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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 

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-

 term. impedance

Output impedance.........................approx. 20 k

 or 50 

*

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

Содержание SZI 30

Страница 1: ...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 m2 single ...

Страница 2: ...j Mains unit for up to four SI 30 SZI 30 NT 20 4 European version Cat No 003603 NT 20 4 120 USA version Cat No 003604 NT 20 4 UK UK version Cat No 003605 j RF connection cable 2 x 3 5 mm jack KR 20 7 7 5 m Cat No 003535 KR 20 015 0 1 m Cat No 003536 j AF extension cable 2 x Texas KK 20 1 1 m Cat No 003557 KK 20 7 7 5 m Cat No 003558 j KK 20 015 4 way octopus cable Texas Cat No 003599 j IZK 20 moun...

Страница 3: ...alue Too low a level results in more noise With the channel selector switch you can choose between channel 1 or 2 trans mission or stereo operation In mono operation the integrated radiator and all connected radiators can cover a greater area For mono transmission choose the frequency suitable for the receiver e g 2 3 MHz channel 1 for the RI 150 The RF output for connection of additional radiator...

Страница 4: ...e SZI 1029 for covering room niches and recesses j As island solutions e g for exhibits in a museum Such a system can econom ically be implemented using the SI 30 The individual areas within the museum have to be optically decoupled giving the visitor exactly the audio information which is associated with the exhibit he or she is facing without having to switch channels With the IZK 20 mounting cl...

Страница 5: ...clusters SZI 30 KKY 20 015 4 way octopus lead for connecting the NT 20 4 to SZI 30 SI 30 clusters NT 20 4 plug in mains unit for up to four SZI 30 SI 30 European UK and USA versions available NT 20 1 Plug in mains unit for one SZI 30 SI 30 European UK and USA versions available MZT 100 anti vibration table stand GZP 10 mounting plate IZM 20 cluster mounting kit in cludes screws and flange for com ...

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