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#1
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Nope. As soon as the HF users reach a certain level of decline,
the FCC will auction-off the HF band for use in WI-FI local broadband networking, telling the hams to enjoy "2 meters and down." Count on it. tianli wrote: I don't know about MW, but SW has been a dinoaur in Western countries for decades now...and I wouldn't have it any other way. That's precisely what's kept it interesting all these years. I agree! Less flame-thrower interference also. Maybe one day we will experience the bands as they were before the cold war and proliferation of high powered SW transmitters. |
#2
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DS - The so called "Greater Good" ~ RHF
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#3
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![]() "David Stinson" wrote in message news:C8gEd.965$SS6.207@trnddc07... Nope. As soon as the HF users reach a certain level of decline, the FCC will auction-off the HF band for use in WI-FI local broadband networking, telling the hams to enjoy "2 meters and down." Count on it. Parts of the HF spectrum will always be protected for military and emergency communications. The remainder isn't very much spectrum for broadband purposes, especially considering the high noise levels and possibility of interference from just about anywhere in the world. Building compact, efficent antennas is a real problem at HF, and using higher power with inefficent antennas hardly seems like a good solution for a battery powered portable.. Frank Dresser |
#4
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Frank Dresser wrote:
"David Stinson" wrote in message news:C8gEd.965$SS6.207@trnddc07... Nope. As soon as the HF users reach a certain level of decline, the FCC will auction-off the HF band for use in WI-FI local broadband networking, telling the hams to enjoy "2 meters and down." Count on it. Parts of the HF spectrum will always be protected for military and emergency communications. The remainder isn't very much spectrum for broadband purposes, especially considering the high noise levels and possibility of interference from just about anywhere in the world. Building compact, efficent antennas is a real problem at HF, and using higher power with inefficent antennas hardly seems like a good solution for a battery powered portable.. Indeed, Frank. I wonder if many of those people who would propose to use HF as if was the new frontier of digital communications know exactly what they are dealing with. HF is an unruly beast, where sections can be entirely shut down depending on solar activity, or a small signal can sometimes be propagated across the world. In addition, it has nowhere near the bandwidth capacity of the higher frequencies. And finally, the ham sections are such a small portion of the HF spectrum, that it would not make much difference if they went away or stayed. Most modern "wireless" apps *need* the characteristics of GHz + frequencies. - Mike KB3EIA - |
#5
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Mike Coslo wrote:
Frank Dresser wrote: "David Stinson" wrote in message news:C8gEd.965$SS6.207@trnddc07... Nope. As soon as the HF users reach a certain level of decline, the FCC will auction-off the HF band for use in WI-FI local broadband networking, telling the hams to enjoy "2 meters and down." Count on it. Parts of the HF spectrum will always be protected for military and emergency communications. The remainder isn't very much spectrum for broadband purposes, especially considering the high noise levels and possibility of interference from just about anywhere in the world. Building compact, efficent antennas is a real problem at HF, and using higher power with inefficent antennas hardly seems like a good solution for a battery powered portable.. Indeed, Frank. I wonder if many of those people who would propose to use HF as if was the new frontier of digital communications know exactly what they are dealing with. About the only feature of HF vs UHF or microwave is that distant nodes or stations can directly talk to each other without supporting infrastructure (phone lines or Internet). Same thing that attracts ham radio operators. Though the fact that a pair of users will hog the same bandwidth world-wide is not such a hot feature.... Unless digital shortwave broadcasting is desired, forget it. And how well will digital handle QSB and QRM and QRN? Assuming the modulation method is designed to cope with such... HF is an unruly beast, where sections can be entirely shut down depending on solar activity, or a small signal can sometimes be propagated across the world. In addition, it has nowhere near the bandwidth capacity of the higher frequencies. And finally, the ham sections are such a small portion of the HF spectrum, that it would not make much difference if they went away or stayed. Most modern "wireless" apps *need* the characteristics of GHz + frequencies. - Mike KB3EIA - |
#6
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robert casey wrote:
Mike Coslo wrote: Frank Dresser wrote: "David Stinson" wrote in message news:C8gEd.965$SS6.207@trnddc07... Nope. As soon as the HF users reach a certain level of decline, the FCC will auction-off the HF band for use in WI-FI local broadband networking, telling the hams to enjoy "2 meters and down." Count on it. Parts of the HF spectrum will always be protected for military and emergency communications. The remainder isn't very much spectrum for broadband purposes, especially considering the high noise levels and possibility of interference from just about anywhere in the world. Building compact, efficent antennas is a real problem at HF, and using higher power with inefficent antennas hardly seems like a good solution for a battery powered portable.. Indeed, Frank. I wonder if many of those people who would propose to use HF as if was the new frontier of digital communications know exactly what they are dealing with. About the only feature of HF vs UHF or microwave is that distant nodes or stations can directly talk to each other without supporting infrastructure (phone lines or Internet). Same thing that attracts ham radio operators. Though the fact that a pair of users will hog the same bandwidth world-wide is not such a hot feature.... Unless digital shortwave broadcasting is desired, forget it. And how well will digital handle QSB and QRM and QRN? Assuming the modulation method is designed to cope with such... Well, digital error checking can take care of that..... again and again and again and again, until it works, or more likely, times out. Great, as long as you don't mind a slow connection. Of course, maybe that is why BPL is at DSL speeds instead of cable modem speeds. - Mike KB3EIA - |
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