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
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Frequency counter models can be direct or reciprocal counters. Direct counting models count signal cycles for a specified period, called the gate time, and resolution is in Hertz. Reciprocal counters provide faster, higher resolution performance, with resolution listed is in digits/second. When shopping for a counter, remember to review resolution and accuracy as separate specifications. The resolution of a frequency counter is the smallest change it will detect between closely spaced frequencies.
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Frequency Counters
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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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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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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
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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Frequency Counters
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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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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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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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Millimeter Wave Frequency Counter 70-170 GHz
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Insight Product Co. offers the electronic frequency counter for frequency measurements of millimeter wave generators of continuous or pulsed signals. The counter has an auto and waiting modes of operation and a direct 6-digits reading in frequency range (70-170) GHz without an external mixer.
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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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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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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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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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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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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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Time Interval Counter PXI Card
GTX2200 Series
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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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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HF Frequency Counter LXI, GPIB/IEEE48
53210A
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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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AC/DC Power Clamp Tester
IBL-307
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International Biological Laboratories
This Digital Clamp On Power Meter Model 307 can be used to measure True Power, Apparent Power and Power Factor in single phase circuits. It measures AC/DC Current and incorporates a frequency counter. It is autoranging type Digtal Clamp On Power Meter and has 3-3/4 Digits 4000 Counts with 40 segment analog bargraph LCD Display.
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50MHz USB Pen-Style Frequency/Period Counter
USBcount50
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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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Time Interval Counter Card
GC2200 Series
Interval Counter
The GC22x0 family of PCI 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 (GC2220 and GC2230 only), period, ratio, single period, test clock, time interval, time interval delay, totalize, totalize gated, totalize gated once, and pulse width.
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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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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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5 / 10 / 20 MHz Multiwaveform Arbitrary Signal Generator
MASG Series
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- 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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Audio Oscillators
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Frequency Range : 10Hz to 1MHz in 5 Decade Steps Very Low Distortion : <0.5% Output Voltage : 22.6Vp-p Open Circuit Sine Wave and Squre Wave Easily Choice Built-in 4 Digits Frequency Counter with Internal/External Varialble Frequency with Poly Varicon 400Hz and 1kHz Fixed Special Function Compact Design and easy Operation 2. Accessories Spare Fuse : 1EA Operator''s Manual : 1EA Power Cord : 1EA BNC Cable : 1EA
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0.1Hz-2MHz Functional Generator
MFG-3002
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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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8-Channel, 100 MHz Counter/Timer/Frequency Meter Function Card
ProDAQ 3808
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The ProDAQ 3808 function card, an enhanced version of the ProDAQ 3806 counter/timer function card, is designed to operate in one of three modes: pulse counter, frequency meter, or time interval counter. In the pulse counter and frequency measurement modes, users can process incoming signals of up to 25 MHz on each of the six channels. A time interval counter range is divided into six sub-ranges, covering times from 40 ns to 20000 s with a maximum resolution of 10 ns. For pulse-width measurements, the same ranges apply.
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10Hz-150KHz Frequency Counter
HCF-F1000L
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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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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.





























