PK's Loop Antennas
Low power consumption, so battery life is long, probably ~12 months, ie a bit like your smoke detector battery. The tuning system is sharp and peaks
PK's HD Series Remote Tuned Outdoor AM Radio Loop Antenna with 10m cable
Performance of the fabricated loop antenna (a) Simulated and measured
A follow-up review of the PK Loop C-LOOP-HDSW6-18 antenna
PK's Loop Antennas
AIR - RADIORAMA: 2013-09-29
A follow-up review of the PK Loop C-LOOP-HDSW6-18 antenna
PK Loop The SWLing Post
HIGH POWER, HIGH Quality 1:1 Balun for 160m - 10m Bands (1.8 - 30MHz) $107.73 - PicClick
Our Latest Model (Jan 2021) HD Series Shielded Magnetic Shortwave Loop II, with an extended frequency range compared to the superseded model
NEW - PK's HD Series Shortwave II Loop Antenna for 5.5 - 21.5MHz
PDF) Design and Development of Small Active and Passive Loop Antennas for Measurement of Shielding Effectiveness per IEEE Std.299
Antennas Direct ClearStream 4 Outdoor UHF HDTV Antenna
PK's Loop Antennas
VK3KHZ - Callsign Lookup by QRZ Ham Radio
Maybe the most controversial shortwave antenna on the market right now. I think it's an amazing performer, especially for the price. The Megaloop MLA-30+. : r/shortwave
Basic HF Antennas - The RadioReference Wiki