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
3128 Views
Last post November 17, 2023, 0658 UTC
by BoomboxDX
2 Replies
1691 Views
Last post November 17, 2023, 2229 UTC
by europirate
1 Replies
1638 Views
Last post August 22, 2020, 1939 UTC
by Josh
0 Replies
1558 Views
Last post August 26, 2025, 1745 UTC
by ThaDood
14 Replies
6491 Views
Last post October 15, 2018, 1607 UTC
by ChrisSmolinski
2 Replies
2578 Views
Last post July 25, 2021, 1830 UTC
by ThaDood
0 Replies
1765 Views
Last post April 27, 2018, 1719 UTC
by ThaDood
8 Replies
8075 Views
Last post February 26, 2025, 0240 UTC
by RobRich
9 Replies
4406 Views
Last post September 01, 2025, 1651 UTC
by Shortwave_Listener
1 Replies
1787 Views
Last post January 10, 2022, 1929 UTC
by Josh
0 Replies
2271 Views
Last post February 27, 2025, 2007 UTC
by ThaDood
5 Replies
2335 Views
Last post March 19, 2019, 1639 UTC
by BoomboxDX
0 Replies
626 Views
Last post September 22, 2025, 1523 UTC
by ThaDood
23 Replies
14563 Views
Last post October 17, 2018, 1925 UTC
by ThaDood
1 Replies
1961 Views
Last post March 19, 2019, 1642 UTC
by BoomboxDX
2 Replies
2129 Views
Last post April 10, 2023, 2111 UTC
by Stretchyman
16 Replies
9426 Views
Last post January 19, 2020, 2100 UTC
by redhat
31 Replies
10753 Views
Last post September 09, 2020, 0202 UTC
by BoomboxDX
0 Replies
425 Views
Last post September 25, 2025, 1836 UTC
by ThaDood
6 Replies
3515 Views
Last post July 22, 2022, 2330 UTC
by JustGreg

 

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