By Ken Javor Totally anecdotal, but this just happened to me. My wife uses a powered wheelchair. A very high end, high quality chair. We were on vacation driving north and had just crossed the 45th parallel in the state of Michigan. The 45th parallel anywhere is halfway between the equator and the North Pole. In Michigan it’s also halfway to nowhere, and it was there my wife’s … [Read more...]
Russian-Detected Signal Likely Terrestrial Interference
(August 31, 2016) According to The Guardian, "The team of scientists manning a huge radio telescope high in the Caucasus region have said that the signal they believed at first to have originated from distant star HD164595 was most likely the result of 'terrestrial interference'." "The Ratan-600, a telescope located in Zelenchukskaya in the Caucasus mountains, surveys as much … [Read more...]
In-House Verification of EMI Test Equipment
SAE International has made available the AIR6236A document. This AIR provides guidance to the EMI test facility on how to check performance of the following types of EMI test equipment: current probe, Line Impedance Stabilization Network (LISN), directional coupler, attenuator, cable loss, low noise preamplifier, rod antenna base, and passive antennas. All performance checks … [Read more...]
New Line of EMC Antennas from 1-18 GHz
MVG's new EH118 EMC Dual Ridge Horn Antenna is the first in a new line of antennas for radiated emissions testing. The EH118 is applicable for commercial, military and automotive test standards and will include applicable calibrations. It includes a biconical antenna, a log-periodic array, a log/biconical hybrid and several dual-ridge horns to cover various frequency bands … [Read more...]
New 3.2 / 7.5 GHz Spectrum Analyzer Released
Rigol Technologies recently announced their new DSA832E 3.2 GHz spectrum analyzer, based on the small DSA800-series form factor. The analyzer is ideal for design and development implementing Wi-Fi, Bluetooth, and other RF standards. The 7.5 GHz instrument enables engineers to investigate the 3rd harmonic of all of their critical 2.4 GHz applications while the 3.2 GHz models … [Read more...]
FCC Fines Radio Operator for Malicious Interference
(August 2, 2016) Recently the FCC imposed a penalty of $25,000 against William F. Crowell for operating an amateur station in violation of Section 333 of the Communications Act and Sections 97.101(d) and 97.113(a)(4) of the Commission’s rules, by intentionally causing interference to other amateur radio operators and transmitting prohibited communications, including music. The … [Read more...]
New Stealth Technology Makes Russian Electronic Equipment Undetectable
(August 5, 2016) Russian scientists have developed a new ferrite-based fabric that promises to have the ability to make Russian military hardware much harder to detect for enemy electronic warfare systems. According to Sputnik News, "The new lightweight and highly flexible fabric, developed by the Rostec subsidiary JSC Ruselectronics, can protect the electronic equipment … [Read more...]
Radio Interference Caused by 1967 Solar Storm Nearly Started Nuclear War
(August 9, 2016) Business Insider reported that a colossal solar burst caused radio interference in 1967 that almost started a nuclear war. The "Great [Solar] Storm" of May 1967 caused widespread radio communications blackouts, and was seen as potential jamming from Soviet Russia. The Air Weather Service (AWS) — a relatively new branch of the Air Force — had warned military … [Read more...]
EMC Standards Package
This EMC Standards package includes standards that address the unintentional generation, propagation, and reception of electromagnetic energy, the associated unwanted effects, and the correct operation of different equipment involving electromagnetic phenomena in their operation. In the package: 220+ active, draft, and archived IEEE and ANSI EMC related standards; robust … [Read more...]
Isotropic Electric Field Probe for RF Safety Testing
EMC Test Design, LLC has released a new isotropic electric field probe with shaped frequency response, PI-SH (ICNIRP or FCC). The PI-SH meets the ICNIRP or FCC RF safety standards for occupational and general public exposure limit, and its meter readings are shown in % of the STD - standard reference level, eliminating the need to know the source frequency. Probe output is … [Read more...]
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