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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.
€308.05
| Price | Disc. | Quantity | Validity |
|---|---|---|---|
| €308.05 | 0 % | from 1 piece |
Available
MR912 9 in/12 out multiswitch with power supply and active/passive terrestrial TV path dedicated for small and medium installations with distribution of RTV/SAT signals.
• 9/12 multiswitch for radial topology
• Built-in cable loss correction
• Groups of outputs with different output levels
• Isolation between inputs better than 30 dB
• Powering of optional terrestrial TV preamplifier
• Active terrestrial TV path with LTE filter (47-790 MHz)
• Passive terrestrial TV path (5-862 MHz)
• Built-in power supply
• Die-cast housings guarantying high screening efficiency (class A)
• Built-in cable loss correction
• Groups of outputs with different output levels
• Isolation between inputs better than 30 dB
• Powering of optional terrestrial TV preamplifier
• Active terrestrial TV path with LTE filter (47-790 MHz)
• Passive terrestrial TV path (5-862 MHz)
• Built-in power supply
• Die-cast housings guarantying high screening efficiency (class A)
Details
Radial multiswitches of MR series are dedicated for small and medium (4-70 outlets) SMATV systems with distribution of the first SAT IF and terrestrial TV signals. The multiswitches have to work inside buildings. In the case of larger systems with multiple multiswitches, it is necessary to use splitters and taps of SD-9XX series to extend the signal lines.
Radial multiswitches of the MR series are dedicated for installations based wholly or partly on star topology, where the cables from the terminal outlets converge at the point of installation of the multiswitch or a group of multiswitches. They are therefore ideal for applications in single- or multi-family houses. However, it is possible to use MR multiswitches in more complex systems. Then the built-in power supply can be used to power other components used in the installation.
The MR-912L R70812 multiswitch has active (amplified) terrestrial and satellite TV paths. Signal level adjustment for each of the satellite and DVB-T paths (47-790 MHz) is performed using dedicated switches. This method of configuration ensures greater stability of the set parameters in relation to traditional solutions based on potentiometers. In addition, the MR-912L R70812 switch has been equipped with a passive TV signal path (5-862 MHz) to be used for the return channel. The device does not support both active and passive TV signal paths simultaneously.
The active DVB-T terrestrial signal path has a built-in filter for LTE signals to eliminate unwanted signals in the 800 MHz band (791-862 MHz frequencies) for data services (LTE).
The die-cast housing provides high screening efficiency by preventing the penetration of interfering signals to the unit.
The input SAT signals to multiswitch systems should be provided by QUATRO LNBs.
Key features:
- radial multiswitch
- built-in cable pre-correction
- grouping of outputs according to output level
- separation between inputs greater than 30 dB
- possibility to supply preamplifier for terrestrial antenna
- active terrestrial signal path equipped with LTE filter (47-790 MHz)
- passive TV signal path (5-862 MHz)
- built-in power supply
- cast casing guaranteeing a high level of shielding - class A
A device from the well known Terra company that specializes in producing professional multiswitches for SMATV systems. Excellent workmanship, stable parameters and very low failure rate make TERRA multiswitches universally recommended.
An unquestionable advantage of MR-9XX multiswitches is the differentiation of output levels for different outputs. This guarantees similar signal levels in outlets located at different distances from the device. Additionally, the designer has used here pre-correction of the attenuation characteristics of the coaxial cable - signals of higher frequencies have higher levels, thanks to which the attenuation of the cable is properly compensated.
The device is powered with 230 VAC power network. All obligatory precautions for working with dangerous live voltages should be obeyed.
Recommended Library titles:
Specifications
| Product type | Multiswitch | ||
| Number of LNBs | 2 × quatro | ||
| Series | MR-9xx | ||
| Model | MR-912L | ||
| 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 | 12 | |
| RF path | Active | Yes | |
| RF path | Preamplifier power supply | Yes | |
| voltage | V | DC 12 | |
| Current capacity | A | 0.1 | |
| passive | Yes | ||
| Device specifications | |||
| Input | RF band | MHz | 47-790 (active path), 5-862 (passive path) |
| Input | SAT IF band | MHz | 950-2150 |
| Gain control in RF path | dB | 0...-15 with step 1 | |
| gain control in SAT IF path | dB | 0...-12 with step 4 | |
| Output | RF band | MHz | 47-790 (active path), 5-862 (passive path) |
| Output | SAT IF band | MHz | 950-2150 |
| RTV signal level at outputs 1-4 | dBµV | 85 | |
| RTV signal level at output 5-8 | dBµV | 85 | |
| RTV signal level at output 9-12 | dBµV | 83 | |
| SAT IF signal level on outputs 1-12 | dBµV | 93 | |
| SAT IF path gain – built-in pre-correction of cable attenuation characteristics | outputs 1-4 | dB | 9...14 |
| SAT IF path gain – built-in pre-correction of cable attenuation characteristics | outputs 5-8 | dB | 8...12 |
| outputs 9-12 | dB | 7...10 | |
| RF path amplification – built-in pre-correction of cable attenuation characteristics | outputs 1-4 | dB | -28 (passive path), 1...5 (active path) |
| RF path amplification – built-in pre-correction of cable attenuation characteristics | outputs 5-8 | dB | -28 (passive path), 0.5...4 (active path) |
| outputs 9-12 | dB | -28 (passive path), 0...3 (active path) | |
| Input separation | SAT IF | dB | >30 |
| Output separation | FM TV | dB | >35 |
| Output separation | SAT IF | dB | >30 |
| Return loss | TV/SAT | dB | >30 |
| Return loss | SAT/RF | dB | >40 |
| Power on RF inputs | H/Lo, H/Hi | V | 18 |
| Power on RF inputs | V/Lo, V/Hi | V | 14 |
| FM TV | V | 12 | |
| Current on RF inputs | 18 V & +14 V & +12 V | A | <1 |
| Current on RF inputs | 14V@12 V | A | <0.5 |
| 12V | A | ≤0.1 | |
| Current drawn | from receiver | A | 0.06 |
| Control signals | 14/18 V, 0/22 kHz, tone burst, DiSEqC 1.0, DiSEqC 2.0 or related | ||
| Die-cast enclosure | Yes | ||
| Remotely powered | No | ||
| Built-in power supply | Yes | ||
| Screening efficiency class | A | ||
| Compliance with relevant national legislation | Yes | ||
| Power supply | V/Hz | AC 230/50-60 | |
| Power consumption | W | 4 | |
| Operating temperature | °C | -20...+50 | |
| Dimensions | mm | 253 × 135 × 52 | |
| Weight | kg | 1.44 | |
Videos
Designing antenna systems with the use of free software from TERRA - SatNet application. The program allows to prepare the project in graphical form, to determine signal levels in all outlets and verify if they are compliant with standards, and to decide whether to use equalization function of the amplifiers. The program enables the user to archive the designs.
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