Latest wireless communication system Tenders | Government wireless communication system Tenders

CTN :45707450

07 Jul, 2026 12.83 Lacs

Bardhaman - West Bengal

Tender For supply and installation of dgms approved loud hauling cage/dolly wireless communication system for 02 nos. of pits at shyamsundarpur colliery under bankola area.(retender)

State Government

CTN :45366622

02 Jul, 2026 NA

Panchkula - Haryana

Tender For corrigendum : procurement of data sim cards

Central Government/Public Sector

CTN :45113615

26 Jun, 2026 NA

Goa - Goa

Tender For corrigendum : supply of jacket divers dress neoprene 3mm thickness medium , jacket divers dress neoprene 3mm thickness large , jacket divers dress neoprene 3mm thickness small , long john diver dress neoprene 3mm thickness medium , long john diver dress neoprene 3mm thickness large , long john diver dress neoprene 3mm thickness small , boots divers dress neoprene 3mm thickness small , boots divers dress neoprene 3mm thickness medium , boots divers dress neoprene 3mm thickness large , hood for divers neoprene 3mm thickness each set having one each in three sixes s,m and l , gloves for divers neoprene 3mm thickness each set having one each in three sixes s,m and l , mask swim silicon , tube snorkel , swim fins rubber set of pair , swim fins improved graphite with back strap set of pair , swimmer knife with sheath light and rustproof , multipurpose divers knife tool with sheath , underwater digital video cameras with casing , divers life belt , weight belt diver with four or six pouches , buddy line with inglefield clip , lead weight set of 1 and 2 kg , diving ladder adjustable , diving marker float spherical buoyancy 10kgs , iron sinker with hook 25kg , divers lifeline 8mm sisal or manila or manmade fiber length 220m continuous in each set , underwater flood light 1000 watts complete hand held , uw light high power with cable 50 mtrs and surface supply accessories , lamp search divers complete head mounted with rechargeable battery charger and bulb 50 watts , divers uw communication system with battery compatible with diving set , divers uw wireless communication system , portable hp diesel driven diving air compressor 5 to 6 cfm with 5 years spares working pressure up to 300 bars , lp washing kit with 60 feet soft hose and adjustable pressure nozzles , underwater digital still camera with casing , onboard spares , installation and commissioning spares

CTN :45535219

20 Jun, 2026 NA

Krishnagiri - Tamil Nadu

Tender For purchase of ece department lab electronics equipments - equipments for ece, dual output regulated dc variable power supplyinput voltage : 230v/50hz acoutput voltage :(0-30)v dcoutput current :(0-2)a dcprotection circuit : over voltage, over current, and short-circuit protectionhigh efficiency : greater than 85%low ripple and noise : less than 50 mvdigital display, function (signal) generatorspecs:frequency range : 0.1hz to 5mhzdisplay :4 to 6 digit led displayoutput waveforms : sine, triangle, square, pulse, rampamplitude :0-20 vpprise time :100 nsdistortion : 1% within specified frequency rangepower supply : 230v ac 10% , 50-60 hzoutput amplifier protection : short circuit and 15voverload protectiondc offset: 0 to 10 v adjustableattenuation: 0 to -60 db, decade resistance box range : 1 to 1m rotary switch selection with 6 dialssteps : 1 , 10 , 100 , 1k , 10 k , 1m accuracy : 1%, decade capacitance box range : 100 pf to 100 frotary switch selection with 6 dialsmaximum voltage : 350vaccuracy : 1%, decade inductance box range : 10 h to 10 hrotary switch selection with 6 dialslow-loss inductorsaccuracy : 1%, sim reader trainer kitpower supply :operates on 230v ac 10%, 50hz mains supplybuilt-in regulated smps power supplyoperating dc supply : 5v/12v with overload and short-circuit protectionsim card interface :supports gsm sim cards compatible with 2g / 3g / 4g / 5g networkssim card read/write interfacesupports sim card initialization, authentication and communication functionscompatible with standard 6-pin / 8-pin sim card socketscommunication interface :usb 2.0 interface for pc communicationrs-232 serial communication interfaceuart communication facility for embedded system interfacingsim operating parameters :selectable sim clock frequencies3.579 mhz7.159 mhz14.318 mhzsim supply voltage selection facilitysim reset and activation controlsupported protocols and standards :gsm etsi 07.07 and etsi 07.05 at command supportiso/iec 7816 smart card communication supportsim communication command monitoring facilityhardware features :on-board sim card socketled indication for :power statussim detectionreset activityuser manualutility software cd / downloadable software packagedata transmission/receptionbuilt-in keypad for standalone operation.lcd display module (128 64) for menu and status display.on-board microcontroller-based control section.software support:at command execution and monitoring software.sim manager utility software.data logging and communication terminal utility.pc-based gui software for sim data communication experiments.trainer features:fault simulation facility for troubleshooting experiments.simulation of faults such as:sim not detectedclock failurevcc failurereset failuremultiple on-board test points for signal observation.test points for:sim rstsim_clksim iovccuart tx/rxsuitable for cro/dso signal monitoring.glass epoxy pcb with educational block diagram layout.compact tabletop enclosed cabinet design.construction:front panel with printed block diagram.banana test points and patching facility.standard accessories:gsm sim trainer unit.usb communication cable.rs-232 communication cable.power cord., microwave test bench with reflex klystron oscillatormicrowave source :relex klystron tube with klystron mountoperating frequency in x-band (8.2ghz to 12.4ghz)electronic tuning through repeller voltage controlsuitable for cw microwave generationklystron powersupply:regulated klystron power supply unitbuilt-in modulation facilityoverload and short circuit protectionoperates on 230v ac 10%, 50hz mains supplywaveguide components:isolator variable attenuatorfrequency meterslotted line section with tunable probecrystal detector mountmatched loadmovable short / terminationwaveguide stands and accessoriesmeasurement unit:solid state vswr meter with high sensitivityswr measurement facilitysuitable for detector output monitoringtechnical specification :frequency range : 8.2 ghz to 12.4 ghzwaveguide types : wr-90detector type : crys

