We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissible in your locale.

Subject / Started by Last post
0 Replies
242 Views
Last post September 19, 2024, 1931 UTC
by Ray Lalleu
0 Replies
442 Views
Last post August 15, 2018, 1925 UTC
by Ray Lalleu
1 Replies
510 Views
Last post September 24, 2019, 1922 UTC
by kris
0 Replies
357 Views
Last post September 10, 2020, 1822 UTC
by Ray Lalleu
1 Replies
416 Views
Last post June 13, 2021, 1949 UTC
by Bali_Frank
1 Replies
290 Views
Last post May 24, 2023, 1629 UTC
by Pigmeat
0 Replies
236 Views
Last post May 17, 2024, 2021 UTC
by Ray Lalleu
2 Replies
421 Views
Last post April 03, 2025, 0832 UTC
by Benoit LEVEQUE
2 Replies
564 Views
Last post May 13, 2019, 2050 UTC
by The Ether Hacker
0 Replies
499 Views
Last post April 25, 2020, 1840 UTC
by Ray Lalleu
0 Replies
372 Views
Last post March 07, 2021, 1114 UTC
by Ray Lalleu
0 Replies
323 Views
Last post January 25, 2020, 0832 UTC
by Ray Lalleu
0 Replies
393 Views
Last post October 02, 2021, 1659 UTC
by Ray Lalleu
1 Replies
180 Views
Last post June 29, 2025, 1925 UTC
by RadioLongWire
0 Replies
564 Views
Last post June 02, 2018, 1903 UTC
by Ray Lalleu
0 Replies
349 Views
Last post April 10, 2022, 1543 UTC
by Ray Lalleu
0 Replies
200 Views
Last post March 26, 2024, 0817 UTC
by Ray Lalleu
0 Replies
408 Views
Last post March 30, 2019, 1048 UTC
by Ray Lalleu
0 Replies
333 Views
Last post January 28, 2021, 1115 UTC
by Ray Lalleu
0 Replies
401 Views
Last post January 03, 2022, 0837 UTC
by Ray Lalleu

 

Normal Topic
Hot Topic (More than 15 replies)
Very Hot Topic (More than 25 replies)

Locked Topic
Sticky Topic
Poll


HFUnderground T-Shirt
HFUnderground Garden Flag
by MitchellTimeDesigns