Pre-amplifiers
Detect and strengthen a signal prior to greater amplification.
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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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Product
Instrumentation
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Unholtz-Dickie designs and manufactures a variety of transducer signal conditioners, accelerometers, remote charge preamplifiers, vibration monitors & limiters, transducer testers, buffer amplifiers and other special purpose instrumentation accessories for vibration testing.
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Product
Low Noise Current Preamplifier
SR570
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Stanford Research Systems, Inc.
The SR570 is a low-noise current preamplifier capable of current gains as large as 1 pA/V. High gain and bandwidth, low noise, and many convenient features make the SR570 ideal for a variety of photonic, low temperature and other measurements.
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Product
Pulse energy and power measuring instrument
LEM 2410
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A touch panel and function keys make this device comfortable and easy to handle. The preamplifiers integrated into the device and the choice of sensor sensitivity allow a wide range of sensor heads to be used. The large graphic display offers space for a variety of display and analysis choices. The digital display can be used for determining the energy, frequency and average power.
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Product
Power modules
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G.R.A.S. Sound & Vibration A/S
It provides polarization voltage for the transducer, ensuring that the microphone gets the charging voltage it needs.It provides supply voltage for the microphone preamplifier. The preamplifier acts as a unity gain impedance converter. It provides a certain amount of line drive capability by providing a low output impedance and output current, making it possible to transmit the signal from the transducer to the Power Module without significant degradation.A power module can provide amplification or attenuation to the signal, thus making it possible to fine tune the measurement chain to the signals being measured and the hardware being used.Selectable filters make it possible to exclude unwanted noise from the measurement, e.g. wind induced noise from outdoor measurements.Overload detection makes it possible to validate the measurements and is a useful tool in monitoring setups.When a Power Module with gain is used, you can use longer cables because of the power module's ability to deliver current.A Power module introduces electrical isolation
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Product
Lock-In Voltage Preamplifier
SR550
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Stanford Research Systems, Inc.
The SR550 Voltage Preamplifier is designed to work with any SRS lock-in amplifier. Preamplifiers provide gain close to the experimental detector, before the signal-to-noise ratio is permanently degraded by cable capacitance and pickup
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Product
C-Band Single Channel Pre-Amplifier EDFA (SPA)
HSA4300 (With SNMP)
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Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai HSA4300 series is a low noise pre-EDFA which designed specifically for single wavelength optic transmission system. It is installed in the front of optical receiver, used for improving the receiving sensitivity of the optical receiver, and extending the signal transmission distance.
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Product
Preamplifiers
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Is an electronic amplifier that converts a weak electrical signal into an output signal strong enough to be noise-tolerant and strong enough for further processing, or for sending to a power amplifier and a loudspeaker.
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Product
Microwave Wideband High-power input type PIN Receivers
MR30 (30KHz~100GHz)
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Hangzhou Huatai Optic Tech. Co., Ltd.
MR30 series microwave wideband optical receiver, adopts waveguide intergrated PIN photodetector. Within 40KHz~100GHz bandwidth, they are featured with excellent linearity, high responsibility and superior flatness of the RF response in both, power and phase. They provide an outstanding linearity fiber optical communication for analogue and digital wideband microwave application. MR30 series PIN photodetector products have unsurpassed high-power handing capability. In system application, they can pre-amplify the received optical power by EDFA, favorable responsibility, with high voltage out, avoiding the need for electrical amplification. They are suitable for testing and application in microwave opto-electronics and high speed lightwave area as well as 40Gb/s (OC-768, STM-256) high-speed communication system.
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Product
ELT STALKER Vector-finder
VF-121
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The Vector-Finder Types VF-121 and VF 121A are unique in the Vector-finder series of direction finding antennas. They incorporate a proven design, electro statically shielded loop sensing element with modern solid state low noise analog and digital technology to allow detection and location of aircraft band signals. Both the VF-121 and the VF 121A incorporate a unique digital modulator which allows the user to more easily home-in on unmodulated carriers. Such cases occur at airports when transmitter may be accidentally keyed on during aircraft overnight layovers. The VF-121 is specifically designed to be used on airport premises where signal strengths are high. To compensate for very strong signals, an integral attenuator is also incorporated to allow the user to operate the unit close-in to aircraft. The VF-121A differs in that a high gain, low-noise preamplifier is utilized with the sensing element in order to hunt signals that may be weak or at a distance. The unit is ideally suited for the location of ELT transmitters in the field. Both units are tunable over the 118 MHz to 130 MHz aircraft frequencies and interface directly to the user’s aircraft band receiver or transceiver via the antenna jack. With the antenna system connected to the receiver, the user will hear the desired signal. If the signal is unmodulated, the digital modulator will generate a tone on the carrier. When the handheld unit is rotated about, an audible null on the received signal or the generated tone will be heard. This null aligns with the axis of the equipment case and represents the direction of the received signal. This direction may be read from the black dial compass mounted on the top of the enclosure. As the response is bi-directional, triangulation may be used to determine the true bearing when the true direction is not known.
