Instruction d'utilisation Sennheiser SZI 1029

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SZI 1029
IR Audio Transmission Technology | Modulators/Radiators
General Description
The SZI 1029 is a 5-W high-power radiator for use with all wideband and narrow-
band modulators. The radiator is automatically switched on by the RF carrier and
2
can cover areas of up to 800 m in single-channel operation. High-quality GaAlAs
transmitting diodes have been arranged in 12 independent groups to ensure
re lia b l e transmiss ion. A malfunction indicator is triggered when the radiating power
is r

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SZI 1029-10 IR Audio Transmission Technology | Modulators/Radiators General Description With a radiating power of 10 W, the SZI 1029-10 is the most powerful Sennheiser radiator. Like the SZI 1029, it is fitted with an automatic on/off function, indepen- dent diode groups and a malfunction indicator – but with twice the amount of IR 2 diodes, the SZI 1029-10 is able to cover areas of up to 1,600 m in single-channel operation. Technical Data IR diodes............................................

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SZI 1029 IR Audio Transmission Technology | Modulators/Radiators SZI 1029 The SZI 1029 is a high-power radiator for wideband or narrow-band signals from any modulator. Its mains unit automatically adapts to mains voltages of 85 – 265 V and mains frequencies between 50 and 60 Hz, the individual product variants only differing in the type of mains cable supplied. The only exception is the SZI 1029-24 which operates on 24 V DC. For 24-V equipment, mains voltage regulations are no longer applic

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SZI 1029 IR Audio Transmission Technology | Modulators/Radiators When planning and installing an IR system you have to pay attention to use the cor- MONO MULTI rect terminating impedance for the radiator chains. Sennheiser IR modulators have MONO MULTI CHANNEL CHANNEL INPUT OUTPUT INPUT OUTPUT an output impedance of approx. 50 Ω , whereas the radiators have a much higher input impedance of > 5 kΩ . This “headroom” allows you to connect many radiators without any problems. In RF transmission,

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4 30˚ 20˚ 10˚ SZI 1029 IR Audio Transmission Technology | Modulators/Radiators Coverage Area and Polar Diagrams 10˚ 10˚ 150m The coverage area of the SZI 1029 and SZI 1029-10 high-power radiators depends 140m on the number of channels transmitted (see also “Multi-Channel Operation”). 20˚ 20˚ 2 130m For single-channel applications, the coverage area is up to approx. 800 m for the 26dB 2 SZI 1029 and up to 1,600 m for the -10 variant. The chapter “Practical Planning” 120m has already given you