28-06-2020, 04:57 AM
(27-06-2020, 08:42 PM)Mike Watterson Wrote: You can use Cat5 cable with the pairs shorted to give four wires. Then connect the "loops" in series to give x4 turns per loop. Around a window frame or three shelves of a bookcase with as many turns as there is wire. You can use twin bell wire and then connect the two wires in series. Or 4 core alarm wire. Treat any twisted pair as one wire, shorting both ends. Shielded Cat 5 may work with the shield earthed at only one end.
It's not critical.
Here's my old existing loop using 4 core alarm cable.
