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Frequency Counters
measure frequency by comparing the signal to the counter's time base oscillator.
See Also: Universal Counters, Time Interval Counters
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Frequency Counters/Timers
The Tektronix FCA Series frequency counter / timer / analyzer packs the functionality of a frequency counter, frequency meter and timer into one feature-rich instrument. With unprecedented resolution, you can capture very small frequency and time changes. Tektronix frequency counters and timers offer comprehensive analysis modes, including measurement statistics, histograms, and trend plots.
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Frequency Counters
Handheld and bench-top frequency counters up to 6GHz Universal counters with VLF capability and pulse measurement and totalizing in addition to frequency/period.
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Frequency Counters
Frequency Counters measure frequency, period, time interval, pulse width, duty cycle, frequency ratio, phase, and more. Frequency counter products include options that are compatible with Astronics/Racal VXI-2461C, which can be used for automated test aerospace and defense applications.
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Universal Frequency Counters
GT210PXI-2
GuideTech’s GT210PXI-2 3U form factor, meets industrial standard chassis with an expandable platform, achieving optimal test system with optimal cost. The ability to precisely resolve frequency and time yields both increased accuracy as well as reduced measurement time.
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Time and Frequency Counters/Analyzers
These products are characterized by ultra-high speed and resolution with advanced graphics, zero dead-time, Allan deviation measurement, modulation domain analysis and overall the highest-performance frequency measuring instruments. Various models offer portability with battery-option and range up to 60 GHz. Software can extend the capabilities of the measurement hardware. An example is the TimeView software package to offer comprehensive frequency analysis in the time-domain.
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Power Limiters
Keysight's power limiters provide the best broadband input protection from excess RF power, DC transients and ESD, for a variety of RF and microwave instruments and components. For example, the input circuitry of spectrum analyzers, network analyzers, frequency counters or amplifiers can be protected from unintentional inputs up to 5 watts average power. At even greater power levels, failure mode for the limiter is either an open circuit or a short circuit to ground, thereby protecting the instrument from damage.
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Handheld Digital Multimeter, 4.5 digit, up to 800 hours battery life
U1282A
60,000 counts resolution on dual display0.025% basic DC voltage accuracy Longer battery life up to 800 hours Certified to IP 67 for dust and water protection Tested to withstand a 3-meter (10-ft) drop Programmable via USB (Download Programming Guide here)CAT III 1000 V/ CAT IV 600 V overvoltage protection Vsense for non-contact voltage detection Square wave output for generating pulse width modulation (PWM) signal Frequency counter Low pass filter
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Mini Receiver
FB7-NX
In about 1935, the National Radio Company of Malden, Mass., brought out a “hot” high frequency receiver, called the FB7, and the subsequent FB-7X. It featured a super-hetrodyne design with plug-in coils that gave it a broad frequency range. The “X” model also incorporated a crystal filter in the intermediate frequency section, thus giving it additional selectivity. The receiver was viewed by radio amateurs as a technological breakthrough, and it was also used commercially for point to point high frequency communications. As the receiver did not have an internal RF amplifier section, a separately tunable RF amplifier was later provided in a separate enclosure for additional performance capabilities. Now, National RF, Inc., is resurrecting the fabled receiver name with an all solid-state, hot mini receiver, which also utilizes plug-in coils to cover the HF spectrum. The mini-receiver is designed for use by radio amateurs as well as serious short-wave listeners, and allows reception of AM, CW, and SSB signals. It incorporates a super-hetrodyne design with a dual gate FET built-in RF preamplifier and a ceramic filter for selectivity, often required when used in a crowded amateur radio band. In addition, the receiver has a buffered rear panel output of the high frequency oscillator for use with either a frequency counter for exact receive frequency display, or for interface with an outboard transmitter. A rear panel jack is also provided for muting the receiver when a transmitter is placed into the transmit mode. And, the receiver is small enough to fit into carry-on luggage and taken on trips when it is desired to “keep an ear” on amateur radio or other high frequency activity. The receiver utilizes rear panel plug-in coil assemblies which contain the RF amplifier, mixer, and oscillator tuned circuits. Each plug-in coil assembly also comes with a separate dial scale, which is inserted onto the front panel for displaying the tuned frequency. A very smooth 6 to 1 planetary drive is used for tuning the receiver. Other front panel controls include RF preamplifier peak, volume control, Beat Frequency Oscillator adjustment, and RF gain control. Other switches include filter bandwidth, AM/CW/SSB selection, Power, and a general coverage/band spread control for certain plug-in assemblies. The receiver is intended to drive head-phones via a rear panel jack, but has sufficient output to drive a small external speaker.
