Pre-amplifiers
Detect and strengthen a signal prior to greater amplification.
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Product
Pre-Amplifiers
MPR, MDA series
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MPR, MDR series provides low noise, high gain and wideband to improve dynamic range for emission testing. We also offer customized model for variable requirments.. Example 30M-1000MHz with band-pass filter Amprifier unit for connecting antenna directly
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External Pre-amplifiers
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Although all Spectrum A/D cards have a very powerful input section with a highly configurable input amplifier and a variety of input ranges it is sometimes necessary to have additional external amplifiers if the signal to acquire has an extremely low level. Spectrum offers a range of perfectly matching external amplifiers to cover such cases. These powerful amplifiers have been rated using the Spectrum cards and offer best performance together with high amplification rates.The amplifiers are simply connected between the signal source and the Spectrum A/D card input and can be manually switched between different settings using small lever keys. All amplifiers allow the offset compensation by using an adjustable screw.
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Product
Microphone Preamplifier
HT426E01
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Nominal Microphone Diameter1/2Frequency Response Electrical Noise(at 22 C) (Flat 20 Hz to 20 kHz)Distortion (3 V rms input at 1 kHz)<-70 dB<-70 dB[1] EnvironmentalTemperature Range (Operating)-40 to +248 FExcitation Voltage 20 to 32 Constant Current Excitation 2 to 10 mA
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Product
PXIe-5668, Up to 26.5 GHz PXI Vector Signal Analyzer
783156-03
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Up to 26.5 GHz PXI Vector Signal Analyzer - The PXIe‑5668 offers wide bandwidth with high-performance measurement performance and speed. It meets the challenging requirements of applications such as wireless communications, radio frequency integrated circuit characterization, RADAR test, and spectrum monitoring and signal intelligence. With its implementation as a PXI instrument, the PXIe‑5668 also features the fast measurement speed required for high-volume manufacturing test, and multi-instrument synchronization capabilities for phase-coherent MIMO test. You can use the optionally included PXIe-5698 preamplifier to improve dynamic range and sensitivity near the instrument noise floor.
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Product
FieldFox Handheld Microwave Signal Analyzer, 32 GHz
N9960B
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A lightweight, durable, software-enabled, microwave signal analyzer, interference analyzer, distance-tracking generator, preamplifier, power meter, and more.
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Product
Preamplifier, 100 MHz to 18 GHz
87405C
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Exceptional gain (25 dB) and flatness (1.5 dB) combined with a probe-power bias connection which eliminates the need for an additional DC power supply, makes these preamplifiers the ideal choice for spectrum analyzer or stand alone applications.
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Hydrophone
TC4047
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The TC4047 miniature hydrophone offers a useable frequency range from 1kHz to 170kHz. The hydrophone incorporates a high quality 20dB low-noise pre-amplifi er which provides optimal conditions for signal transmission. The high sensitivity provides excellent signal to noise ratio and immunity against induced cable noise. The hydrophone is omnidirectional up-to 100kHz and has uniform receiving characteristic from 1kHz to 100kHz. An insert calibration circuit enables remote testing of the hydrophone condition. The hydrophone comes with a SEACON connector. The sensor element is permanently encapsulated in Special formulated NBR to ensure long term reliability. The rubber has been specially compounded to ensure acoustic impedance close to that of water. The strainrelief and outer jacket of the cable is made of high density polyurethane. TC4047 can be used in sea or fresh water.
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Product
Low Noise Prepolarized Microphone
378A04
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The 378A04 is a matched system that is comprised of a high sensitivity microphone and a low noise preamplifier that contains a built-in filter that enables the free-field response to remain flat over a wide frequency range. The system requires a minimum of 4 mA and measures to 6.5 dBA (5.5 dBA typical) within a cost efficient, prepolarized (0V) design. PCB's model 378A04, the industry's first prepolarized low noise microphone and preamplifier system allows you to measure extremely low amplitudes. In the past this was only possible with externally polarized solutions. With a typical noise floor of 5.5dBA, this microphone system delivers all of the benefits commonly associated with prepolarized systems.
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Product
RX Pre-Amplifier System
RAM-34
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The RAM-34 is a complete pre-amplifier system designed primarily for the low bands 160M thru 40M. It has inputs for four receive antennas and internal 3-pole bandpass filters for 160M, 80M and 40M. In addition to the pre-amplifier, it has a step attenuator that togetherwith the amplifier stage provides gains from -20 dB to +20 dB in 5 dB steps. This allows equalizing the signal levels between the antenna inputs. Gain settings are memorized for each antenna on each band. Different types of receive antennas have different signal levels and the gain memories eliminate the need to adjust the receiver or pre-amplifier when switching between the antennas.
