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Descriptions of the satellite LNB outputs and the multiswitch inputs depend on their manufacturers. To avoid confusion, our movie illustrates the differences and clarifies the issue.
€46.41
| Price | Disc. | Quantity | Validity |
|---|---|---|---|
| €46.41 | 0 % | from 1 piece |
Available
The MRP-908 Signal 9/8 multiswitch with passive terrestrial TV path makes it possible to implement RTV/SAT installations in detached houses and small residential and office buildings.
• Radial multiswitch
• Dual satellite and DVB-T/T2 signals
• 8 outputs
• Passive FM/DVB-T/T2 path equipped with On/Off switch 12 V DC
• Separation between inputs greater than 25 dB
• High separation of outputs: 30 dB
• Cable characteristic adjustment
• Very high input level: 105 dBμV
• High output level: 100 dBμV
• Compact dimensions
• Dual satellite and DVB-T/T2 signals
• 8 outputs
• Passive FM/DVB-T/T2 path equipped with On/Off switch 12 V DC
• Separation between inputs greater than 25 dB
• High separation of outputs: 30 dB
• Cable characteristic adjustment
• Very high input level: 105 dBμV
• High output level: 100 dBμV
• Compact dimensions
Details
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.
The switch is equipped with a passive terrestrial TV path, so it is recommended to use antenna preamplifier or amplifier, which will compensate for the attenuation of the multiswitch (14 dB) and passive elements in the installation (cable, outlets, connectors) in the terrestrial TV path. The selection of the amplifier should also take into account the signal level from the transmitter (power and suspension height of the transmitter, distance to the reception point, gain of the antenna, terrain between the transmitter and receiver). An up-to-date list of transmitters can be found at Data of terrestrial TV transmitters in Poland.
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 the terrestrial antenna and switching on the power supply, the diodes on the feeder and the multiswitch blink, this indicates a short circuit in the terrestrial antenna path. This can be caused by switching on the power supply in the terrestrial path at the antenna without an amplifier, or by a bad fitting of the connectors (short circuit between the central conductor and the cable shield braid). Immediately switch off the power and remove the cause.
The flashing of the power supply diode is caused by switching on the power supply in the ground path at the antenna without an amplifier or by a bad fitting of the connectors (short circuit between the central conductor and the cable shield braid). Immediately switch off the power and remove the cause.
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 device distributes signals from two satellite positions as well as terrestrial TV and FM radio to a maximum of eight outlets. It can therefore be connected to eight single-tuner satellite receivers. If the receiver has a PVR, two outputs of the multiswitch have to be reserved for its needs. Unused outputs of the multiswitch should be loaded with 75 Ohm resistor R66205.
For multi-family buildings, designed for building large SMATV/MATV systems, DIPOL offers multiswitch solutions of MR-5xx, MV-5xx, MR-9xx and MV-9xx series from TERRA. Excellent workmanship, stability of parameters and very low failure rate make these multiswitches recommendable even for the most demanding customers.
Key features:
- radial multiswitch
- inputs: 8 to two quatro converters, 1 terrestrial FM/DVB-T
- outputs: 8 to tuners SAT
- passive FM/DVB-T path equipped with on/Off switch 12 V DC
- separation between inputs greater than 25 dB
- high output separation: 30 dB (no crosstalk between bands and polarities)
- precorrection of cable characteristics
- very high input level: 105 dBμV
- high output level: 100 dBμV
- power supply and multiswitch voltage controls (simple diagnostics for no power supply or short circuit in the terrestrial path)
- ground connection
- compact dimensions 220×120×42 mm
- external power supply DC 18 V 1 A
- 3 year warranty
Examples of pre/amplifiers that can be used for the terrestrial path of the multiswitch
LNA series preamplifiers
APL series amplifiers
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
Gain: FM 20 dB, VHF 20 dB, 2xUHF 30 dB
Specifications
| Product type | Multiswitch | ||
| Number of LNBs | 2 × quatro | ||
| Series | MRP-9xx | ||
| Model | MRP-908 | ||
| Brand | SIGNAL | ||
| type | final | ||
| type | classic | ||
| Applications | Indoor | ||
| Type of cooperating converter | Quatro | Yes | |
| Type of cooperating converter | Wideband | No | |
| No. of inputs | 9 | ||
| No. of outputs | Legacy | 8 | |
| RF path | Active | No | |
| RF path | Preamplifier power supply | Yes | |
| voltage | V | DC 12 | |
| Current capacity | A | 0.25 | |
| passive | Yes | ||
| Loss | dB | 14 ± 1.5 | |
| Device specifications | |||
| Input | RF band | MHz | 5-862 |
| Input | SAT IF band | MHz | 950-2150 |
| signal level, RTV | dBµV | max 105 | |
| SAT IF signal level | dBµV | max 105 | |
| Output | RF band | MHz | 5-862 |
| Output | SAT IF band | MHz | 950-2150 |
| RTV signal level at outputs 1-4 | dBµV | max 100 | |
| RTV signal level at output 5-8 | dBµV | max 100 | |
| SAT IF signal level on outputs 1-8 | dBµV | max 100 | |
| Input separation | SAT IF | dB | >25 |
| Output separation | FM TV | dB | >22 |
| Output separation | SAT IF | dB | >28 |
| Power on RF inputs | H/Lo, H/Hi | V | 18 |
| Power on RF inputs | V/Lo, V/Hi | V | 13 |
| FM TV | V | 12 | |
| Control signals | 14/18 V, 0/22 kHz, tone burst, DiSEqC 1.0, DiSEqC 2.0 or related | ||
| Die-cast enclosure | No | ||
| Remotely powered | No | ||
| Built-in power supply | No | ||
| Compliance with relevant national legislation | No | ||
| Power supply | V/Hz | DC 18 | |
| Operating temperature | °C | -20...+50 | |
| Dimensions | mm | 222×142×42 | |
| Weight | kg | 0.6 | |
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