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Low Frequency

Low Frequency 30 to 300 kHz.

See Also: VLF, ELF


Showing results: 676 - 690 of 718 items found.

  • Fibre Network Providers for High Speed and Low Latency Network Infrastructure

    PBE Group

    PBE Group is a fibre network provider that delivers a vast array of integrated tunnelling and mining projects globally and offers custom fiber-based solutions that are reliable, robust and easy to use.Rebroadcasting systems (LTE, FM, TETRA, P25, etc), video monitoring and real time machine control systems can demand high bandwidth and low latency for operation. PBE offers a wide range of fiber-based solutions that can satisfy these requirements. PBE provides Ethernet over Fiber Network and RF over Fiber Network systems in mines and tunnels.Fiber network has a number of advantages:- Covers greater distances with less loss- Support high bandwidth- Immunity to EMI and RF Interference- Support different topologies (Star, Ring, Tree, etc.)- Flexible design and deployment- Flat frequency response and wide frequency ranges- Easy to implement redundant network

  • Waveform Function Generators

    T3AFG Series - Teledyne LeCroy

    Teledyne Test Tools new T3AFG series of function / arbitrary waveform generators use advanced Digital Frequency Synthesis (DDS) technology to produce high quality standard function and arbitrary waveform signals. They also provide a wide range of analog and digital modulation functions. The T3AFG series of Arbitrary Waveform Generators includes models with up to 120 MHz bandwidth, 1.2 GSa/s sample rate, 16-bit vertical resolution and 8 Mpts of data. Common analog and digital modulations, sweep and burst are provided to support complex signal generation. The T3AFG series also provides true dual channels with internal waveform combination, flexible phase/channel control and copy/coupling/tracking between channels. These features enable Teledyne Test Tools Arbitrary Waveform Generators to provide a variety of high fidelity and low jitter signals, meeting the growing requirements of complex and intensive applications.

  • EOC Master

    EOCM-7102 - Hangzhou Softel Optic Co., Ltd.

    EOCM-7102 is the outdoor EOC Master of the EOC (Ethernet Over Coaxial) solution. It is in compliant with HomePlug AV standard. The EOCM-7102 have two EOC module. It provide two TV input, two com output and two 10/100/1000M auto-negotiation uplink ports.  It offers the high-speed data service to the customer based on the coaxial cable network. The EOC module in the EOCM-7102 is based the Qualcomm AR7410 chipset solution, with high anti jamming capability OFDM technology. The 7.5-65Mhz low frequency band is used for EOC signals. Built in high isolation filter as CATV RF and EOC signal mixer, the EOC signal and CATV signal in 87~862Mhz can running on one cable without interference. The EOC Master can provide high speed data service. The PHY Layer speed is 600Mbps, the MAC Layer throughput is up to 320Mpbs.

  • Acoustic Modem Option for Control Module

    Teledyne Marine Gavia ehf.

    ​Gavia AUVs can be fitted with the Teledyne Benthos ATM-900 Acoustic Modem. The ATM-900 Series Acoustic Telemetry Modem is the most advanced, multipath and noise tolerant, modem available. They are designed to meet both the high data rate requirements of commercial users, and the higher reliability, lower data rate requirements of the military. The modems employ two modulation techniques: phase shift keying (PSK), which provides the highest bit rate, and multiple frequency shift keying (MFSK), which provides reliability in a multipath environment, or when the modems are required to operate in a low signal-to-noise (SNR) environment. The ATM-910 Series can transmit data using PSK modulation for reception by a Gavia Modem Deckbox, but receives data using MFSK modulation only. MFSK modulation is a spread spectrum modulation process that transmits multiple tones simultaneously.

  • The Leading Measurement System for the Analysis of Porous Materials

    ELWIS - Autoneum Holding AG

    ELWIS (Evaluation of Light Weight Impedance System) offers a full and rapid characterization of porous materials based on the analysis of a single sample. The ELWIS system consists of the ELWIS-A and ELWIS-S components which can be used independently from each other although both applications are needed for a complete material simulation.ELWIS-A measures acoustic parameters that are needed to evaluate the acoustic performance of sound insulation and sound-absorbing multi-layer materials. An additional impedance tube for absorption measurements at higher frequencies is available for ELWIS-A.ELWIS-S measures structural parameters that are needed to simulate the dynamic and acoustic behavior of sound packages in the medium to low frequency range (including the "Poisson Ratio" for foam materials).ELWIS is very easy to operate: Thanks to its user-friendly software, the system can also be used to obtain reliable results by users with only limited experience in the characterization of porous materials.