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Power Probes
RkP-400 Series
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The RkP-400 Series probes consist of a compact head containing the detector and a preamplifier housed in a separate enclosure. The external dimensions of all the 400 Series Probes are the same, with identical detector planes, allowing for easy interchange of probes in an experiment. The heads have both ¼-20 and M6 tapped holes, a built-in 1” (25mm) filter holder, and a side-mounted BNC connector. Probe specific data, including spectral response curves and calibration dates, is stored in the preamplifier for access by the instruments.
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Product
Hydrophone
RESON TC 4032
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The TC4032 general purpose hydrophone offers a high sensitivity, low noise and a flat frequency response over a wide frequency range. The high sensitivity and acoustic characteristics makes TC4032 capable of producing absolute sound measurements and detecting even very weak signals at levels below “Sea State 0”. The TC4032 incorporates an electrostatically shielded highly sensitive piezoelectric element connected to an integral low-noise 10dB preamplifier. The TC4032 preamplifier is capable of driving long cables of more than 1.000 meters, and the preamplifier features an insert calibration facility.
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Multiplexed Amplifier-per-Channel Function Card
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Multiplexed amplifier-per-channel systems have a dedicated pre-amplifier for every channel and a single Analog to Digital Converter, ADC, for the system. Amplified and filtered analog signals are multiplexed to a post-amplifier and then presented to the ADC to be digitized. Significant benefits of the multiplexed amplifier-per-channel system are: Higher Throughput Rates, Improved Filtering, Higher Per Channel Sampling Rate, Sensor Isolation, Improved Channel-To-Channel Isolation
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Accelerometer (Charge Output Type)
NP-2000 Series
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This sensor converts mechanical vibrations into electric signals in proportion of vibration acceleration.You can choose the one that is ideal for your purpose,conditions,applications etc. from wide variety of selection.Charge amplifier is necessary because it is a charge output type,however, compared to pre-amplifier built-in type, it can be used at higher temperature in general.
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Product
Current Sensors
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Our current sensors were designed for a simple, customer-specific construction of niobium wire wound magnetometers, gradiometers or preamplifiers for small current or voltage signals.
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Product
Current Preamplifier
1212
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The Model 1212 Current Preamplifier is designed as a low cost, gerenal purpose, benchtop instrument to provide a high performance detection system for small ac and dc currents. The 1212 operates with a virtual ground at its input which mitigates unpredictable high frequency rolloff due to input cables and stray capacitance.
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Product
PXIe-5668, Up to 26.5 GHz PXI Vector Signal Analyzer
783156-01
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Up to 26.5 GHz PXI Vector Signal Analyzer - The PXIe‑5668 offers wide bandwidth with high-performance measurement performance and speed. It meets the challenging requirements of applications such as wireless communications, radio frequency integrated circuit characterization, RADAR test, and spectrum monitoring and signal intelligence. With its implementation as a PXI instrument, the PXIe‑5668 also features the fast measurement speed required for high-volume manufacturing test, and multi-instrument synchronization capabilities for phase-coherent MIMO test. You can use the optionally included PXIe-5698 preamplifier to improve dynamic range and sensitivity near the instrument noise floor.
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Product
Acoustic Emission Preamplifier
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The Acoustic Emission Preamplifier is a instrument designed specifically for use with acoustic emission sensors, which is used to boost the signals and filter out any noise or interference. With its advanced technical features and robust design, the QingCheng Acoustic Emission Preamplifier is the perfect choice for professionals seeking a high-performance acoustic testing solution.
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Product
C-Band DWDM Pre-Amplifier EDFA (WPA-C)
HWA4300 (With SNMP)
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Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai HWA4300 series, is designed for C-Band 44 waves or 88 waves DWDM system design Pre-Amplifier gain flatness. Products using the most excellent optical performance, the most advanced electronic control technology and comprehensive software features, has a wide operating wavelength range, Low noise, excellent gain flatness characteristics and transient characteristics.
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Product
Signal Conditioning
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Various preamplifiers and signal converters extend the range of applications for Elsys data acquisition systems.
