Latest voice communication Tenders | Government voice communication Tenders

Central Government / Public Sector

CTN :44068219

17 Jun, 2026 NA

Bongaigaon - Assam

Tender For corrigendum : supply of vhf sets with accessories for cisf d d -portable digital radio set, , vhf repeater with high gain antenna , vhf base station radio sets , 5by8 3 db gain omindirectional antenna , rf coaxial cable with connectors 30mtr , 12vdc power supply unit 10amps batt , six slot charger for dmr handheld radios , network switch 24 port , liasoning charges , itc and programming of vhf system

CTN :45465664

18 Jun, 2026 3.00 Lacs

Thanjavur - Tamil Nadu

Tender For supply of upgradation of laboratory equipment- tansche - upgradation of laboratory equipment, digital ic trainer kit: equipped with 16 high -visibility leds for monitoring experimental outputs and logic status indication. dedicated driver circuitry provided for reliable operation and protection of all 16 leds during experimentation. all 16 driver input lines are terminated through banana connectors for flexible and easy external interfacing. includes 16 spdt toggle switches for generating manual logic input conditions in digital electronics experiments. additional 16 leds provided to display the real-time status of individual switch operations. one terminal of each spdt switch is externally accessible through banana sockets for convenient circuit connections. built -in variable clock generator enables pulse generation for sequential and timing-based digital experiments. frequency adjustment provided through potentiometer and rotary switch combination for precise clock selection. clock output is terminated through banana connectors for quick integration with external circuits and trainer modules. features dual 7 -segment led display with 7447 decoder/driver ic for bcd to display conversion experiments. inputs of the 7447 drivers are terminated at banana connectors for direct digital logic inter-facing. includes solder less breadboard for rapid circuit prototyping and reusable experimental setup development., pam,pwm,ppm trainer kit:pam- ppm- pwm modulation and demodulation techniques, using natural and flat-top sampling. natural sample, sample and hold and flat-top outputs. selectable 2 different sampling pulse frequencies on board. on board sine wave generators. voice communication using dynamic microphone and speaker. -on board filters and amplifier. functional blocks indicated on board mimics. input- output and test points provided on board. built in dc power supply -fully documented operating manual -switch faults .pulse modulation techniques: (1) pulse amplitude modulation (2) pulse width modulation (3) pulse position modulation crystal frequency : 6.14mhz .sampling frequency : 16 khz, 32 khz .sine wave generator : 1 khz & 500 hz, amplitude (0-5) v. tolerance +5% . low pass filter : 4th order bw filter. cut off frequency 3.4 khz. voice communication : voice link using dynamic mic & speaker . ac amplifier : with adjustable gain control interconnections :uninsulated sockets. power:230v,50hz . accessories : manual , set of patch chords, microphone & speaker., electronics work bench:digital storage oscilloscope (dso) - 50mhz - 1no . 3mhz function generator (fg) 1no.dual output variable power supply (rps) (0-30v/2a) - 1no. fixed output power supply ( 12v, 500ma) ( 5v, 500ma) - 1no . digital multimeter 3.5 digit [hand held type] - 2nos 3.5 digit lcr meter [hand held type] - 1no. soldering & desoldering device - 1no., mosfet drain current and transfer characteristics trainer kit:circuit diagram in the front panel.biasing components provided test points are terminated at banana connector.input: 230v ac.housed in a closed cabinet.detailed experimental manual.2mm patch chords provided for inter connecting., frequency response of cs amplifier trainer kit:circuit diagram in the front panel.biasing components provided test points are terminated at banana connector.input: 230v ac.housed in a closed cabinet.detailed experimental manual. 2mm patch chords provided for inter connecting., frequency response of cascode amplifier trainer kit: circuit diagram in the front panel. biasing components provided test points are terminated at banana connector.input: 230v ac. housed in a closed cabinet. detailed experimental manual. 2mm patch chords provided for inter connecting., class a transformer coupled power amplifier trainer kit: circuit diagram in the front panel.biasing components provided test points are terminated at banana connector. input: 230v ac.housed in a closed cabinet.detailed experimental manual.2mm patch chords prov

Central Government/Public Sector

CTN :45433447

25 Jun, 2026 8.00 Lacs

Delhi - Delhi

Tender For supply of vector network analyser , vna power supply , rf cables , vna carry bag , vna operating manual

