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Frequency Standards
Devices that produce a known frequency.
See Also: Hydrogen Frequency Standards, Rubidium Standards, GPS Clocks
- Pickering Interfaces Inc.
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Standard Voltage 9 Pin D-Type Connectors for Pickering
The connectors below are suitable to use with Pickering cards and modules that utilize a standard voltage 9-pin D-type connector.
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Standard 1.90 (53.90) - 8.00 (226.80) High Frequency Probe
CSP-40L-013
Nominal Impedance (Ohms): 50Dielectric VTE Rating (k VAC): 1Bandwidth @ -1dB (GHz): 6.00Return Loss @ -20dB (GHz): 2.30Test Center (mil): 250Test Center (mm): 6.35Full Travel (mil): 200Full Travel (mm): 5.08Full Travel Remark: Shield: 275 (6.99) including travel of probesRecommended Travel (mil): 133Recommended Travel (mm): 3.38Recommended Travel Remark: Shield: 211 (5.36) including travel of probesOverall Length (mil): 1,151Overall Length (mm): 29.24
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Coupling Decoupling Network for Conducted Common Mode Immunity Testing According to IEC 61000-4-6
CDN
The CDN M5 is intended to inject common mode disturbance signals to power supply of mains lines (unscreened) in the frequency range from 150KHz to 230MHz. A variety of calibration adapters and other accessories are available as an option. RF Standard connector: BNC type, AC socket 4mm safety bananas.
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3207a GPS/GNS Frequency and Time Reference
GlobalTyme2
Precise Time and Frequency, Inc.
The ptf 3207A GlobalTyme2 GNS Receiver introduces a new level of advanced capability from a second generation, based on the highly successful ptf 3203A and ptf 3204A GlobalTyme receivers.The unit is both a frequency standard and a time standard and has been used as a precision frequency reference with low phase noise, in satellite communications applications around the world.
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GPS Synchronized Clocks
Brandywine Communications offers high quality time and frequency GPS Synchronized clocks with budget friendly costs in a variety of formats such as the NFS-220 and the NFS-220 plus. Built at our ISO9001 accredited design and manufacturing facility in Tustin, CA, these U.S. made time and frequency standards incorporate a GPS receiver which continuously calibrates the internal precision clock to provide both time of day and frequency in a variety of output formats and interfaces.
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REMOTE-CONTROLLED SIGNAL GENERATOR
ASX-16C/D
Matrix Test Equipment Incorporated
The Model ASX-16C/D is a newer design version of the standard Model ASX-16C. The use of enhanced technology allows greater frequency trim (+/- 25 KHz) while maintaining the excellent noise and distortion performance of the ASX-16C. The Model ASX-16C/D also provides linear monotonic carrier level control over a 15 dB range in 0.025 dB steps
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Rubidium Instruments
Our range of atomic / rubidium disciplined time and frequency standards in a variety of enclosures and sizes to suit all appliations. These acurate time and frequency references are used in telecoms, aviation, nautical and precision test and measurement enviroments.
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PXI-5670, 2.7 GHz RF Vector Signal Generators
PXI-5670 / 778768-03
2.7 GHz PXI Vector Signal Generator—The PXI‑5670 has the power and flexibility you need for product development applications from design through manufacturing. It can generate custom and standard modulation formats such as AM, FM, PM, ASK, FSK, PSK, MSK, and QAM. The PXI‑5670 delivers a highly flexible and powerful solution for scientific research, consumer electronics, communications, aerospace/defense, and semiconductor test applications as well as for emerging areas including software defined radio, radio frequency identification (RFID), and wireless sensor networks.
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Dual-ridge Horn Antenna 1 to 18 GHz
EH118
EH118, a dual-ridge horn antenna that will operate from 1 to 18 GHz. This antenna has a balanced, smooth antenna factor curve that extends all the way to 18 GHz, a reduction of higher order modes on the aperture, and low return loss (SVSWR). The EH118 is applicable for commercial, military and automotive test standards and will include applicable calibrations. The EMC dual-ridge horn antenna offers these key features: single linear polarization, smooth/balanced gain with frequency, low return loss /VSWR, and ultrawide bandwidth (18:1).
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NI-9208, 500 S/s, ±20 mA, 16-Channel C Series Current Input Module
780968-01
500 S/s, ±20 mA, 16-Channel C Series Current Input Module - The NI‑9208 is designed with industrial systems in mind. It includes a high-resolution mode with 50/60 Hz rejection to remove low frequency noise. It has high-channel density to reduce the number of modules needed, which leaves slots open for other measurement types or for reducing the overall per channel cost of the system. The NI‑9208 uses a standard D‑SUB connection for use with cables and connector blocks.
