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
3 Replies
814 Views
Last post October 28, 2023, 2054 UTC
by Shortwave_Listener
0 Replies
2786 Views
Last post November 28, 2014, 2035 UTC
by Rockpicker
1 Replies
1612 Views
Last post October 04, 2015, 1742 UTC
by ChrisSmolinski
3 Replies
1032 Views
Last post March 12, 2022, 1939 UTC
by MDK2
1 Replies
327 Views
Last post May 24, 2024, 1524 UTC
by R4002
1 Replies
964 Views
Last post April 18, 2020, 1833 UTC
by Josh
3 Replies
727 Views
Last post May 03, 2023, 2111 UTC
by ~SIGINT~
0 Replies
1449 Views
Last post October 20, 2013, 1745 UTC
by skeezix
0 Replies
461 Views
Last post October 14, 2023, 1836 UTC
by N2MLP
0 Replies
209 Views
Last post July 26, 2024, 2340 UTC
by N2MLP
0 Replies
497 Views
Last post May 03, 2023, 0154 UTC
by N2MLP
1 Replies
156 Views
Last post August 17, 2024, 1513 UTC
by Ct Yankee
0 Replies
222 Views
Last post July 21, 2024, 0221 UTC
by N2MLP
1 Replies
583 Views
Last post May 18, 2023, 1142 UTC
by ChrisSmolinski
0 Replies
243 Views
Last post July 28, 2024, 1641 UTC
by N2MLP
1 Replies
651 Views
Last post May 01, 2023, 2354 UTC
by IrvingtonVFD43
0 Replies
452 Views
Last post May 03, 2023, 0121 UTC
by N2MLP
0 Replies
240 Views
Last post June 23, 2024, 0443 UTC
by N2MLP
0 Replies
1333 Views
Last post October 24, 2017, 1932 UTC
by Traveling Wave
1 Replies
256 Views
Last post August 20, 2024, 1338 UTC
by R4002

 

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

Locked Topic
Sticky Topic
Poll


HFUnderground T-Shirt
HFUnderground House Flag
by MitchellTimeDesigns