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Product
Current Preamplifier
1641
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The Model 1641 Current Preamplifier is a simple low cost wideband gain block for use with photomultipliers
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Product
Signal Processor Board
MS 1532
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- 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
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Product
Electronic Instruments
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The ORTEC range of modular electronics includes instruments in NIM formats as well as other modular instruments, such as photomultiplier bases, preamplifiers and other accessories. ORTEC also offers modular instruments for pulse height spectroscopy, fast timing, counting, high voltage power supplies and other special functions.
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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
Hydrophone
TC 4037
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Incorporating a 10dB low-noise preamplifier able to drive a 25-metre cable and a wide usable frequency range, the TC 4037 is a spherical probe hydrophone that’s ideal for measuring sounds in the 100 to 500kHz range.
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Product
350 MHz Preamplifier
SIM914
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Stanford Research Systems, Inc.
The SIM914 350 MHz Preamplifier contains two wide-bandwidth, DC-coupled amplifiers, each with a gain of 5 (14 dB). Its fast rise time, low noise and excellent DC accuracy make it an ideal instrument for amplifying signals like those from photomultiplier tubes and photodiodes.
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Product
Mini Receiver
FB7-NX
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In about 1935, the National Radio Company of Malden, Mass., brought out a “hot” high frequency receiver, called the FB7, and the subsequent FB-7X. It featured a super-hetrodyne design with plug-in coils that gave it a broad frequency range. The “X” model also incorporated a crystal filter in the intermediate frequency section, thus giving it additional selectivity. The receiver was viewed by radio amateurs as a technological breakthrough, and it was also used commercially for point to point high frequency communications. As the receiver did not have an internal RF amplifier section, a separately tunable RF amplifier was later provided in a separate enclosure for additional performance capabilities. Now, National RF, Inc., is resurrecting the fabled receiver name with an all solid-state, hot mini receiver, which also utilizes plug-in coils to cover the HF spectrum. The mini-receiver is designed for use by radio amateurs as well as serious short-wave listeners, and allows reception of AM, CW, and SSB signals. It incorporates a super-hetrodyne design with a dual gate FET built-in RF preamplifier and a ceramic filter for selectivity, often required when used in a crowded amateur radio band. In addition, the receiver has a buffered rear panel output of the high frequency oscillator for use with either a frequency counter for exact receive frequency display, or for interface with an outboard transmitter. A rear panel jack is also provided for muting the receiver when a transmitter is placed into the transmit mode. And, the receiver is small enough to fit into carry-on luggage and taken on trips when it is desired to “keep an ear” on amateur radio or other high frequency activity. The receiver utilizes rear panel plug-in coil assemblies which contain the RF amplifier, mixer, and oscillator tuned circuits. Each plug-in coil assembly also comes with a separate dial scale, which is inserted onto the front panel for displaying the tuned frequency. A very smooth 6 to 1 planetary drive is used for tuning the receiver. Other front panel controls include RF preamplifier peak, volume control, Beat Frequency Oscillator adjustment, and RF gain control. Other switches include filter bandwidth, AM/CW/SSB selection, Power, and a general coverage/band spread control for certain plug-in assemblies. The receiver is intended to drive head-phones via a rear panel jack, but has sufficient output to drive a small external speaker.
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Product
Noise Figure Analyzer, Multi-touch, 10 MHz to 7 GHz
N8974B
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The N8974B high performance noise figure analyzer is designed to make fast, accurate and repeatable noise figure measurements. When paired with an SNS Series noise source and U7227 Series USB preamplifier the ENR data from the SNS and USB preamplifier data automatically downloads into the N8974B.
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Product
2-Ch Sensor Amplifier
SR-2210
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The SR-2210 sensor amplifier accepts constant-current line drive sensors and connects the signal to analyzers and recorders that would not otherwise be compatible with constant-current sensors.The units connects directly with BNC connectors to ONO's model MI-3111 microphone preamplifiers and NP-3000 series of accelerometers.With compact, light-weight, battery operation, it can save for preparation of measurement.
