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Signal

Multiswitch Signal MRP-508 (5-in/8-out, passive terrestrial TV path)
Kód tovaru: R68508
Bez DPHCena s DPHZľavaPlatnosť  
47,02 EUR56,42 EUR0 %
3-ročná záruka
Alternatívy
R70608Multiprepínač (5 vstupov, 8 výstupov) MSR-508 Terra - s terestriálnym TV zosilňovačom
Multiswitch Signal MRP-504 (5-in/4-out, passive terrestrial TV path)
Top view of the multiswitch
Multiswitch Signal MRP-504 (5-in/4-out, passive terrestrial TV path)
Another view
Multiswitch Signal MRP-504 (5-in/4-out, passive terrestrial TV path)
View of the included AC/DC adapter (output: 18 VDC / 1 A)
Key features:
  • radial topology,
  • inputs: 4 from a quatro LNB, 1 from terrestrial antenna,
  • outputs: 8 to SAT receivers,
  • passive FM/DAB/DVB-T path with On/Off 12 VDC switch,
  • isolation between inputs >25 dB,
  • high isolation between outputs: 28 dB (no crosstalk between bands and polarizations),
  • cable characteristics equalization,
  • very high maximum input level: 105 dBμV,
  • high maximum output: 100 dBμV,
  • voltage indicators in the power supply unit and the multiswitch (simple diagnostics of a power failure and/or short circuit in the terrestrial path),
  • ground connector,
  • compact size: 146×120×42 mm,
  • external power supply: 18 VDC / 1 A,
  • 3-year warranty.
The new family of Signal multiswitches enables the implementation of antenna systems for reception of satellite and terrestrial TV and radio signals in single-family houses as well as small residential and office buildings. The multiswitches are designed to work indoors. Due to star topology, all cables deployed to outlets in the antenna system go from a central node (from a single multiswitch or a group of them). A very high isolation among outputs eliminates the risk of crosstalk between bands and polarizations. The built-in cable characteristics equalization function can compensate the influence of cable attenuation that increases with frequency and cable length.
Due to the passive terrestrial path, we recommend to employ an antenna preamplifier or amplifier that will compensate the attenuation of the path (14 dB) and other passive elements in the distribution network (cables, connectors, outlets). When selecting the pre/amplifier, it is necessary to take into account the signal level from the terrestrial transmitters (depending on their power, distance, obstacles, antenna(s) gain).
The multiswitch has 12 VDC switch in the terrestrial path. When a pre/amplifier is to be powered via the signal cable, the switch has to be set to "12 V ON" position. Otherwise (in the case of a passive antenna or an amplifier with independent power supply e.g. AWS 1/1 F B1216), it must be set to "12 V OFF" position.
The supply voltage in the terrestrial antenna path is switched on by moving the switch up.
The both voltage indicators, in the power supply unit (PSU) and in the multiswitch, should continuously shine.
If after connecting a terrestrial antenna and switching on the power supply the LEDs in the power supply and the multiswitch blink, it indicates that there is a short circuit in the terrestrial antenna path. This can happen when the antenna is without an amplifier (DC-shorted by a balun) or the antenna cable is incorrectly installed (a short circuit between the central conductor and the braid). Then, it is necessary to disconnect the PSU unit immediately and eliminate this condition (by switching off the 12 VDC in the case of the passive antenna, or mending the cable connections).

The flashing of the power LEDs is due to an excessive current in the terrestrial antenna path.
It is necessary to disconnect the power supply unit immediately and eliminate this condition
(switch off the 12 VDC in the case of a passive antenna, or mend the cable connections).
The concept of passive terrestrial path with power supply option has some advantages:
  • minimizing installation costs in the case of good signal levels
  • independent choice of optimal amplifier (e.g. with independent gain adjustments in VHF and UHF bands, possibility to locate it directly in the antenna box or close to the antenna),
  • no need for an additional power supply.
The multiswitch distributes signals from one satellite, terrestrial TV and DAB/FM radio to a maximum of eight outlets, so it can feed up to eight single-tuner satellite receivers. A twin-tuner satellite PVR receiver requires two outputs of the multiswitch. In the case of an unused multiswitch output, it should be terminated with the R66205 75 ohm resistor.
In the case of multifamily buildings, we recommend to use SMATV solutions based on TERRA multiswitches of MR-5xx, MV-5xx, MR-9xx and MV-9xx series. High manufacturing standards, stability, reliability - make Terra multiswitches leading market products. They can cooperate with all satellite platforms.
Examples of pre/amplifiers that can be used for the terrestrial path of the multiswitch
LNA series preamplifiers
 B4007B4008B4009B4010
ModelLNA-101LNA-169LNA-177LNA-188
CodeB4007B4008B4009B4010
Gain [dB] 152430 32

 B4043B4053
ModelAPL-104APL-108
CodeB4043B4053
Gain  [dB] 20...2325...28
Example of high-gain multi-input amplifier
-
Outdoor Antenna Amplifier TERRA MA081L (FM+VHFIII-2xUHF) R82023
Gain: FM 20 dB, VHF 20 dB, 2xUHF 30 dB
Specifications
Name MRP-508
Code R68508
Inputs4xSAT
1xFM/DVB-T
Outputs8
Frequency range [MHz]Terr: 5-862
Sat: 950-2150
Attenuation [dB]FM/DVB-T 14±1.5
SAT 3
Return loss [dB]FM/DVB-T 8
SAT 10
Isolation [dB]Between H/V 25
Between inputs  
30
Between outputs
FM/DVB-T22
SAT28
Maximum input level [dBμV]105
Maximum output level [dBμV] 100 
Power supply for pre/amplifier [V/mA] 12/60 max
Power supply unit
IN: 90-264 V OUT:18 V / 1A
Operating temperature range [ºC] -20...+50
Dimensions [mm] 146×120×42
Bez DPHCena s DPHZľavaPlatnosť  
47,02 EUR56,42 EUR0 %
Alternatívy
R70608Multiprepínač (5 vstupov, 8 výstupov) MSR-508 Terra - s terestriálnym TV zosilňovačom
 
Multiswitch Signal MRP-508 (5-in/8-out, passive terrestrial TV path)
Kód tovaru: R68508
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