twin turn 1.1m 40m loop - magnetic loop antenna 40 to 160m
Simon_G4SGI on Twitter: "2E0ERO's magnetic loop in my bedroom running WSPR on 40m @ 23dBm from a ZachTek transmitter #hamr #hamradio https://t.co/lIsfpGCqSK" / Twitter
Magnetic loop antennas FAQ
MLA-T Mag.Loop portable, 40-160m | WiMo
HB9MTN MAGNETIC LOOP FOR 80M - 40M
Mag Loop For 40m-10m - Resource Detail - The DXZone.com