583
The suitable model should be chosen depending on the local needs (required bands or frequency range, gain, output level).
NameAWS-141SEAI-200AWS-1141AWS-1033
 B11687 R90450 B11683B11583 
CodeB11687R90450B11683B11583
Band(s) [MHz]87-79047-230
470-862
47-86287-110, 174-230 471-862
Max. output level [dBμV]106105106109
Gain [dB]20...2314 (VHF), 24 (UHF)20...2130...34
Power [VDC]/[mA] 12/65-12/25012/160
Input(s)/Output(s)1/11/21/14/1+1(test)
LTE filter
YESNONONO
Multiswitch Signal MRP-504 (5-in/4-out, passive terrestrial TV path)Subscriber Terminal Outlet: Signal R-TV-SATSubscriber Terminal Outlet: Signal R-TV-SATSubscriber Terminal Outlet: Signal R-TV-SATSubscriber Terminal Outlet: Signal R-TV-SATIndoor Antenna Amplifier: AWS-141SEUniversal QUATRO LNB: Inverto HOME Pro 0.3dBSteel Satellite Dish: TRIAX 80 TD (dark gray)Professional VHF and UHF DVB-T Antenna Set (H/V): DIPOL 15/5-12/21-60
Another example of small multiswitch installation

Video from security cameras in antenna installation
To convert an audio/video signal from a source like a PC, video player, or surveillance camera into RF signal distributable in the antenna system, it is necessary to employ an RF modulator. Digital TV modulators are equipped with one or more HDMI input(s) and RF output that injects the signal to the installation in the form of a TV channel that can be received by any television connected to the antenna system.
HDMI to DVB-T encoder/modulator R86111 encodes and modulates Full HD (1920x1080-60p) signal provided to its HDMI input to RF signal in accordance with DVB-T standard (COFDM). This way, the device can distribute the surveillance video from the output of a DVR/NVR to multiple televisions, via typical coaxial cabling used in antenna systems, which also can make a good alternative for applications distributing the video with the use of HDMI splitters and cables.
HDMI to DVB-T Encoder/Modulator (Full HD 1080p/60Hz, for CCTV systems)
View of the HDMI to DVB-T R86111 encoder/modulator (RF OUT side).
The DIP switches allow the user to select a TV channel.

Subscriber Terminal Outlet: Signal R-TV-SATHDMI to DVB-T Encoder/Modulator (Full HD 1080p/60Hz, for CCTV systems) HD-TVI TURBO HD 4.0 Camera: Hikvision DS-2CE56D8T-IT3E (ceiling, 1080p, 2.8mm, 0.005 lx, PoC, IR up to 40m)Inductive FM/TV 2-Way Splitter RI-2/1 FOutdoor Antenna Amplifier TERRA MA080L (FM-VHFIII-UHF)UHF TV Antenna: DIPOL 44/21-60 Tri DigitDAB / DVB-T Antenna: DIPOL 7/5-12FM Antenna: Dipol 1RUZ PM B (omnidirectional H+V)Universal QUATRO LNB: Inverto HOME Pro 0.3dBSteel Satellite Dish: TRIAX 80 TD (dark gray)Multiswitch Signal MRP-508 (5-in/8-out, passive terrestrial TV path)

The Signal R86111 modulator converts the Full HD signal from the HDMI output of the DVR into a DVB-T channel. The A2670, A0710, and A0221 antennas (example) are connected to the inputs of the masthead antenna amplifier Terra MA080L R82022. Each path ( FM: 88-108 MHz, VHFIII: 174-230 MHz, and UHF: 470-790 MHz) has a separate gain adjustment, the UHF path also has built-in LTE 800 filter. The MRP-508 R68508 multiswitch distributes the satellite signals from the A98257 QUATRO LNB and the amplified terrestrial DVB-T and FM/DAB signals to eight subscriber terminal outlets Signal R694100. The signals from the antennas and from the modulator are combined by the RI-2/1 F E2094 FM/TV 2-way splitter. The MRP-508 R68508 multiswitch provides 12 VDC voltage that goes through the DC pass-through path of the splitter to the MA080L R82022 amplifier.
 
George Popescu
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