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OTA

signals transmitted without cables. AKA: Over The Air

See Also: Wireless, Over the Air, Antenna Measurement


Showing results: 76 - 90 of 93 items found.

  • Thermal Division Overview

    MPI Thermal Test Systems

    MPI Thermal is a division of MPI Corporation. With over 60 years of combined thermal control system experience with our international engineering teams, this has brought about a comprehensive product portfolio of thermal air stream systems for today's manufacturer's environmental test chamber needs.

  • Portable Analyzers

    Alpha Moisture Systems

    The key to the operation of Alpha Moisture Systems' Portable Analysers is the unique Desiccant Dry-Down Chamber. By keeping the sensor dry between tests, the special assembly of the head ensures that the instrument is always ready for immediate use. The head assembly consists of two chambers which have a telescopic action. When the head assembly is in the 'closed' or 'Dry-Down' position, the sensor is completely surrounded by desiccant, which absorbs the remaining water moisture from the sensor and hence it is dry and ready for use. The small space at the bottom of the test chamber enables the sample pipe to be purged before the test commences without wetting the sensor. By placing a finger over the outlet of the head, the sample pressure is able to open the test chamber automatically, exposing the sensor to the gas being tested and enabling accurate reading of moisture content in the sample gas. After each test the head assembly is closed by depressing the inner section so that the sensor will again be dried by the desiccant, leaving the sensor ready for use time and time again. The desiccant is kept in the inner chamber and is not exposed to ambient room air or the sample gas, therefore there is no need for frequent regeneration or replacement of the desiccant.

  • Over the Air Antenna Testing

    National Technical Systems

    During research and product development of any Internet of Things (IoT) device or Machine to Machine (M2M) product, it is important to make sure the antennas designed or selected will perform the way they are intended. For example, when designing an antenna for a large stationary device like a vending machine, it is likely installed or placed against a wall. Designing or selecting an antenna that concentrates its energy and radiates toward the front of the device would be ideal for this environment. In the case of a mobile device, like a smart phone, it is important for the antenna to radiate in all directions and not lose communication link when the user moves around or faces a particular direction away from the cell tower. Over-the-Air antenna testing and measurements are the only way to qualify the entire signal path and antenna pattern of a wireless device.

  • Semiconductor Package Wind Tunnel

    WT-100 - Thermal Engineering Associates, Inc.

    The WT-100 Forced Convection (Moving Air) Wind Tunnel is designed in accordance with the EIA/JEDEC JESD51-6 standard for thermal characterization of semiconductor packages and devices. The vertical design minimizes laboratory floor space requiements. Air is drawn in at the bottom and exhausts at the top. The test section is large enough to accommodate the largest JEDEC and SEMI thermal test boards. Air velocity can be adjusted over the range of 0.5 to 5 m/s; air velocity is monitored with an included hot-wire anemometer connected to a digital display. A Type-T thermocouple is mounted in the test section for monitoring the moving air temperature.

  • Microwave TV Transmitters for Radio Amateurs

    Kuhne electronic GmbH

    Is the transmission of broadcast quality video and audio over the wide range of frequencies of radio waves allocated for radio amateur (Ham) use.[1] ATV is used for non-commercial experimentation, pleasure and public service events. Ham TV stations were on the air in many cities before commercial television stations came on the air.[2] Various transmission standards are used, these include the broadcast transmission standards of NTSC in North America and Japan, and PAL or SECAM elsewhere, utilizing the full refresh rates of those standards. ATV includes the study of building of such transmitters and receivers, and the study of radio propagation of signals travelling between transmitting and receiving stations.[

  • Super MUTT Deluxe Edition Electrical Circuit Tester

    #9008-DL - Innovative Products of America

    The Super MUTT places a load on the trailer's electrical circuits to identify wiring problems while providing remote control operation over both air brakes and lights. Built to facilitate a one-man testing operation, the Super MUTT reduces guesswork and inspection time to prevent failures that lead to expensive road calls and citations. The remote control allows for repetitive air brake actuation at each axle to reveal developing problems often missed by normal testing procedures.

  • Super MUTT Deluxe Standard Edition

    #9008-SE - Innovative Products of America

    The Super MUTT places a load on the trailer's electrical circuits to identify wiring problems while providing remote control operation over both air brakes and lights. Built to facilitate a one-man testing operation, the Super MUTT reduces guesswork and inspection time to prevent failures that lead to expensive road calls and citations. The remote control allows for repetitive air brake actuation at each axle to reveal developing problems often missed by normal testing procedures.