CTN :45516001

20 Jun, 2026 NA

Krishnagiri - Tamil Nadu

Tender For purchase of ece lab electronics equipments - equipments for ece, dual output regulated dc variable power supplyinput voltage : 230v/50hz acoutput voltage :(0-30)v dcoutput current :(0-2)a dcprotection circuit : over voltage, over current, and short-circuit protectionhigh efficiency : greater than 85%low ripple and noise : less than 50 mvdigital display, function (signal) generatorspecs:frequency range : 0.1hz to 5mhzdisplay :4 to 6 digit led displayoutput waveforms : sine, triangle, square, pulse, rampamplitude :0-20 vpprise time :100 nsdistortion : 1% within specified frequency rangepower supply : 230v ac 10% , 50-60 hzoutput amplifier protection : short circuit and 15voverload protectiondc offset: 0 to 10 v adjustableattenuation: 0 to -60 db, decade resistance box range : 1 to 1m rotary switch selection with 6 dialssteps : 1 , 10 , 100 , 1k , 10 k , 1m accuracy : 1%, decade capacitance box range : 100 pf to 100 frotary switch selection with 6 dialsmaximum voltage : 350vaccuracy : 1%, decade inductance box range : 10 h to 10 hrotary switch selection with 6 dialslow-loss inductorsaccuracy : 1%, sim reader trainer kitpower supply :operates on 230v ac 10%, 50hz mains supplybuilt-in regulated smps power supplyoperating dc supply : 5v/12v with overload and short-circuit protectionsim card interface :supports gsm sim cards compatible with 2g / 3g / 4g / 5g networkssim card read/write interfacesupports sim card initialization, authentication and communication functionscompatible with standard 6-pin / 8-pin sim card socketscommunication interface :usb 2.0 interface for pc communicationrs-232 serial communication interfaceuart communication facility for embedded system interfacingsim operating parameters :selectable sim clock frequencies3.579 mhz7.159 mhz14.318 mhzsim supply voltage selection facilitysim reset and activation controlsupported protocols and standards :gsm etsi 07.07 and etsi 07.05 at command supportiso/iec 7816 smart card communication supportsim communication command monitoring facilityhardware features :on-board sim card socketled indication for :power statussim detectionreset activityuser manualutility software cd / downloadable software packagedata transmission/receptionbuilt-in keypad for standalone operation.lcd display module (128 64) for menu and status display.on-board microcontroller-based control section.software support:at command execution and monitoring software.sim manager utility software.data logging and communication terminal utility.pc-based gui software for sim data communication experiments.trainer features:fault simulation facility for troubleshooting experiments.simulation of faults such as:sim not detectedclock failurevcc failurereset failuremultiple on-board test points for signal observation.test points for:sim rstsim_clksim iovccuart tx/rxsuitable for cro/dso signal monitoring.glass epoxy pcb with educational block diagram layout.compact tabletop enclosed cabinet design.construction:front panel with printed block diagram.banana test points and patching facility.standard accessories:gsm sim trainer unit.usb communication cable.rs-232 communication cable.power cord., microwave test bench with reflex klystron oscillatormicrowave source :relex klystron tube with klystron mountoperating frequency in x-band (8.2ghz to 12.4ghz)electronic tuning through repeller voltage controlsuitable for cw microwave generationklystron powersupply:regulated klystron power supply unitbuilt-in modulation facilityoverload and short circuit protectionoperates on 230v ac 10%, 50hz mains supplywaveguide components:isolator variable attenuatorfrequency meterslotted line section with tunable probecrystal detector mountmatched loadmovable short / terminationwaveguide stands and accessoriesmeasurement unit:solid state vswr meter with high sensitivityswr measurement facilitysuitable for detector output monitoringtechnical specification :frequency range : 8.2 ghz to 12.4 ghzwaveguide types : wr-90detector type : crystal detecto

