Noise
a signal's fluctuation other than that desired.
See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH
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Audio Analyzer / Studio Aid
MiniSonic MS10
The MiniSonic MS1/MS10 Audio Analyser/Studio Aid is a complete, hand held, two-channel analogue audio test set that measures frequency, frequency response, phase, level, noise, distortion, crosstalk, speed and path latency (delay).As well as being a quality tester it's a precision line-up tool, a stereo PPM, a balanced-unbalanced convertor (both ways),a stereo mic preamp, a headphone amp, and a level convertor.
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Integrated Board Power Management Functions For The Forward Thinking Engineer
Power Manager II
*Up to 12 differential voltage sensors with immunity to noise on ground plane*Voltage trimming to within 1%*Ruggedized CPLD with up to 48 macrocells for sequencing and supervisory signal logic*Large operating power supply range (3.3 V + 20% to 3.3 V -15%)*Up to 4 High-Voltage MOSFET Driver Outputs*Voltage Measurement with 10-bit ADC through I2C*Up to 8 On-chip DACs for Margining and Trimming
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Fractional-N PLLs
Analog Devices’ leading PLL synthesizer family includes single and dual PLLs, as well as fractional-N and integer-N, and highly integrated PLLs with VCOs. They feature best-in-class performance, phase noise, and integration.
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NI-9269, 100 kS/s/ch Simultaneous, ±10 V, Isolated, 4-Channel C Series Voltage Output Module
781098-02
100 kS/s/ch Simultaneous, ±10 V, Isolated, 4-Channel C Series Voltage Output Module - The NI‑9269 is a channel‑to‑channel isolated analog output module. The NI‑9269 adds channel‑to‑channel isolation for increased safety and improved signal quality. Channel‑to‑channel isolation is commonly needed for applications that have multiple electrical systems, such as automotive tests, or industrial applications that are subjected to increased noise and often contain multiple ground planes.
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High Speed Ethernet DAQ
Ultraview's ethernet based acquisition boards bring low noise, large channel count solutions to common open-source platforms. The flexibility of being able to combine a large number of publicly available firmware/software modules with laboratory quality data acquisition chips makes many previously difficult project integrations possible at a fraction of the cost of developing the entire system.
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Wireless
Headsets
Designed for any intercom application, Trilogy headsets offer:*Heavy duty single or dual muff headset according to personal preferences and ambient noise considerations.*Robust moulded enclosed flexible mic boom to withstand the rigours of broadcast operations.*1.5m steel cable terminated with XLR5 plug for connection to common beltpack units.
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Utilities
Audio signal generator that include sine waves, square waves, white noise, and pink noise. The noise signals may be octave-band limited. In landscape mode, you can set sweep start and stop frequencies, and a time in seconds.
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Programmable Selsyn Indicators
PSI
Computer Conversions Corporation
Computer Conversions Solid State Selsyn/Resolver Indicator digitizes the outputs of Selsyns, Synchros and Resolvers for position indication and control applications. The Selsyn Indicator is designed to replace failure prone mechanical selsyn torque receivers, counters, etc. The tracking converters high noise immunity and high speed tracking characteristics make it ideal for use in industrial envrionments.
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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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Integer-N PLLs
Analog Devices’ leading PLL synthesizer family includes single and dual PLLs, as well as fractional-N and integer-N, and highly integrated PLLs with VCOs. They feature best-in-class performance, phase noise, and integration.
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Sound Level Meters & Decibel Meters
Find high performance easy to use Class 1 or Class 2 sound level meters. Ideal professional-grade noise meters for accurate and compliant noise measurement for every application including occupational noise and environmental noise.
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USB Preamplifier, 10 MHz to 4 GHz
U7227A
The U7227A, 10 MHz to 4 GHz USB preamplifier is designed to bring reliable gain and low noise figure to measurement systems improving the overall system performance and reduce systematic errors; a total solution to the X-Series signal analyzers to perform noise figure measurements.
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AS-Interface Power Supplies and Monitors
*High noise immunity and electromagnetic compatibility*Wide input voltage range*Excellent short-circuit and overload protection*Excellent power reserve*Robust metal housing for secure mounting
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Ethernet/LXI digitizerNETBOX 16 Bit High Speed Digitizer - 250 MS/s on 8 Channels, 8 Single-Ended Inputs
DN2.442-08
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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Low-Pass Filters
Low-Pass Filters from Analog Devices are specifically designed to reject higher frequency noise and unwanted signals while allowing desired signals to pass through. Analog Devices offers an extensive line of continuous time and clock tunable (switched capacitor) devices preconfigured for low-pass filtering. These integrated low pass filters feature a wide range of cutoff frequencies and response characteristics.
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Spectrometer
VIS-NIR
Wavelength range is 420 nm to 1100 nm with 4 nm resolutionHD Volume Phase Holographic GratingBack-thinned Si CCD with low noise electronicsExtreme low stray light and high transmissionShort acquisition time and high SNR spectraTEC cooling option availableBluetooth option availableFiber coupled or free spaceOEM Solution
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CAT-5 Cable Equalizers
Analog Devices high speed, differential receivers and CAT-5 cable equalizers compensate for the transmission losses of UTP and coaxial cables up to 300 meters in length. Our design techniques for products such as the AD8123 optimize performance for low noise, short-to-medium range applications, while also providing the high gain bandwidth required for long cable equalizations. Various gain stages are summed together to best approximate the inverse frequency response of the cable. Logic circuitry controls the gain functions of the individual stages so that the lowest noise can be achieved at short-to-medium cable lengths.
