Hi Eric, Lowfers, > Question about that -- how many turns does a coupling loop like that need to be? On beacon EAR the coupling coil is three turns of #16 insulated hookup wire, with the turns "nesting in the valleys" between turns of the loading coil windings. 73, J.B., VE3EAR LowFER Beacon "EAR" 188.830 kHz. QRSS30 EN93dr