K R Narayanan National Institute Of Visual Science And Arts Tender

Lavelier Microphone wireless Transmitter Channel:A1 Frequency Range:470.100 to 537.575 MHz Frequency Selection:Steps: Selectable 25 or 100 kHz RF Power Output:50 mW Pilot Tone:25 to 32 kHz, 5 kHz deviation (Digital Hybrid mode) Frequency Stability:± 0.002% Deviation: ± 75 kHz max. (Digital Hybrid mode) Spurious Radiation:60 dB below carrier Equivalent Input Noise:-120 dBV (A-weighted) Input Level: Nominal 2 mV to 300 mV, before limiting,Greater than 1 V maximum, with limiting Input Impedance: 2 kOhms line, 300 ohms mic Input Limiter: DSP controlled, dual envelope "soft" limiter with greater than 30 dB range Gain Control Range: 44 dB, digital control Modulation Indicators: Dual bicolor LEDs indicate modulation of -20, -10, 0 and +10 dB referenced to full modulation:LCD bar graph Frequency Response: 90 Hz to 20 kHz (+/-1 dB) Low Frequency Roll-Off: -12 dB/octave, 70 Hz THD: 0.2% (typical) SNR at Receiver Output: SmartNR: Off 103.5 (no limiting) 108.0 (with limiting) Switch Controls Top panel slide switch; programmable as power, mute, talkback or no (off) function Side panel membrane switches with LCD interface for power on/off and all setup and configuration controls Audio Input Jack: 1x Switchcraft 5-pin locking (TA5F) Antenna: Galvanized steel, flexible wire Battery: 2x AA alkaline, lithium, NiMh rechargeable Battery Life: Alkaline: 4.5 hours Duracell Quantum: 7 hours Eneloop 2400 mAH NiMH: 8 hours Dimensions (L x W x H) 3.2 x 2.4 x .8" (81 x 61 x 20 mm)

Lavelier Microphone wireless Receiver Channel: A1 Operating Frequencies: 470.100 to 537.575 MHz Frequency Selection Steps: Selectable 25 or 100 kHz Receiver Type :Dual conversion, superheterodyne IF Frequency: 243.950 MHz and 250.000 kHz Frequency Stability: ± 0.001% Front End Bandwidth :20 MHz @ -3 dB Sensitivity :20 dB SINAD: 1.0 uV (-107 dBm), A weighted 60 dB Quieting: 2.2 uV (-100 dBm), A weighted Squelch Quieting: 100 dB typical Modulation Acceptance :+/-100 kHz max. varies with selected compatibility mode Image and Spurious Rejection :85 dB Third Order Intercept : 0 dBm Diversity Method :SmartDiversity phased antenna combining FM Detector: Digital pulse counting detector RF Spectrum Analyzer :Single and multiple block scanning modes with coarse and fine views of results Antenna Inputs: 2x 50 ohms SMA female connectors Audio Output : 1x TA3 male (mini XLR) balanced output Audio Output Level :Adjustable -50 to +5 dBu in 1 dB steps, unbalanced output level is 6 dB lower Front Panel Controls : Sealed panel with membrane switches LCD for setup menus and monitoring : Audio Test Tone 1 kHz, -50 dBu to +5 dBu output (balanced), 1% THD Transmitter Battery Type Selection : AA alkaline or lithium Timer available for use with alkaline, lithium and HiMH : Audio Polarity Selection Normal or inverted :Compatibility Modes :Digital Hybrid (North American and European) Lectrosonics 100, 200 and 300 series :Lectrosonics IFB Non-Lectrosonics modes 3, 6 an 7 (contact the factory for details) :SmartNR (Noise Reduction) Off, Normal, Full modes (available in Digital Hybrid mode only) : Frequency Response: 32 Hz to 20 kHz (+/- 1 dB) receiver only (see transmitter documentation for overall system response) Total Harmonic Distortion (THD) : 0.4 (0.2% typical in Digital Hybrid mode) Top Panel Features :1 x TA3M audio output jack 2 x SMA antenna jacks 1 x IR (infrared) port Battery / Runtime :4 hours, AA alkaline Operating Temperature ; -4 to 32 °F (-20 to +50°C) Dimensions (L x W x H) : 3.21 x 2.45 x 0.84" (82 x 62 x 21 mm) Weight : 6.54 oz (185.4 g) with two AA lithium batteries

Lavelier Microphone Capsule Directivity Omni directional  Transducer Self-polarized condenser  Frequency range 50Hz - 20kHz  Sensitivity (nominal at 1kHz) 17.8mV/Pa (-35dB,0dB=1V/Pa)  Equivalent noise level (A-weighted) 28dB-A  Max SPL (1% THD) 127dB SPL.  Output impedance at 1KHz 180 ohms  Powering +48±4V phantom  Current consumption less than 2.2mA  Weight 82g  Dimensions 16.1mm X 4.0mm (diameter), 3.0m(cable length)  Connector TA5F (Terminated)