Williams Sound SoundPlus Infrared System WIRTX900 Specifications page 5

SoundPlus Infrared System
®
WIR RX22-4 Receiver
Earphone
Jack
OFF
"On"
Indicator LED
RX22-4 Top
RX22-4 Front
Fig. 9: WIR RX22-4 Receiver
Channel
Selector Knob
On/Off
Volume Switch
Receiver Style: Body-Pack, dual-lens detector, lanyard
Size: 4.5" L x 2.85" W x 1.2" H (114.3 mm x 72.4 mm x 30.4 mm)
Weight: 4.6 oz (130 g) with batteries
Color and Material: Black
Lanyard: 3 ft (.91 m), allows receiver to be worn around the neck
Operating Temperature: -10° C to +50° C
Battery Type: 2 x AA, alkaline (BAT 001) or NiMH (BAT 026)
Battery Life: Alkaline: 60 hours, NiMH: 30 hours/charge
Battery Drain: 25 mA, nominal
Charging Contacts: For use only with CHG 3512
Carrier Frequency: Channel 1: 2.3 MHz, Channel 2: 2.8 MHz
Channel 3: 3.3 MHz, Channel 4: 3.8 MHz
De-Emphasis: 50 uS
FM Deviation: ±50 kHz
Signal-to-Noise Ratio:
60dB min.
Squelch: Receiver squelches (mutes) at 40 dB S/N ratio
Frequency Response: 25 Hz to 16 KHz, +1 dB, -3 dB, electrical response
Total Harmonic Distortion: Less than 1%, electrical response
Controls: ON/OFF/VOLUME: combination thumbwheel knob
Channel Selector: four-position rotary switch
Indicators: Red LED "ON" indicator, flashes to indicate Low battery
Audio Output Jacks: 3.5 mm stereo mini phone jack
Accepts 3.5 mm mono or stereo phone plug
Audio Output Power: 15 mW max at 32 Ω
Acoustic Output: 110 dB SSPL90 w/ EAR 013
Sensitivity: Better than 1 nW/cm2 for 40 dB signal-to-noise ratio
Approvals: CE, FCC, RoHS, WEEE
Warranty: 5 years on receiver, 90 days on accessories
Compatible Headphones/ Mono or stereo, 8-32 ohms, 3.5 mm mini phone plug, HED 021, HED 026,
Earphones: EAR 013, EAR 014, EAR 022, NKL 001
Compatible Headphones/ Mono or stereo, 8-32 Ω, 3.5 mm mini phone plug, HED 021, EAR 013, EAR
Earphones: 014, EAR 022