Good evening friends, after the 4-square mini-array (phased verticals), built in 1994, several Pennants and a rotable Flag, now I am going to try also the K9AY loop. I have four RG213 feedlines for R
Now this is my question: - in the original '97 QST article K9AY uses a trifilar transformer, but later it was suggested by many to go to separated windings and to not ground the coax cable at the ant
Luis, My comments are included below with snips of your questions. 73, Gary K9AY _____________________ Good choice! It is my experience that common-mode problems are rare with buried feedlines, since
Hello Luis! 7 2005 ., 1:51:10: The placement of this chokes, which (I hope you have few of them for RX feedlines) and what quality of ground rods used, may vary its properties from FB to INCREASING n
Gary, many thanks for the quick reply and your precious info, particularly appreciated the details on the transformer inside your commercial version AYL-4 of the loop, which are not publicized on the
Hi Andrei, many thanks for your reply and the very useful informations! == The placement of this chokes, which (I hope you have few of them for RX feedlines) and what quality of ground rods used, may
Hello Luis! 8 2005 ., 18:22:58: Seems to be strange a bit! If I remember correctly he is using some DPDT relay to switch IN-OUT amplifier AFTER the rotary switch. I`would check that RCA connectors ..
When I was a young engineer, fresh out of college, designing and breadboarding wideband amplifiers, my experienced mentors always had me check for UHF or higher self-oscillation when there were stran