Broadcast Solutions DVB-T/T2, DAB/DMB, ISDB-T/T B, ATSC & Analog TV
Plisch (transmitter company) technical information about the transmitters
Historical Plisch Products 1960 1970 1990 Panorama Empfänger FMS100 FME488
Historical Plisch Products 1970 1980 Transmitter VHF 100W (right) / UHF 200W (left) Transmitter UHF 2x 5kW
Historical Plisch Products 1990 2000 2000 Transmitter UHF 5kW Transmitter UHF 10kW Transmitter DVB-T UHF 2,5kW
Leader in Innovative Broadcasting Over 60 years of experience in broadcasting Over 40 years of experience in transmitters Over 25 years of experience in digital transmission with DAB transmitters 20 years of experience in digital terrestrial television Engineered and manufactured in Germany, ISO 9001 & ISO 14001 certified
Company Facts Plisch is... a leading manufacturer of broadcasting equipment.... a specialist in terrestrial video and digital radio transmitters: DVB-T/T2, DAB/DMB, ISDB-T/TB, ATSC & Analog TV.... renowned for building reliable products with an established reputation for offering excellent service and support.... operating world wide.
Customers Worldwide
Series 4000 Low Power Medium Power High Power Air High Power Liquide
Low Power Transmitter UHF Band IV/V VHF Band III with Doherty Highly compact design and modular structure PLISCH s Compact Low Power Series Highest Efficiency with Doherty has a cost saving, modular design with Enhanced adaptive pre-correction the newest features available as e.g. IP seamless switching, ASI/IP seamless switching Doherty technology and Quality monitoring of MER and shoulder attenuation integrated display. Up to 600W (UHF/Doherty) Booster Concept
Medium Power Transmitter UHF Band IV/V VHF Band III with Doherty Our Medium Power Series expands our low power range. Highest Efficiency with Doherty An excellent and well-thought-out transmitter design Integrated cooling inside the power amplifier with optional ducted air outlet. Enhanced adaptive pre-correction The power amplifiers are cooled by integrated redundant blowers. ETI/ASI/IP seamless switching Quality monitoring of MER and shoulder attenuation Simple installation, service and maintenance
Ducted Air Cooled Transmitter UHF Band IV/V VHF Band III with Doherty Flexible air in- and outlet design save power costs in the transmitter and also at the station PLISCH s highly sophisticated Air Ducted System allows flexible transmitter cooling air flow. Highest Efficiency with Doherty This has a positive impact on electricity costs Highly compact design and modular structure for room air conditioning. Enhanced adaptive pre-correction Of course, it has all the latest features available such as Doherty ETI/ASI/IP technology seamless and IP switching seamless switching. Quality monitoring of MER and shoulder attenuation Up to 3000W /Rack
Liquid Cooled Transmitter UHF Band IV/V VHF Band III with Doherty Highly compact integrated liquid cooling unit PLISCH s Liquid Cooled Transmitter offers a unique compact design with the Highest Efficiency with Doherty highest power density per m 2. Highly compact design and modular structure Available with Doherty technology, Enhanced adaptive pre-correction IP seamless switching and integrated pump unit. ETI/ASI/IP seamless switching Quality monitoring of MER and shoulder attenuation Up to 1150W (Doherty) / 1300W (A/B) each amplifier
Integrated Liquid Cooling Unit LCU 4101 Integrated in the transmitter rack Full redundant solution Easy to maintain Pumps changeable during transmitter operation
Block Diagram Exciter 1PPS 10 MHz GPS Opt. LP / ASI 2 HP / ASI 1 IP 1 TS o IP IP 2 RF- Sense 2 (option) RF- Sense 1 (option) PLISCH s Liu Cooled Transmitter offers a unique compact design with the Modulator RF-Sense 1 RF-Sense 2 IP 2 rear connectors highest power density per m 2. RF RF 0dBm EPA a LAN control RF 0dBm AGC EPA b RF 0... +18dBm Reference OCXO (option) IP 1 LP / ASI 1 HP / ASI2 ASI out 10 MHz 1 pps Available with Doherty technology, RS232 EFP a µp unit IP seamless switching and integrated pump unit. I²C I²C I²C EFP b front panel front connectors 1PPS 10MHz ASI LAN control RF
Block Diagram Amplifier RF monitoring VEM3600 VEM3700 VEM3500 RKE1240 4,7dB VEM3600 PLISCH s Liu Cooled Transmitter RKE970 RKE1040 RKE1010 1:2 1:2 offers a unique compact VEM3600 design with the RKE1040 1:2 highest power density per m 2. VEM3600 2:1 RKE1020 2:1 BC3Q40C 3:1 RF out top side Available with Doherty VEM3600 technology, RKE1050 1:2 IP seamless switching and 36V 50V integrated pump unit. VEM3600 36V 50V RKE1030 2:1 power supply OK ON command alarm AGC ϕ APG4000 Automatic Phase & Gain-control 36V 50V input OK ACM4010 Automatic Control & Monitoring PSU3030 Power Supply Unit 36V 50V Control & Monitoring L1 L2 L3 PE bottom side RF in
Saving Energy The Doherty Principle Main PA PLISCH s Liu Cooled Transmitter offers a unique compact design with the P out highest power density per m 2. Doherty Operation Main PA P in Peaking PA Available with Doherty technology, λ/4 @Z T P out IP seamless switching and integrated pump unit. 2 λ/4 P out Low input level Medium input level P in
Saving Energy - The Precorretor Class AB Ideal PLISCH s Liu Cooled Transmitter offers a unique compact design with the highest power density per m 2. Available with Doherty technology, IP seamless switching and integrated pump unit. Transistor curve A/B Transistor curve (ideal)
Saving Energy - The Precorretor Doherty PLISCH s Liu Cooled Transmitter offers a unique compact design with the highest power density per m 2. Available with Doherty technology, IP seamless switching and integrated pump unit. Transistor curve Doherty Resulting Transistor curve Doherty
Saving Energy - Strategy PLISCH s Liquid Cooled Transmitter offers a unique compact design with the highest power density per m 2. Available with Doherty technology, Doherty Technology for low power consumption of PA IP seamless switching and High Performance Precorrector for highest output power integrated pump unit. Reducing Transistor voltage if nominal output power is not needed
Reserve Configurations Dual drive Passive Reserve Active reserve N+1 PLISCH s Liquid Cooled Transmitter offers a unique compact design with the highest power density per m 2. Available with Doherty technology, IP seamless switching and integrated pump unit. N+1 with Dual Drive
Typical CONFIGURATION TRANSPORT STREAM SWITCH N+1 CONFIGURATION SYSTEM CONTROL UNIT TXB TXA1 TXA2 EXCITER Power Amplifier
Reserve Configurations N+1 System Overview PLISCH s Liquid Cooled Transmitter offers a unique compact design with the highest power density per m 2. Available with Doherty technology, IP seamless switching and integrated pump unit.
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