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#1
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If anyone finds any articles or links that they consider flawed or in
error, please email me at gfreport at hotmail dot com and provide correct information, a link would be very nice. In the RFI world there are often contradictory ways that achieve the same or very similar levels of reduction. While I intend the stopRFI group to mainly deal with SW, 1.8MHz through 30MHz, RFI reduction techniques for LW, MW or even VHF/UHF are appreciated and will be included. I hope to add a folder on non obvious "RFI" issues like front end over load and "out of band" interference such as MW or even FM BCB issues. I found the R2000 does much better at LF, 100KHz through 500KHz, with the addition of a "Low Pass, MW reject filter", such as the one offered by Kiwa. For my purposes I consider any interference to be RFI and I hope to include links to sites that detail how to deal with all of them. For instance the Betts Preselector can really help a receiver like the R2000 in crowded band conditions. Will |
#2
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On May 21, 8:48 am, bill wrote:
If anyone finds any articles or links that they consider flawed or in error, please email me at gfreport at hotmail dot com and provide correct information, a link would be very nice. So far the only article I've seen is this email. Are you going to be posting additional documents under this thread on rec.radio.shortwave? In the RFI world there are often contradictory ways that achieve the same or very similar levels of reduction. While I intend the stopRFI group to mainly deal with SW, 1.8MHz through 30MHz, RFI reduction techniques for LW, MW or even VHF/UHF are appreciated and will be included. I hope to add a folder on non obvious "RFI" issues like front end over load and "out of band" interference such as MW or even FM BCB issues. I found the R2000 does much better at LF, 100KHz through 500KHz, with the addition of a "Low Pass, MW reject filter", such as the one offered by Kiwa. For my purposes I consider any interference to be RFI and I hope to include links to sites that detail how to deal with all of them. For instance the Betts Preselector can really help a receiver like the R2000 in crowded band conditions. Will |
#3
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On May 21, 8:47 am, Roadie wrote:
On May 21, 8:48 am, bill wrote: If anyone finds any articles or links that they consider flawed or in error, please email me at gfreport at hotmail dot com and provide correct information, a link would be very nice. So far the only article I've seen is this email. Are you going to be posting additional documents under this thread on rec.radio.shortwave? In the RFI world there are often contradictory ways that achieve the same or very similar levels of reduction. While I intend the stopRFI group to mainly deal with SW, 1.8MHz through 30MHz, RFI reduction techniques for LW, MW or even VHF/UHF are appreciated and will be included. I hope to add a folder on non obvious "RFI" issues like front end over load and "out of band" interference such as MW or even FM BCB issues. I found the R2000 does much better at LF, 100KHz through 500KHz, with the addition of a "Low Pass, MW reject filter", such as the one offered by Kiwa. For my purposes I consider any interference to be RFI and I hope to include links to sites that detail how to deal with all of them. For instance the Betts Preselector can really help a receiver like the R2000 in crowded band conditions. Will Sorry! The group can be found at http://groups.yahoo.com/group/stopRFI/. Membership is open to all. Posting is disabled. At 65 links and 45 files there isn't really anyway to post it here. Will |
#4
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On May 21, 8:47 am, Roadie wrote:
On May 21, 8:48 am, bill wrote: If anyone finds any articles or links that they consider flawed or in error, please email me at gfreport at hotmail dot com and provide correct information, a link would be very nice. So far the only article I've seen is this email. Are you going to be posting additional documents under this thread on rec.radio.shortwave? In the RFI world there are often contradictory ways that achieve the same or very similar levels of reduction. While I intend the stopRFI group to mainly deal with SW, 1.8MHz through 30MHz, RFI reduction techniques for LW, MW or even VHF/UHF are appreciated and will be included. I hope to add a folder on non obvious "RFI" issues like front end over load and "out of band" interference such as MW or even FM BCB issues. I found the R2000 does much better at LF, 100KHz through 500KHz, with the addition of a "Low Pass, MW reject filter", such as the one offered by Kiwa. For my purposes I consider any interference to be RFI and I hope to include links to sites that detail how to deal with all of them. For instance the Betts Preselector can really help a receiver like the R2000 in crowded band conditions. Will Sorry! The group can be found at http://groups.yahoo.com/group/stopRFI/. Membership is open to all. Posting is disabled. At 65 links and 45 files there isn't really anyway to post it here. Will |
#5
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bill ) writes:
