KiwiSDR VLF Loop Nulls
Deep nulls of a small VLF loop antenna shown by rotating the loop and plotting signal strenght.
Video correction: 24.0 kHz, NAA is in Cutler, Maine.
Frequency, Call sign, Distance, Bearing, Location
19.8 kHz, NWC 8,882 miles, 274 degrees, Australia,
21.4 kHz, NPM 2,619 miles, 242.3 degrees, Lualualei, Hawaii,
22.2 kHz, JJI 5,398 miles, 304 degrees, Ebino, Japan,
22.6 kHz, HWU 4,640 miles, 38 degrees, Rosnay, France
24.0 kHz, NAA 2,639 miles, 71.1 degrees, Cutler, Maine,
24.8 kHz, NLK 177 miles, 7.0 degrees, Jim Creek Naval Radio Station in north Cascades Washington
KiwiSDR
RCA VH226E Programmable Outdoor Antenna Rotator
https://www.amazon.com/AUDIOVOX-Remot...
Loop Antenna
39 inches diameter, 49 turns of 22 AWG magnet wire, up 10 feet
73 David WA9ONY