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MiniKom F broadband multiband amplifier

MiniKom F broadband multiband amplifier

MiniKom F broadband multiband amplifier

2 inputs: VHF/UHF-SAT (Terrestrial mix)

2-input multiband amplifier (VHF/UHF-SAT ) for SMATV systems. Amplifies the SAT band and mixes it with the terrestrial band (VHF/UHF) with low through losses.

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Grouped product items
Ref. 5363 196 VAC-254 VAC
Ref. 536310 108 VAC-132 VAC
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  • SAT signal amplification and passive terrestrial signal mixing with low through losses
  • PIN diode technology SAT attenuator
  • Power selection switch for LNB: local or remote. In local mode, both band and polarity can be configured using another two switches.
  • High-screening Zamak chassis

Main features
  • “F” connectors
  • SAT equalizer
  • Output signal LED indicator
  • Test output (-30 dB)
  • Can be wall-mounted using screws

Frequency margin MHz 950... 2150 47... 862
Gain dB 39... 48 - 1.5
Max.output level DIN VDE
dBμV > 122 -
Gain adjustment range dB 0...30 -
Equalizer dB 0...15
Vlnb LOC mA 300
REM 500
Vpp Vpp 0,6 ± 0,1
Mains voltage (5363 / 536310)
V~ 196 - 254 / 108 - 132
Total AC consumption (5363 / 536310) mA~ max. 130 / 200
W 13,5 / 14
Protection Level IP 20
Temperature operat. limits ºC -5 ... +45

In some cases, the transmodulation of specific satellite channels into COFDM will probably not be enough; this is why the option is available to add the IF of a satellite polarity to the COFDM signal flow. Furthermore, that signal flow may be transmitted over optical fibre by means of an appropriate low-loss optical transmitter, thus allowing to reach longer distances.

How can I add an IF signal to a DTT-only T.0X processing headend and transmit it through an optical fibre to distant spots?

1. T.0X processing headends (DVB/S2-COFDM and DVB-T/COFDM transmodulators, encoders/modulators, amplifier, etc.).

2. MiniKom amplifier ref. 5363 (Art. No. EV45).

3. SMATV optical transmitter ref. 238201 (Art. No. OMS1310).

4. SMATV optical receiver ref. 2311 (Art. No. OE1216)

The reason is that in satellite reception there are multiple working bands (4 voltage combinations - 13 V and 18 V - and tones - 0 KHz and 22 KHz -) that cannot share the same cable. The mentioned bands are: Low Vertical Band (13 V + 0 KHz), High Vertical Band (13 V + 22 KHz), Low Horizontal Band (18 V + 0 KHz), High Horizontal Band (18 V + 22 KHz). In order to select one of them, the appropriate voltage and tone have to be sent to the LNB. In a conventional installation it is up to the satellite receiver to perform this task.

When the installation has a single satellite receiver, it is the receiver itself which requests the desired band at any time and no collisions take place. Conversely, if several receivers are installed and each of them requests a different working band, the LNB will only take the higher voltage and higher tone into account. In other words, if a receiver is sending 18 V + 22 KHz (High Horizontal Band) and another one is sending 13 V + 0 KHz (Low Vertical Band), only the receiver requesting the High Horizontal Band - the highest of the requested bands - will work properly.

One solution would be to install an IF multiband amplifier like Ref. 5363. It would feed the LNB with a fixed voltage and a fixed tone so that multiple receivers could access the appropriate channels for the selected band