Noise
a signal's fluctuation other than that desired.
See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH
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(125×150×20mm) C-Band DWDM Line EDFA Module
WLA4200-FM05
Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai WLA4200-FM05 series is a gain flatness line EDFA Module which is specifically designed for C-Band 44 channels optic transmission system. It adopts the most excellent optical performance, the most advanced electronic control technology and the most complete software functionalities; it is featured with wide working wavelength range, low noise and excellent gain flatness. WLA4200-FM05 is mainly installed in middle of transmission line, replacing the traditional relay, to compensate the optical power loss in the line and extend the optical signal transmission distance
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Frequency Dividers
Holzworth Instrumentation, Inc.
The HX4210 was designed as a reference output translator for Holzworth's early RF Synthesizer designs. The key design requirement was to maintain the low phase noise /jitter characteristics the 100MHz calibrated reference output signal so that it could be utilized as a 10MHz laboratory reference standard.
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Speed Sensors
DHE (Differential Hall Effect) sensors give an output when subjected to a changing magnetic field. The field is set up by a magnet inside the sensor body and changes when ferromagnetic teeth are passed beneath the sensor (no magnets are required in the target). To improve noise resistance, the sensor has two Hall effect elements and only responds to changes in magnetic field strength corresponding to tooth passing frequencies above 15Hz. As each tooth passes the sensor, the digital state of the output changes.
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Rubidium Oscillator
IQRB-2
The IQRB-2 low noise rubidium oscillator is a sub-miniature atomic oscillator combined with 'active noise filter' technology. This rubidium oscillator has 100 times less drift than OCXOs and with short term stability of 0.002ppb/s at 100s this rubidium oscillator provides significant improvements in performance over other rubidium components.
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Ethernet/LXI digitizerNETBOX 16 Bit High Speed Digitizer - 250 MS/s on 4 Channels, 4 Single-Ended Inputs
DN2.442-04
The digitizerNETBOX DN2.44x series allows recording of one, two, four or eight synchronous channels with sampling rates of 130 MS/s up to 500 MS/s. These products offer outstanding A/D features in resolution, bandwidth and speed as a remote instrument. The powerful A/D amplifier section offers six different input ranges, two input paths, AC/DC coupling and noise reduction filters.
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Hybrid Raman/Er-doped Fiber Amplifier
HFA5000
Hangzhou Huatai Optic Tech. Co., Ltd.
1. Erbium-doped Fiber Amplifier, due to multiple cascades and the accumulation of noise caused by spontaneous emission, will reduce the system CNR greatly and thus it will limit the transmission capacity and distance of the system. Raman Fiber Amplifier (RFA) is a newly designed fiber amplifier based on Stimulated Raman Scattering (SRS) effect. It is considered as the core technology of new generation DWDM fiber over-long communication. Compared with Erbium-Doped Fiber Amplifier, Raman amplifier has the advantage of low Noise Figure (NF), wider gain bandwidth, flexible gain spectral region and stable temperature. It is the only device that can operate in 1300~1600nm.
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8-Channel, 10 MHz Precision ReferenceWith Sine and Logic Outputs
ITS-6200
The ITS-6200 is a versatile 10 MHz laboratory frequency reference useful for synchronizing test instruments to a common standard. Eight outputs are provided, each which can be configured independently as sinewave or logic level square-wave signals. Additionally, CMOS logic levels can be set for 5V, 3.3V, or 2.5V logic family compatibility. A 10 MHz reference input is provided to phase lock the ITS-6200 to an external reference, such as a GPS or Rubidium standard, or cascade multiple ITS-6200 units for additional outputs. The low phase noise and high stability OCXO within the ITS-6200 is suitable for the most demanding applications, whether free-running or phase locked. The compact size and low power consumption makes the instrument highly portable and suitable for AC-powered operation in the lab or battery operation in mobile or field applications.
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High Voltage Linear Power Supplies Bipolar 4-quadrant, Analog/Digital/Local Control, Ultra Low Ripple/Noise
Series BOP-HV
The Kepco Model BOP 500DM and BOP 1000DM are high voltage power sources, up to 500V or 1000V, respectively. These combine the capabilities of fast programmable power supplies with a Class A output stage, which can respond bidirectionally from zero. The BOP-HV can be operated in either a "voltage stabilizing" or "current stabilizing" operating mode (selectable by a front panel switch). These power supplies offer ultra low noise and ultra low ripple at the output and are MIL-STD-461 compliant.
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PXI Dual 8 to 1 RF Multiplexer 3GHz 50 Ohm SMB
40-874-002
The 40-874-002 is a 50 Ohm 8 to 1 RF multiplexer with 2 banks in a single PXI slot. It has low insertion loss and VSWR through the use of modern RF relay technology at an affordable cost. Each MUX has been carefully designed to ensure excellent and repeatable RF characteristics to frequencies of 3GHz with each path having a nominally equal insertion loss. The injection of noise and unwanted signals into the signal paths of this RF multiplexer has been minimized by careful attention to the mechanical and electrical design.
