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OTA
signals transmitted without cables. AKA: Over The Air
See Also: Wireless, Over the Air, Antenna Measurement
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Wireless Transmission
Wireless transmission is a form of unguided media. Wireless communication involves no physical link established between two or more devices, communicating wirelessly. Wireless signals are spread over in the air and are received and interpreted by appropriate antennas.
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Medium-size Compact Antenna Test Range
H-Series CATR
The H-Series CATR chamber provide complete 3D performance assessment for 5G OTA devices and antennas including gain, efficiency, directivity, polarization and beam characteristics for frequencies from 3 up to 110 GHz, capable of supporting forthcoming 5G Sub-6 GHz (from 3 to 6 GHz) and mmWave (24 to 110 GHz) standardized testing including TRP/TIS, EIRP, EIS, IBB and emissions in accordance to 3GPP TR38.810 and TR37.842.
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CATR Benchtop Antenna Test System
ATS800B
Very compact far-field over-the-air (OTA) test system based on compact antenna test range (CATR) technologyUnrivaled quiet zone size within 0.8 m2 footprintState-of-the-art reflector ensuring a high quiet zone accuracyUnique benchtop CATR system supporting over 50 GHzIndirect far-field method (approved by 3GPP for 5G OTA testing)
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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.
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SmartCab OTA
SmartCab Over-the-Air (OTA) enables “Over the Air” delivery of software and configuration file updates for the locomotive control system and onboard devices, improving delivery productivity and efficiency.
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Advanced Reconfigurable Modular OTA RF Test Enclosures, ≥100 DB Isolation, 300 MHz - 90 GHz
dbSAFE ARMOR
The dbSAFE ARMOR series of shielded boxes are cost-effective solutions for OTA testing in the mmWave spectrum. Providing a shielded, fully anechoic test environment, these RF test enclosures ensure stable and repeatable measurements over a wide frequency range (from 300 MHz to 90 GHz).
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Microwave TV Transmitters for Radio Amateurs
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.[
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Digital Anemometers
This multifunction anemometer provides instant data such as Air Speed and Temperature in Dual Level LCD display with Backlight. This tool has wide measuring range of wind speed from 0 ~ 45m/s (0 ~ 8800ft/min) and temperature from 0 ~ 45°C (32 ~ 113°F). This weather device is an ideal tool for windsurfing, sailing and kite flying. You can also use it for industrial and home purposes such as measuring speed and temperature of CPU computer fans, air-conditioners, airflow over the roof or walls.
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Evaporation Loss Tester
K10680
Chongqing Kailian Yongrun Industrial Co.,Ltd.
To evaluate the potential for evaporation loss of lubricating greases and lubricating oils. A controlled flow of heated air is passed over the sample for a specified period. Evaporation loss is measured by the change in sample weight during the test;
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Universal Compression Tester for Gasoline Engines
34000
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.
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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.
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Magnetic System
NMR-EA300 System
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).
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Environmental Chamber
REXMED REC-280
MOD. REC-280, AC 230/380/415V, 1/3 phase, Environmental chamber, HS CODE: 841989, UNCCS CODE: 484384, UMDNS CODE: 16327, Main construction: SS304, Interior: SS304, Exterior: SS304 powder coated, Insulation: Rigid polyurethane foam and glass wool, Controller: Fix point PID controller, temperature ˚C/PV and ˚C/SV, humidity %/PV and %/SV display and setting, Temperature range: -20˚C~100˚C, Humidity range: 20%RH~98%RH, Constancy: ±0.3˚C ±2.5%RH, Uniformity: ±1˚C ±3%RH, Temperature and humidity sensor: PT 100Ω, Temperature and humidity audio and visual warning and OFFS correction setting, Temperature heater: 2.3KW X 2pcs, Humidity heater: 4.5KW X 1pc, Heat up transition time: -20˚C~100˚C within 35 min, Refrigeration system: Air cooled, single stage, Cooling compressor: Bristol hermetic compressor, Cooling capacity: 3,140 Watts, 10,700 BTU/hr, 2,702 Kcal/hr, Cool down transition time: 20˚C~-20˚C within 45 min, Safety devices: No fuse breaker, refrigerator over load relay, refrigeration high pressure switch, over temperature protector, protection relay, protection fuse, water level control and overheat protector, Chamber: L100 X W80 X H100cm, Capacity: 800L, chamber with key lock, with lamp (DC 12V 50W) X 1pcs and double glass viewing window, testing cable port with cover: Ø25mm, 4 castors, W/S: shelf X 2pcs, standard testing wet cloth X 5pcs, PCV water container X 1pc
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Glass Door Humidity Chambers
FW30
The Bemco FW30, mechanically cooled, Glass Door Humidity Chamber has a temperature range of -18 C to +94 C (0 F to 200 F) and a humidity range of up to 5% RH to 95% RH. This chamber features dry air injection and a direct humidity sensor. It operates without dewpoint limit from 5% RH to 95% RH over the range of 30 C to 85 C and even allows operation at 20% RH at 5 C and 50% RH at -14 C!
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Portable Analyzers
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.
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Propsim Channel Emulation Solutions
Propsim Channel Emulation Solutions are versatile and easy-to-use in a wide range of applications including MIMO, Beamforming, WLAN, Aerospace, MANET and MIMO OTA testing.
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Battery Data Logging Device
FST-AM
Foresight Electronics Co., Ltd.
A data logger, is an electronic instrument that records measurements at set intervals over a period of time. Depending on the particular data logger, measurements can include: air temperature, relative humidity, AC/DC current and voltage, differential pressure, time-of-use (lights, motors, etc.), light intensity, water temperature, water level, dissolved oxygen, soil moisture, rainfall, wind speed and direction, leaf wetness, pulse signals, room occupancy, plug load, and many more.
