Latest call station Tenders | Government call station Tenders

corporations/Associations/Others

CTN :45601680

09 Jul, 2026 NA

Hyderabad-T - Telangana

Tender For supply of central controllers distributed intelligent node including personal computer and ups with battery , operator console master call station 90 keys , operator console master call station 16 keys , operator console master call station 8 keys , operator console master call station 4 keys , all- weather 2 way duplex speaker field call station , all-weather 4 way duplex field call station , 2 way all-weather duplex field call station with external speaker and flash , work station table for maintenance team , all-weather 2 way duplex field call station with external speaker and flash , commissioning of cyc for unit 5 , commissioning of cyc for unit 6 , central controllers distributed intelligent node including amplification system, computer, power supply, ups with battery , operator console master call station 32 keys , operator console master call station 7 keys , 6 watt wall mount speaker , 6 watt horn speaker , 10 watt horn speaker , 50 watt horn speaker , 100 watt horn speaker , universal branch box , universal limiting box , commissioning of cyh for unit 5 , commissioning of cyh for unit 6

CTN :45570395

08 Jul, 2026 NA

Betul - Madhya Pradesh

Tender For supply, installation and commissioning of lab equipments and smart class items etc - p, soxhlet extraction unit, tissue culture rack (caster racks), hot air oven stainless steel, flame photometer, heating mental with regulator cap 500 ml, digital colony counter, thin layer chromatography apparatus, micro pipette (fixed) 1- 5 ml, dissecting microscope, colorimeter, distillation apparatus double distillation capacity 5lt, laminar air flow horizontal, water and soil testing analysis kit, magnetic strirrer with hot plate, bionocularmicroscope, refrigeratorr, electronic balance (0.1 grm to 600 grm), desktop computer, lab table, f.e.t. characteristic apparatus, m.o.s.f.e.t characteristic apparatus, solar cell characteristic apparatus, single stage and double stage r.c. coupled amplifier/ feed back amplifier, transistorized push- pull amplifier, f.e.t. amplifier, hartley and colpitt s oscillator, zener regulated power supply, study of various a.c. bridges e.g., c.r.o. single trace 10 mhz, function generator (b)1hz to 10 mhz, series and parallel resonance circuit, spectrometer 6 / 7 , weight box, vernier callipers, digital multimeter, ldr characteristics apparatus., study of hall effect complete setup., function generator, impedance and power factor of lcr circuit, e/m by milikan s oil drop method, measurement of wave length of he-ne laser using ruler with laser complete setup, meter bridge (carey fostor bridge), desktop computer, lab table, lees apparatus, compound pendulum apparatus, bar pendulum apparatus, moment of inertia meter tot apparatus, maxwell needle apparatus, torsion pendulum apparatus, audio frequency oscillator, cathode ray tube (thompson method), jfet apparatus, photo diode apparatus, zener diode, transistor pnp and npn kit, compound microscope, dissecting microscope, binocular microscope, desktop computer, refrigeratorr, binocular

corporations/Associations/Others

CTN :45548460

17 Jun, 2026 NA

Reasi - Jammu And Kashmir

Tender For supply of ip service phone for connecting service call stations and emergency call stations,with built in amplifier and ip65 inside sos cabinet. (heinrich make - model no. hnex105-fk-sip) ]

CTN :45468789

17 Jun, 2026 NA

Almora - Uttarakhand

Tender For supply of unbranded glass fibre reinforced polyester tube , unbranded hit box , digital signal processing board , akew directional outdoor rf anteena , unbranded metal oxide surge arrestors , unbranded 4 channels audio digital signal processor , unbranded base mobile very high frequency marine transceiver , unbranded 100 megahertz non windows digital storage oscilloscope , unbranded rf signal generator 9khz to 1 ghz , unbranded lcd dielectric constant it for solids , unbranded electrostatic detection apparatus esda , rhode schwarz 20h 13 ghz real time

