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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
Ultrasonic Level Sensor
2270
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The type 2270 is a rugged, high performance ultrasonic level measurement sensor, having transducer and processing electronics incorporated in one single housing. It provides all the sophisticated echo detection features of the well accepted 2260 Ultrasonic Level Transmitters.
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Product
950~2400MHz DVB-S 4 ways SAT-IF CWDM Optical Transmitter & Receiver
HDBS-4000CW
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Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai HDBS-4000CW series is integrated 4pcs of SAT-IF CWDM standard wavelength optical transmitters with optical receivers in a casing. Through CWDM, Transmitter 4 ways optical multiplex (TX) or demultiplex (RX) through one fiber. It can be well used in transmitting a satellite VL, VH, HL, HH different polarize 4 way SAT-IF signal. It can be easily operated.
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Product
4-Band SAT-IF & CATV Overlay. Externally Modulated Optical Transmitter
HES-55A (47~862 & 950~5500MHz )
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Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai HES-55A series 1550nm wide band micro-wave external modulation optical transmitter, adopts external modulation technology, without laser chirp, extremely low dispersion distortion, large extinction ratio. It fits for high ratio, high broadband, long distance telecommunication network application.
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Product
4-20 mA Loop Powered Two Wire Oxygen Transmitter
OxyTrans
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The Edgetech Instruments Model OxyTrans is an easy to use, accurate and economical way to measure Oxygen at trace and % levels. A simple display and one point calibration allows for a quick start of the instrument.
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Product
Wireless sensors for humidity
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The wireless transmitters in the EE240 series combine state-of-the-art sensor technology with excellent transmission reliability. Installing the wireless measurement system is very easy and one network can contain up to 500 transmitters. Wireless transmitters EE244 and EE245 are ideally suited for wireless, high-quality measurement of humidity and temperature.
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Product
Single-Port Tunable Laser System Source
N7711A
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The Keysight N7711A and N7714A tunable lasers are single-port and four-port sources, available with C-band or L-band wavelength coverage. The narrow linewidth and offset grid fine-tuning capability make them ideal sources for realistic loading of the latest transmission systems. All models can reach any wavelength point within their specified wavelength range just like all other Keysight tunable lasers. In this mode, code compatibility with existing test setups based on Keysight's range of full-size and compact tunable lasers is a great asset. In system loading applications, it may be preferable to grid-tune the lasers like system transmitters, simply by changing the channel index. The channel grid is adjustable to standard ITU-T grid spacing like 50 GHz, and to arbitrary grids. Likewise, the zero frequency (base channel) of the chosen grid is adjustable. A 12 GHz fine-tuning range allows de-tuning the frequency.
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Product
Solar Cell Characterisation
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The PVE300 permits the determination of device spectral responsivity (from which may be determined EQE), and, having performed measurements of sample reflectance (and transmittance where required) the determination of IQE.
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Product
Advanced Monitoring Probe
DVB-T/T2
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Combined with a Network Monitoring System or not, the EdgeProbe Advanced provides a powerful broadcast network alert & diagnosis tool allowing DTV network operators to monitor global trends and anticipate potential failures.EdgeProbe Advanced is able to monitor DVB-T and DVB-T2 signals at transmitter outputs, through its RF inputs (up to 4 in 1RU), as well as at modulator input and at Head-End/distribution links, through its ASI and IP inputs.
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Product
Level & Pressure Transmitters
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This series of low-pressure transducers is specifically designed for demanding industrial applications where the primary criteria are reliability and economy. These units provide repeatable, precision measurements under the most hostile condition.
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Product
Temperature, Humidity, Bar. Pressure Transmitter
T7311-2
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Humidity, temperature probe on a cable. Measured values are also converted to other humidity interpretation: dew point temperature, absolute humidity, specific humidity, mixing ratio, specific enthalpy. Built-in pressure sensor.
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Product
Plug-On Transmitter
HMa
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This unique plug-on transmitter design will ideally match any microphone or line level source via a standard XLR connector. Phantom power is selectable at 5, 15 and 48 volts, or can be turned off for use with dynamic microphones and line level signal sources.
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Product
Digital Wireless System
D2 System
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The D Squared digital wireless microphone platform utilizes the Lectrosonics 4th-generation digital architecture for excellent flexibility, ultra-fast setup, studio quality audio, and ultra-low latency. The system includes the DSQD 4-channel digital receiver, DBu digital belt pack transmitter, and DHu digital handheld transmitter. System features include 24 bit, 48 kHz digital audio, 2-way IR sync, three different encryption key policies, and a tuning range from 470-608 MHz (470-614 MHz for export versions).
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Product
Split-box Pipe & Cable Locator
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Weshine Electric Manufacturing Co., Ltd
Pipe Locator is specially designed to detect pipes, sondes, telecommunication lines buried utilities. This device may detect buried power cables, CATV cables, gas and water pipes, sewer lines, telephone cables, fiber optic cables with sheath, sondes, inspection camera transmitters. The Transmitter emits a signal.
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Product
Transmitter Control Subsystem (TCS)
Loran C Accufix 7500
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USCG Loran Transmitter Control and Display stations modernized and upgraded to state-of-the-art processor controlled technology. Fully redundant system with comprehensive built-in performance monitoring. Automatic switchover upon detection of error, high single point failure tolerance. Long distance communications link supports remote station operation on a continuous basis. Built-in fault detection and monitoring enables dynamic re-allocation of failed subsystem modules, and fault isolation to major replacement assemblies.
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Product
Moisture Permeability Tester
DRK501F
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Shandong Drick Instruments Co., Ltd.
