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
28 Replies
1989 Views
Last post November 10, 2024, 1523 UTC
by ChrisSmolinski
28 Replies
2070 Views
Last post December 08, 2024, 0133 UTC
by Markokpik
10 Replies
853 Views
Last post June 16, 2023, 2350 UTC
by Markokpik
14 Replies
1407 Views
Last post February 05, 2024, 0132 UTC
by Sealord
2 Replies
468 Views
Last post June 17, 2023, 0038 UTC
by Andrew Yoder
6 Replies
767 Views
Last post June 20, 2023, 2335 UTC
by TRI International
5 Replies
4363 Views
Last post December 18, 2024, 2121 UTC
by Sealord
25 Replies
3128 Views
Last post May 25, 2025, 0046 UTC
by Quasar
10 Replies
1294 Views
Last post October 10, 2024, 1026 UTC
by ChrisSmolinski
12 Replies
1160 Views
Last post April 29, 2024, 0024 UTC
by Molvania Poacher
9 Replies
1330 Views
Last post March 23, 2025, 1455 UTC
by Chuck54
4 Replies
601 Views
Last post June 20, 2023, 1404 UTC
by ~SIGINT~
2 Replies
725 Views
Last post January 29, 2022, 0319 UTC
by Bali_Frank
12 Replies
1748 Views
Last post November 11, 2023, 0042 UTC
by Dr. Strangelove
0 Replies
366 Views
Last post May 13, 2024, 1215 UTC
by ChrisSmolinski
1 Replies
536 Views
Last post April 25, 2024, 0327 UTC
by ButchKidd
8 Replies
837 Views
Last post August 18, 2024, 0315 UTC
by N2MLP
4 Replies
968 Views
Last post March 05, 2024, 1528 UTC
by Paul65
14 Replies
2158 Views
Last post March 09, 2024, 0124 UTC
by refmo
0 Replies
426 Views
Last post April 26, 2024, 0326 UTC
by WA0093SWL

 

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