Radio Frequency
3 kHz to 300 GHz or a frequency < microwave.
See Also: Radio, Software Defined Radio, Ham Radio, Mobile Radio, RF, Microwave, VHF
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Narrow-band UHF/VHF Radios
UHF and VHF radio products are used in narrowband RF (radio-frequency) telemetry systems. These systems consist of a radio modem and low-powered transceiver at the remote station(s), and a transceiver connected to a modem or base station at the computer site. Up to 254 stations can be interrogated over a single UHF or VHF frequency.
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Near Radio Field Meter
NRFM-1000
Locate and Identify Hidden Radio Transmitters (Bugs) with our precision meter and included earphone.
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Frequency Discriminators & IFM
PMI offers a full line of RF and Microwave frequency discriminator products that range from a few MHz up to 18.0 GHz. Many options are available. If you do not see exactly what you need, please e-mail your requirement to sales@pmi-rf.com so we can propose an instant solution.
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Time & Frequency Standards
Meridian II Precision TimeBase
The Meridian II Precision TimeBase is a modular, network-centric, time & frequency standard that provides the most precise and stable, GPS-synchronized, time & frequency outputs in the world. Unlike our competitors, we fully specify the performance of Meridian II and back it up with published data measured at NIST.
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Frequency Converter
A frequency converter, also known as a frequency changer, is a device that takes incoming power, normally 50 or 60 Hz and converts it to 400 Hz output power. Different types of power frequency converters exist, specifically, there are both rotary frequency converters and solid state frequency converters. Rotary frequency converters use electrical energy to drive a motor. Solid state frequency converters take incoming alternating current (AC) and converts it to direct current (DC).
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Frequency Response Analyzers
The PSM range of instrumentation provide not just conventional frequency response measurements but can also be combined with an Impedance Analysis Interface to form a high accuracy impedance analyser, in the case of the PSM3750 this solution is able to provide impedance analysis up to 50MHz
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Radio Department
Aero Instruments & Avionics, Inc.
The Radio Department offers complete testing, repair, and overhaul of Collins, Honeywell (formally Bendix/King) ARINC 500 and ARINC 700 series avionics, as well as the Collins Proline radio equipment.
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Light-to-Frequency
Light-to-Frequency (LTF) sensors convert measurements of light intensity to a digital form for direct interfacing to a microcontroller. The output of the device is a square wave or pulse stream the frequency of which is linearly proportional to the light intensity. LTF converters are designed for applications such as ambient light measurement, light absorption/reflection in products such as white goods, photographic equipment, colorimetry, chemical analyzers and display contrast controls. They may be used in any system that requires a wide dynamic range, and/or high resolution digital measurement of light intensity.
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Universal Software-Defined Radio
VPX3-E320
Curtiss-Wright Defense Solutions
Designed for superior durability and reliability, the VPX3-E320 incorporates Curtiss-Wright’s industry-leading rugged hardware design and validation practices to meet the stringent requirements of the most demanding front-line environments. Paired with the industry-leading UHD based software-defined radio workflow, this product is truly unique.
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Frequency Response Analyzers
7400 Series
The Venable Model 7400 Series is the top of the line in Venable performance, supplying 4 channels for increased testing, measurement and analysis functionality. Originally designed for measuring 3-phase impedance and source and load simultaneously, the Model 7400 is a robust solution for organizations requiring high availability for high volume and/or simultaneous testing.
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Shaper Of The Reference Frequency
MFC
The mezzanine module (mezzanine) of the MFC is designed to reproduce on six output lines high-precision frequency values obtained by dividing the frequency from the built-in reference frequency generator.
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Mobile Radio Direction Finder
Doppler Systems offers mobile direction finders for frequencies from 100 to 1000 MHz. The mobile system uses the same DF processor fixed site systems. The mobile antenna utilizes roof mounted summing units and four vertical antennas. Band switching is achieved either by removing one set of antennas and installing another set or we also offer multiple summing unit options that facilitate band switching from within the vehicle.
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Frequency Generation & Monitoring
Timetech reference generators, phase comparators, and synchronized oscillators.
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Radio Based Ammeter & Voltmeter
Troubleman’s Kit
The SensorLink Troubleman's Kit consists of the Radio Ampstik and the radio-based Voltstik. These instruments are designed to assist the modern day electric utility troubleshooter in resolving problems in their low and medium distribution circuits.
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Frequency Calibrator
VCH-313
The frequency calibrator VCH-313 is designed to determine the frequency error and calibrate frequency standards of various types based on the signals of the NSC SNS GLONASS/GPS .
