Ruggedized Software Defined Radio Solutions

Pixus Technologies (Waterloo, Ontario) has developed ruggedized versions of commercial software defined radios. The RX310, the first in the series of small form factor ruggedized devices, utilizes the USRP software defined radios from Ettus Research, a National Instruments brand. The weatherproof enclosure features IP67 sealing for water and dust ingress. It is also designed for MIL-STD-810 for shock/vibration and MIL-STD-461 for EMI. The RX310 contains two extended bandwidth daughterboard slots covering 10 MHz – 6 GHz with up to 160 MHz of baseband bandwidth, dual 1/10 GigE high-speed interfaces, and a large user-programmable Kintex-7 FPGA. The unit is 302mm wide × 400mm long × 98mm tall with conduction-cooled fins for heat dissipation.

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Solid State Power Amplifier Module

Comtech PST (Melville, NY) recently introduced new high-power density solid state RF modules. The Model BME2969-300 solid state power amplifier has a frequency range of 2000 to 6000 MHz; saturated power output (Psat) of 300 Watts; output power into 2.0:1 VSWR of 200 Wats Min; RF input range of -10 to 0 dBm typical; internal DC to DC converters; an operating temperature range of -40 to +70°C baseplate (external heatsink required); and built-in-test.

These integrated designs are suitable for use in communication, electronic warfare, and radar transmitter systems where space, cooling, and power are limited.

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High-Q Capacitors

Passive Plus, Inc. (PPI) (Huntington, NY) now offers a line of hi-Q capacitors available in 5 larger case sizes:

2225 C/P series is .220” × .250” with a value range of 0.5pF – 2700pF and WVDC: 3600V. 38/38 C/P series measures .380” × .380” with a value range of 0.5pF – 5100pF and WVDC: 7200V. 6040 C series measures .600” × .400” with a value range of 1pF – 6800pF and WVDC: 8000V. The 7676 C series measures .760” × .760” with a value range of 1pF – 20000pF and WVDC:8000V. And the 1313 C series measures 1.30” x 1.30” with a value range of 200pF - .12μF and WVDC:10000V.

Specifically produced for high power/high frequency requirements, these products are available in surface mount or leaded configurations that are 100% RoHS compliant and also available in a non-magnetic termination.

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Bubble Pressure Tensiometer Mobile Device

KRÜSS Scientific Instruments, Inc. (Charlotte, NC) has a new solution for the quality control of industrial baths that contain cleaning or wetting agents. The new Bubble Pressure Tensiometer - BPT Mobile is an instrument for determining the surfactant content by investigating the dynamic surface tension (SFT) of a solution. This mobile solution works independently from a computer and provides results within a few seconds.

Whether an industrial bath obtains the required cleaning or wetting effect is dependent on the concentration of free surfactants, which decreases over time due to the contamination of the bath or adsorption on the workpiece. The dynamic SFT reacts very sensitively to changes of the surfactant concentration which then allows the BPT Mobile to make bubble pressure measurements that accurately reflect the bath's quality.

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Flight Crew Safety Testing Data Recorders

DTS (Seal Beach, CA) has been awarded two SBIR contracts to create custom data recorders for NASA and the US Air Force (USAF) that will be used for flight crew safety testing. The DTS test instrumentation will capture impact, speed and rotational forces that crew members may be exposed to during take-off, landing or ejection seat emergencies. The NASA system will be engineered to measure lower-level forces over a longer time period that astronauts may experience during lengthy launch and re-entry periods. The USAF system will be designed to capture high-speed data including head and neck forces that pilots may be subjected to in the case of an emergency ejection exit.

Each system will include six built-in sensors. Due to strict space and weight constraints onboard capsules and planes, the recorders need to be miniature in size and may even be embedded on or in crew helmets. The systems also need to be rugged to withstand intense forces, as well as reliable to deliver the critical test data for analysis. The data will be used to develop new technology such as protective gear, restraints, seating and more to advance crew safety.

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