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
547 Views
Last post April 22, 2019, 1232 UTC
by Ray Lalleu
1 Replies
321 Views
Last post December 28, 2022, 1722 UTC
by Shortwave_Listener
0 Replies
330 Views
Last post November 29, 2024, 2120 UTC
by Ray Lalleu
0 Replies
389 Views
Last post December 25, 2019, 1529 UTC
by Ray Lalleu
0 Replies
189 Views
Last post August 27, 2023, 1840 UTC
by Ray Lalleu
0 Replies
575 Views
Last post April 24, 2018, 2000 UTC
by Ray Lalleu
0 Replies
395 Views
Last post August 27, 2019, 1656 UTC
by Ray Lalleu
0 Replies
370 Views
Last post July 04, 2020, 1627 UTC
by Ray Lalleu
4 Replies
772 Views
Last post May 22, 2021, 2256 UTC
by raypfaff
1 Replies
403 Views
Last post March 25, 2022, 1848 UTC
by kris
0 Replies
212 Views
Last post March 06, 2024, 2003 UTC
by Ray Lalleu
0 Replies
401 Views
Last post February 25, 2019, 1605 UTC
by Ray Lalleu
0 Replies
443 Views
Last post April 10, 2020, 1248 UTC
by Ray Lalleu
1 Replies
383 Views
Last post January 05, 2021, 1808 UTC
by Ray Lalleu
1 Replies
229 Views
Last post December 10, 2023, 1009 UTC
by Ethernut
0 Replies
405 Views
Last post October 04, 2018, 1556 UTC
by Ray Lalleu
0 Replies
412 Views
Last post October 10, 2020, 0929 UTC
by Ray Lalleu
2 Replies
648 Views
Last post July 01, 2019, 1021 UTC
by Ray Lalleu
2 Replies
510 Views
Last post April 11, 2021, 1622 UTC
by kris
1 Replies
256 Views
Last post March 12, 2023, 1336 UTC
by Magnitic

 

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