Central Government And Public Sector

CTN :45454742

11 Jun, 2026 NA

Lumding - Assam

Tender For supply, installation, testing and commissioning of dcus/gateways/ allocation of sim network service provider and the arrangement of sim cards to enable reliable medium for two-way communication between smart meter & amp:, hes (head end system) over rf mesh network/cellular network. 1. the dcu/gateway shall be compatible with the smart meters mentioned above. rf mesh network should use 865-867 mhz frequency band. 2. the data acquisition (push/pull) frequency shall be configurable 15 min, 30 min or 60 minutes. it shall push events such as tamper, power off etc. to hes immediately on occurrence/receipt from meters. 3. it shall have provision for the cellular, wifi and ethernet communication for the backhaul tohes. 4. sufficient number of gateways shall be installed in such a way that all the meters are covered in the network efficiently. 5. it shall be capable to handle data of minimum 500 nos. of any type of smart meter (1ph/3ph). it shall be able to communicate with the nearest meters at a distance of at least 300 m, depending on topographical features. 6. communication of the nearest meters with other meters shall be established through appropriate mesh formation. rf mesh shall support self-forming and self-healing features. 7. rfmesh shall support at least 15 no. of hops. 8. the equipment shall be weather-proof and dust-proof (minimum rating: ip54 for indoor and ip65 for outdoor installation). it shall have rechargeable battery with backup for 1(one) hour for normal meter reading, to push tamper event, carry out on demand reading, etc. 9. it shall have passed the following emc tests from reputed lab: conducted emission, electrostatic discharge (esd), radiated immunity, electrical fast transient (eft) - burst, surge, rf conducted disturbances. 10. rf mesh network shall be established to meet the slas as mentioned in tender document. 11. replacement warranty period shall be 66 (sixty-six) months from the date of supply or 60 (sixty) months from the date of commissioning, whichever is earlier. [ warranty period: 30 months after the date of delivery ] ]

corporations/Associations/Others

CTN :45268362

23 Jun, 2026 NA

Nungambakkam - Tamil Nadu

Tender For corrigendum : maintenance contract of computers printers ethernet switches and other peripherals supplied under lt billing project best phase i installed in various sections sub divisions division stores and mrt offices and maintenance of rf network

State Government

CTN :45134201

08 Jun, 2026 NA

Bhopal - Madhya Pradesh

Tender For corrigendum : selection of bidder for design supply installation testing commissioning and maintenance of rf based network infrastructure in mauganj maihar pandhurna

CTN :45322365

15 Jun, 2026 4.99 Crore

Indore - Madhya Pradesh

Tender For to award a rate contract for supply of isi marked, dlms compliant, lt static single phase and three phase smart meters along with rf network interface card (nic) and box

Central Government/Public Sector

CTN :44931994

28 May, 2026 NA

Ratlam - Madhya Pradesh

Tender For supply, installation, testing and commissioning of telecom material (cctv surveillance system) in connection with ratlam division - upgradation and replacement of telecom passenger amenities and various facilities at various stations (simhastha 2028). - upgradation and replacement of telecom passenger amenities at variousstations (simhastha 2028). (project id:-15.05.53.25.3.54.016) , supply of full hd p/t/z (pan/tilt/zoom) ip colour camera as per rdso spec. no: rdso/spn/tc/ 65/2021 rev 6.0 or latest with amendment-1 or latest. this also included all required accessories as per instructions of the site in charge. , supply of full hd ip colour camera as per rdsospec. no: rdso/spn/tc/65/2021 rev 6.0 orlatest with amendment-1 or latest. this alsoincluded all required accessories as perinstructions of the site in charge , supply of wireless router/ access point for wi-ficonnectivity as per technical specification , supply of ont with dual- band wireless ac/n ggpon hgu with 4-port gbe lan and rf overlay as per technical specification , supply of 64 channel network video recorder and 64tb storage after raid 5/6 configuration with hdd (8 nos of hdd, capacity: 8 tb each should be supply along with nvr), 2 no's ethernet port complete with all other accessories as per rdso spec. no. rdso/spn/tc/65/2021 ver6.0 or latest, clause no.10.2. the software licenses should be as per rdso spec no.: rdso/spn/tc/65/2021 rev 6.0 or latest clause 20.0. , supply of iron cage for protection of cameras , supply of stp cat-6 cable (shielded twistedpair) stp compliant with latest tia/eia568c.2 , supply of network attached storage (nas) device, on site oem warranty 3 years. ,

Central Government And Public Sector

CTN :45203156

25 May, 2026 7.12 Crore

Nagpur - Maharashtra

Tender For selection of si for design, supply, installation, testing and commissioning of mpls vpn managed network services with rf as last mile based for wcl nagpur with comprehensive annual maintenance contract for a period upto 22.03.2028 on opex basis.

CTN :45291331

11 Jun, 2026 NA

Hyderabad - Telangana

Tender For supply of vector signal generator , vector signal analyser , digital storage oscilloscope , digital multimeter , vector network analyzer , radio test set with rf and audio analyzer , ate accessories , sut integration and test gui development

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