Telecommunications Consultants India Limited Tender

Supply, Installation, testing and commissioning of The microphone shall be a freestanding, tabletop Desktop microphone with a high degree of output signal quality despite possibly nearfield presence of RF (radio frequency) devices such as cell phones, The microphone shall have three selectable polar patterns: Cardioid, supercardioid, and hypercardioid. Rejection of sounds from the sides is crucial considering the court envoirment and the various polar patterns shall contribute to achieve the same. Cardioid, supercardioid, and hypercardioid patterns, in particular, shall be effective in minimizing side and rear noise, Bidder may also offer three Detachable Microphone Capsules if a single microphone unit cannot accommodate multiple polar patterns, This modular approach shall allow user to switch between capsules, each configured with a different polar pattern for added versatility, The Desktop base shall have switch with LED which can be programmed as either push on/off or push-to-mute, Microphone shall include a 460 mm to 480 mm gooseneck, The microphone shall have a switchable highpass filter to roll off low frequencies, Frequency Response (-3 dB) 50 Hz - 20,000 Hz, Element Dual condenser (back-electret), Impedance,Low-Z balanced 100 to 200Ω, Case Material Steel, Power Requirement 12 - 52 VDC, etc complete as per technical specification.

Supply, Installation, testing and commissioning of Multi-Channel Wireless Microphone system set shall consist of a Receiver for receiving minimum 8 channels, shall have option to work with compatible Wireless Gooseneck , Handheld, lapel and Boundary Layer range of Microphones Transmitter keeping in view any future requirement / upgradation in the court room without any change in the Receiver unit, It shall have 1 Nos. of 8 / 2 Nos. of 4 channels of receiver modules, It shall have 1 x 8 / 2 x 4 Nos. analog output channels with Euroblock / XLR type connector, The Receiver shall have detachable antennas with a option to extend the antenna from receiver using remote active antennas or install extended antenna system to comply the required coverage of minimum 250 feet, The receiver shall have an option to mount the antennas on the front rack ears, The receiver shall have built in / external antenna distribution with a daisy chain output for connecting multiple receivers as required as per site included in the scope, The receiver shall have a headphone port with volume control for monitoring audio, It shall have built in / external 8 nos. GPIO port and Rs-232 port for third party for central monitoring, control and integration, System should have front panel OLED / LCD display for Battery status, transmitter status, RF and Encryption details etc., The system shall have minimum 256 bit AES encryption, The receiver shall have a Ethernet connectivity for remote control and firmware updates, The Receiver should have both power options AC and DC which should be redundant so as if one source is removed the other source takes over, Frequency range shall be 20 Hz to 20 Khz, The receiver shall have an built in email alert/text based system to notify a low battery state of a transmitter unit, shall have an built in email alert/text based system to notify a low battery state of a transmitter unit Built in Dante for Audio Networking, Dante Audio channels: Eight or more digital outputs, Dante Ports: Primary & secondary, RJ45 ports, RF Range : 500 Mhz to 900 Mhz, S/N Ratio : 108 dB or better, THD 0.04% or better, etc complete as per technical specification.

Supply, Installation, testing and commissioning of Wireless Gooseneck Microphone shall have a Cardioid microphone polar pattern with minimum 18” Gooseneck Length including capsule, It shall use NiMH / Li-ion / Alkaline rechargeable batteries. The batteries shall be field-replaceable, It shall have 4 hrs charging time and minimum 15 hrs continuous usage, The transmitter should be supplied with built in or external 2 x 4 / 1 x 8 slot battery charger, transmitter shall have a programmable mute button (toggle/PTT/PTM), programmable slide switch (on/off/mute) and LED indicator, shall have an option to power through USB port as an additional way of charging in emergency, Digital Wireless System, shall have a minimum RF power of 50mW or better, Frequency Response : 60 Hz to 15 Khz, Signal to Noise ratio : 74 dB or better, RF Range : 500 Mhz to 900 Mhz, etc complete as per technical specification.