CTN :45351358

04 Jun, 2026 NA

Pudukkottai - Tamil Nadu

Tender For supply of lab equipments - purchase of lab equipments, ask modulation and demodulation kitspecifications: message signal1: 8-bit variable data,amplitude 5v. message signal 2: debounced data, amplitude low (0) and high (5 v). message signal 3: fixed data 25 khz, 12.5 khz, 6.25 khz, 3.12 khz, amplitude 5 v. carrier signal: sine wave, frequency 200 khz, amplitude 5 v. modulator type: switching modulator using analog switch / transistor switching ic. demodulator: envelope detector and lpf. comparator: lm311 based. supply voltage (board): +12 v, +5 v dc. supply current: 100 ma minimum. input voltage: 230 v ac, 50 hz. interface connectors: 2 mm banana socket., fiber optic communication trainer kitspecifications:power supply: 230 v ac 10%, 50 hz mains operation. built-in regulated power supply. optical transmitters: led transmitter: 660 nm. optical receivers: phototransistor / pin photodiode receiver. built-in signal conditioning and amplifier circuits. audio power amplifier with speaker/headphone output. comparator / pulse shaping circuit for digital signal recovery. test points for cro observation and signal monitoring. fiber media: multimode plastic optical fiber (pof). fiber patch cords with connectors. signal sources: built-in sine wave generator. built-in square wave / digital pulse generator. voice signal input through built-in microphone/audio source. trainer features: separate transmitter and receiver sections. on-board test points for signal observation. led indicators for signal monitoring. fault simulation facility. compact tabletop modular design. circuit diagram printed on pcb. bandwidth: analog bandwidth: up to 350 khz. digital bandwidth: up to 2.5 mhz. controls: variable signal amplitude control. variable frequency control. optical intensity adjustment. standard accessories: patch cords and connectors. power cord. audio connecting cable. user manual.

CTN :45316200

09 Jun, 2026 NA

Krishnagiri - Tamil Nadu

Tender For purchase of digital and analog communication lab equipment(tansche) - digital and analog communication lab equipment(tansche), digital ic trainer kit:1. equipped with 16 high-visibility leds for monitoring experimental outputs and logic status indication. 2. dedicated driver circuitry provided for reliable operation and protection of all 16 leds during experimentation. 3. all 16 driver input lines are terminated through banana connectors for flexible and easy external interfacing. 4. includes 16 spdt toggle switches for generating manual logic input conditions in digital electronics experiments. 5. additional 16 leds provided to display the real-time status of individual switch operations. 6. one terminal of each spdt switch is externally accessible through banana sockets for convenient circuit connections. 7. built-in variable clock generator enables pulse generation for sequential and timing-based 8. digital experiments. 9. frequency adjustment provided through potentiometer and rotary switch combination for precise clock selection. 10. clock output is terminated through banana connectors for quick integration with external circuits and trainer modules. 11. features dual 7-segment led display with 7447 decoder/driver ic for bcd to display 12. conversion experiments. 13. inputs of the 7447 drivers are terminated at banana connectors for direct digital logic interfacing. 14. includes solderless breadboard for rapid circuit prototyping and reusable experimental setup development., amplitude modulation trainer kit:1) on board carrier and modulating signal generator with amplitude and frequency adjustable 2) carrier and modulating signals are provided in the unit with frequency variable. 3) in-built regulated power supply 4) on board envelope detector 5) schematic diagram provided in the front panel modulating signal frequency : (300hz-3 khz) amplitude : (0-5) v carrier signal carrier signal frequency : 10 khz - 50 khz amplitude : (0-15) v type of modulator : 1. ring modulator 2. transistor based modulator method of modulation : 1. under modulation 2. critical modulation 3. over modulation, fm trainer kit 1) on board sine wave generator 2) provision to study modulation & demodulation in the same unit 3) test points to study different waveforms 4) in-built audio power amplifier 5) mic pre amplifier 6) built-in power supply 7) sine wave generator : frequency - 100hz to 1.2 khz with amplitude adjustable, (0-5v) 8) fm modulator : direct fm 9) carrier frequency : 20 khz (low), 367 khz(high) 10) fm demodulator : pll detector, quadrature detector, foster seelay discriminator / phase discriminator, ratio detector are provided. 11) audio power amplifier : gain 100 12) mic pre amplifier : gain 20, ask, fsk, psk trainer kita s k modulation & demodulation trainer on board data generator circuit. auto / manual mode (data generation) external patching provision provided between the modulator and demodulator. built-in power supply. modulator and demodulator are separately provided. easy interconnections are made by patch cords. mode : auto / manual input data rate : 800hz to 2 khz any external ttl compatible sequence with frequency up to 2.1 khz. carrier frequency : 20 khz power supply ratings: 230v + 10%, 50hz. f s k modulation & demodulation trainer three types of i/p sources - manual input , square input , rs232 input fsk modulator with, mark frequency: 1070 hz space frequency: 1270 pll based fsk demodulator output provided through bs2 connector and serial port. built-in power supply. p s k modulation & demodulation trainer on board programmable data generator on board carrier generator mimic diagram in the front panel type of modulator : balance modulator type of demodulator : balance demodulator binary inputs - 8-bit data length 50 khz, clock carrier inputs frequency : 200 khz amplitude : 2 v pp level converter : unipolar to bipolar supply ratings ac input (230v, 10%, 50hz) dc output (+12v,-12v, +5v, gnd, pam, pwm, ppm trai