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Handheld Digital Multimeter, 4.5-digit, with Organic LED Display (OLED)
U1253B
The Keysight U1253B 4.5-digit handheld digital multimeter (DMM) is feature-packed to simplify the troubleshooting of electronics and electrical circuits indoors, on the bench or in the field. Key capabilities include its organic LED (OLED) display that provides razor-sharp readings even in dark, off-angle situations. The U1253B is the world's first OLED handheld DMM of its kind. For those long, continuous measurements, the DMM equips you with the easy-to-use GUI data-logging software to automate virtually unlimited data recordings to PC. The U1253B comes with an integrated 20 MHz frequency counter for high frequency measurements, and a built-in programmable square-wave generator with selectable frequency and duty cycle. With the versatile U1253B, you are well equipped to perform thorough troubleshooting of any faulty circuit.A multi-award winner
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10Hz-150KHz Frequency Counter
HCF-F1000L
FEATURE:*Period,totalize measurement self test*High sensitioity:85dBV (25mVrms)*Stability:±3x10-9/s*8 digit LED display*Gate Time:0.01s,0.1s,1s*Power supply:AC 220V(110V optional)
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AC/DC Clamp Meter
2660 CL
Standard Electric Works Co., Ltd
● 4000 counts.● Voltage measurement, current measurement, resistor measurement, frequency counter, capacitor measurement.● Bargraph indication.● Range change function.● Data hold function freezes the reading.● REL function.● Peak function.● Diode measurement.● Max / Min function.● Continuity check.● Low battery indication.● Auto Power Off (APO) function.● Safety design throughout with no exposed metal parts, shielded banana plugs and recessed input terminals.
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HF Frequency Counter LXI, GPIB/IEEE48
53210A
For fast and accurate frequency and time-interval measurements, you need reliable devices in research and development. The Keysight 53210A HF frequency counter meets the requirements with its high accuracy, bandwidth and speed. Depending on the application and budget, choose one of the three available models. The connection to the PC is via USB, Ethernet/LXI or via GPIB.
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50MHz USB Pen-Style Frequency/Period Counter
USBcount50
USBcount50 is a new concept in USB Frequency Counter products. PC based frequency counters deliver many user benefits including flexibility, ease of use and economy. They are an invaluable tool during design and debug of digital circuits and can be used to quickly to verify generated frequencies, pulse widths and duty cycles .
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PCI Digital I/O
APC464
Four 16-bit multifunction counters/timers are configurable for pulse width modulated output, watchdog timer, event counter, frequency measurement, pulse width measurement, period measurement, or one shot pulse output. The four 16-bit counters can also be configured into two 32-bit counter/timers.
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Frequency Counters
-Frequency Range : 0.2Hz to 5.5GHz Built-in CMOS Gate Array Fast, High-Resolution, 10 Digits Green LED Display Microprocessor Controlled Reciprocal Technique for Low Frequency Resolution Self Diagnosis Routine Total, RPM Function, Period Low Pass Filter(100KHz, -3dB) Rs-232c Interface(Option)
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Frequency Counter
FC-2500A
High sensitivity for the VHF & UHFfrequency measurement, useful for theCB amateur.* Handheld & pocket size instrument.* Wide measuring range up to 2.6 GHz.* Good resolution, 0.1 Hz min. displayunit for 10 MHz range.* Used the exclusive Microprocessor ICoffered the intelligent function:Frequency, Period, Multi resolution,Data hold, Relative measurement, Datarecord( Max., Min., Average reading).* Auto power off & manual power off.* LCD display for low powerconsumption & clear read-out even inbright ambient light condition.
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Frequency Counters
Combines a calibrated RMS RF Power Meter, a wide-band frequency counter, and a RF Signal Generator into one miniature USB device. Incredibly useful in production verification environments and other automated test setups.
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Sound Level Meter
The Sound Level Meter is shown positioned near the top of the main Daqarta window. Like the Voltmeter and Frequency Counter, it can be positioned anywhere on the screen, and the size of the display font changes when you resize the meter by dragging its borders. You can fill the screen for a really big readout that can be seen from across the room.