  • Fuel Display Unit Tester

    MS 1125 - Meltronics Systemtech

    Fuel Display Unit Test Bench is a compact table-top test bench with front panel controls, indications, built-in signal simulator and necessary power supply for testing the serviceability of Fuel Display Unit of Helicopter. FTB operates on 230 V AC and supplies 28 V DC power to FDU. FTB is housed in a metallic cabinet FTB interfaces with both 61 Pin connector and 6-pin socket mounted on the rear panel of FDU by means of the cable connected to the unit.  FTB is fabricated utilizing off-the-shelf standard industrial/commercial components like rotary switches, toggle switches, press switches, test sockets, fuse holders, potentiometer etc. The Frequency generation circuit is integrated into FTB for the simulation of Fuel probe and flow rate signals. The frequency of the signal can be selected by means of a rotary switch Low amplitude sine wave signal is simulated for testing flow rates. Variable voltage DC power supply with a voltage range of 24 to 29 Volts is provided within FTB to power-up FDU. 5 V DC is provided for the operation of signal generating circuit (PIC Frequency Controller Board). An off-the-shelf Hand held battery operated Digital Multimeter (DMM) procured from the prominent manufacturer (FLUKE) is supplied with FTB for setting up and measurement of various parameters like Resistance, Voltage, Frequency etc.

  • Digital Multimeters

    Tektronix, Inc.

    *5½-digit resolution to 8½-digit resolution DMMs*6ppm basic voltage measurement accuracy on the 8½-digit DMM for calibration laboratories*Fast, 1 Msample/s sampling speed to capture complex, low level current profiles from IoT devices or other wireless devices*Sensitivity of 1 µΩ and 1 pA to test low power devices for research, design, and manufacturing test*A wide range of measurement functions such as DC and AC volts, DC and AC current, two- and four-wire Ohms, continuity, frequency, period, RTD, thermistor, and thermocouple temperatures, diode test, and capacitance*Numerous interface options including LAN/LXI, USB-TMC, GPIB, and RS-232 for data acquisition and automated testing*Intelligence to execute tests and create customized measurements with minimal PC interaction*Measurement expansion up to ten channels

  • FFT Analyzer Software Modules

    Metra Mess- und Frequenztechnik in Radebeul e.K.

    *Vibration analyzer for low and middle frequencies*Calculates the spectrum of vibration acceleration*VM-FFT+ also for velocity and displacement*RMS and peak spectrum*Envelope spectrum for roller bearing analysis with VM-FFT+*Limit curve with external alarms in VM-FFT+*Power spectral density (PSD) with VM-FFT+*Two measuring cursors for magnitudes and frequencies with snap-in function*Up to four signals per window*One VM-FFT license can be operated simultaneously up to four times with different settings*VM-SCOPE may trigger the frequency analyzer module VM-FFT*External messengers *Offline measurement

  • 50Hz-100kHz LCR Meter

    11022/11025 - Chroma Systems Solutions, Inc.

    0.1% basic accuracyTransformer test parameters (11025), Turns Ratio, DCR, Mutual Inductance0Hz, 60Hz, 100Hz, 120Hz, 1kHz, 10kHz, 20kHz, 40kHz, 50kHz, 100kHz test frequencies21ms measurement time (≥100Hz)Agilent 4263B LCR Meter commands compatible4 different output resistance modes selectable for non-linear inductor and capacitor measuringHigh resolution in low impedance(0.01mΩ) and high accuracy 0.3% till 100mΩ rangeAdjustable DC bias current up to 200mA (constant 25Ω) (11025)1320 Bias Current Source directly control capability0.01mΩ ~ 99.99MΩ wide measurement range (4 1/2 digits)Dual frequency function (11022 option) for automatic productionBIAS comparator functionComparator function and 8/99 bin-sorting functionPass/fail judge result for automatic productionHandler interface trigger edge (rising/falling) programmableTest signal level monitor functionStandard RS-232, GPIB, and Handler I/FOpen/short zeroing, load correctionLabView® Driver

