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
Frequency Counter
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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Digital frequency counters
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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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Frequency Counters
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-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 Counters/Timers
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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 Counter, 30MHz to 800MHz, 500MHz to 2.8GHz, 7 Digits
72-7390
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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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Handheld Digital Multimeter, 4.5-digit, with Organic LED Display (OLED)
U1253B
Digital Multimeter
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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In-Circuit Testing and Test Engineering
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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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350 MHz RF Frequency Counter, 10 digits/s
53210A
Frequency Counter
Single-channel, RF frequency counter One 350 MHz input channel, plus optional second channel (6 GHz or 15 GHz)10 digits/second resolution Built-in math analysis and color, graphical display (trend and histogram)LXI-C/LAN, USB, GPIB Optional: Lithium Ion Battery BenchVue software enabled: Do more with your PC and instrument together, no programming required. Easily control your counters, quickly build automated tests and log data for faster analysis and save precious time.
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Function Generators
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PGP Electronics Private Limited
PGP Electronics Function Generators are a reliable source for different waveforms. Two units, function generator and frequency counter are integrated in to one unit. The built-in frequency counter can also be used to measure the external frequency.
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Portable Digital Oscilloscopes
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GAO Tek offers a variety of Portable Digital Oscilloscopes with long lasting battery life and durable design. These Portable Digital Oscilloscopes have a wide range of real-time sampling rate from 72 MSa/s to 25GSa/s. These Portable Digital Oscilloscopes also have other functions integrated into them such as a digital multimeter and a frequency counter. These portable oscilloscopes are designed for the sciences, medicine, engineering and telecommunications industry.
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Sound Level Meter
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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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Programmable Multifunction Generator
IST 5800/5850
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IST Information Scan Technology, Inc.
The IST-5800 series programmable multifunction generator is an exceptionally versatile and economical instrument for applications in R&D, Manufacturing Test, Service Repair and Training. Featuring an adjustable triple output power supply and waveform generator, it has the ability to provide power and signal sources for a circuit while the universal logic probe, auto-ranging frequency counter, and digital voltmeter allows you to simultaneously analyze and measure circuit activity.
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Automated Test Interface
ATI-100
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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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Frequency Counter
FC-2500A
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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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Universal Counter/Timer
PXIe-2461
Counter/Timer Module
The Astronics PXIe-2461 is a high-performance, 2-channel, universal 235 MHz frequency interval counter. Occupying a single PXI Express peripheral slot or hybrid slot, the frequency and time interval/counter (FTIC) offers 12 easy-to-use automatic measurement functions including:
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Handheld Digital Multimeter, 4.5-digit
U1252B
Digital Multimeter
The Keysight U1252B 4.5-digit handheld digital multimeter (DMM) is feature-packed to simplify the troubleshooting of electronics and electrical circuits on the bench or in the field. Key capabilities include manual and automated data logging to both DMM and PC. 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 U1252B 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 U1252B, you are well equipped to perform thorough troubleshooting of any faulty circuit.
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50 Ohm Bridge / Freq Counter
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* Generates a 3 to 30 MHz low level signal displayed on small 8 x 2 LCD * 50 ohm bridge supports tuning 50 ohm antennas * Adjust POT to find the resonate frequency of antenna * 30 turn POT allows easy smooth frequency adjustment * Bright red LED extinguishes when bridge is balanced * Function switching allows for use as frequency counter * 50 ohm termination included * measures 5.5 x 2.5 x 1.1 inches * 9 volt battery operation
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3MHz Function Generator + 60MHz Freq. Counter
FG 32
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6 function, 6 ranges. Frequency Range 0.5Hz~3MHz. Linear / Log sweep fucntion. Frequency Counter 0.2 ~ 60MHz. Frequency Counter Max. Resoltuion 0.001Hz¡C
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Function Generators
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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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Frequency Counter Series
FCA3000/3100
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Offering up to 20 GHz measurements, the Tektronix FCA3000 and FCA3100 Frequency Counter Series pack many different functions into one feature-rich instrument. With unprecedented resolution, you can capture very small frequency and time changes. And with the industry's most comprehensive analysis modes, including measurement statistics, histograms, and trend plots, you have the tools you need to quickly and accurately analyze your signal.
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Frequency Counter with Rubidium Timebase
SR625
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Stanford Research Systems, Inc.
The SR625 Frequency Counter is a NIST traceable frequency counting standard for calibarating base stations, transmitters and many other types of communication systems.
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InfiniiVision Oscilloscopes
3000T X-Series
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100 MHz - 1 GHz, DSO and MSO models Speed testing with simplified operation and documentation enabled by the 8.5-inch capacitive touch screen Isolate signals in seconds with exclusive Zone Touch Triggering See the most signal detail with 1,000,000 wfms/s update rateQuickly modulate and characterize signals with built-in WaveGen 20 MHz ARB, 3-digit voltmeter and 8-digit frequency counter & totalizer options Decode serial busses faster with hardware-based serial analysis options Protect your investment with full upgradeability
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Microwave Frequency Counter (up to 40GHz)
S4382
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Saluki S4382 series microwave frequency counter adopts microwave sampling technology to realize microwave measurement. The function control, measurement sequence and data processing of the whole measurement process are completed by the internal microprocessor. It is a new generation of intelligent microwave frequency measurement instrument. The instrument adopts medium and large scale integrated circuits and some monolithic integrated circuits with excellent performance, which makes the design of the instrument more reasonable, with low power consumption and high reliability.
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Mini Receiver
FB7-NX
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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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Universal Frequency Counters
GT210PXI-2
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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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Power Limiters
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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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Voltmeter
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The Voltmeter (like the Sound Level Meter and Frequency Counter) can be positioned anywhere on the screen. 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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Time Interval Counter PXI Card
GTX22x0
Interval Counter
The GTX22x0 family of PXI universal time interval counters offer many of the measurement and timing functions of high-end stand-alone frequency counters, including accumulate, auto ratio, frequency, fast frequency (GTX2220 and GTX2230 only), period, ratio, single period, test clock, time interval, time interval delay, totalize, totalize gated, totalize gated once, & pulse width.
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Digital Frequency and Multifunction Counter
IBL-FC1300
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International Biological Laboratories
This is an Intelligent Dual Channel Frequency Counter and has 8 digits LED Display. It measures frequency up to 1.3 GHz.





