CTN :45259927

23 May, 2026 NA

Barmer - Rajasthan

Tender For supply of supply & installation of field call station 6 dx 705/25

Central Government/Public Sector

CTN :45113432

18 May, 2026 NA

Visakhapatnam - Andhra Pradesh

Tender For supply of lbb 1946_00 call station , lbb1925_10 pre-amplifier,plena , 240w boost amplifi, lb series 1935, bosch , 120w booster amplifier,lbb 1930_20,bosch , voice alarm call station , wireless portable amplifier , pa column speakers , uhf wireless microphone set , audio mixer amplifier for pa system 100w

Central Government/Public Sector

CTN :45126771

23 May, 2026 NA

Raigad - Maharashtra

Tender For procurement of paging system components spares for calling stations for gt iv, etp minas and new sludge cacher projects

CTN :44987583

15 Jun, 2026 NA

Ernakulam - Kerala

Tender For procurement of 134 by type seaking spares - procurement of 134 by type seaking spares, relay thermal delay rm60, insulator, lead ,bonding, piece distance, stiff stick, knobe assy, knobe, fastener, packing o ring, clamp quick release, connector, marshalling wands, stator assembly, drum assembly, rectfer block, wire,equipment, sky flex, resistor 500 mohm, diode, nut, discharge assy static, bottle, termal delay relay, electrical component sub assy encapsulated, transformer audio frequency, rivet, stripping product(mould release), bearing, tube, capacitor 1mf 35v, spring,keeper, micro circuit linear, ball end, sliding, fuse, screw, grub, nut x, sbfs fuse, bearing, ball, tube x, coil, assy, fastener assy, capacitor, fixed electrolytic, 12 f +75% -10%, 75wdc, rivet csk hd semi tube, lead bonding, bolt no 10-32 unf, fuse holder, fuse 1a, ppmp knob, fan assy, gasket, fuse 4a, grip sub assy, bearing ball, electrical connector, cap assy, ic mcb 2653a, unit audio balance v/uhf, capacitor, fixed electrolytic, 2.7 f 10%, 75wvdc, capacitor, fixed electrolytic, 3.3 f 10%, 35 wvdc, indicator, lamp missile present port, seal metal, circuit integrated compander, gasket x, pin assy, pin assy pip, block, terminal tb633, clamp, assy, pin hinge, movement assy, poppet pressure reducer, armature motor generator, relay, bearing ball, shaft assy, bearing ballannular, shim, seal, rod assy, control, valve check, core & poppet assy, card assy compass, switch, resistor, link, tee, double check, packing, o ring hydraulic, cooling turbine, horizontal, vertical bar movement, rod end female, ring dublel, housing assy, cap, recepectacle, panel stn box, packing o ring, mechanical front end assembly, tag board, rivet xx, rivet xxx, stem valve, bearing, tubing heat shrink, knob x, switch, gear shaft, spur, switch assy, electrolytic, fuse x, fuse xx, fuse xxx, synchro,control transformer, wheel balance, capacitor 22mfd 35v, rivet xxxx, holder assy lamp, linkage assy, front panel assy., semi conductor device,diode, radio retainer, fastener, fastener x, fastener xx, case and gear assy, transformer, embout 202a132-25, sleev and shield assembly, facia panel, washer tab, retainer washer, packing o ring, ring seal, ring mating, sbfs fuse, fuse xxxx, capacitor

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