CTN :45368819

13 Jun, 2026 12.83 Lacs

Bardhaman - West Bengal

Tender For corrigendum : supply and installation of dgms approved loud hauling cage or dolly wireless communication system for 02 nos. of pits at shyamsundarpur colliery under bankola area.

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 ] ]

Central Government/Public Sector

CTN :44923275

17 Jun, 2026 NA

Sundergarh - Odisha

Tender For corrigendum : supply installation and commissioning of wireless communication system for paddle feeders at ntpc darlipalli

CTN :45386617

06 Jun, 2026 NA

Vellore - Tamil Nadu

Tender For ece lab items dept use - eliminator transformer (step-down) kitinput - 220v - 240v ac, 50 hz, output-2v to 12v dc, 0-2 a ripple: 5mv, strain gauge trainer kitmetal foil strain gauge mounted on beam/cantilever strain measurement under applied load wheatstone bridge arrangementsignal conditioning and amplification circuitinstrumentation amplifiers, 3 digit display of strain / output voltage zero and gain adjustment controlsprovision for applying calibrated loads regulated power supply, 230 v ac, 50 hz table-top trainer with labeled paneltest points to measure the signalsbuilt in power supplies and wooden closed cabinet supplied with patch cords and experiment manual, temperature measurement kitsensors: rtd (pt-100), thermocouple (fe-k/j-type), and/or thermistor (ntc).display: 3 digit led/lcd digital display (typically 200mv fsd). temperature source: portable water kettle or heater block.signal conditioning: on-board circuitry for amplification, linearization, and cold junction compensation.test points: multiple 2mm/4mm banana sockets for monitoring input/output signals.power supply: 230v ac, 50hz, single-phase.accessories: includes a glass thermometer, ntc thermistor probe 10k, k-type thermocouple probe, patch cords, and instruction manual., sim reader trainer kitsim compatibility supports 2g 3g 4g lte sim cards,sim reader mode: reading writing gsm sim card data, imsi, ki codes, phonebook interface usb 2.0 or rs 232 serial port for pc communication.clock frequencies: selectable frequencies 3.579 mhz, 7.159 mhz, 14.318 mhz for sim card operation.power supply: onboard smps 12v 2a or 5v dc with overload protection. hardware components:6-pin or 8 pin sim card socket.led indicators for power, sim reset, and data activity.optional lcd 128x64 and keypad 20 keys for standalone operation. software tools support for at commands gsm etsi 07.0707.05, sim manager utilities, and data logger functionality. common trainer kit featuresfault simulation ability to create faults e.g., sim not detected, vcc failure for troubleshooting.test points: multiple test points e.g., 55 nos for observing signals sim rst, clk, i o via oscilloscope.construction tested glass epoxy pcb, often housed in a study educational case., dual output regulated dc variable power supplydual output regulated power supply- input voltage: 230v/50hzac- output voltage: (0 30v)dc- output current: (0 2a)dc- protection circuit: over voltage and over current protection, short-circuit protection- high efficiency: greater than 85%- low ripple and noise: less than 50 mv, lvdt sensor trainer kitac mains power supply : 230v 10%, 50hzfixed regulated dc power supply : +5v, 12v 500matransducer : lvdtlvdt displacement : 20mm (40mm total)displacement scale : linear 20mmdisplacement display (mm) : red color 3 digit led displayexcitation frequency : 4khzexcitation voltage : ac variable 5v, dc digital voltmeter - 3 digit led/lcd display, measurement range: 0 20 v dc, accuracy: class 0.5( 0.5 % full-scale), dc ammeter digital - 3 digit led/lcd display, measurement range: 0 5 a dc, accuracy: class 0.5 ( 0.5 % full-scale)