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Passive Frequency Multipliers
The frequency multiplier which generates output with power level less than input power.
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Frequency Ranges
1398A
The useable frequency range is from 5 Hz to more than 10 times higher than that listed in the table below, e.g. T2.5-1 volt and T5-2 volt can be used beyond 10 MHz.
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Frequency Large Display Indicator
Signals & Systems India Private Limited
Large Display indicator measures and displays frequency from the input like supply voltage, 4-20mA and data received from other equipment. It meets high accuracy of 0.1% to measure Frequency. The large display is for clear visibility of the frequency reading from long distance. It is equipped with high bright red color 7segment displays. These are commonly used in Power plants, Substations, Manufacturing units and Field environments to provide direct frequency measurements of various devices.
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Digital Frequency Meter
CSF-400
Measuring frequency. Accuracy: +/- 0.05%. 4 Digital display: 9999 Input Max. 400Hz/600 V, 30KHz/12V. Aux. Power AC 115/230V +/-15%, 50/60Hz. Isolation Aux. Power 12Vdc, 24Vdc, 48Vdc, 110Vdc available in option. Easy-to-wire, screw type terminal. Outside dimensions is DIN standard (96mm x 48mm) High stability & low cost.
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Redundant Frequency and Timing Systems
A unique feature of our frequency standards and distribution amplifiers is that the two separate parts of the redundant system are identical and can easily be inter-changed, for maintenance purposes. What we mean by this is that that we don't have a "Master" unit and a "Slave" unit. Whatever unit is powered up first becomes the master unit and the other becomes the slave unit.
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Cold-Atom Frequency Standard
Rack-mount microwave atomic clock using laser-cooled 87Rb atoms. Production unit target specifications: Allan deviation 2×10-12 @ 1 s, 2×10-14 @ 104 s; flicker floor 1×10-14; absolute accuracy < 1×10-13.
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Neodymium Low Frequency Transducers
High energy neodymium magnetic designs, complex cooling systems and new technologies for high-power handling, minimal distortion and low weight.
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SDIO- Low Power Radios
Its industrial temperature support, robust enterprise security and 802.11ac capabilities make it an ideal solution for applications like factory automation with demanding environmental conditions such as with extreme temperatures, dirt, dust, moisture, shock, and vibrations. Its low power consumption also makes it suitable for portable handheld devices.
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High Frequency Surge Testers
The 50KV Digital P J High Frequency Surge Tester is the most powerful tester in a class of its own. No other 50KV Surge Tester can pulse/resonate 60 pulses per second at a risetime of 100 nano seconds.This powerhouse is loaded with the TDS3012B Digital Phosphor colored oscilloscope with a built-in floppy disk drive.
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Integrated Frequency to Voltage Converter
FV
The FV6 Frequency to Voltage Module provides a convenient method of converting up to six frequency signals to analog voltages that can be fed into common data acquisition equipment.
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USRP Software Defined Radio Stand-Alone Device
The USRP Software Defined Radio Stand-Alone Device consists of an onboard processor, FPGA, and RF front end. You can program this device using either LabVIEW Communications System Design Suite or an open-source software workflow, depending on the operating system you choose. You can provision the device with NI Linux Real-Time, Linux Fedora, or Linux Ubuntu real-time operating systems. The USRP Software Defined Radio Stand-Alone Device enables you to prototype a range of advanced research applications such as stand-alone LTE or 802.11 device emulation; Medium Access Control (MAC) algorithm development; multiple input, multiple output (MIMO); heterogeneous networks; LTE relaying; RF compressive sampling; spectrum sensing; cognitive radio; beamforming; and direction finding.The registered trademark Linux® is used pursuant to a sublicense from LMI, the exclusive licensee of Linus Torvalds, owner of the mark on a worldwide basis.
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Frequency Dividers
Precision Test Systems manufacturers' various divider boards as options to its range and frequency standards and distribution amplifiers.
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1229a Frequency Generator
Precise Time and Frequency, Inc.
The ptf 1229A utilizes the latest technological advances in precision frequency synthesizers to provide a multiple output, wide range, high precision frequency reference instrument, capable of delivering frequencies over the range of 0.1Hz up to 30MHz with a resolution of 0.1 Hz over the full range.The unit includes an external reference input to allow extremely high accuracy outputs at precisely the frequency required, together with a front panel indicator to verify “lock” to the external reference. The standard unit includes two independent frequency outputs of any frequency within the range, and provides both sine and square wave outputs for each frequency.An expansion module gives the capability to increase the number of independent frequency outputs up to a total of four frequencies, with sine and square wave outputs for each, giving a total of eight outputs.