  • Strength Testing

    Sataton Instruments Technology CO., Ltd

    Air permeability tester is professional designed to determine the permeability of materials to air. By testing the rate of flow of air passing perpendicularly through a given area of tested sample under a given pressure over a given time period, the tester can provide results of air permeability performance by calculation the indices. The air permeability testing instrument is applicable to many type of materials, including industrial fabrics, nonwovens, made-up textiles, paper and board, foam and other materials.

  • Thermal Shock Chamber

    ACE Technology

    1.The outer skin is make of steel plate coating with Zinc on double sides, processed with digital control, and painting process on surface for protection. 2.The inner material is stainless steel SUS304. 3.The chamber is divided into 3 parts: high temperature zone, low temperature zone and testing zone. Special heat isolating structure and preserve cold and heat treatment. 4.Lead high or low temperature into chamber by switching over cold or heat air valve. 5.Can set low, high, or thermal shock model independently, two cases or three cases option at thermal shock model, meanwhile, high and low temperature testing function is available. 6.Switching over time for wind direction valve is less than 10 seconds.

  • High Mount Ionization Transport System

    HM-8000 - ElectroStatics, Inc.

    The Model HM-8000 High Mount is designed to be suspended over the work station with the ionized air blowing down over the area to be protected against an ESD event which is caused by static electricity build up.

  • Magnetic System

    NMR-EA300 System - Caylar

    The NMR-EA300 system is the reference for calibrating magnetic sensors. It allows to generate an absolute magnetic field at <±10mG (0.1 uT) without temperature drift (<0.1ppm/C°) over a range from 14mT to 3T. This system is composed of an EA300 electromagnet with NMR poles, a MPU-16U ±150A ±70V current source of class 1ppm and a NMR20 Teslameter with a magnetic field controller (FR020).A thermostat chamber can be installed in the air gap (Optionally available on 50mm and 70mm gap poles).

  • CoolMaster

    1000D - Dimax

    CoolMaster 1000D is versatile bridge device connecting Daikin VRV Air Conditioning systems and any RS232 or USB capable device like Home PC, Embedded PC or Home Automation Controller. Exposing simple interface over RS232 communication line or USB bus, CoolMaster gains user application full control on indoor units and provides access to VRV system parameters. In other words CoolMaster hides complexity of internal Daikin Communication line (including very unique physical layer) and instead gives simple, comprehensive, well documented protocol running on popular RS232 or USB connection.

  • Universal Compression Tester for Gasoline Engines

    34000 - S & G Tool Aid Corp

    Test compression on all domestic and foreign cars and most trucks. Adapters fit vehicles with 14mm and 18mm plugs including long reach and 5/8" hex plugs. Flex hose eliminates need to remove auxiliary equipment such as power brakes and steering, air conditioning and manifold. Screw in adapters guarantee accuracy over push-in type testers. Quick side release valve permits retest without removal of adapters. Gage ranges 0-300 PSI and 0-21 BAR. Supplied in storage pouch.

  • Tunable Amplifier for a Wide Range of Applications

    BBA130 - Rohde & Schwarz GmbH & Co. KG

    The R&S®BBA130 broadband amplifiers provide RF output power between 22 W and 13000 W over the frequency range between 80 MHz and 6 GHz. The robust amplifiers offer flexible setting options so that an optimal RF signal can be generated for the specific application. It is therefore possible during operation to adjust the bias point for the transistors between Class A and Class AB and to change the mismatch tolerance at the output to provide more power. The air cooled amplifiers have a compact, modular design and are suitable as desktop models or can be installed in a rack. Its upgradability in frequency and power safeguards customers' investment.

  • Hydrostatic Testers

    Hydraulic Technology, Inc.

    Hydraulic Technology Inc. has been manufacturing hydrostatic test equipment to the U.S. Military, aerospace and industrial sectors for over 30 years. These hydrostatic test systems are used for both high pressure proof testing and burst hydrostatic testing. By simply connecting one of our hydrostatic test systems to a shop air supply, safe high pressure testing can be accomplished with hydrostatic test output pressures available up to 15,000 psi. Among other specifications, our hydrostatic testers meet the requirements of MIL-T-25456, A-A-52687 AND PD02LEEE07. In addition to U.S. Military stock listed hydrostatic testers, we manufacture both standard and custom hose proof test stands, portable hydrostatic testers, hydrostatic test chambers and ancillary equipment to fit individual customers’ needs as required. We can typically ship standard units within 24-72 hours, sooner if required.

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