Infrared Conference Equipment - Meeting, Congress - IR Radiator -
$344.95
General Description
The SI 20 is a small- to medium-area transmitter, which can be connected to audio components via an 1/8" or 1/4" plug. It has the ability to switch transmitting frequencies from 95 kHz to 250 kHz or both for two channel/stereo operation. Capable of covering approximately 750 sq. feet, the SI 20 is sufficient for small screening rooms, or as a monitor transmitter for the projectionist at movie theaters. Coverage can be increased with the addition of DC powered SZI 30 slave emitters. A system with one SI 20 transmitter and up to three SZI 30 slave emitter panels is ideal for small- to medium-sized theaters where a SZI 1029-T or SI 1013/SZI 1029-T system would be too large.
Features
- Easy installation; precise alignment
- Radiator with integral modulator
- 2-channel wideband, switchable modulator
- Charging compartments for two BA90 batteries
Delivery Includes
Infrared Conference Equipment - Meeting, Congress - IR Radiator -
$344.95
Technical Data
| Carrier frequency |
6 MHz |
| Current consumption |
150 mA |
| Dimensions |
4.6 x 1 x 3.5 in. (118 x 25 x 90 mm) |
| Effective radiated power |
0.5 W |
| IR diodes |
11 |
| Max. coverage area |
861 sq. ft. (80 m²) |
| Nominal deviation |
± 50 kHz |
| Operating voltage (mains) |
24 - 27 V DC |
| Output impedance |
approx. 20 kΩ o. 50 Ω |
| Weight |
4.8 oz. (135 g) |
Infrared Conference Equipment - Meeting, Congress - IR Radiator -
$344.95
Recommended Accessories
| Part/Accessory |
Article No. |
| IZK 20 |
003560 |
Mounting clamp for one SI30 or SZI30 (0.5 oz)
|
| IZM 20 |
003561 |
Mounting hardware for clustering up to four IZK20 mounting clamps (0.3 oz)
|
| NT 20-4-120 |
003604 |
AC power adapter for up to (4) SI30 or SZI30 (15.5 oz)
|
| WM-1 |
USWM1 |
Adjustable ratcheting mount for wall/ceiling mounting
|
| WM-1/216 |
USWM1/216 |
Wall/ceiling mount with 5/8 in thread and 3/8 in adapter, for use when mounting one SI30 or SZI30
|
Infrared Conference Equipment - Meeting, Congress - IR Radiator -
$344.95
Variants
$344.95
Glossary
| IR diodes |
| High-quality gallium arsenide diodes used in IR radiators to transmit modulated infra-red light. |
| Nominal deviation |
| Also known as reference deviation. The nominal deviation has been fixed at 40kHz to be able to give comparable technical data. |
| Operating voltage (mains) |
| Gives the (mains) voltage range for which a unit has been designed. |
| Output impedance |
| Gives the internal impedance of an a.c. source. If the input of a subsequent load has the same input impedance, we speak of a matched impedance. The maximum power is delivered to the load. |