The principle of moisture permeable cup weighing method is to measure the transmittance of water vapor to film, sheet, paper and other materials by weighing the weight of moisture permeable cup.
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Product
CO2 Concentration Transmitter
T5240
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CO2 concentration transmitter with 0-10V output is built in a durable case. Output range is user adjustable. Large dual line LCD is an advantage. Display is possible to switch off.
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Product
T, RH, Pressure and Air Speed Transmitters
HD2001… Series
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Relative Humidity, temperature, barometric pressure, air speed trasmitters with display
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Product
pH / mV Transmitter
DO9403T-R1
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The DO9403T-R1 pH transmitter converts the output of a pH electrode, with temperature compensation, into a 4÷20 mA signal.
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Product
Particle Size Analyzers
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Particle systems can be complex, but measuring them doesn’t have to be! Anton Paar offers two different technologies to characterize particles from the nanometer to the millimeter range. The Litesizer series employs light-scattering technology to determine not only particle size, but also zeta potential, transmittance, molecular mass, and the refractive index of nano- and microparticles in liquid dispersions. The PSA series uses laser diffraction technology to measure the size of particles in both liquid dispersions and dry powders in the micro and millimeter range. Side by side they open up a wide range of possibilities for comprehensive particle characterization.
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Product
Power Amplifier, RF
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Is a type of electronic amplifier that converts a low-power radio-frequency signal into a higher power signal. Typically, RF power amplifers drive the antenna of a transmitter.
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Product
CO2 Concentration and Temperature Transmitter
T8148
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CO2 concentration and temperature transmitter with two 4-20mA outputs is specially designed for use in exacting interiors in building energy management and HVAC systems. It designed for easy installation on ordinary KU68 wiring boxes for household switches and sockets. Large dual line LCD is possible to switch off. Computerized design ensures long term stability and fail indication. Transmitter is designed for use in non-aggressive environment.
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Product
Hygrometer, 3 State Thermoelectric Cooler
CR - 5 Hygrometer
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Buck Research Instruments, LLC
The CR-5 is a chilled mirror hygrometer that uses a 3-stage thermoelectric cooler (TEC) to enable frost point measurements of as low as 60 C, under favorable ambient conditions. It is configured as a transmitter module with an external sensor connected by cable up to 9 feet in length.
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Product
Push-Button Temperature Transmitter
659
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Series 659 Push-Button Temperature Transmitters accept thermocouple (J, K, T), RTD (Pt100Ω) or thermistor input and provide a linearized 4 to 20 mA output. The transmitter is quickly ranged and calibrated by using a single on-board switch
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Product
UV-VIS-NIR Spectrophotometer
UV-2600i, UV-2700i
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The compact UV-2600i/2700i is a universal, research-grade spectrophotometer that can be used in a wide range of fields, and easily expanded to suit the measurement objective. By using the optional integrating sphere, the measurement wavelength range of the UV-2600 can be extended to the near-infrared region of 1400 nm. The UV-2700 is capable of 8-Abs measurements, and optimal for measuring low transmittance samples.
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Product
Ultrasonic Leak Detector
7635
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Peaceful Thriving Enterprise Co Ltd
Ultrasonic leak detector utilizes ultrasonic sensor to check the air-tightness of pipeline. The operation is easy and accurate. The instrument can identify the gas leakage of various pressure or vacuum system. The transmitter will generate 40kHz ultrasonic signal, and it is used in conjunction with the detector to detect the leaking location of the object. For example, the detector will detect signal leaking from the hole of the pipeline and as user moves the detector, the hole can be located correctly. The main application is the tightness test of any kinds, for example, doors, windows, plumbing, container, car windows, refrigerators … etc.
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Product
Temperature
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NOSHOK’s Temperature Measurement Solutions include bimetal thermometers, vapor actuated remote thermometers, digital temperature indicators, probe type RTDs, RTD transmitters, temperature transmitters & switches, and thermowells. We also offer a variety of options and accessories such as stem types, connections, special dials and lenses, certified calibration and RTD terminal blocks.
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Product
VOD Overlay 1550nm Direct Modulated Optical Transmitter
VOD1504
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Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai VOD1504 is a high performance 1550nm direct modulated inter-cut (narrow-bandwidth multiplex) optical transmitter which design and manufacture specially for realizing two-way television interact operation (VOD) for CATV network, mainly used in second service area to inter-cut IP/QAM or local program. In the content distribute network system (CON), VOD1504 is the VOD flow rate loading equipment, also often called the edge IP/QAM optical transmitter.
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Product
pH & ORP Sensors
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The Barben Analytical Performance Series products are 3rd generation combination pH/ORP electrodes targeted at harsh, industrial measurement applications. High pressures, strong chemicals, and elevated temperatures typically shorten the lifespan of conventional double-junction pH probes. In these applications the Performance Series sensor offers extended sensor lifespan, as well as decreased drift, and longer calibration intervals. Each sensor is manufactured with our patented Axial Ion Path® reference technology, proprietary Low-Noise & High-Temp Signal Cable along with proprietary ruggedized, high temp and coat resistant glass formulations. A wide selection of sensor body styles and process fittings in a variety of corrosion resistant materials allow direct replacement of short-lived OEM pH/ORP sensors. Barben Performance Series sensors are compatible with all major manufacturers of pH analyzers and transmitters. Upgrade your analytical measurement without the hassle and expense of replacing costly field instruments.
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Product
Temperature and Humidity Transmitter
T3419-2
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Humidity, temperature probe on a cable. Measured values are also converted to other humidity interpretation: dew point temperature, absolute humidity, specific humidity, mixing ratio, specific enthalpy.
