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![]() "WA3MOJ" wrote in message ... In article , Mike Coslo says... I'm not sure which group you're posting from Steve, so I didn't trim the groups. Once I know, I'll trim 'em out. cb and shortwave don't need all this stuff (though shortwave listeners should be VERY concerned about BPL. Steveo wrote: "Bill Sohl" wrote: ITU treaty is goofed up too? Cheers, Bill K2UNK What about that BPL thing, I know their using it in Manasass, anyone hear how good or bad it is to HF comms? Updates? FEMA has expressed "grave concerns" DERA has noted: "DERA concludes that serious interference to and disruption of critical emergency communications systems in several licensed services throughout North America would almost certainly result from BPL implementation as currently proposed," DERA's comments said. Endorsing FEMA's earlier remarks, DERA said proposed BPL systems don't just pose a risk of interference, they've already been shown to "actually cause harmful interference to licensed radio services." AMRAD has provided data that suggests that a Operating Ham within a half mile radius will likely knock out BPL. The service is simply too susceptable to interference. from ARRL site: AMRAD found that at a distance of just over one-half mile, data transfer ceased in the face of a 100-W signal on 3980 kHz from a mobile transmitter. Adjacent to the test property, AMRAD said data transfer ceased in all but one instance at a transmitter power of just 4 W in the BPL operating band of from 4 to 21 MHz. back to me: So BPL is a big source of interference to devices it isn't allowed to interfere with, and it looks like a QRP or CB rig with a good antenna can knock it out, but certainly a 100 watt rig will take BPL internet out. As I figured, the BPL internet access concept is going down fast. - Mike KB3EIA - Will it wipe out my 2 meter handheld? Yes, it will. Dee D. Flint, N8UZE |
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