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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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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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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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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Universal Frequency Counter LXI, GPIB Interface
53230A
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For fast and accurate frequency and time-interval measurements, you need reliable devices in research and development. The Keysight 53230 universal frequency counter meets the requirements for this 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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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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Frequency Counter (225MHz - 18GHz)
S43180
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S43180 series high-precision frequency counter is a high-precision frequency measurement instrument. It has a frequency measurement resolution of 10 bits per second. The whole machine scheme adopts countdown technology and digital interpolation technology to realize the high-precision measurement of the instrument. It has measurement functions such as frequency, period, frequency ratio and powerful mathematical statistics operations (maximum value, minimum value, average value, PPM, standard deviation, Allan variance).S43180 series has reliable performance, complete functions, high measurement accuracy, wide frequency measurement range, high sensitivity, large dynamic range, high cost performance and easy to use. It is especially suitable for frequency measurement in scientific research and measurement fields such as aerospace, crystal oscillators, and components.
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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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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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Counter/Frequency Modules
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ADAM-5000 frequency and counter modules are bi-directional and can be remotely configured to up/down, counter, frequency, and alarm setting modes.
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0.1Hz-10MHz Functional Generator
MFG-3010
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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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Signal Generator
MAG-2015AD
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Feature:*Signal frequency: 0.1Hz~15MHz, continued*Wave form: square,sine*Output attenuator: 0dB,20dB,40dB,60dB*Output level: 20Vp-p in open ciruit,not less than 10Vp-p with 50Ω load*Rising edge of Square not more than 35ns at 2MHz*Sine distortion less than 1%,amplitude-frequency characteristic ±0.5dB with in 2MHz, ±3dB above 10MHz*Frequency Counter: 20Hz~30MHz*Power supply: AC 220v (110v optional)
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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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0.1Hz-3.7GHz Frequency Counter
FC-3000
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Features:*Frequency measuring range: 0.1Hz to 100MHz in A input, 80 MHz to 3.0GHz in C input.*Period,Total and RPM measurement for input A*9 Digit display with 0.01mHz resolution in 1 Sec (By Ext.Reference signal).*RS-232C serial interface function for communication with computer.*High sensitivity Extemal reference input function(>=1.5Vrms).*Peciprocal technique for high resolution at low counting frequencies .*Self check function executed to perform a automatic self diagnosis of various counter function.*Push-scanning for selecting Function and Gate time.*Low-pass filter(100KHz,-3dB)installed for removing noise signsl in low frequency measuring.*AC/DC coupling function(Selectable AC/CD Coupling)*10:1 Input Attenuation(Selectable×1/×10 Attenuator)*Data hold function
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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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Counters
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For fast and accurate frequency and time interval measurement you need reliable equipment in research and development. The Keysight 53210A RF frequency counter fulfills the prerequisites for this with its high accuracy, bandwidth and speed. Depending on your application and budget, choose one of the three available models. The connection to the PC is via USB , Ethernet / LXI or GPIB .
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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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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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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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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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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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Resonance Dip Meter
NRM-2
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National RF’s Resonance Dip Meter is a test instrument used to determine the resonant frequency of a tuned circuit or resonant network, such as an antenna system. In addition, the unit may function as an RF detector, or a secondary frequency source. The instrument is analogous to the older vacuum tube “grid dip meter,” once popular in every electronic laboratory or radio station. Unique to this updated version is a buffered output that may drive a digital frequency counter for exact measurement of resonant frequency, or connected to an oscilloscope to be used as an RF detector and waveform/modulation monitor.
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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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Arbitrary Function Generators
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PeakTech Prüf- und Messtechnik GmbH
This arbitrary waveform generator has excellent technical properties, a variety of functions. In addition to the frequency sweep, burst and modulation functions, this device also has a 7-digit frequency counter with a wide range of measurement functions up to 350 MHz. Due to the high number of functions and easy handling, this device is ideal for almost all tasks in research, development and training.
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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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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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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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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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0.1Hz-15MHz Functional Generator
MFG-3015
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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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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.