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Product
Externally Polarized Precision Condenser Microphones & Preamplifiers
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Externally polarized microphones set the initial standard for all acoustic test and measurement applications. They rely on a dedicated 200V power supply and specialized cables with 7-pin LEMO® connectors. Their straightforward design supports a wide product range. Often chosen as replacements for existing models or when prepolarized alternatives are unavailable.
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Product
(70×90×15mm) Full Function Single Channel MSA Compact Pre-Amplifier EDFA Module
SPA4300-FM02
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Hangzhou Huatai Optic Tech. Co., Ltd.
SPA4300-FM02 is a full-function optical Pre-Amplifier with digital control electronics, adopts 70×90×15mm MSA compact package. It is featured with high reliability, superior optical performance and compact reasonable configuration by Industrial standard, creating the most flexible and variable low-cost amplifier in the market. This module is suitable for multiple network application, especially the application that requires 40GB/S transmission speed.
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Microphone Preamplifier
426B31
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Performance:Nominal Microphone Diameter:1/4" Frequency Response:3.98 to 126000 Hz3.98 to 126000 10.0 to 126000 Hz10.0 to 126000 HzElectrical Noise (A-weight)3.8 TEDS CompliantYes
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Product
Photometer
DSP 10
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Instrument Systems Optische Messtechnik GmbH
The preamplifier of the DSP 10 photometer was specially developed for fast “on-the-fly” measurements with the AMS and LGS series of goniophotometers from Instrument Systems. Spatial light distribution can be measured in a fraction of the time needed with conventional systems.
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Microphones
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All these measurement microphones have a XLR connector and require a phantom power. They can be connected to specially equipped soundcards or pre-amplifiers, only.
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Product
X-Ray And Gamma Detector Systems
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The XR-100CR is a new high performance x-ray detector, preamplifier, and cooler system using a thermoelectrically cooled Si-PIN photodiode as an xray detector. Also mounted on the 2-stage cooler are the input FET and a novel feedback circuit. These components are kept at approximately -55 °C, and are monitored by an internal temperature sensor. The hermetic TO-8 package of the detector has a light tight, vacuum tight thin Beryllium window to enable soft xray detection. The XR-100T-CdTe represents a breakthrough in xray detector technology by providing “off-the-shelf” performance previously available only from expensive cryogenically cooled systems. The XR-100-CdTe is also suited for measuring gamma rays.
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Preamplifiers
LNA Series
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Low noise amplifier with 12.5 dB of gain covering the nominal frequency range 1 MHz to 3 GHz and can be used in the range from 200 kHz to 4 GHz. With its high gain and low noise figure, it will significantly increase the sensitivity of virtually all spectrum analyzers and other RF measuring instruments. All measuring instruments have a 'noise figure', which is a measure of how good the instrument is at measuring low level signals, the lower this figure, the better, although the lowest signal level will still be governed by the measurement bandwidth. A typical spectrum analyzer may have a noise figure of 20 dB or more, whereas a typical receiver may have a noise figure of 10 dB. The preamplifier has a noise figure of typically 4 dB, significantly enhancing the low level performance of such instruments, enabling signals that were previously masked by noise to be seen.
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Transformer Preamplifier
SR554
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Stanford Research Systems, Inc.
The SR554 is a low-noise, transformer-coupled preamplifier optimized for source impedances between 0.05 Ω and 1 kΩ. With an input noise of only 0.1 nV/√Hz, the SR554 can be used in a wide range of low-noise applications.
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Product
FieldFox Handheld Microwave Signal Analyzer, 44 GHz
N9961B
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A lightweight, durable, software-enabled, microwave signal analyzer, interference analyzer, distance-tracking generator, preamplifier, power meter, and more.
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Product
Scanner Probe
RFS set
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The RFS set consits of three passive near field probes designed for the use in a measurement scanner during the development of E-field and magnetic field. They are designed for frequency ranges of 30 MHz to 3 GHz. The probe heads of the RFS set allow for close measurements needed to correctly localize interference sources on an electronic assembly. They document the whole image of the device under test`s near field. The scanner probes have a sheath current attenuation and are electrically shielded. They are connected to a spectrum analyzer or an oscilloscope with a 50 Ω input. They do not have an internal terminating resistance. The measuring signal can be increased with PA 203 or PA 303 preamplifier. On request RFS, LFS and XFS scanner probes can be produced.
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Amplifier Module
LNAM-LPA
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We offer an evaluation board and case for the LNAM-B and LNAM-FBX modules. This Laboratory PreAmplifier (LPA) solution is powered by a switch-mode power supply and gives access to the LNAM in- and outputs via BNC sockets.
