tag:blogger.com,1999:blog-5480750694693825336.post9022738538613306042..comments2024-03-21T00:59:58.137-07:00Comments on G0KYA's Amateur Radio Blog: Repairing a MFJ-1786 magnetic loopSteve Nicholshttp://www.blogger.com/profile/03564402221894277279noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-5480750694693825336.post-33262626822128209162024-01-06T06:12:53.694-08:002024-01-06T06:12:53.694-08:00I wonder if it is interacting with something near ...I wonder if it is interacting with something near by? That would detune it. Something else to try is to reshape the feed loop. That usually fixes mismatch issues. What is the best SWR you get on 20m?Steve Nicholshttps://www.blogger.com/profile/03564402221894277279noreply@blogger.comtag:blogger.com,1999:blog-5480750694693825336.post-40068904414011471052024-01-04T15:19:44.957-08:002024-01-04T15:19:44.957-08:00The motor failed so I changed it. Mine would only ...The motor failed so I changed it. Mine would only tune on 20m, so I opened and adjusted the loop. Now it will tune on everything but 20m. This loop has been far more trouble than it's worth for the cost of the thing.<br />MattBWhttps://www.blogger.com/profile/13657141743941529841noreply@blogger.comtag:blogger.com,1999:blog-5480750694693825336.post-75047193540992529292022-12-05T11:38:46.849-08:002022-12-05T11:38:46.849-08:00Hello Juergen
I have the same problem with Fast t...Hello Juergen<br /><br />I have the same problem with Fast tune….Slow works fine….did you have any success in finding the problem?<br /><br />73<br /><br />Steve<br />W8SAWAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-5480750694693825336.post-35810198763612725412022-12-05T11:25:13.890-08:002022-12-05T11:25:13.890-08:00Hello All
Likewise thanks for sharing the circuit...Hello All<br /><br />Likewise thanks for sharing the circuit diagram.<br />My controller works on slow but not fast!<br />On slow the motor sees about 5v, but on fast it only sees about 2v.<br />However if I disconnect the antenna I get 9v on the antenna output terminals???<br />This sound like it should be about fight for faster turning but I don’t know why it drops to 2v when the controller is connected.<br />Any advise would be appreciated!!<br />73<br />Steve<br />W8SAW<br /><br />SteveWnoreply@blogger.comtag:blogger.com,1999:blog-5480750694693825336.post-34576326349725298012022-08-02T10:34:32.474-07:002022-08-02T10:34:32.474-07:00As of today, the remote controller of my 1788X no ...As of today, the remote controller of my 1788X no longer controls slowly up or down, the red up LED is constantly lit - fast still works. <br />Thank you very much for the wiring diagram.<br />73 Juergen DL4JRAnonymousnoreply@blogger.com