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
213 Views
Last post June 01, 2023, 0417 UTC
by Molvania Poacher
3 Replies
263 Views
Last post August 12, 2023, 0350 UTC
by shadypyro
2 Replies
405 Views
Last post December 22, 2023, 0318 UTC
by shadypyro
2 Replies
310 Views
Last post July 24, 2023, 0359 UTC
by shadypyro
3 Replies
340 Views
Last post June 20, 2023, 0401 UTC
by shadypyro
4 Replies
241 Views
Last post December 30, 2023, 0351 UTC
by N2MLP
0 Replies
174 Views
Last post August 03, 2023, 0711 UTC
by Shortwave_Listener
0 Replies
385 Views
Last post June 01, 2022, 0402 UTC
by MDK2
1 Replies
180 Views
Last post June 17, 2023, 0407 UTC
by N2MLP
0 Replies
285 Views
Last post June 28, 2022, 0405 UTC
by Shortwave_Listener
1 Replies
394 Views
Last post February 16, 2024, 0432 UTC
by Markokpik
0 Replies
237 Views
Last post June 08, 2023, 0406 UTC
by Shortwave_Listener
0 Replies
442 Views
Last post June 14, 2021, 0409 UTC
by Treehouse SWL
0 Replies
150 Views
Last post June 28, 2023, 0408 UTC
by Shortwave_Listener
2 Replies
552 Views
Last post March 12, 2023, 0603 UTC
by shadypyro
2 Replies
472 Views
Last post May 28, 2022, 0431 UTC
by Traveling Wave
0 Replies
426 Views
Last post June 25, 2021, 2018 UTC
by Ron - Calif.
0 Replies
135 Views
Last post July 29, 2023, 0418 UTC
by N2MLP
0 Replies
206 Views
Last post December 05, 2023, 0418 UTC
by Shortwave_Listener
0 Replies
399 Views
Last post July 17, 2021, 0421 UTC
by Treehouse SWL

 

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