Kits Help Build Cable Assemblies
For difficult-to-reach and mobile installations, the LMR-SW coaxial interconnection consists of low loss, seamless 50-Ω cable with field-installable Type N and 7-16 DIN. The cables and connectors are also shipped with all the tools needed to install the connectors and all required installation accessories. The cable is formed of a copper-clad aluminum center conductor, a closed cell polyethylene foam dielectric, a seamless aluminum outer conductor, and a black polyethylene jacket. The seamless outer conductor eliminates pin-holes and weld failure. The hand or drill-mounted preparation tools enable quick and reliable connector attachments, with passive intermodulation (PIM) performance of better than -170 dBc. The assemblies are waterproof to IP-67 standards. The cables are available in two sizes: Model LMR-SW396 has an outside diameter of 0.450 in., with loss of 2.06 dB/ft at 450 MHz and 4.41 dB at 1.8 GHz. Model LMR-SW540 has an outside diameter of 0.610 in., with loss of 1.46 dB/ft. at 450 MHz and 3.06 dB/ft. at 1.8 GHz. The cables can be mated with a variety of different connector types, including Type N and 716 DIN male and female connectors.
Times Microwave Systems
358 Hall Ave., Wallingford, CT 06492; (203) 949-8400, FAX: (203) 949-8423,
Signal Analyzer Extends Past 325 GHz
The PXA signal analyzer is now available for base frequencies from 3 Hz to 50 GHz and to 325 GHz and beyond when using external mixers. Suitable for advanced radar, surveillance, and wireless communications systems, the analyzer can also operate at frequencies in support of radio astronomy. Its Noise Floor Extension (NFE) technology helps expand the dynamic range by removing distortion that can limit the detection of low-level signals, even in the presence of high-level signals. The instrument achieves a displayed average noise level (DANL) of -138 dBm at 50 GHz and can improve that number by another 6 dB using the NFE capability. It offers analysis bandwidth as wide as 140 MHz with close-in phase noise of -110 dBc/Hz offset 10 kHz from the carrier, with a third-order intercept of +13 dBm at 50 GHz. The analyzer operates with the company’s M1970V/W waveguide harmonic mixers for performance to 110 GHz and with third-party mixers for frequencies to 325 GHz and higher. P&A: $91,000 for 50-GHz model.
5301 Stevens Creek Blvd., Santa Clara, CA 95051; (877) 424-4536, (408) 345-8886,
FAX: (408) 345-8474, Internet:
System Tests Per MIL-STD-461
The model AS18027 AR System is an automated system for performing radiated electromagnetic (EM) susceptibility testing from 1 to 18 GHz. It can produce EM fields to 50 V/m at distances to 1 m over its full frequency range, per the requirements of the MIL-STD-461 test standard. The system includes all of the hardware needed to perform the measurements, including solid-state amplification, a broadband commercial signal generator, and control equipment. The equipment is housed in a compact, electromagnetic-interference (EMI) shielded rack designed to be kept inside the chamber to minimize cable losses. In addition, the SW1007 electromagnetic-compatibility (EMC) test software is included to automate the measurements on the included desktop or laptop personal computer (PC). The system also includes high-gain horn antennas, antenna tripods, and coaxial and fiber-optic cables required for making the measurements.
AR RF/Microwave Instrumentation
160 School House Rd. Souderton, PA 18964; (215) 723-8181, (800) 933-8181
GaN Amp Boosts 20 MHz To 6 GHz
Model 8790 is a broadband amplifier that is as well suited for jamming systems and counter improvised-explosive-device (counter-IED) systems as it is for commercial communications networks. Based on gallium nitride (GaN) device technology, the compact amplifier delivers saturated output power of 10 W from 20 MHz to 6 GHz with minimum efficiency of 15%.
It measures just 65 x 120 x 25 mm and weighs less than 250 g. Better still, it compliments other counter-IED amplifiers manufactured by the company.
Amplifier Technology Ltd.