CTN :45365495

12 Jun, 2026 NA

Sivaganga - Tamil Nadu

Tender For purchase of equipments ( s.no 1 to s.no 5 ) for ece department - purchase of equipments, dso (digital storage oscilloscope) bandwidth: 50 100 mhz. sampling rate: 1 gs/s. channels: 2 (minimum). power supply: 100 240 v ac, 50 60 hz. automatic measurements: vpp, vavg, vrms, frequency, period, vmax, vmin, rise time, fall time, +width, width, +duty, duty, etc. horizontal scale: 5 ns/div 50 s/div or equivalent. vertical resolution: 8 bits (2 channelssimultaneously). vertical sensitivity: 1 mv/div 10 v/div (at input). waveform math: +, , , , invert, fft, etc. waveform storage: 16 waveforms or equivalent. communication interface: usb host and usb interface. display: 7-inch color display or equivalent. input impedance: 1 m 2% || 20 pf. accessories: 2 passive probes (1x/10x), 8051 micro controller kit operating voltage: +5 v dc. flash memory: 4 kb (at89c51) / 8 kb (at89s52). ram: 128 bytes internal ram. 16 2 alphanumeric lcd display. push buttons / tactile switches. dip switches for digital input. inbuilt adc interface: ldr, potentiometer. inbuilt dac interface. inbuilt stepper motor driver with stepper motor. inbuilt dc motor driver with dc motor. 1 4 led array, 1 4 keypad, 1 relay. 1 buzzer, 16 2 lcd display, 1 pwm driver. 1 hardware interrupt key, inbuilt rtc. inbuilt eeprom and uart module. 4 7-segment display. supports both assembly and c language programming. pc interfaceable., embedded trainer kit (using lpc 2148) cpu - lpc2148, core - 16/32 bit arm7tdmi-s speed - max 60 mhz, flash - 512kb, ram (on-chip) 40kb, 46 general purpose i/opins, usb2.0 one 10bit a/d converter with 14 analog inputs, one 10bit d/a converter, six pwm & watchdog two uarts (16c550), two i2c (400kb/s), two spi eight bit digital output, eight bit digital input,16x2 characters lcd and 4x4 matrixkeypad one potentiometer for giving analog input, relay& buzzer interface i2c devices: rtc, eeprom and seven segment display, on board stepper motordriver lm35 temperature sensor, one rs 232 lines are terminated at 9 pin d type connector and usb interface board has inbuilt power supply and mounted in sturdy cabinet accessories usb cable with utility software to download programs from pc to target board power cord, user manual, strain guage trainer kit ac mains power supply: 230 v 10%, 50 hz metal foil strain gauge mounted on beam/cantilever. strain measurement under applied load. wheatstone bridge arrangement. signal conditioning and amplification circuit. instrumentation amplifiers with 3 digit display for strain / output voltage. zero and gain adjustment controls. provision for applying calibrated loads. table-top trainer with labelled panel. test points for signal measurement. built-in dc power supplies and wooden closed cabinet. supplied with patch cords and user manual., sim reader trainer kitpower supply: operates on 230 v ac 10%, 50 hz mains supply. built-in regulated smps power supply. operating dc supply: 5 v / 12 v with overload and short-circuit protection. sim card interface: supports gsm sim cards compatible with 2g /3g / 4g / 5g networks. sim card read/write interface. supports sim card initialization, authentication,and communication functions. compatible with standard 6-pin / 8-pin sim cardsockets.communication interface: usb 2.0 interface for pc communication. rs-232 serial communication interface. uart communication facility for embeddedsystem interfacing. sim operating parameters: selectable sim clock frequencies: 3.579 mhz 7.159 mhz 14.318 mhz sim supply voltage selection facility. sim reset and activation control.supported protocols and standards: gsm etsi 07.07 and etsi 07.05 at commandsupport. iso/iec 7816 smart card communication support. sim communication command monitoring facility.hardware features: on-board sim card socket. led indication for: power status sim detection reset activity data transmission/reception built-in keypad for standalone operation. lcd display module (128 64) for menu andstatus display. on-board microcontroller-bas

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