Showing results: 106 - 120 of 206 items found.
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Praxsym
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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Rohde & Schwarz GmbH & Co. KG
Complete your EMC test setup with the essential accessories to compliment the test equipment. Whether it is a LISN (or V-Network) to counteract interference from external power sources on conducted emissions from the device under test, probes to locate the near field sources of radiated emissions, receive and transmit antennas, or tripods for holding antennas in place, the Rohde & Schwarz catalog of EMC accessories provides the additional items you need for EMI and EMS measurements, guaranteed 100% suitable for use with Rohde & Schwarz EMC test equipment.
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Com-Power Corporation
A typical emi emission test is performed using broadband EMC antennas such as biconical, log periodics, Combilogs and horns. These antennas usually placed at 1, 3 or 10 meter distance as required by the test specification. These is considered far field measurements and the emission limits are given for the specific distance by the specification. During EMI compliance measurements, the emissions levels from products are compared with these limits. If the product exceeds these limits it is considered failing. These tests are typically conducted in a open area test site IOATS) or inside an anechoic chamber.
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Praxsym
The Praxsym CW Transmitter is a complete, portable continuous wave test source. Used as an input source to test a distributed antenna system, the Praxsym CW Transmitter can provide test signals aiding in the design and optimization of in-building and outdoor networks.
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Schwarzbeck Mess Elektronik
The broadband horn antennas BBHA 9120 offer a very low SWR in their nominal frequency range and a very broad bandwidth. The gain increases with frequency up to approx. 21 dBi, depending on the horn's size and shape. The increasing gain with frequency helps to compensate cable losses. The BBHA 9120 series is suitable for both, transmission and receiving applications. The max. allowed Input Power is only limited by the female N-connector. The detailed manual of the calibrated test antennas includes Gain, Antenna Factor, SWR and Directional Patterns. The antenna is mounted with the 22 mm tube, equipped with a Index Ring for quick changes of polarisation without using tools.
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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.
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Cuming-Lehman Chambers
Most antenna measurements need to be carried out in the far field; that is, the test antenna should be illuminated by a plane wave. Typically this is carried out by providing sufficient separation between the source and the AUT so the spherical wave approaches a plane-wave character.Near-Field chambers are an excellent alternative to traditional far-field ranges; testing that can be accomplished on a far-field range can be accomplished on a Near-Field test range. This method of testing allows an operator to employ an indoor anechoic test chamber at a reasonable cost and avoid the problems associated with weather and security concerns often encountered when using an outdoor test range.
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NSI-MI Technologies
Far-Field testing can be accomplished in either outdoor or indoor configurations. The most common far-field test ranges are outdoor facilities. In an outdoor far-field range, the test antenna is installed on the test positioner located on a tower, roof or platform outside the instrumentation control room.
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EMC Test Antennas -
Seibersdorf Labor GmbH
There are some changes in the calibration standard ANSI C63.4 concerning the calibration procedures of hybrid antennas, also the newly issued standard - CISPR 16-1-6 dealing with EMC antenna calibration is covered by our services. You are very welcome to consult Seibersdorf Laboratories calibration experts for the recommended calibration procedures of the most common radiated emission test standards.
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MODP2080 -
Microwave Factory Co,Ltd.
Antenna for Radiation Immunity Test on Car Max. Input Power : 12kW & High Erectric Field at = 4 : 100V/m Contolable the Height/Deviation by own unique Stand Patent Information.
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Antenna Research Associates
ARA offers both outdoor far field range services and indoor anechoic chambers at all of its locations. Outdoor ranges vary from 5,000 ft, 1250 ft, to 300 ft. ARA has forklifts, crane services, and man-lifts to suit your antenna size and weights. Complete RF measurement instrumentation is available for conducting all standard tests up to 40 GHz. RF testing is conducted in accordance with ANS / IEEE Std. 149-1979 "Standard Test Procedures for Antennas."
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Seibersdorf Labor GmbH
During the recent years we have made scientific investigations regarding calibration procedures, which have been published and integrated in the European and International standards. The calibration of antennas and field probes in Seibersdorf is done on the reference open area test site, in three different TEM-Cells and in the fully anechoic chamber. The open area test site is one of the best in Europe. Since 1996 we are the accredited calibration laboratory according to Akkreditierung Austria 0612 for antennas and field probes.
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LXinstruments GmbH
The application encompasses functional tests of very large quantities of automotive antenna amplifiers, plus parallelization of tests by implementing several test stations in a rotary indexing table. The DUTs are inserted manually and after final assembly, they are loaded into the rotary table; this requires manual triggering by the operator.
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LXinstruments GmbH
In the production process of a vehicle door handle, the electrical functions of the component are to be tested. The mechanical testing of the operation of the door handle is performed by a PLC-controlled test system. In addition to the mechanical test, the electrical parameters: “serial data stream” and “impedance of the antenna” are to be analysed.
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AM-741 -
Com-Power Corporation
The 41 inch Monopole antenna is required for making electric field emission measurements below 60 MHz per Military standards (MIL-STD-461) and FAA (DO-160) specifications. This antenna is for emissions measurements only. It cannot be used for transmitting. The Active Monopole antenna is generally used in a shielded room or in a screen room, with the equipment under test (EUT) placed on a metal ground plane. The 41 inch rod and the ground plane behave electrically as though a mirror image of the rod were located below the ground, and the ground removed. Since the stainless steel plate does not have enough surface area to mirror the entire 41 inch rod, it is bonded to the surrounding ground plane during use. The AM-741 is battery powered to prevent measurement errors that maybe caused by external power cables. The ANSI equivalent capacitance substitution (ECSM) method is the recommended method for calibrating AM-741 monopole antenna. The individual calibration data will be included with each antenna.