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Ethernet/LXI digitizerNETBOX 14 Bit High Speed Digitizer - 400 MS/s on 16 Channels, 16 Single-Ended Inputs
DN6.448-16
The digitizerNETBOX DN6.44x series allows recording of up to 24 synchronous channels with sampling rates of 130 MS/s up to 500 MS/s. These products offer outstanding A/D features in resolution, bandwidth and speed as a remote instrument. The powerful A/D amplifier section offers six different input ranges, two input paths, AC/DC coupling and noise reduction filters.
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High and Low Temperature Humidity Chamber
GDJS/GDJW
•The chamber is produced by SUS304 Steel, the temperature keeping material is produced by Polyurethane hard foam and ultra-fine fibre glass, the doorframe heat insulated by Double high temperature aging silicone rubber door sealing strip. •The temperature controller is used by Korean TEMI display in English/Chinese and German Siemens PLC, it can be communicated to PC via RS-232. The temperature accuracy is 0.1℃ and humidity is 0.1%R.H •The temperature sensor is platinum PT100 Ohms/MV resistor •The heating system is full separately system which produced by Nickel chromium alloy electric heating type heater •The cold system is applied by fully enclosed fan cooled single-stage and cascade refrigeration mode, the compressor is from France TECUMSEH brand which can allow you get after sales support from many countries •The cyclical system is applied by High temperature low noise air conditioning type motor and Multi blade centrifugal wind wheel •The safety self-protection function include Electric leakage, short circuit, over temperature, motor overheating, compressor pressure, overload, over-current protection •Working Power: AC380V±10% 3phases and frequency 50Hz/60Hz •Working Environmental: Temperature is 5℃～+30℃ Humidity ≤85%R.H
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NI-9262, 1 MS/s/ch Simultaneous, ±10 V, 6-Channel C Series Voltage Output Module
785503-02
1 MS/s/ch Simultaneous, ±10 V, 6-Channel C Series Voltage Output Module - The NI-9262 is a simultaneously updating analog output module. It features overvoltage protection, short-circuit protection, low crosstalk, fast slew rate, high relative accuracy, and NIST-traceable calibration. The NI-9262 module includes a channel-to-earth ground isolation barrier for safety and noise immunity.
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Digital Sound Level Meter
KG-70
Backlight LCD helps easy reading in dark place.MAX/MIN measurement.Wind Screen supplied to cut off wind noise affects.Frequency weighting (A/C) selectable.Time weighting (FAST/SLOW) selectable.Display Hold, and Auto Power Off
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PXI Dual 8 to 1 RF MUX MCX 75 Ohm
40-834-102
The 40-834-102 is a 75 Ohm 8 to 1 RF MUX with 2 banks in a single PXI slot. It has been designed to exhibit low insertion loss and VSWR through the use of modern RF relay technology at an affordable cost. Each MUX has been carefully designed to ensure excellent and repeatable RF characteristics to frequencies of 3GHz with each path having a nominally equal insertion loss. The design of the 40-834 minimizes the injection of noise and unwanted signals into the signal path by careful attention to the mechanical and electrical design.
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Realtime Analyzer ENA
RAE
Advanced sound recorder/analyzer with the latest environmental noise measurement technology. Used for a wide scope of application in sound system engineering.
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Low Phase Noise Amplifier
RF Lambda’s lower phase noise amplifier offerings include special power supply conditioning and utilize technology to reduce the phase noise addition from amplifying the signal. Hermetically sealed options are available upon request.
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Shielded Rooms
HIGHVOLT Prüftechnik Dresden GmbH
Electromagetic field and line-conducted interference needs to be eliminated in order to measure low-intensity partial discharges with a PD background noise level (≤ 1 pC) in accordance with IEC 60270.
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Planar Doped Barrier Detectors
KRYTAR Planar Doped Barrier Detectors are specifically designed for use in today's high-performance microwave instrumentation and systems. KRYTAR detectors are designed for such applications as power measurements, analyzing radar performance, leveling pulsed signal sources, AM noise measurements, system monitoring and pulsed RF measurements in ultra-broadband and mm-Wave applications.