On May 21, 8:47 am, Roadie wrote: On May 21, 8:48 am, bill wrote: If anyone finds any articles or links that they consider flawed or in error, please email me at gfreport at hotmail dot com and provide correct information, a link would be very nice. So far the only article I've seen is this email. Are you going to be posting additional documents under this thread on rec.radio.shortwave? In the RFI world there are often contradictory ways that achieve the same or very similar levels of reduction. While I intend the stopRFI group to mainly deal with SW, 1.8MHz through 30MHz, RFI reduction techniques for LW, MW or even VHF/UHF are appreciated and will be included. I hope to add a folder on non obvious "RFI" issues like front end over load and "out of band" interference such as MW or even FM BCB issues. I found the R2000 does much better at LF, 100KHz through 500KHz, with the addition of a "Low Pass, MW reject filter", such as the one offered by Kiwa. For my purposes I consider any interference to be RFI and I hope to include links to sites that detail how to deal with all of them. For instance the Betts Preselector can really help a receiver like the R2000 in crowded band conditions. Will Sorry! The group can be found at http://groups.yahoo.com/group/stopRFI/. Membership is open to all. Posting is disabled. At 65 links and 45 files there isn't really anyway to post it here. Will So you've got a "group" that is only accessible if you join up. Yet the content is coming from elsewhere. That is not a good thing. It's bad enough when I do websearches on my email addresses and find a page where a post of mine about an old receiver appears, nobody every told me that they were going to do that, but the subject header has been garbled because the person who put it there things I'm saying something I didn't say (I was correcting someone's notion here that a certain older receiver used the Wadley loop, yet on that website the subject header has been changed to suggest that I am reinforcing the notion, or something like that, I forget). There is a big difference between the google archive where newsgroup postings are kept in context, and someone taking posts and sticking them on webpages out of context. I think it's fair, and completely useful, to link to relevant messages in the google archive, but I take a dim view of messages being placed on websites out of that context. But instead of making up a webpage to do all this, you've taken the easy way, use yahoo, but the cost is that it's not available to all. You have to sign up to see the links, to see the files. That information is lost to the many. When Mark Holden went off and created a yahoo group for discussing synchronous detectors, I took issue with that because it balkanizes things even further. And unlike setting up a new newsgroup to discuss the topic, it's way off somewhere else, with little to connect the two. Sure, the public can read the messages without signing up, but the files and links are unavailable. Note, this is because the commercial entity known as yahoo wants to use that content to lure readership to their ads, and they want the minimal sign up information in order to help sculpt the ads that the readers see. Newcomers may not think anything is wrong with that, but those of us who have been around the internet for long enough realize the whole point was to let information loose, and that is contradicted by the notion of little places on the internet where you have to sign up. So not only did Mark Holden take away to some extent discussion of synchronous detectors, not only did he not offer something up to the whole world by making a simple webpage with the contents instead of locking it behind some corporate signup, but after some initial flurry of activity, that yahoo group is dead. A sympton, methinks, of a too specific topic. Michael |
#6
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On May 21, 10:31 am, bill wrote:
On May 21, 8:47 am, Roadie wrote: On May 21, 8:48 am, bill wrote: If anyone finds any articles or links that they consider flawed or in error, please email me at gfreport at hotmail dot com and provide correct information, a link would be very nice. So far the only article I've seen is this email. Are you going to be posting additional documents under this thread on rec.radio.shortwave? In the RFI world there are often contradictory ways that achieve the same or very similar levels of reduction. While I intend the stopRFI group to mainly deal with SW, 1.8MHz through 30MHz, RFI reduction techniques for LW, MW or even VHF/UHF are appreciated and will be included. I hope to add a folder on non obvious "RFI" issues like front end over load and "out of band" interference such as MW or even FM BCB issues. I found the R2000 does much better at LF, 100KHz through 500KHz, with the addition of a "Low Pass, MW reject filter", such as the one offered by Kiwa. For my purposes I consider any interference to be RFI and I hope to include links to sites that detail how to deal with all of them. For instance the Betts Preselector can really help a receiver like the R2000 in crowded band conditions. Will Sorry! The group can be found at http://groups.yahoo.com/group/stopRFI/. Membership is open to all. Posting is disabled. At 65 links and 45 files there isn't really anyway to post it here. Will- Hide quoted text - - Show quoted text - Thanks Bill! An interesting topic for sure since the level of interference only seems to go one way. |
#7
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On May 21, 10:29 am, (Michael Black) wrote:
bill ) writes: On May 21, 8:47 am, Roadie wrote: On May 21, 8:48 am, bill wrote: If anyone finds any articles or links that they consider flawed or in error, please email me at gfreport at hotmail dot com and provide correct information, a link would be very nice. So far the only article I've seen is this email. Are you going to be posting additional documents under this thread on rec.radio.shortwave? In the RFI world there are often contradictory ways that achieve the same or very similar levels of reduction. While I intend the stopRFI group to mainly deal with SW, 1.8MHz through 30MHz, RFI reduction techniques for LW, MW or even VHF/UHF are appreciated and will be included. I hope to add a folder on non obvious "RFI" issues like front end over load and "out of band" interference such as MW or even FM BCB issues. I found the R2000 does much better at LF, 100KHz through 500KHz, with the addition of a "Low Pass, MW reject filter", such as the one offered by Kiwa. For my purposes I consider any interference to be RFI and I hope to include links to sites that detail how to deal with all of them. For instance the Betts Preselector can really help a receiver like the R2000 in crowded band