User Manual
Contents
1. level control range O to 20 dB Equalization O to 20 dB Push pull amplifier can be deactivated 115 dBpV Power supply 24 V t 4 V Power consumption about 15 Watt Ambient temperature 10 C to 50 C Connectors and controls RF inputs 1 2 3 4 1 level control per input RF measurement output RF output with output level control with EQUALIZATION control A IEC sockets female 1 IEC socket female 1 IEC socket female 1 according to EN 50083 Part 5 DIN 45004 B 2 according to EN 50083 Part 3 CTBA at 60 dB IMA CENELEC norm norm with 42 channels 3 according to EN 50083 Part 3 CSOA at 60 dB IMA CENELEC norm with 42 channels ENGLISH FUNCTIONAL DESCRIPTION To OR To a0 C LEVEL CONTROL MEASURING DRUT A OUTPUT RF OUTPUT EQUALIZATION INPUT LEVEL CONTROLS 1 2 3 4 CONTROL The GaAs hybrid amplifier PAMP 4 This hybrid amplifier has been designed according to the latest GaAs technology It comprises 4 Interstage RF inputs I measuring RF output 30 dB and 1 RF output The level of each of the 4 inputs can be adjusted with the associated level control Due to the different cable loss over the frequency range of the cable system the equalization can be adjusted with the associated control The output level at the RF output of the hybrid amplifer can be reduced by about 20 dB with the associated control The block diagram of the hybrid2. PROFESSIONAL AMPLIFIER PAMP 4 Grundig SAT Systems PROFESSIONAL CONTENTS General Scope of delivery Technical data Functional Description The GaAs hybrid amplifier PAMP 4 Installation Connecting Installing the hybrid amplifier into a professional satellite unit and connecting it Lowering the output level Preparations Expert installation of the IEC coaxial right angle plug and the coaxial cable Setup Setting up the hybrid amplifier Service at the end of this user manual Subject to technical modifications and errors GENERAL a Scope of delivery 1 hybrid amplifier PAMP 4 I screened lead for the voltage supply 5 IEC coaxial right angle plugs with covers I user manual Technical data This product conforms with the requirements of the 73 23 EC and 89 336 EC guidelines of the European Council The standards EN 50083 2 EN 50083 2 Al en EN 50083 1 and EN 60065 required for the CE certification are kept to RF input Input frequency range Input impedance 47 MHz 862 MHz 75 Q Input level max 86 dBpV Input level control range O to 20 dB Amplification typ 37 dB Noise factor about 7 dB RF output Output frequency range 47 MHz 862 MHz Output impedance 75 Q Measurement output 30dB Max output level at 862 MHz 60 dB IMA 3rd order I 60 dB CTBA CENELEC 2 60 dB CSOA CENELEC 3 123 dBpV 8 dBpV 110 dBpV 8 dBpV 113 dBpV 8 dBpV Output
3. amplifier Level controls Inputs 1 4 gt A Diagonal adjuster Level control Equaliser E Output S1 903 S gt a Output o Measuring kjove output 30 dB gt gt gt S3 PREPARATIONS Expert installation of the IEC coaxial right angle plug and the coaxial cable Note For the installation only coaxial cables with a minimum diameter of 6 8 mm and a maximum diameter of 7 2 mm must be used 1 Remove the outer insulation the screening and the inner conductor of the coaxial cable accurately to the size and then fit the screening of the coaxial cable over the outer insulation see Fig 1 2 Slide the coaxial cable into the right angle plug press the inner conductor of the coaxial cable into the contact slot of the right angle plug and finally use an appropriate solde ring iron to solder together the parts see Fig 2 3 Use appropriate crimp pliers to firmly press together the metal shoe arrow of the right angle plug see Fig 3 Press the enclosed cover into the opening of the right angle plug Recommendation Appropriate crimp pliers with the required inserts can be purchased from Alfred Knitter GmbH Colditzstrafje 28 D 12099 Berlin Tempelhof Tel 030 75 68 06 0 Fax 030 75 68 06 44 E Mail info knitter de vu ENGLISH PREPARATION Lowering the output level If you need a lower output level but want to retain the noise voltage ratio you
4. can change the jumpers as shown below 1 Use a Torx screwdriver TX6 to remove the 10 screws and take off the top of the housing 2 Plug in the jumpers as shown below Signal path a the push pull amplifier is switched off factory setting 3 Attach the upper housing again and screw it on INSTALLATION CONNECTING Installing the hybrid amplifier into a pro fessional satellite unit and connecting it Important Due to its rather high power it is not allowed to use the hybrid amplifier inside the professional satellite unit STC 332 Attention Before installing or replacing the hybrid ampli fier satellite boxes or the power supply and control unit it is absolutely necessary to dis connect the power supply plug of the professio nal satellite unit headend from the wall outlet 1 Connect the IEC plug of the enclosed screened lead with the HF socket 24 V on the back of the hybrid amplifier and the other end of the lead with the 24 V contact on the backplane of the professional satellite unit see Figure 2 Installl the hybrid amplifier into the plug in location next to the power supply and control unit of the professional satellite unit and then fix it with the screws to the mounting frame Supply voltage of the hybrid amplifier 24 V via the screened lead 3 Connect the RF output sockets output collector of the professional satellite unit with the RF input sockets of the hybrid amplifi
5. er using RF cables Note Terminate not used inputs of the hybrid amplifier with 75 Q resistors 4 Connect the power supply plug of the professional satellite unit with a wall outlet 220 240 V 50 60 Hz Important The professional satellite unit is only comple tely separated from the mains voltage by pul ling the power supply plug N ENGLISH LEVEL CONTROL MEASURING INPUTS 2 4 OUTPUT RF OUTPUT EQUALIZATION INPUT LEVEL CONTROLS 1 2 3 4 CONTROL Setting up the hybrid amplifier Important Precondition for the setup of the hybrid amplifier is a correct installation connection setup and level adjustment of the satellite boxes fitted in the professional satellite unit 1 Turn all 6 level controls of the hybrid amplifier clockwise to their right end stop maximum level 2 Connect a measuring receiver to the RF output of the hybrid amplifier 3 Measure the RF output level of the hybrid amplifier and then adjust the required output level using the output level control 4 Measure the output level amplification of every connected RF input and then adjust the same level using the associated input level controls The nominal value is the output level of the analog TV channels Adjust the output levels of digital TV channels 64 QAM about 6 to 10 dB lower Adjust the output levels of FM radio programmes about 10 dB lower 5 Adjust the RF output level of the hybrid amplifier usi
6. ng the output level control 6 Only if applicable It is possible to adjust the equlization of the cable system s cable loss using the EQUALIZATION control GSS Grundig SAT Systems GmbH e Beuthener Str 43 e D 90471 N rnberg http www gss tv
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