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
2 Replies
292 Views
Last post August 13, 2023, 2039 UTC
by N2MLP
0 Replies
246 Views
Last post November 15, 2023, 1633 UTC
by europirate
1 Replies
343 Views
Last post February 12, 2023, 1140 UTC
by Ray Lalleu
0 Replies
171 Views
Last post December 31, 2024, 1157 UTC
by europirate
1 Replies
278 Views
Last post June 25, 2023, 1903 UTC
by Ray Lalleu
4 Replies
466 Views
Last post October 27, 2024, 0208 UTC
by Quasar
1 Replies
848 Views
Last post September 16, 2024, 1948 UTC
by Ray Lalleu
1 Replies
338 Views
Last post May 21, 2023, 1024 UTC
by FOX
2 Replies
330 Views
Last post September 23, 2023, 1810 UTC
by Ray Lalleu
1 Replies
239 Views
Last post March 24, 2024, 1035 UTC
by Ray Lalleu
0 Replies
264 Views
Last post November 17, 2023, 2234 UTC
by europirate
0 Replies
234 Views
Last post June 02, 2024, 1213 UTC
by europirate
4 Replies
340 Views
Last post February 08, 2025, 1943 UTC
by ciasteczkowypotwor
1 Replies
293 Views
Last post September 24, 2023, 2150 UTC
by N2MLP
2 Replies
472 Views
Last post June 04, 2022, 1233 UTC
by europirate
0 Replies
146 Views
Last post January 03, 2025, 1457 UTC
by europirate
1 Replies
246 Views
Last post August 20, 2023, 0741 UTC
by Ray Lalleu
1 Replies
253 Views
Last post July 22, 2023, 1952 UTC
by Ray Lalleu
1 Replies
457 Views
Last post May 22, 2022, 1254 UTC
by Normz
3 Replies
578 Views
Last post August 28, 2022, 1717 UTC
by FOX

 

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