SI 30/SZI 30
Features
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Compact radiator and modulator/radiator for the carrier
frequencies 2.3 MHz and 2.8 MHz
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Easy installation and precise alignment
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Delivery includes:
SI 30: 1 x SI 30 modulator/radiator, 1 x AF connection cable, 3.5 mm stereo jack
plug to Texas connector, length 2 m, 1 x 3.5 mm/1/4“ stereo jack adaptor
SZI 30: 1 x SZI 30 radiator
The NT 20-1 plug-in mains unit is not included in the delivery. Please order
it separately in the version you require (European, UK or USA versions available).
General Description
The SI 30 is a wideband modulator with an integral radiator. It can be switched
be tween operation on channel 1 (2.3 MHz), channel 2 (2.8 MHz) and stereo operation.
Due to its compact size and relatively low radiating power, the SI 30 modulator/
radiator and the SZI 30 radiator are an ideal choice for smaller or medium-sized
rooms, for covering recesses or for applications which require transmission of audio
information to well defined zones, e.g. in museums.
Technical Data SI 30
Modulation ....................................................... wideband FM
Nominal deviation .................................................. ± 50 kHz
Carrier frequencies ..................................2.3 MHz, 2.8 MHz
AF input................................................... 3-pin Texas socket
AF input voltage for
nominal deviation..............................................45 mV – 4 V
(automatic modulation control)
AF frequency response ...............................30 – 18,000 Hz
THD (1 kHz, nom. dev.) .................................................
≤
1 %
AF signal-to-noise ratio..................................
≥
60 dB(A)
rms
RF output.................................................. 3.5 mm mono jack
Output impedance............................................approx. 50
Ω
IR diodes ................................................................................11
Max. coverage area .................. approx. 80 m
2
, single-chn.
Radiating power ............................................. approx. 0.5 W
Operating voltage............................ 24 – 27 V DC via 2-pin
Texas socket
Current consumption ................................. approx. 180 mA
Dimensions ................................approx. 118 x 25 x 90 mm
Weight .............................................................. approx. 140 g
Technical Data SZI 30
Nominal deviation .................................................. ± 50 kHz
Carrier frequencies ............................................ max. 6 MHz
AF frequency response ................ depends on modulator
THD (1 kHz, nom. dev.) .................................................
≤
1 %
AF signal-to-noise ratio ................................
≥
60 dB(A)
rms
RF input .................................................... 3.5 mm mono jack
RF output......................................3.5 mm mono jack with a
50-
Ω
term. impedance
Output impedance.........................approx. 20 k
Ω
or 50
Ω
*
IR diodes ................................................................................11
Max. coverage area .................. approx. 80 m
2
, single-chn.
Radiating power ............................................. approx. 0.5 W
Operating voltage............................ 24 – 27 V DC via 2-pin
Texas socket
Current consumption ................................. approx. 150 mA
Dimensions ................................approx. 118 x 25 x 90 mm
Weight .............................................................. approx. 135 g
*see description on the following pages
IR Audio Transmission Technology |
Modulators/Radiators
