In less than a year, my noise level in my concrete and steel tower has gone from below -110dbm (less than S1) to S7 to S9 on the medium waves.
YouTube snippet - http://youtu.be/a3B_7CsjRGc I guess this is the blight of our digital age... wireless TV's, wireless DVD players, wireless printers, internet over the power line - all with crappy switching power supplies made in China with little or no shielding. (A year ago) Our local dx group worked with our local electrical utility and telecom industry regulator to isolate and eliminate an interference source near a local park that was so powerful, it was easily audible under a 50 kw local. Each agency spent a few hours snooping around the neighborhood with equipment easily from the late 70's and totally unsuited to noise sleuthing - finding nothing. We isolated it to a couple of power poles, one of which was feeding an apartment building - the likely culprit a Chinese made stair-master with a power supply that was easily radiating 15 to 20 watts of RF on the long, medium and shortwaves. In the year or so since we did that failed attempt at eliminating a noise source, similar broad spectrum noises have appeared in a variety of neighborhoods in Victoria. Bottom line - there is no commitment to fixing the problem because, after all, there is nothing on AM or SW anymore right? Will be interesting to see what happens when all the digital interference that we are generating starts to interfere with this things we really enjoy! Colin Newell - Victoria area DXer and radio enthusiast _______________________________________________ IRCA mailing list [email protected] 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: [email protected]
