Another 'Radio threat' comes
The negative LED Lights impact on HF radio reception: LED light bulb disturbancesWatch this video on YouTube Video by Thilo Kootz, DL9KCE
28 MHz intruder problem worsens
The October issue of the IARU Monitoring System (IARUMS) newsletter reports that the intruder situation on 28 MHz is getting worse. It says “We found much CB-like traffic (AM, FM, SSB) between 28 and 29.7 MHz in September and again in October 2011. Origins: Europe, Brazil, Far East. Besides that we observed, that the band…
Russian taxi-interference on 28 MHz
Uli, DJ9KR reports on efforts to resolve the problem of taxi drivers in the Russian Federation using 28 MHz FM. On the IARU region 1 website his writes: Dear fellow Intruder Busters, More than a year ago (24 October 2010) I asked the Headquarters of SRR, Box 88, 119311 Moscow (attention Roman R. Thomas RZ3AA,…
CQWWDX Contest 2011 (Phone) US1i QRM
Outstanding QRM (Splatters) from Ukraine Contest Station US1I during the CQWWDX Contest 2011 (Phone). From almost 14185 KHz to 14210 KHz in 14200 Central Frequency (> 25 KHz !!!).
LED lighting equipment may cause severe electromagnetic disturbances
More an more LED lights are entering the market and are being used by radio amateur and their neighbors. There is a limit to maximum disturbance voltage on the mains port defined in EN55015, which is equivalent to the protection of EN55022, however it is not fully implemented within the EU due to a transition…