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Manafacture: Kathrein File size: 6.76 mb File name: Language of manual:

hinges: 267 mm 4) As of device version Bxx from 570-870 MHz 5) For VGP 9033-1G in 1 dB steps 6) For VGF 90xx at 30 dB gain 7) For VGF 90xx at 20 dB gain VGO 939-1G/ VGF 939-1G DESCRIPTION VGO 939-1G/VGF 939-1G The compact amplifier with slide switches – VGO 939-1G/VGF 939-1G In addition to the devices with electronic setting, Kathrein offers yet another highly innovative compact amplifier platform. This particularly economical series requires no equaliser cards or attenuation pads. All adjustments can be easily carried out using slide switches. Simple, yet effective The required attenuation and slope values are set with a combination of several slide switches. The advantages are obvious. Besides saving plug-in cards, this allows exact reproduction of setting values without requiring a measuring instrument. Replacement of the device, for example, is thus much easier. When slide switches are shifted, a virtually uninterrupted signal flow is guaranteed – multimedia services remain undisturbed. Maximum reliability The implemented slide switches fulfil the highest demands regarding reliability and endurance. Dual gold-plated contact reeds, increased contact pressure and a separate catch spring ensure ultimate reliability of the switches, which have been proven and tested 100,000 times. • Latest GaAs-MMIC technology • Innovative operational concept: - Settings via slide switches - Device settings can be reproduced exactly - Fewer plug-in cards and variable attenuators needed • Integrated diplexers allow optimised data • Very high output level at lowest intermodulation products (also for interstage attenuation) • Pluggable loop-through output • One or two output(s) configurable • Built-in active return path with various setting possibilities • Return path can also be operated passively • 15 MHz high pass can be activated in the return path • Ingress Control Switch (ICS) • Monitorable with HMS or DOCSIS transponder (option) • Insert position for additional functions in the forward path (e.g. de-emphasis) • Bi-directional test socket on the amplifier input • Directional coupler test socket on amplifier output and in return path • Test signals can be coupled in for the return path • LED as function indicator • Highly efficient switched-mode power supply unit • Advanced remote power concept in the VGF 939-1G: Newly developed remote feed coils Remote feed current: Max. 7 A per connection, ................................... local insertion max. 10 A totally Remote feeding possibilities: By choice via all RF connections or local connector (power passing) • Surge absorber on all RF connections and in switched-mode power supply unit • Power management: Unused amplifier stage switch-off for reduced power consumption • Die-cast housing with PG 11 connectors • Easy connection of large cable fittings due to extended thread distance • Outdoor operation possible, housing protection class: IP 54 • Test sockets: F-type connectors (internal) VGO 939-1G/ VGF 939-1G Input insert position e.g. for de-emphasis equaliser Insert position for monitoring transponder (not supplied) Forward path: Adjustment of attenuation and equalisation using slide switches LED (Power supply function)n) Output splitter field Direct supply to device up to 10 A F-type test socket for the return path (-10 dB) F-type test socket on output for return path measurement or feed-in (-20 dB) Splitter field loop-through input F-type test socket bidirectional on input (-20 dB) Return path switchable passive/active Integrated return path amplifier, adjustable with slide switches DETAILS, ACCESSORIES, BLOCK DIAGRAM, DELIVERY STATUS Attenuation orpre-emphasisCurrentTemperatureUbICSMonitoring transponder2 / 0 / 4 dB2 / 0 / 4 dB6 / 0 / 12 dB6 / 0 / 12 dB5 - 65 MHz85 - 1006 MHz85 - 1006 MHz5 - 65 MHz4 / 0 / 8 dBTest 3-10 dB4 / 0 / 8 dB0 / -8 dB / "switched-off" InterstagePre-emphasisPre-emphasisdBPre-emphasis5-65 MHzInternalAttenuationAttenuationAttenuationAttenuationdBdBdBIngressdetectionOption15 AT3,15ALSNTOptionmax. 7 Apower passing: 10 A32-72 VACInputPG11Loop throughPG11Output 2PG11Output 1PG11= slide switchesTest 2 -20 dBOptionDe-emphasisdBOutputsplitter fieldInternalReturn path measurementor feed-inDACBEA/B/E/D = 15-A fuseOptionTest 1-20 dBInternalbi-directionalLoop throughsplitter fieldv = 14 dB-30 dB-20 dB2 / 0 / 4 dB3 / 0 / 6 dB30 dB21 dBSwitched-off 5 MHz 15 MHzdB6 / 0 / 12 dBdBAttenuation1 / 0 / 2 dB3 / 0 / 6 dBpassiveactive(Return path: P = 70 dB.V)nominal(P = 60 dB.V)nominal0 / 10 dBS10 Delivery status • ERZ 940 (Order no. 24510059): De-emphasis equaliser (cable-analogue) 862 MHz, 7 dB fixed • ERD 810 (Order no. 24510110): De-emphasis equaliser • ERD 813 (Order no. 24510117): De-emphasis equaliser • ERD 814 (Order no. 24510120): De-emphasis equaliser/attenuator • ERZ 630 (Order no. 24510108): Equaliser 47-630 MHz, switchable in 2-dB steps from 2-18 dB • ERS 800 (Order no. 24510109): System equaliser 862 MHz • TVM 850/H (Order no. 26210077): Monitoring transpon...

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