Unit 5, Easter Court, Westerleigh Business Park, Yate, Bristol, BS37 5YS; +44 (0) 8700 869 941,
Flexible Power Supplies Are Programmable
Programmable power supplies in the Sorensen XG 1500 Series are 1500-W units suitable for a variety of applications. They are available in a number of different versions, with output voltages ranging from 8 V (187.5 A maximum output current) to 600 V (2.5 A maximum output current). The XG Series is available with standard USB, RS-232/RS-485 interfaces. It is also available with optional LXI Ethernet, GPIB IEEE 488.2 and isolated analog interfaces. The XG 1500 can also be programmed by varying an input resistance, with the full scale resistance being any value between 2 kΩ and 10 kΩ. As many as four XG 1500 units can be connected in parallel for more output current. For outputs higher than 600 V, two units can be connected in series. The XG 1500 lets users select whatever input voltage range they need from 0 to 2 V to 0 to 10 V. The supplies are programmed by SCPI commands and can run as many as 1000 steps per second.
Ametek Programmable Power
9250 Brown Deer Road, San Diego, CA 92121; (858) 450-0085, FAX: (858) 458-0267
Capacitors Handle Aerospace Applications
The T16 series of electrolytic capacitors are tantalum-cased wet tantalum capacitors with glass-to-tantalum hermetic seals designed for use in the most demanding environments. They are rated for reverse voltage of 1.5 V at +85°C and can withstand vibration levels to 20 g’s with sinewave testing and 27.7 g’s with random vibration test signals. They are available with capacitances from 150 to 680 µF in the D case code, and capacitance tolerances of ±20% standard at 120 Hz and + 25 °C, with tolerances of ± 10% and ± 5% also available. The wet tantalum capacitors are ideal for pulsed power applications in power supplies and space and avionics equipment. They are designed for operating temperatures from -55 to + 85°C, and to +125°C with voltage derating. They provide low ESR to 0.70 Ω at 120 Hz and +25°C. They have standard tin/lead terminations but are also available with RoHS-compliant 100% tin terminations.
Vishay Intertechnology, Inc.
One Greenwich Place, Shelton, CT 06484; (402) 563-6866, FAX: (402) 563-6296
ECM Transceivers Reach To 18 GHz
Customizable integrated electronic-countermeasures (ECM) transceiver subsystems are available for frequency ranges of 2 to 18 GHz and 6 to 18 GHz. Suitable for jammer or decoy applications, these integrated subsystems feature complementary synchronous upconversion and downconversion using the same local oscillators (LOs). The incorporate high-speed detector-log-video-amplifier (DLVA) monitoring and achieve an instantaneous dynamic range of typically 55 dB. The subsystems also provide intermediate-frequency (IF) outputs for processing by digital RF memories (DRFMs) or digital receivers. The ECM transceiver subsystems offer 30-dB typical signal attenuation in 0.5-dB steps and high-speed 35-ns band switching with 65-dB typical switch isolation. Harmonics levels are typically -45 dBc, while receiver gain is typically 13 dB, and receiver noise figure is typically 13.5 dB. The transceivers can handle both pulsed or continuous-wave (CW) signals.
DoD AIMS Office Approves IFF Test Set
The APM-424(V)5 Identify-Friend-Or-Foe (IFF) portable test set has received an Approved for Test notification from the US Department of Defense (DoD) AIMS International Program Office. This authorizes IFF end users and customers to use the APM-424(V)5 when integrating and validating the performance of their IFF platforms. The APM-424(V)5 is a portable MK12A Mode 5 Level 2 test set with KIV-77 support. It replaces the AN/APM-424(V)3, TS-4530, and TS-4530-1, although Mode 5 upgrade kits are available for existing test sets. IFF Mode 5 is an identification system that distinguishes friendly aircraft, vehicles, or forces, and determines their bearing and range from the interrogator. As Mode 5 platforms are deployed, new transponders and interrogators require initial commissioning tests followed by routine pre-mission tests. The APM-424(V)5 tests the latest development in secure IFF Mode 5. Levels 1 and 2 are crypto-secure with enhanced encryption, spread spectrum, modulation, and time of day authentication.
35 South Service Road, Plainview, NY 11803-4193; (516) 694-6700, FAX: (516) 694-4823