- Buyers Guide
300 W Power Supply
The NT301 series compact, multiple output, 300 W power supply has a 3.3 V high current main output and active input power factor correction (PFC). The active PFC circuitry provides compliance with EN61000-3-2 and accommodates a wide-input voltage range of 90 to 264 V DC for global applications. The PFC input stage is followed by a two-transistor forward converter that provides a proven architecture for high reliability requirements. All outputs are fully isolated and regulated. Standard features include power fail warning, remote inhibit and remote sense. Price: from $370 (100).
C&D Technologies Inc., Power Electronics Division, Tucson, AZ (800) 547-2537.
SiGe Powered GPS Receiver
The highly integrated Global Positioning System (GPS) receiver features the company’s silicon germanium (SiGe) process technology, enabling the direct conversion of RF signals to digital information and eliminating the need for IF support circuitry such as mixers, oscillators and filters. The GPS receiver has 12 parallel processing channels which simultaneously track and process GPS signals from up to 12 satellites, improving the performance and proliferation of satellite navigation technology in automobile, marine and recreational applications. The system also includes a PowerPC 401 embedded processor and comprehensive support features such as memory, a GPS reference crystal, connectors and a real-time clock. Size: 40 mm x 66 mm.
IBM Microelectronics Division, Hopewell Junction, NY (914) 499-1900.
0.15 - 3.0 GHz Multiplier Subsystem
The model SYSX20-3A integrated three-stage multiplier subsystem is suitable for receiver LO generation using a reference VHF stabilized or voltage-tuned input source. Industry standard size amplifier and multiplier modules are used internally to make the unit easily modified for custom frequencies with 55 dBc spurious levels.
MITEQ, Hauppauge, NY (516) 439-9423.
Radio Modem Modules
The SLM-C module for the RF9600 series radio modems provides two analog inputs and two analog outputs. The unit can be configured for 0 to 5 V input or 0 to 20 mA input or configured as outputs for the same ranges. The module can be used in remote monitoring operations, sensing machine current changes, control loop circuitry and temperature monitoring.
RF Neulink, a division of RF Industries, San Diego, CA (800) 233-1728 or 858) 549-6340.
32 x 32 Coaxial Matrix
The model 10840 coaxial matrix offers a bandwidth of 5 to 20 MHz that covers the HF and VHF bands as well as the IF frequencies of 70 to 160 MHz. The unit provides switching configurations from 32 inputs to 32 outputs in any combination under RS-232 or IEEE-488 control, and features unity gain at full fanout, enabling a high degree of versatility. Speed setup time (up to 40 stored switching configurations) may be recalled. The matrix also features crosspoint verification, front panel keyboard control and liquid crystal display.
Matrix Systems Corp., Calabasas, CA (818) 222-2301.
Coaxial Switch Matrix
The model 2104 coaxial switch matrix is configured with up to four single-pole, 10-throw switch assemblies. Designed specifically for automatic testing equipment, environmental/laboratory test equipment and programmable patch panel/interconnect applications, the switch matrix provides a solid-state controller with a front panel liquid crystal display and keypad for manual override and two remote interfaces (RS-232 and IEEE-488 general-purpose interface bus). Impedance is 50 W, switching speed is 20 ms and input power is 85 to 264 V AC (47 to 440 Hz). Operating temperature is 0° to +50°C. The switch matrix measures 1.75" x 19.0" x 20.0" with the four switches mounted externally at the rear.
Dow-Key Microwave Corp., Ventura, CA (805) 650-0260.