K9AY loops

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The K9AY is terminated loop. It consists of a wire loop of any convenient shape (diamond, delta, etc), hung from a single support and with a ground rod at the bottom. A 9:1 impedance-matching transformer is connected from one end of the loop to the ground and terminating resistor is connected the other end of the loop to the ground. This antenna is directional. Favoring signals are arriving from the feed point end. You can also change the antenna far field by changing RLOAD (RTERM) of the loop.

Main functions:


Fixed

Variable

Download

K9AY
Manual in WiKi WiKi
rev 2.4 variable.sch pcb eagle299
rev 0.1 fixed.sch variable.sch pcb eagle396
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View and download the Shield Schematic and PCB Eagle CAD files.
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Users implementation photos


by F1SRC

PD9X

PD9X

PD9X

Design & code ok1hra | Copyleft 2013-2017 | License