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![]() I did that long ago . I found you need far more than just the ratio . I discoverd i needed to have a more intuitive feel for the whole circuit , than merely the Ratio . Now i have that intuitive feel for electronics and microwave and antennas . I can see obvious errors that will ruin the hook-up . The secret is to NOT use a critical piece of gear , you desperatly want to work . If you have a piece of gear you want/need to work , you'll learn the hard way . I have found , easy learning is to start with someone elses success , then try to gleen what you can . But if it gets tricky , put it aside and find an easier explanation . I.E. MFJ 209 . I spent time trying to master its use . Then i stumbled on a Ham Radio article about Dipper , using the 209 . This simple ( resistor , CAP , air coil ) circuit made me toss some of what i learned from MFJ's tutorial ! It was a new approach . MFJ did not include it , cause it would enhance 209 til it would obsolete other MFJ boxes ! It was a political thing . So , now i learn faster , by stopping my learning when i see it may get too detailed to make a value judgement . Back to microwave . You should not learn it on something you NEED . You should not learn from texts nor "new, improved , enhanced Special for Hams this box does EVERYTHING .... I struggled when i tried to learn from building my own antennas , but learned very fast when i listened to the crowd , tout J-poles , then tried to find the fundamental error of the J-POLE . Be opportiunistic in your learning ! If you see the crowd touting something , then it probably does not "work" , except as snake oil to enhance their reputation as antenna experts. Few talk microwave , but you can still learn what does NOT work in MicroWave . You posted about matching . Losses skyrocket as you go above 200 MHZ . No more long leads and everyting is an accidental capacitance , that drops Q . But once you learn how to avoid these losses , then you can go to about 2 ghz . rect' wave guides are lossy , we use round for long runs , but its more complicated , for really long runs , RF is far lower loss ! 2 small dishes are far less cost than 200 feet of hardline ! I can cobble up a WiFi link with 12 " dishes and amplify the rcv end to a kilowatt , cheaper than you can transmit that kilowatt on hardline . Must we use WG ?! So you need to give us more details of you "match" , so we can help the easiest way , the lowest cost way . I see big changes , things we thing we need becoming extincnt . Did you know , 30 years , no one will want nor need to drive a car , and gas will be back down to $1 / gallon ! By solving problems ( our govt sees as a windfall to themsleves , job security ) , we will free ourselves from their technical "slavery" . They will no longer be able to "license" us in any way . We wont have any need for Nuke power plants. KC7CC .. |
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