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
1285 Views
Last post October 14, 2023, 1131 UTC
by manfredo
2 Replies
2571 Views
Last post March 10, 2013, 0031 UTC
by cmradio
4 Replies
2266 Views
Last post December 19, 2018, 1839 UTC
by R4002
2 Replies
1553 Views
Last post August 16, 2023, 0242 UTC
by Shortwave_Listener
0 Replies
2191 Views
Last post August 31, 2025, 0244 UTC
by Gr0undPlan3
1 Replies
1141 Views
Last post February 09, 2023, 0256 UTC
by Pigmeat
1 Replies
3630 Views
Last post September 13, 2009, 0254 UTC
by cmradio
0 Replies
1173 Views
Last post August 18, 2023, 1248 UTC
by TRI International
0 Replies
1178 Views
Last post May 10, 2024, 0951 UTC
by TRI International
3 Replies
1728 Views
Last post March 11, 2023, 2302 UTC
by flexoman61
0 Replies
1089 Views
Last post September 14, 2023, 1305 UTC
by TRI International
4 Replies
1504 Views
Last post January 16, 2023, 1543 UTC
by Ray Lalleu
2 Replies
1384 Views
Last post January 29, 2023, 0600 UTC
by DaveJV
0 Replies
2594 Views
Last post October 02, 2010, 0052 UTC
by weaksigs
0 Replies
1286 Views
Last post September 09, 2023, 1453 UTC
by TRI International
8 Replies
3063 Views
Last post March 24, 2019, 1912 UTC
by Fabuffet
0 Replies
1212 Views
Last post March 28, 2019, 1054 UTC
by kris
0 Replies
1801 Views
Last post March 21, 2025, 2231 UTC
by Charlie_Dont_Surf
3 Replies
4804 Views
Last post March 22, 2025, 0047 UTC
by Charlie_Dont_Surf
9 Replies
3136 Views
Last post June 13, 2023, 2216 UTC
by kris

 

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

Locked Topic
Sticky Topic
Poll


HFUnderground Mug
HFUnderground Mug
by MitchellTimeDesigns