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
1510 Views
Last post September 06, 2023, 2335 UTC
by N2MLP
0 Replies
193 Views
Last post September 01, 2024, 1002 UTC
by Ray Lalleu
0 Replies
365 Views
Last post September 05, 2019, 1902 UTC
by Ray Lalleu
0 Replies
228 Views
Last post May 04, 2023, 1903 UTC
by Ray Lalleu
1 Replies
407 Views
Last post March 19, 2025, 1012 UTC
by Benoit LEVEQUE
0 Replies
394 Views
Last post April 13, 2020, 1650 UTC
by Ray Lalleu
0 Replies
413 Views
Last post October 12, 2018, 1603 UTC
by Ray Lalleu
1 Replies
406 Views
Last post July 01, 2022, 1706 UTC
by Shortwave_Listener
0 Replies
577 Views
Last post May 11, 2018, 2011 UTC
by Ray Lalleu
0 Replies
373 Views
Last post July 09, 2019, 1933 UTC
by Ray Lalleu
0 Replies
336 Views
Last post July 11, 2020, 2029 UTC
by Ray Lalleu
0 Replies
460 Views
Last post April 18, 2021, 1041 UTC
by Ray Lalleu
2 Replies
258 Views
Last post February 08, 2025, 2050 UTC
by Ray Lalleu
0 Replies
385 Views
Last post March 08, 2019, 1930 UTC
by Ray Lalleu
0 Replies
369 Views
Last post March 15, 2020, 0925 UTC
by Ray Lalleu
2 Replies
386 Views
Last post November 06, 2022, 2026 UTC
by Bali_Frank
2 Replies
298 Views
Last post October 27, 2024, 2213 UTC
by Professor
0 Replies
421 Views
Last post November 10, 2019, 0934 UTC
by Ray Lalleu
1 Replies
552 Views
Last post August 04, 2021, 2139 UTC
by CoolAM Radio
0 Replies
204 Views
Last post July 20, 2023, 2316 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