conditions. Will Sorry! The group can be found at http://groups.yahoo.com/group/stopRFI/. Membership is open to all. Posting is disabled. At 65 links and 45 files there isn't really anyway to post it here. Will So you've got a "group" that is only accessible if you join up. Yet the content is coming from elsewhere. That is not a good thing. It's bad enough when I do websearches on my email addresses and find a page where a post of mine about an old receiver appears, nobody every told me that they were going to do that, but the subject header has been garbled because the person who put it there things I'm saying something I didn't say (I was correcting someone's notion here that a certain older receiver used the Wadley loop, yet on that website the subject header has been changed to suggest that I am reinforcing the notion, or something like that, I forget). There is a big difference between the google archive where newsgroup postings are kept in context, and someone taking posts and sticking them on webpages out of context. I think it's fair, and completely useful, to link to relevant messages in the google archive, but I take a dim view of messages being placed on websites out of that context. But instead of making up a webpage to do all this, you've taken the easy way, use yahoo, but the cost is that it's not available to all. You have to sign up to see the links, to see the files. That information is lost to the many. When Mark Holden went off and created a yahoo group for discussing synchronous detectors, I took issue with that because it balkanizes things even further. And unlike setting up a new newsgroup to discuss the topic, it's way off somewhere else, with little to connect the two. Sure, the public can read the messages without signing up, but the files and links are unavailable. Note, this is because the commercial entity known as yahoo wants to use that content to lure readership to their ads, and they want the minimal sign up information in order to help sculpt the ads that the readers see. Newcomers may not think anything is wrong with that, but those of us who have been around the internet for long enough realize the whole point was to let information loose, and that is contradicted by the notion of little places on the internet where you have to sign up. So not only did Mark Holden take away to some extent discussion of synchronous detectors, not only did he not offer something up to the whole world by making a simple webpage with the contents instead of locking it behind some corporate signup, but after some initial flurry of activity, that yahoo group is dead. A sympton, methinks, of a too specific topic. Michael The only posts or threads form news groups are those that r2000swler was a participant and he has mainly copied his comments only keeping the comments of others as needed to keep the meaning clear. In the near future he will redo these few posts as stand alone text that he will have completed. The links are an attempt to avoid geting anything out of context. The files are complete and should not be ambigious or hopefully will not take anything out of context. All are either public domain, or "fair use" being non comercial with a link to the origianl file. If you, or anyone for that matte, finds anything that has been taken "out of context", or presented in a way that you consider unfair, please let me know and I will consider removing the link or the file. Clearly if someone is offended by anything in the public domain, like the "US NAVY AC Mains RFI Study", that is simply too bad. For the most I have the permission of the creator of the that are posted. Dallas Lankford sent me the files of his that I have posted. W1HIS granted me permission to publish some stuff he emailed to r2000swler. Any requests for removal , or good links can be made in this group, or by sending me an email at gfreport at hotmail. dot com. I did not start the stopRFI group to irrate anyone. I wanted to make a single clearing house with RFI info that people I trust feel is useful. But the contents are my choice. I haven't rejected anything yet, I have removed some links after reviewing them and decciding they do not fit the "mission profile". Will |
#8
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On May 21, 12:05 pm, bill wrote:
On May 21, 10:29 am, (Michael Black) wrote: bill ) writes: On May 21, 8:47 am, Roadie wrote: On May 21, 8:48 am, bill wrote: If anyone finds any articles or links that they consider flawed or in error, please email me at gfreport at hotmail dot com and provide correct information, a link would be very nice. So far the only article I've seen is this email. Are you going to be posting additional documents under this thread on rec.radio.shortwave? In the RFI world there are often contradictory ways that achieve the same or very similar levels of reduction. While I intend the stopRFI group to mainly deal with SW, 1.8MHz through 30MHz, RFI reduction techniques for LW, MW or even VHF/UHF are appreciated and will be included. I hope to add a folder on non obvious "RFI" issues like front end over load and "out of band" interference such as MW or even FM BCB issues. I found the R2000 does much better at LF, 100KHz through 500KHz, with the addition of a "Low Pass, MW reject filter", such as the one offered by Kiwa. For my purposes I consider any interference to be RFI and I hope to include links to sites that detail how to deal with all of them. For instance the Betts Preselector can really help a receiver like the R2000 in crowded band conditions. Will Sorry! The group can be found at http://groups.yahoo.com/group/stopRFI/. Membership is open to all. Posting is disabled. At 65 links and 45 files there isn't really anyway to post it here. Will So you've got a "group" that is only accessible if you join up. Yet the content is coming from elsewhere. That is not a good thing. It's bad enough when I do websearches on my email addresses and find a page where a post of mine about an old receiver appears, nobody every told me that they were