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
375 Views
Last post June 27, 2025, 0344 UTC
by Radiouser
1 Replies
550 Views
Last post June 25, 2025, 0142 UTC
by ChrisLobdell
1 Replies
313 Views
Last post June 23, 2025, 1459 UTC
by flexoman61
0 Replies
252 Views
Last post June 22, 2025, 2012 UTC
by Radiouser
2 Replies
453 Views
Last post June 22, 2025, 1639 UTC
by Big Badfish Al
0 Replies
225 Views
Last post June 22, 2025, 1405 UTC
by Radiouser
0 Replies
215 Views
Last post June 22, 2025, 1324 UTC
by Radiouser
1 Replies
301 Views
Last post June 22, 2025, 0350 UTC
by shadypyro
0 Replies
252 Views
Last post June 21, 2025, 1329 UTC
by Radiouser
0 Replies
286 Views
Last post June 21, 2025, 0403 UTC
by Radiouser
1 Replies
438 Views
Last post June 21, 2025, 0247 UTC
by Radiouser
0 Replies
410 Views
Last post June 20, 2025, 1247 UTC
by Radiouser
1 Replies
631 Views
Last post June 20, 2025, 0458 UTC
by shadypyro
1 Replies
1323 Views
Last post June 18, 2025, 0148 UTC
by myteaquinn
0 Replies
646 Views
Last post June 17, 2025, 1555 UTC
by Radiouser
4 Replies
2462 Views
Last post June 17, 2025, 1125 UTC
by Molvania Poacher
1 Replies
1040 Views
Last post June 17, 2025, 1125 UTC
by Molvania Poacher
0 Replies
335 Views
Last post June 17, 2025, 1024 UTC
by TRI International
1 Replies
1154 Views
Last post June 15, 2025, 1817 UTC
by shadypyro
7 Replies
4233 Views
Last post June 15, 2025, 1528 UTC
by Molvania Poacher

 

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