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In-Circuit Testing and Test Engineering
5184 Test NodesHPUX or Windows60 Mhz ASRU Frequency Counter, Timer10 Mhz Clock, 6 Mhz data ratesVector Test for VLSI, PLCC & ASICSTestjet and VTEP Vectorless TestingAdvanced Boundary ScanSilicon Nails AvailableSeries V upgradeable
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0.1Hz-3MHz Functional Generator
MFG-3003
Features:*Frequency of the models: 0.1Hz~2MHz/5MHz/10MHz/13MHz/15MHz*Output waveform:Sine,Triangle,Square,±Ramp,±Pulse*Voltage Control Frequency (VCF) capability*TTL/CMOS and OUTPUT synchronous output*Less than 1% distortion at 10Hz~100kHz*Less than 0.5dB frequency response at 0.1Hz~100kHz*1Hz~30MHz frequency counter*AM/FM function optional (models with suffix "A" include this function)*FM/Sweep function optional (models with suffix "C" include this function)
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5 / 10 / 20 MHz Multiwaveform Arbitrary Signal Generator
MASG Series
- Economic and Light Weight- Dual Output with Same Characteristic- 1µHz Frequency Resolution- 11 Built-in Waveforms and 5 User defined Arbitrary Waveforms- AM, FM, PM, PWM, FSK Modulation, Frequency Sweep and Burst Function- Built-in 100MHz Frequency Counter- Arbitrary Waveform Editing PC Software- USB Host, USB Device
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Digital frequency counters
The instrument is equipped, in addition to the 20 Hz-160 MHz input, a second input for measurement up to 2.4 GHz with an impedance of 50 Ohms.
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Digital Frequency Counter
PGP Electronics Private Limited
PGP Electronics Digital Frequency Counter, model 3503 is a very useful instrument for the measurement of frequency. It employs state of the art micro controller technology to provide accurate measurement. It has a 6 digit auto range display. Further, for easy readability of the units of the measurement, the Hz, KHz and MHz are indicated by LEDs .
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Counters & Frequency
NLS panel mount digital counters, frequency meters, and interval timers are available in four case sizes and feature a wide range of functions. These versatile, rugged, and low cost meters find many applications. Features in various meters include highly accurate crystal time base circuitry, counts of up to one million per second, frequencies to 60 MHz, battery back-up and a presettable decimal point. Multiplexed BCD outputs are also available for some meters.
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Frequency Counter, 30MHz to 800MHz, 500MHz to 2.8GHz, 7 Digits
72-7390
Rugged instrument is smaller than a deck of cards, yet provides frequency measurement of digital, on/off keying and analog signals from 30MHz to 2.8GHz. It is perfect for displaying the output of two–way radio equipment, analog and digital cell phones, RF remote controls and many other items. Internal vibrator alert also makes this an outstanding device for detecting transmitters in counter–surveillance applications
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Automated Test Interface
ATI-100
Matrix Test Equipment Incorporated
Now, with our ?New? Model ATI-100 you can turn your existing Matrix Signal Generator and Switchable Filter Bank into a full-blown DTS (Distortion Test System). Plug and play is the word, just plug in your Multiple Frequency Signal Generator, Switchable Filter Bank, Spectrum Analyzer, Oscilloscope, Power Meter, Frequency Counter, etc. to allow the following automatic testing with a single insertion of DUT (device under test
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0.1Hz-2MHz Functional Generator
MFG-3002
Features:*Frequency of the models: 0.1Hz~2MHz/5MHz/10MHz/13MHz/15MHz*Output waveform:Sine,Triangle,Square,±Ramp,±Pulse*Voltage Control Frequency (VCF) capability*TTL/CMOS and OUTPUT synchronous output*Less than 1% distortion at 10Hz~100kHz*Less than 0.5dB frequency response at 0.1Hz~100kHz*1Hz~30MHz frequency counter*AM/FM function optional (models with suffix "A" include this function)*FM/Sweep function optional (models with suffix "C" include this function)
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Audio Spectrum Analyzer
OscillometerXZ
OscillometerXZ is an Audio Spectrum Analyzer for real-time, FFT. Offers several functions like OscilloScope, Frequency counter, voltmeter, noise and distortion meter, phase shift meter.
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Function Generators
Scientific Mes-Technik Private Ltd
Scientific offer wide range of function generators from 3 MHz to 10 MHz in general purpose and multifunction. Selection of waveform shapes apart from standard sine, triangle , square to ramp, pulse are available. SM5071 , SM5074 , SM5061 & SM5075 have built-in auto ranging frequency counter. The outputs are protected against short circuits and overload.
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0.1Hz-10MHz Functional Generator
MFG-3010
Features:*Frequency of the models: 0.1Hz~2MHz/5MHz/10MHz/13MHz/15MHz*Output waveform:Sine,Triangle,Square,±Ramp,±Pulse*Voltage Control Frequency (VCF) capability*TTL/CMOS and OUTPUT synchronous output*Less than 1% distortion at 10Hz~100kHz*Less than 0.5dB frequency response at 0.1Hz~100kHz*1Hz~30MHz frequency counter*AM/FM function optional (models with suffix "A" include this function)*FM/Sweep function optional (models with suffix "C" include this function)