going to do that, but the subject header has been garbled because the person who put it there things I'm saying something I didn't say (I was correcting someone's notion here that a certain older receiver used the Wadley loop, yet on that website the subject header has been changed to suggest that I am reinforcing the notion, or something like that, I forget). There is a big difference between the google archive where newsgroup postings are kept in context, and someone taking posts and sticking them on webpages out of context. I think it's fair, and completely useful, to link to relevant messages in the google archive, but I take a dim view of messages being placed on websites out of that context. But instead of making up a webpage to do all this, you've taken the easy way, use yahoo, but the cost is that it's not available to all. You have to sign up to see the links, to see the files. That information is lost to the many. When Mark Holden went off and created a yahoo group for discussing synchronous detectors, I took issue with that because it balkanizes things even further. And unlike setting up a new newsgroup to discuss the topic, it's way off somewhere else, with little to connect the two. Sure, the public can read the messages without signing up, but the files and links are unavailable. Note, this is because the commercial entity known as yahoo wants to use that content to lure readership to their ads, and they want the minimal sign up information in order to help sculpt the ads that the readers see. Newcomers may not think anything is wrong with that, but those of us who have been around the internet for long enough realize the whole point was to let information loose, and that is contradicted by the notion of little places on the internet where you have to sign up. So not only did Mark Holden take away to some extent discussion of synchronous detectors, not only did he not offer something up to the whole world by making a simple webpage with the contents instead of locking it behind some corporate signup, but after some initial flurry of activity, that yahoo group is dead. A sympton, methinks, of a too specific topic. Michael The only posts or threads form news groups are those that r2000swler was a participant and he has mainly copied his comments only keeping the comments of others as needed to keep the meaning clear. In the near future he will redo these few posts as stand alone text that he will have completed. The links are an attempt to avoid geting anything out of context. The files are complete and should not be ambigious or hopefully will not take anything out of context. All are either public domain, or "fair use" being non comercial with a link to the origianl file. If you, or anyone for that matte, finds anything that has been taken "out of context", or presented in a way that you consider unfair, please let me know and I will consider removing the link or the file. Clearly if someone is offended by anything in the public domain, like the "US NAVY AC Mains RFI Study", that is simply too bad. For the most I have the permission of the creator of the that are posted. Dallas Lankford sent me the files of his that I have posted. W1HIS granted me permission to publish some stuff he emailed to r2000swler. Any requests for removal , or good links can be made in this group, or by sending me an email at gfreport at hotmail. dot com. I did not start the stopRFI group to irrate anyone. I wanted to make a single clearing house with RFI info that people I trust feel is useful. But the contents are my choice. I haven't rejected anything yet, I have removed some links after reviewing them and decciding they do not fit the "mission profile". Will- Hide quoted text - - Show quoted text - I think the clearinghouse approach is a good idea. In a perfect world Yahoo would be free of spammers and trolls. Unfortunately the real world is that an open Yahoo group can work only if the forum leader patrols the posts constantly. |
#9
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On May 21, 12:07 pm, Roadie wrote:
I think the clearinghouse approach is a good idea. In a perfect world Yahoo would be free of spammers and trolls. Unfortunately the real world is that an open Yahoo group can work only if the forum leader patrols the posts constantly. I would love to be abel to build a web page, but I simply don't have the skills to master HTML, and I preferr to spend my free time listening to my SW! Somehow I have less free time now that I have retired. If anyone is interested in building a web page I will check with Dallas, W1HIS and r2000swler about migrating the information there. The Yahoo group isn't perfect, but you can create a "fake" id to access the groups. After all, I hope everyone undersgtands gfreport has nothing to do with my real identity. William |
#10
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On May 21, 2:18 pm, bill wrote:
On May 21, 12:07 pm, Roadie wrote: I think the clearinghouse approach is a good idea. In a perfect world Yahoo would be free of spammers and trolls. Unfortunately the real world is that an open Yahoo group can work only if the forum leader patrols the posts constantly. I would love to be abel to build a web page, but I simply don't have the skills to master HTML, and I preferr to spend my free time listening to my SW! Somehow I have less free time now that I have retired. Congratulations on retirement. But that's how I think it should be...busy but with different things than the job(s) that kept us busy for 40 years! If anyone is interested in building a web page I will check with Dallas, W1HIS and r2000swler about migrating the information there. The Yahoo group isn't perfect, but you can create a "fake" id to access the groups. After all, I hope everyone undersgtands gfreport has nothing to do with my real identity. I subscribe to 2 dozen Yahoo groups and only two have really been taken over by the spammers. I'll check your sire out later this evening. William |
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