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Product
MCT IR Detector Module
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The MCT (Mercury-Cadmium-Telluride) IR (infrared) Detector Module is a thermoelectrically cooled detector element and preamplifier package optimized for acquiring spectral data with the LaserTune Quantum Cascade Laser (QCL) source.
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Product
Low Noise Pre-Amplifiers
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Low Noise Pre-Amplifier and companion external low noise amplifier (LNA) are used to amplify low level microwave signals. The Pre-Amplifier contains an AC/DC power supply, internal low noise amplifier, and a bias tee to source a DC bias voltage on the RF input connector.To overcome cable loss between the test antenna and the Pre-Amplifier assembly, a remote low noise amplifier (LNA) is mounted directly onto the 10 GHz antenna. A bias tee inside the Pre-Amplifier chassis powers the remote LNA through the coax cable interconnecting the pre-amplifier and the 10 GHz test antenna.
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Product
(70×90×15mm) C-Band DWDM Full Function Pre EDFA Module
WPA4300-FM02
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Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai Huatai WPA4300-FM02 series with 70 × 90 × 15mm MSA compact package, is a digital control circuit with DWDM full function preamplifier module. 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. Suitable for C-Band 44 or 88 waves DWDM system applications.
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Product
Low Cost Microwave Wideband APD Preamp Receivers
MR11 (40KHz~18GHz)
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Hangzhou Huatai Optic Tech. Co., Ltd.
MR11 series microwave wideband optical receiver, adopts high Sensitivity APD diode and Low Noise Preamplifier IC, within bandwidth of 40KHz~18GHz, they are featured with excellent linearity, high responsibility and superior flatness of the RF response in both, power and phase. They provide an outstanding linearity fiber optical communication for analogue wideband microwave application. Due to avoidance of using expensive coaxial cable or wave-guide, there will be no limitation in transmission distance, which improves the signal quality and reliability of the microwave communication. They can be widely applied in microwave communication system such as remote wireless, timing and reference signal distribution, telemetry, measurement and delay line etc as well as 10Gb/s high speed communication system.
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Product
FieldFox Handheld Microwave Spectrum Analyzer, 4 GHz
N9933B
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A lightweight, durable, microwave spectrum analyzer, interference analyzer, distance-tracking generator, preamplifier, power meter, and more.
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Product
Microphone System
378B02
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This model includes a 1/2" microphone cartridge, a mated preamplifier with TEDS, and system calibration.
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Product
FieldFox Handheld Microwave Spectrum Analyzer, 6.5 GHz
N9934B
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A lightweight, durable, microwave spectrum analyzer, interference analyzer, distance-tracking generator, preamplifier, power meter, and more.
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Product
60 GHz Noise Figure Test Set
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The Noisecom 60 GHz Noise Figure test set has 4 separate systems designed to perform Y-factor noise figure measurements using a high performance Spectrum Analyzer or a dedicated receiver. Each system contains a highly stable V-band noise source, isolator(s), optional waveguide to coaxial transitions and an optional pre-amplifier for use with a spectrum analyzer. The two standard calibration tables have ENR data points at 1 GHz intervals.* System ENR is measured before the DUT connector and at the final output stage allowing for pre-test calibration of the system.
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Product
Noise Figure Analyzer, Multi-touch, 10 MHz to 26.5 GHz
N8975B
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The N8975B high performance noise figure analyzer is designed to make fast, accurate and repeatable noise figure measurements. When paired with an SNS Series noise source and U7227 Series USB preamplifier the ENR data from the SNS and USB preamplifier data automatically downloads into the N8975B.
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Product
Filtered Preamplifers
FPA
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These low noise figure, high gain preamplifiers provide low system noise figure andallow longer antenna to receiver cable lengths. Preamplifiers can be specified withseveral filter configurations.
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Product
Preamplifiers
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A.H. Systems'' Preamplifier line is an excellent choice with a rugged design, no hassles with soldering your own power leads and they improve overall system sensitivity by at least 20 dB. All of A.H. Systems'' Preamplifiers come with a 12-volt (or 15-volt) DC regulated power source. A low voltage indicator confidently allows you to power the amplifier with your own external 12-volt DC battery. This makes it a convenient choice for field measurements. See table below for amplifier specifications.