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5G | OTA | Bluetooth | PTCRB Testing Services
Eurofins E&E Wireless Device Over-the-Air (OTA), 5G Performance, Bluetooth, PTCRB, and Global Certification Forum Testing.
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Thermal Division Overview
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.
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Wireless Devices
Schweitzer Engineering Laboratories, Inc.
Wireless devices use radio signals to communicate and pass data over the air, eliminating the need for traditional cabling.
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Enlarge Environmental Chamber
REXMED REC-480
MOD. REC-480, AC 230/380/415V, 1/3 phase, Environmental chamber, HS CODE: 841989, UNCCS CODE: 484384, UMDNS CODE: 16327, Main construction: SS304, Interior: SS304, Exterior: SS304 powder coated, Insulation: Rigid polyurethane foam and glass wool, Controller: Fix point PID controller, temperature ˚C/PV and ˚C/SV, humidity %/PV and %/SV display and setting, Temperature range: -40˚C~100˚C, Humidity range: 20%RH~98%RH, Constancy: ±0.3˚C ±2.5%RH, Uniformity: ±1˚C ±3%RH, Temperature and humidity sensor: PT 100Ω, Temperature and humidity audio and visual warning and OFFS correction setting, Temperature heater: 2.3KW X 2pcs, Humidity heater: 4.5KW X 1pc, Heat up transition time: -40˚C~100˚C within 45 min, Refrigeration system: Air cooled, single stage, Cooling compressor: Bristol hermetic compressor, Cooling capacity: 5,270 Watts, 18,000 BTU/hr, 4,545 Kcal/hr, Cool down transition time: 20˚C~-40˚C within 50 min, Safety devices: No fuse breaker, refrigerator over load relay, refrigeration high pressure switch, over temperature protector, protection relay, protection fuse, water level control and overheat protector, Chamber: L100 X W80 X H100cm, Capacity: 800L, chamber with key lock, with lamp (DC 12V 50W) X 1pcs and double glass viewing window, testing cable port with cover: Ø25mm, 4 castors, W/S: shelf X 2pcs, standard testing wet cloth X 5pcs, PCV water container X 1pc
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Automotive Radar Testers
Rohde & Schwarz provides automotive manufacturers, components suppliers and test houses with innovative, cutting-edge solutions which bring realistic test scenarios from the road to the lab and production line.Our range of solutions include a signal generator-based target simulator, a radome & bumper tester and an anechoic automotive radar test chamber allowing for over-the-air (OTA) testing. These solutions are at the heart of the development of advanced driver assistance systems (ADAS) with its safety-critical features such as emergency braking. Using T&M solutions by Rohde & Schwarz enables a thorough testing of chipsets, sensors and modules at each phase from development and conformance to production.
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Optimize Throughput And Cost For MmWave 5G Device Functional Test
Test engineers always have faced tough new test-coverage challenges. Those introduced by 5G measurements at mmWave are no exception, as they require over-the-air (OTA) radiated test solutions. But never have these pressures seen today’s intense time-to-market, manufacturing volume, and operational expectations! A solution that meets these demands must:
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OTA Chamber for 5G NR mmWave Signals
ATS1800C
The R&S®ATS1800C CATR based 5G NR mmWave test chamber provides the ideal environment for testing 5G FR2 antennas, modules and devices over the air (OTA) from R&D to conformance. With its small footprint and wide frequency range, the R&S®ATS1800C offers great functionality and test coverage in a very small space. With its flexibility and broad range of extension options, the R&S®ATS1800C offers a solid and future-proof environment for your FR2 testing needs.
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*High Current Switches
B-1002
Ross High Current Switches are available up to 36,000 amps continuous and over 1,700,000 amps 20µsec RC pulse, with voltage ratings of 6 volts to 400kV peak test. Standard Ross high current switches are built with 80 to 120psi air cylinder actuators. Air cylinder or motor operated for high contact force. Arcing contacts optional for closing current. G-10 epoxy glass laminate is standard insulation on most models. G-7 silicone glass is used on models available for RF applications above 100kHz. Most Ross high current switches are available with additional lengths of insulation, where the high voltage contacts need to be spaced at a greater distance from the actuator and control circuit. Voltage withstand value is at least doubled and the interrupt capability is much greater when high current switches are immersed in insulating oil, fluid or SF6 gas. For gas atmosphere, no modifications are necessary; however, oil or fluid immersion requires modification at a slight extra cost.
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Airborne Tactical Advantage Company
ATAC
Our sister company, ATAC operates a live-air training business focused on real-world combat situations and is the world’s largest outsourced civilian, tactical airborne training organization. ATAC has trained Navy, Air Force, Marine and Army air-crews, ship-crews and combat controllers in the air-to-ship, air-to-air and air-to-ground arenas. Over the last 20 years, ATAC has accumulated over 60,000 training flight hours and has pioneered much of what is now standard in the growing tactical airborne training services industry.
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Over The Air (OTA) Tests
OTA testing is a way to ensure that the wireless devices designed or selected are performing as expected. The OTA test measures the entire signal path and antenna performance. The antenna performance is influenced by different product requirements, applications, size of the housing, materials, bandwidths, frequencies, etc.
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Hydrostatic Testers
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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Antenna Couplers
Concentric Technology Solutions, Inc.
RF Antenna Couplers help create the ideal environment for shield boxes by providing a consist, stable and reliable environment for repetitive over the air (OTA) tests.