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Real-time Spectrum Analyzers
SSA3000X-R
The SIGLENT SSA3000X-R real-time spectrum analyzers are powerful and flexible tools for complex RF signal monitor and analysis. With a capability of 40 MHz analysis bandwidth and 7.2 µs 100% POI, the analyzer can provide multi-dimensions data displays, advanced triggering, and RF data capturing, to solve modern RF spectrum challenges, like hopping frequency, conflict channel, spectrum interference, etc. They also provide standard tracking generator for network analysis, optional wideband digital modulation analysis, and EMI pre-compliance test. Applications include broadcast monitoring/evaluation, cellular site, IoT, WiFi, Bluetooth surveying, research and development, education, production, and maintenance.
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Coaxial Programmable Attenuators
Coaxial attenuators are constructed with passivated stainless steel for durable use in both engineering labs and production line environments. These coaxial attenuators are designed and manufactured for low VSWR, low insertion loss and high attenuation value accuracy. The standard offering covers the frequency range of DC to 110 GHz and includes various interface options from 2.4 mm to 1 mm connector types as well as both male and female interfaces. The power handling of standard models is 0.5 to 1 watt continuous wave (CW). Higher power handling levels and different attenuation values and connector types from those listed below can also be requested.
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Microwave Testing
50
The MODEL 50 PICOPROBE® sets new standards in microwave probing performance. Benefiting from coaxial techniques, which have inherent low loss and low dispersion characteristics, the Model 50 Picoprobe®, with or without the bias T option, achieves an insertion loss of less than 0.8 db (typical) and a return loss of greater than 15 db (max.) over its frequency range.
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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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Antenna, Biconical
EM-6917B-1 | 30 MHz To 3 GHz
The EM-6917B-1, a hybrid combination of the industry standard biconical and log periodic antennas, delivers an unmatched combination of frequency coverage and high power handling capability. Featuring exceptionally broad frequency coverage of 26 MHz to 3 GHz, the EM-6917B-1 eliminates the need for adjustments or switching antennas in most test applications up to 3 GHz, and it does so without compromising power handling capability for transmit applications.
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Probe Antennas
Probe antennas are offered as both standard and custom models with a rectangular waveguide interface. Probe antennas can only support linear polarization. These antennas are often used to measure the gain of other antennas by comparing the signal levels of the probe antenna and antenna under testing. The standard models operate across the full waveguide band and offer 6.5 dB nominal gain and 115 and 60 degrees half power beamwidth at center frequency. The below standard offering covers the frequency range of 8.2 to 170 GHz.
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Ultra Miniature Rotating Optical Chopper
360C
A small compact low cost system suitable for OEM use. 10 Hz - 14,000 Hz standard chopping frequency range.
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Microwave Testing
500B
The Model 500B Picoprobe sets new® standards in microwave probing performance. Benefiting from coaxial techniques, which have inherent low loss and low dispersion characteristics, the Model 500B Picoprobe achieves an insertion loss of less than 4.0 db and a return loss of greater than 15 db over its frequency range (see accompanying data).
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Comb Generator, 10 MHz to 26.5 GHz
U9391C
The Keysight Technologies, Inc. U9391C comb generators were developed to provide precision phase calibration, for non-linear measurements using the PNA-X nonlinear vector network analyser (NVNA), referenced to the National Institute of Standards and Technology (NIST) standard. Additionally, the comb generators can be used to calibrate PNA and PNA-X network analyzers for phase and delay measurements of frequency converters without requiring reference or calibration mixers.
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Power Quality Analyzer
PQM-703
Power quality analyzer PQM- 703 is a technically advanced product that allows for comprehensive measurements of the quality of electricity , analysis and recording of power network parameters, for frequencies 50/60 Hz in accordance with European standard EN 50160. PQM -703 is another representative of a well, known family of analyzers line PQM- 70x . In relation to the PQM -702 has new functions like recording of transients with max. sampling frequency 10 MHz (rapid changes in voltage) and control signals. Minimal transient capturing time is 650 ns. It is intended for a very wide range of users who need to control the quality of power with a mobile device , which fulfills the requirements of a multi-sheet standard IEC 61000 for class A analyzers. This applies to measurement accuracy, measurement methods, and synchronization of time with a standard signal. The last condition is met with a built-in GPS module with an internal antenna. If the analyzer is installed inside, it is possible to use an additional antenna with a 10m-long wire. If the antenna is situated outside, GPS signal will be attainable without any problems and used for the synchronization of an internal clock.
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Standard 6.20 (175.20) - 8.00 (226.80) High Frequency Probe
CSP-40A-015
Bandwidth @ -1dB (GHz): 6.00Return Loss @ -20dB (GHz): 2.30Nominal Impedance (Ohms): 50Dielectric VTE Rating (k VAC): 1Test Center (mil): 250Test Center (mm): 6.35Full Travel (mil): 200Full Travel (mm): 5.08Recommended Travel (mil): 133Recommended Travel Remark: Shield: 211 (5.36) including travel of probesOverall Length (mil): 1,231Overall Length (mm): 31.28Full Travel Remark: Shield: 275 (6.99) including travel of probes
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Hydrophone
RESON TC 4035
The TC4035 is a miniature probe hydrophone specifi cally designed as a standard reference hydrophone for sound measurements in the frequency range 100 to 500kHz. The hydrophone incorporates a 10dB low-noise preamplifier, which includes an insert calibration circuit for convenient electrical testing of the hydrophone condition. The pre-amp has a drive capability for cable length up to 25 meters.
