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Fringe Reception Reports
70W C-Band
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<blockquote data-quote="John" data-source="post: 1150941" data-attributes="member: 175005"><p>Brief OT thread update for experimental enthusiasts - - -</p><p>On <em><u>my system</u> , based on my 5G cell tower interference distance from me , </em>this simple inner sleeve reduction exercise to find the best rx compromise for some low band 5G interference reduction without reducing performance from 3.7GHz or so upwards is actually baring fruit. I'm no RF engineer but alongside using my excellent Promax HD Ranger+ to record progress , i have made an improvement to my fringe low level signal receptions on more than one band. I have also been using a on line Circular wave guide cut-off calculator to get me in the ball park. Currently at 50mm I/D of the feed sleeve with good results , a section of 47.5mm I/D is next to try which if i take the calculator result as somewhat near to being reasonably accurate , also remember-i'm not a professional RF engineer, just a simple experimenter , this will possibly give me a rx range from ~ 3.7GHz upwards & giving <em>some resistance </em>to the interfering 5G signals lower down the band ?.</p><p>.......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................</p><p></p><p>[ATTACH=full]151355[/ATTACH]</p></blockquote><p></p>
[QUOTE="John, post: 1150941, member: 175005"] Brief OT thread update for experimental enthusiasts - - - On [I][U]my system[/U] , based on my 5G cell tower interference distance from me , [/I]this simple inner sleeve reduction exercise to find the best rx compromise for some low band 5G interference reduction without reducing performance from 3.7GHz or so upwards is actually baring fruit. I'm no RF engineer but alongside using my excellent Promax HD Ranger+ to record progress , i have made an improvement to my fringe low level signal receptions on more than one band. I have also been using a on line Circular wave guide cut-off calculator to get me in the ball park. Currently at 50mm I/D of the feed sleeve with good results , a section of 47.5mm I/D is next to try which if i take the calculator result as somewhat near to being reasonably accurate , also remember-i'm not a professional RF engineer, just a simple experimenter , this will possibly give me a rx range from ~ 3.7GHz upwards & giving [I]some resistance [/I]to the interfering 5G signals lower down the band ?. ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... [ATTACH type="full"]151355[/ATTACH] [/QUOTE]
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