http://www.radioworld.com/article/weiner-fcc-must-get-back-into-inspection-biz-/223133
Strongly agree that IBOC has been a dismal failure and should be removed from service in the AM band. The other recommendation that should be strongly considered is the enforcement of FCC Part 15 rules. Interference levels have more than tripled here in just the past few years. Much of it caused by poorly designed "Wall Wart" switching type power supplies.
In the 1950's through the 1990's, the vast majority of household devices incorporated a power supply into the cabinet of the device that performed the function of converting AC power into DC power. Nowdays, such things are very rare. The vast majority of devices use "wall wart" switching power supplies, many of these are huge radiators of interference in the AM Band, often at great distances.
Even ham transceivers, which used to incorporate DC supplies now rely on external DC supplies entirely. It reduces the overall cost and size of the product, but the trade off is a lot more interference. The device can be FCC certified, but often the switching power supply is not included in that evaluation.
-- 73, Les Rayburn, N1LF Maylene, AL EM63 Member NRC, IRCA, & Medium Wave DX Circle Former CPC Chairman for NRC/IRCA SDR-IQ,Funcube Pro, Wellbrooke ALA-1530+ loop, LF Engineering Active Whips, Quantum Phaser, Kiwa Loop, Palstar MW Pre-Selector _______________________________________________ IRCA mailing list IRCA@hard-core-dx.com http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@hard-core-dx.com