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IQ Demodulator
IQD Series
*Capable of receiving RF and LO frequency inputs *Output from DC to 500 MHz *Internal low noise oscillator Internal reference *Buffered demodulator *Balanced IQ *Optimized for low EVm *Optional internal Reference Detect Switch (EM Research RDS Series) *Up to 250 mega-symbols per second
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Analog Power Supply
Type NPS-2412
National RF's Type NPS-2412 analog power supply was designed to be used in communication equipment where radiated switching inverter noise from conventional “switching type” supplies is not acceptable. The power supply consists of a standard rectified transformer output driving a pair of voltage regulators and filtering networks. The 2412 offers an adjustable voltage output between 2 and 24 volts as well as a fixed voltage output of 12 volts. A maximum of 20 Watts of DC power can be supplied from the unit. As the voltage regulators dissipate power in the regulation process, the power to the load is derated accordingly, dependent on the set voltage to the load. The adjustable regulator is a standard LM-317T integrated circuit device. The fixed regulator is a standard LM 7812 device. Upon customer request, the LM 7812 device may be changed to any voltage rating within the the LM-78xx series of regulators. Contact National RF for this modification if desired.
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Hyperspectral Imaging Spectrometer
Hyperspectral PoliSpectra® H116
HORIBA has developed a unique hyperspectral imaging spectrometer with an integrated scientific CMOS camera (12-16 bit) featuring HDR (95dB Dynamic Range and 1.7e- noise) and 95% Q.E peak efficiency:PoliSpectra® H116 features broad UV-NIR coverage in one acquisition (185-1050 nm) combined with the highest spectral resolution (<1 nm).
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Optical Probes - Low Bandwidth
P6701B/P6703B
Depend on Tektronix to provide you with performance you can count on, and industry-leading service and support.- Broad Wavelength Response 500 to 950 nm or 1100 to 1700 nm- High-bandwidth DC up to 1.2 GHz- High Gain 1 V/mW- Low Noise <11 pW/√Hz- Probe Connects to DPO7000*1 and DPO/DSA/MSO70000*2Series- SONET/SDH and Fibre Channel Reference Receiver Performance
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Frequency Reference
Quartzlock time and frequency standards offer a complete range of cost effective and low noise in both atomic controlled (rubidium oscillator) and GPS controlled (off-air) time and frequency reference, calibrators and standards. These acurate time and frequency references are used in telecoms, aviation, nautical and precision test and measurement enviroments.
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Power Supplies
CT-450
The CT series has a dual smart fan system that provides the fastest cooling system while maintaining a low noise level. The fans are installed in the front and rear of the power supply for maximum cooling efficiency. The CT series have all the necessary connectors to power all your devices and components. And it is PCI-E ready.
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Thermopile Detectors and Sensors
Our Thermopile Detectors are typically Thermopiles with integrated Thermistor providing analog output in various packages. Special designs include built-in lenses or reflectors to enhance sensing performance, Isothermal constructions, or Dual narrow-band windows. Our latest Thermopile Sensors include specially designed electronic circuitry to provide calibration, digital output, and functionality. With the DigiPile, Excelitas offers a unique design for measurement applications. With its digital output, this device does not require any low noise amplification. The CaliPile family provides integrated features that enable measurement, as well as presence detection applications.
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Tunable Non-Reflective Band-Reject Filter (700MHz-1GHz)
SPCL-00597
This device is placed after the DUT to protect the Spectrum Analyzer from high-power fundamentals and provide harmonic measurements. The non-reflective functionality prevents energy from bouncing back to the DUT and raising the noise floor level.Broadband matching improves dynamic range and reducesmeasurement uncertainty.
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Special / Customer Spec. Crates
6U VME64x 4500
The WIENER VME 4500 crate series is a compact new generation of 19" integrated packaging system with frontal cooling air intake for standard VME64x bus systems with 6Ux160mm cards. Designed primarily for applications in data acquisition, control and test instrumentation it combines superior mechanical quality with lowest noise power supply technology.
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Supply Adapters
AP Series
*Overflow Relative Noise Temperature and Return Loss Measurement within all Frequency Range*Ultrawide Frequency Range*Small Size*4 Design Structures with Different Connector Types
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PXIe-5841, 6 GHz, 1 GHz Bandwidth, RF PXI Vector Signal Transceiver
786982-01
6 GHz, 1 GHz Bandwidth, RF PXI Vector Signal Transceiver - The PXIe-5841 is a vector signal transceiver (VST) with 1 GHz of instantaneous bandwidth. It combines vector signal generator, vector signal analyzer and high-speed serial interface capabilities with FPGA-based real-time signal processing and control. The PXIe-5841 features the flexibility of a software defined radio architecture with RF instrument class performance. This VST delivers the fast measurement speed and small form factor of a production test box with the flexibility and high performance of R&D-grade box instruments. The PXIe-5841 is available with an optional high-performance local oscillator module for improved phase noise, measurement time, and EVM performance. You can use the VST to test a variety of cellular and wireless standards such as Wi-Fi 6 and 5G NR. In addition, you can expand the small, two slot 2U PXI Express form factor to support multiple input, multiple output (MIMO) configurations.
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Hi-Q Laser RIN Analyzer
OE4001
The OEwaves’ HI-Q® OE4001 Optical Test Measurement System (TMS) offers a fully automated measurement of ultra-low RIN (Relative Intensity Noise) CW laser sources.
