Beyerdynamic SIR 320 - Manual (Page 9)

Copyright by beyerdynamic
9
Technical data
Complies with standards IEC 914 and IEC61603-3 (in normal operation)
Number of channels:
up to 32 (in dependence of type) regarding IEC 61603-2 and IEC 61603-7
Modulation:
FM
Transmission frequencies:
55 kHz - 1335 kHz in 40 kHz pattern for OR - Ch31
Intermediate frequency:
455 kHz
Operating mode:
Superhet receiver with PLL Synthesizer
Angle of reception:
120° horizontal / 100° vertical
Frequency response:
125 - 8.000 Hz
Distortion factor:
< 2 %
Signal / Noise ratio:
> 55 dB
Headphone socket:
3,5mm (DIN 455838)
Headphone impedance:
32 - 600 Ohm
Operating voltage:
3.6 ... 4.5 Volts
Power supply:
3 x rechargeable batteries NiMH 1.2V / 750 mA/h (AAA)
or 3 x disposable batteries 1,5V (AAA)
Operating time
up to 75 hours (rechargeable batteries)
up to 120 hours (disposable batteries)
Display:
seven-segment 2 digit LCD (Liquid Crystal Display) back lighted
(white text / black ground)
Test functions:
Battery voltage and IR-field strength via LCD
Temperature range:
(operating) +10°C ... +40°C
(storage) -20°C ... +50°C
Humidity:
< 80%, not condensed
Size:
150 x 50 x 25 mm
Housing:
ABS-plastic, grey
Weight:
approx. 150g (incl. batteries)