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Three Phase AC Voltage Source
EAC-TAVS
Electronic Test & Power Systems
The EAC-TAVS is a series of programmable high power AC voltage sources. Each system provides a three phase true sinewave output as standard. Each unit is built in a freestanding cabinet. The output frequency is adjustable in the range of 45 - 105Hz. Different frequency ranges are optional, with up to 805Hz possible. An RS-232 and CAN interface are provided as standard. The high resolution TFT front panel displays a host of measurement and setting functions. Besides standard models, other nominal power levels and voltages can be user specified. Single phase and bidirectional versions are available on request.
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Dual Channel Digital Receiver
MS 1740
Dual Channel Digital Receiver is a complete high−frequency dual−channel A/D converter capable of sampling rates up to 210 MHz. It accepts two front panel analog inputs and delivers digital output samples over four FPDP (Front Panel Data Port) connectors utilizing FPDP standards. The Dual Channel Digital Receiver features two 12−bit Analog Devices AD9430 A/D Converters, and two user−configurable Xilinx® Virtex−IV Series FPGAs. It also features a VME A64/D64 slave interface for setting up operating modes and selectable A/D range, and optionally provides 32−bit access from the VMEbus to the FPGAs. It is an ideal system as a high−speed data acquisition front end for real time recording and digital signal processing systems.
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Antenna Test Chambers
Special design for low PIM antenna measurements Shielding > 90 dB Frequency Range 700/1000 MHz to 6000 MHz Residual PIM < -165 dBc (@ 2 x 43 dBm) Up to 6 antenna ports for multi-band and MIMO antennas Standard models for antennas up to 2.7 m length Customized solutions available on request
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Multifunction Electrical Installations Meter
MPI-520S
The MPI-520S multifunction meter is dedicated to perform diagnosis of electrical installation according to IEC 61557 standards. Digital meter MPI-520S is designed to measure impedance of a short cicuit loop also without triggering RCD, parameters of RCD, insulation resistance, earthing resistance, continuity and also for phase sequence testing. Furthermore to measure and logging of AC voltage and current, frequency and power.
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H-Field Rod Antenna
The A.H. Systems' set of H-Field Rods provide an accurate standard for magnetic field testing. The rods are available individually or in a set of four to cover the frequency range of 100 Hz to 30 MHz.
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Ultra Low Noise Disciplined Frequency 4220a Standard with Rubidium and OCXO Clean-Up Oscillator
Precise Time and Frequency, Inc.
The ptf 4220A is an Ultra Low Noise Disciplined Frequency Standard with rubidium and OCXO clean-up oscillator.The instrument contains a high performance rubidium module, with an extended life design, and very low aging rate, with high quality OCXO o/p for low phase noise.
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2-Port 20 GHz Analyzer, Frequency Extension Compatible
C4220
C4220 Vector Network Analyzer delivers industry-leading dynamic range and sweep speed, with all the features engineers have come to expect included standard in our software. This VNA is frequency extender compatible and is the anchor network analyzer for the CobaltFx frequency extender system.
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Scalar Feed Horn Antennas
Scalar feed horns are offered as both standard and custom build models with either a circular or rectangular waveguide interface. While scalar feed horns with a rectangular waveguide interface can only support linear polarization, models with a circular waveguide interface can support various polarization types including horizontal, vertical, left-handed circular, and right-handed circular polarization for broader applications. The standard models operate across the full waveguide band and offer 17 dBi nominal gain, 25 degrees half power beamwidth and a -28 dB side lobe level at center frequency. The below standard offering covers the frequency range of 8.5 to 140 GHz. However, other frequencies or gain values are also available.
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Signal Processor Board
MS 1532
- Frequency coverage from 5 kHz to 30 MHz in 1-Hz steps- High dynamic range: +30 dBm 3rd-order intercept typical- Digital filtering provides 58 IFBWs from 56 Hz to 8.0 kHz with exceptional shape factors- AM, Synchronous AM, FM, CW, USB, LSB & ISB detection modes standard- Tunable notch filter- Fast, flexible scanning with 100 memory channels- Large readable LED displays & user-friendly controls- Noise blanking & pass band tuning- Internal switchable preamplifier & attenuator- Operator-selectable RS-232, RS-485, or- RS-422 remote control- Viretx 5 FPGA based design (Two virtex for image processing)- LPC2468 ARM 7 Processor based design- MIL1553B and RS485 Interface- Two High speed 14 bit ADC (125MSPS) for I & Q Sampling- Direct sampling 2-30MHz- Audio CODEC- Conduction Cooled Board