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Selective Level Meter
Model SLM620
- Digital Synthesized Local Oscillator- Two Selective Bandwidths : 20Hz, 3.1KHz- Wideband, Low Noise and Low Distortion Measurements- dB/dBm Operation- High Frequency Stability- Internal Calibration Facility- Recorder Outputs- Frequency Tracking Facility with Level Oscillator SLG620- Storage of Nine Spot Frequencies- Reference Level Set Facility- Autotune Feature- Operates on AC Mains or Internal Rechargeable Battery- Built in charger- Graphic LCD Display with Backlight
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QS603 60V/3A Power Supply
*16 hours at full load*Low ripple and noise*Automatic switching CV / CC*Aluminum heat sink*Displays 3 or 4 digit depending on the model
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PXI Triple SPDT RF Switch MCX 75 Ohm
40-830-103
The 40-830 is a 75 RF Switch available with 3 or 6 separate SPDT relays in a single PXI slot. Both versions have been designed to exhibit low insertion loss and VSWR through the use of modern RF relay technology at an affordable cost. The switch banks have 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 40-830 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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Analog Summing Amplifier
SIM980
Stanford Research Systems, Inc.
The SIM980 Summing Amplifier has four input channels that can be added or subtracted from each other. The output noise is less than 60 nV/√Hz, and crosstalk between channels is less than -80 dB. With a bandwidth of 1 MHz, a slew rate of 40 V/ms, and input offsets that are trimmed to ±100 µV, the SIM980 is extremely useful in many analog applications.
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Voltage Controlled Oscillators
Macom Technology Solutions Holdings Inc.
At MACOM we offer a variety of voltage controlled oscillators (VCOs) that generate frequency in aerospace and defense, point to point, CATV Satcom and other Radio applications. Our surface mount hybrid and MMIC VCOs support a variety of applications operating between the 45MHz to 14.2 GHz frequency range. Featuring low phase noise, stable performance over temperature, low power consumption, and highly linear tuning, MACOM’s VCOs provide leading edge solutions for challenging communications needs.
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Low Noise Amplifier
R&K’s Low Noise Amplifier (LNA) series products are a type of small signal amplifiers but with excellent noise figure. LNA is designed to significantly minimize additional noise to be introduced inside the product, and capable to amplify the input RF signal to the required level with minimal impact from noise on output RF signal.
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AC and DC Current Sources
Programmable AC and DC current sources that provide precise, low noise, stable currents for a number of applications.
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PXI/PXIe RF Switch, Triple SPDT, 3GHz, 75Ω, MCX
40-830A-103
The 40-830A-103 (PXI) and 42-830A-103 (PXIe) are 75Ω RF switches with 3 separate SPDT relays in a single slot. They have been designed to exhibit low insertion loss and VSWR through the use of modern RF relay technology at an affordable cost. The switch banks have 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 40/42-830A 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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Remote Sensor
McLennan Sound Monitoring, Inc
The remote noise sensor assembly consists of a noise sensor mounted in a laser-cut, powder painted, 16-gauge metal chassis. The noise sensor assembly is connected to the main instrument with a four conductor cables and has an “on” indicator LED. Due to the power-balanced low impedance return signal, the remote noise sensor can be placed up to 1000 feet away from the McLennan sound level monitor main instrument without significant change in the signal.
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ICE 3000 Series
ICE3001
This subsystem is an agile filter for the SATCOM frequency band, capable of acting as either a receive or a transmit filter. It enables simultaneous operation of multiple transceivers in extreme cosite environments. The ICE3001 provides multiple poles of RF selectivity to reduce broadband noise, harmonics, and spurious signals for either receive or transmit applications. This filter is a highly integrated design incorporating complete Built-in-Test capability. The design has been qualified for military applications. A dual-mount tray is also available as an option for easy incorporation on your platform. Cost-effective modifications are available on the ICE3001.
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USB Controlled High Precision Audio Test Interface
AudioConnect 4×4
AudioConnect 4×4 is a high accuracy 4-in, 4-out audio interface specifically audio test and measurement. It offers digital and analog audio in and out at any user-specified sampling rate up to 200kHz, and a high signal to noise ratio and wide frequency response, making it suitable for the most demanding measurement applications. Controls are simple – a single USB connection and a power indicator – all other typical soundcard controls that are not used for audio test applications have been eliminated to make operation and calibration simple with no room for error. AudioConnect 4×4 is supplied fully calibrated.
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550W to 2000W - Single Output / Multiple Output
QM Series
*Up to 18 Outputs*Full Medical Isolation (MOPP)*Low Speed, Low Audible Noise Fan*Industry Leading Flexibility*7 year warranty*Suitable for B and BF rated equipment*PMBus™ communication option
