Showing results: 46 - 54 of 54 items found.
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777960-01 -
NI
68-Pin Female SCSI to Female BNC and Screw Terminal, DIN Rail, Desktop Mount, Shielded Terminal Block - The BNC-2120 can be used with various NI multifunction I/O and analog output devices. The BNC-2120 simplifies the connection of analog signals, some digital signals, and two user-defined connections to the data acquisition device while maintaining the integrity of your measurements with a shielded enclosure. It also features a function generator, quadrature encoder, and cold junction compensation for thermocouple measurements. The BNC-2120 includes a DIN Rail and a desktop mount option.
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A.H.Systems, Inc.
A.H. Systems' offers 13 Log Periodic Antennas. Each antenna is lightweight, compact, rugged and has been manufactured to ensure maximum gain, low VSWR and high power handling capabilities. Whether testing inside a shielded enclosure or outdoors, the antennas will display efficient performance characteristics through the broad frequency range of 80 MHz to 7GHz.
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782536-01 -
NI
68-Pin Female Screw Terminal to 68-Pin Female D-SUB, DIN-Rail, Shielded I/O Connector Terminal Block - The SCB-68A provides a shielded I/O connection for interfacing I/O signals to plug-in data acquisition devices with 68-pin connectors. This Terminal Block combines with shield cables to provide low-noise signal termination. The SCB-68A incorporates a completely redesigned mechanical enclosure with a magnetic removable lid, DIN-rail mount compatibility, and a resettable fuse. It is compatible with single- and dual-connector Multifunction I/O with 68-pin connectors. The SCB-68A also includes two general-purpose breadboard areas and an onboard cold-junction compensation sensor.
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dbSAFE DUO -
DVTest Inc.
RF enclosures are now a necessity for testing wireless devices. The dbSAFE DUO offers unmatched isolation in its class; up to 100 dB* from 300 MHz to 18 GHz. The dbSAFE DUO shielded box has been engineered from the ground up to provide superior RF isolation and performance while being cost-effective. The dbSAFE DUO can be designed and manufactured to almost any size and dimensions.
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dbSAFE RME -
DVTest Inc.
RF enclosures are now a necessity for testing wireless devices. The rackmount dbSAFE RME offers unmatched isolation in its class; up to 100 dB* from 300 MHz to 18 GHz. The dbSAFE RME has been engineered from the ground up to provide superior RF isolation and performance while being cost-effective. This premium isolation shielded box can be designed and manufactured to almost any size and dimensions.
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dbGUARD -
DVTest Inc.
The dbGUARD provides up to 90 dB isolation from 300 MHz to 18 GHz. The IASG (Inverted Asymmetric Squarewave Gasket) design eliminates any leakage along the perimeter of the RF enclosure. This makes the dbGUARD conducive to testing all wireless technologies including 5G/LTE, Wi-Fi, Bluetooth, ZigBee, WiMAX, etc. The interior cavity is finished with a next-generation RF absorptive coating similar to what is found in stealth technology. This allows for positioning the DUT in the shielded box without affecting attenuation caused by reflections.
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Keystone Compliance
Shielding effectiveness testing determines the ability of material to reduce the electromagnetic field in a space by blocking the field with barriers made of conductive and/or magnetic materials. Shielding effectiveness testing can be applied to a broad range of radio frequencies. Electromagnetic Shielding is typically applied to both enclosures and cables. The shielding can reduce the coupling or radio waves, electromagnetic fields and electrostatic fields. The amount of reduction can vary based on the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest. Also impacting the effectiveness of the shielding is the size, shape and orientation or apertures in a shield to an incident electromagnetic field. Electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as RF Shielding.
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SG1000B/PR1000A -
Praxsym
The SG1000 Signal Generator and PR1000A Preamplifier have been designed to simplify the measurement of shielding integrity in a shielded enclosure. When coupled with a high stability spectrum analyzer and an appropriate selection of test antennas, the SG1000/PR1000A combination can measure shielding effectiveness at all of the NSA 94-106 (supersedes NSA 65-6) defined test frequencies from 1 kHz to 10 GHz.The PR1000A amplifies the received signal from the test antenna and overcomes the high noise figure of the companion test receiver or spectrum analyzer. The PR1000A will ensure that the system noise figure will be less than 4.5 dB at all test frequencies from 1 kHz to 10 GHz. When used with a spectrum analyzer measurement bandwidth of 100 Hz, the system exhibits a sensitivity of -150 dBm at the test antenna output.To overcome high cable loss between the test antenna and the PR1000A assembly at 10 GHz, a remote low noise pre-amplifier (Praxsym PN 310-010091-001) is mounted directly onto the 10 GHz antenna.
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VF-121 -
National RF, Inc
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.
