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
1 Replies
365 Views
Last post July 17, 2022, 1506 UTC
by Ray Lalleu
0 Replies
302 Views
Last post October 31, 2020, 1129 UTC
by Ray Lalleu
0 Replies
435 Views
Last post November 30, 2019, 1545 UTC
by Ray Lalleu
1 Replies
214 Views
Last post November 09, 2024, 1110 UTC
by n2avh
2 Replies
1352 Views
Last post December 30, 2023, 2358 UTC
by RobRich
0 Replies
374 Views
Last post January 03, 2022, 1037 UTC
by Ray Lalleu
0 Replies
414 Views
Last post January 28, 2021, 1435 UTC
by Ray Lalleu
0 Replies
308 Views
Last post April 25, 2020, 1930 UTC
by Ray Lalleu
1 Replies
528 Views
Last post March 30, 2019, 1407 UTC
by dxace1
0 Replies
290 Views
Last post March 26, 2024, 1040 UTC
by Ray Lalleu
2 Replies
528 Views
Last post July 26, 2020, 2207 UTC
by kris
3 Replies
294 Views
Last post June 29, 2025, 2129 UTC
by kris
0 Replies
413 Views
Last post October 02, 2021, 1730 UTC
by Ray Lalleu
0 Replies
330 Views
Last post January 25, 2020, 0844 UTC
by Ray Lalleu
1 Replies
249 Views
Last post December 22, 2024, 1221 UTC
by TRI International
0 Replies
353 Views
Last post March 07, 2021, 1158 UTC
by Ray Lalleu
0 Replies
359 Views
Last post May 14, 2019, 1540 UTC
by Ray Lalleu
0 Replies
194 Views
Last post April 03, 2025, 1353 UTC
by Ray Lalleu
1 Replies
345 Views
Last post May 17, 2024, 2105 UTC
by kris
1 Replies
453 Views
Last post June 13, 2021, 2245 UTC
by kris

 

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

Locked Topic
Sticky Topic
Poll


HFUnderground T-Shirt
HFUnderground T-Shirt
by MitchellTimeDesigns