Recent updates to IEC EMC standards published by the IEC: IEC 62040-2:2016 PRV, Ed. 3.0 - (9/2/16) - Uninterruptible power systems (UPS) - Part 2: Electromagnetic compatibility (EMC) requirements CISPR 25:2016 PRV, Ed. 4.0 - (9/2/16) - Vehicles, boats and internal combustion engines - Radio disturbance characteristics - Limits and methods of measurement for … [Read more...]
Antennas
- Free PDF Download: How to Select an EMC Antenna Type by Test Standard by AH Systems
- Free PDF Download: The 10 Factors You Need to Consider When Selecting an EMC Antennaby AH Systems
- Free PDF Download: AK-571-4 Antenna Kit, Your Inexpensive Solution to Broadband Applications by AH Systemes
- Free PDF Download: RF Conversion Formulas by AH Systems
- Free PDF Download: AH Systems Product Catalog by AH Systems
New Low-Cost Near Field Probe Announced
RF Explorer has recently announced a new addition to their accessories for the RF Explorer spectrum analyzer. The new model, RFEAN25, is a very sensitive H-loop near field antenna. Lab testing shows the RFEAN25 is at least 10dB more sensitive in the range 20-6000MHz than other H-loop options in the market, at a much lower cost. A high quality semi-flexible RF cable is … [Read more...]
New Electric Field Probe Announced
MPB Electronics has announced their new isotropic electric field probe with a frequency range of 10 MHz to 3 GHz. The fiberoptically-coupled probe can measure peak, average, RMS, and channel power with a dynamic range of 85 dB (typical) at 500 MHz. Linearity is less than 0.5 dB at 500 MHz from 0.1 to 100 V/m. Correction factors are stored in an internal EEPROM. The long-life … [Read more...]
World’s Largest Radio Telescope in Service
(September 25, 2016) Five-hundred-meter Aperture Spherical Telescope (FAST) is the most advanced radio telescope ever built by humans with a dish of 500 m across, and is now the largest filled-in, single-dish radio telescope in the world. Located in remote mountainous region in southwestern China to ensure the area would be free from radio interference, the radio telescope … [Read more...]
Mystery Signal Disrupts Singapore Train
Singapore’s Today Online reported that the "Land Transport Authority (LTA) and SMRT have not been able to determine the source that caused the “intermittent loss of signalling communications” on the Circle Line (CCL) late last month". This has led to several days of train service delays, and continues two weeks after the LTA began investigations. "On Aug 29, persistent … [Read more...]
Blog Post: Budget SDR-Based Spectrum Analyzer
Kenneth Wyatt describes a low cost software defined radio (SDR) based spectrum analyzer that costs just $200. The analyzer is perfectly suited for general EMI troubleshooting. The free software applications are PC-based. To read the full post, click here. … [Read more...]
Smart Wi-Fi Antennas Reduce Co-Channel Interference
When there are multiple Wi-Fi access points (APs) in the same wireless channel, they interfere with each other, reducing performance. Today's next-gen 802.11ac APs have fewer channels, which means more APs need to use the same channel. And this means more co-channel interference. With the next generation technology that we know is coming in the foreseeable future, there … [Read more...]
New Detection Device Automates Monitoring and Analysis of RF Interference
Spirent Communications has introduced its new GSS200D Interference Detection and Analysis product. The GSS200D was developed as part of Spirent’s partnership with Nottingham Scientific Limited. The GSS200D solution comprises field-based hardware and a secure data server for automatic capture and analysis of global navigation satellite system (GNSS) radio frequency … [Read more...]
New Low Cost Spectrum Analyzers Announced
Rigol Technologies has recently announced the new budget DSA700-series spectrum analyzers for hobbyists or companies on a budget that don’t require analysis above 1 GHz. The model DSA705 tunes 100 kHz to 500 MHz and the model DSA710 from 100 kHz to 1 GHz. Both use all-digital IF technology and are the same form factor as the popular DSA800-series. Primary specifications … [Read more...]
FCC Field Offices to Close in January
(Sept. 14, 2016) According to Radioworld.com, "the Federal Communications Commission is proceeding with its plan to eliminate field staff and close many offices." Meanwhile, few details have been made public about the creation of emergency “Tiger Teams” to handle special enforcement situations and some observers are skeptical that the approach will be effective. January 2017 … [Read more...]
- « Previous Page
- 1
- …
- 7
- 8
- 9
- 10
- 11
- …
- 56
- Next Page »