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
200 Views
Last post April 27, 2025, 2039 UTC
by Ray Lalleu
0 Replies
219 Views
Last post June 23, 2024, 1024 UTC
by Ray Lalleu
2 Replies
533 Views
Last post October 02, 2020, 2146 UTC
by Gino Italy
0 Replies
402 Views
Last post October 25, 2019, 1945 UTC
by Ray Lalleu
0 Replies
516 Views
Last post September 23, 2018, 1014 UTC
by Ray Lalleu
2 Replies
390 Views
Last post October 16, 2024, 2009 UTC
by Fisherman
0 Replies
374 Views
Last post December 30, 2020, 0915 UTC
by Ray Lalleu
0 Replies
436 Views
Last post February 14, 2019, 1807 UTC
by Ray Lalleu
0 Replies
395 Views
Last post June 26, 2020, 0956 UTC
by Ray Lalleu
1 Replies
459 Views
Last post May 31, 2025, 2335 UTC
by kris
1 Replies
296 Views
Last post August 18, 2023, 2230 UTC
by N2MLP
1 Replies
542 Views
Last post September 03, 2021, 1713 UTC
by ukdxer
1 Replies
341 Views
Last post December 15, 2019, 2118 UTC
by ChrisSmolinski
1 Replies
289 Views
Last post November 20, 2024, 1804 UTC
by kris
0 Replies
251 Views
Last post December 19, 2022, 1549 UTC
by Ray Lalleu
0 Replies
340 Views
Last post February 07, 2021, 0828 UTC
by Ray Lalleu
2 Replies
591 Views
Last post April 04, 2020, 1454 UTC
by kris
0 Replies
609 Views
Last post April 15, 2019, 1710 UTC
by Ray Lalleu
0 Replies
227 Views
Last post March 04, 2025, 1723 UTC
by Ray Lalleu
1 Replies
277 Views
Last post April 07, 2024, 1907 UTC
by Fisherman

 

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