09-11-2017, 11:13 PM
Well, so I built this for it and it actually works very well. I used 13 turns on a 10" x 10" frame and put a padder capacitor across it. The antenna impedance at 640 kHz turned out to be about 35 k ohms, and the 38-15 chairside measured about 22 k ohms at the same frequency. I called it good and didn't try any further Z match.
Meanwhile, I also discovered abandoned phone cable running horizontally around the outside of the house and right beneath the window behind the chairside. I tapped into that, and now it seems I don't need the tuned loop at all.
Go figure...
Rob
[Image: https://s26.postimg.org/w1rq2x3w9/Tuned_Loop.jpg]
Meanwhile, I also discovered abandoned phone cable running horizontally around the outside of the house and right beneath the window behind the chairside. I tapped into that, and now it seems I don't need the tuned loop at all.
Go figure...
Rob
[Image: https://s26.postimg.org/w1rq2x3w9/Tuned_Loop.jpg]
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