  • Sound Level Calibrator

    TM 100 - Kusam Electrical Industries Limited

    • Standard : Confirms to IEC 942 Class 1.• Output Sound Level : 94dB and 114dB under reference.• Accuracy : ±0.3dB (20°C, 760 mm Hg)• Frequency of 1000 ± 0.1% Hz allows calibration with A / B / C or D weighting networks or linear.• Low Battery Indicator (LED).- Operating Temperature range : -10 ~ +50 C- Storage Temperature range : -40 ~ +65 C (with batteries removed).- Temperature Coefficient : 0 ~ 0.01 dB / C• Calibration of “1 and ½” ceramic microphones.• Altitude Effects : Approx. 0.1 dB decrease for each 2000 feet increase in altitude fromsea level to 12,000 feet elevation, or comparable atmospheric pressure change(approx. every 50 mm of Hg decrease).• Battery : Single 9V transistor Battery. (NEDA 1604)• Battery Life : Approx 100 hours.• Dimension : 48 x 48 x 138mm

  • LAN Cable Tester

    PA-01D - Pansco, Ltd

    The LAN cable tester is a versatile, full-featured tool for testing many kinds of network cable. Loopback and remote tests may be performed automatically or manually, and will test cable continuity as well as identifying opens, shorts, reversed wiring, and miswiring in cables up to 2,000 ft. long. Shielded connectors allow the tester to test shielded twisted pair (STP) cables. The built-in tone generator generates a low emission frequency tone which can be detected by any market tone probe, making it easier to trace and locate cables. Uses 1 9V alkaline battery. CE Approved.

  • Extended Range Shallow Water Multibeam Echosounder

    SeaBat T50 Extended Range - Teledyne Marine RESON B.V.

    The SeaBat T50 Extended Range is the very latest addition to the leading SeaBat T-series product range, engineered from the ground up to evolve with your business. Combined with a very compact Rack-mounted Sonar Processor (RSP), the SeaBat T50 Extended Range produces unprecedented clean data, at unprecedented resolution, providing faster operational surveys and reduced processing time.The SeaBat T50 Extended Range is fully frequency agile from 150 to 420 kHz, allowing for extremely high resolution surveys in very shallow waters and with the capability to operate out to about 900m water depth!The Rack-mounted Sonar Processor comes with an optional industry leading fully integrated Inertial Navigation System for accurate sensor time tagging and motion stabilization.The SeaBat T50 Extended Range is designed for very fast mobilization on any type of survey vessels, securing minimal interfacing and low space requirements – or it can be installed as a permanent installation in a sea chest or on a hoist system.​

  • Programmable AC Power Source

    Model 8600 Series - Aplab Limited

    - Compact size and light weight, standard 19″ rack construction- Step-less frequency setting from 45 to 450Hz- Very low distortion sine wave output- Output voltage range selectable 135 or 270V AC- Galvanically isolated input/output- Independent on/off switch for input and output- 16×2 vacuum florescent display for parameter display- Complete operation through push switches and a digital rotary encoder- Automatic protection against overload, short circuit and over temp.- Built in PFC to provide 0.99 input power factor and wide input range- Conforms to EN55022, class A, safety standard EN60950

  • 600A True RMS AC/DC Clamp Meter + NCV

    Extech EX655 - Extech Instruments Corporation

    The EX655 is a 600A True RMS AC/DC Clamp meter. This clamp meter also measures AC/DC voltage, resistence, capacitance, frequency, temperature, continuity/diode test and has an NCV detector. The EX655 has a 1.18" jaw size which accomodates conductors up to 350 MCM. This meter also features a 6000 count backlit LCD display, data hold, min/max, relative function,low pass filter, inrush mode, DC zero function, LCD trending bargraph, auto power off and a convenient LED worklight. Complete with test leads general purpose bead wire Temperature probe, and 3 AAA batteries.

  • 5-in-1 Environmental Meter

    Extech EN300 - Extech Instruments Corporation

    The EN300 Measures Humidity, Temperature, Air Velocity, Light and Sound. Rugged 5-in-1 environmental meter with tripod mount and RS-232 PC interface. Large dual LCD simultaneous display of Temperature and Air Velocity or Relative Humidity. Characters on display reverse direction depending on Hygro-Thermo-Anemometer or Light-Sound Mode. Data Hold, Min/Max, Auto power off, Low Battery/Overrange indication. Built-in low friction vane wheel improves accuracy of air velocity in ft/min, MPH, m/s, km/h, and Knots. Built-in precision thin-film capacitance humidity sensor for fast response. Built in thermistor for ambient temperature measurements. Type K input measures temperature to 2372° (1300°C). Utilizes precision photo diode and correction filter for Cosine and color corrected light measurements. Sound Level measurement meets IEC 61672 class 2 using A frequency weighting and fast response time. Complete with Type K thermocouple probe, pouch case, and six 1.5V AAA batteries.

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