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
0 Replies
545 Views
Last post March 24, 2022, 2058 UTC
by skeezix
0 Replies
597 Views
Last post March 24, 2019, 0146 UTC
by skeezix
0 Replies
1478 Views
Last post March 23, 2025, 2216 UTC
by skeezix
0 Replies
1201 Views
Last post March 23, 2024, 1819 UTC
by skeezix
0 Replies
581 Views
Last post March 23, 2022, 1355 UTC
by skeezix
0 Replies
583 Views
Last post March 23, 2019, 0048 UTC
by skeezix
0 Replies
1818 Views
Last post March 22, 2025, 1430 UTC
by skeezix
0 Replies
544 Views
Last post March 22, 2022, 1325 UTC
by skeezix
0 Replies
557 Views
Last post March 22, 2019, 0257 UTC
by skeezix
0 Replies
1806 Views
Last post March 21, 2025, 1333 UTC
by skeezix
0 Replies
544 Views
Last post March 22, 2022, 0320 UTC
by skeezix
0 Replies
563 Views
Last post March 04, 2019, 0050 UTC
by skeezix
0 Replies
2043 Views
Last post March 03, 2025, 1414 UTC
by skeezix
0 Replies
973 Views
Last post March 03, 2024, 1507 UTC
by skeezix
0 Replies
537 Views
Last post March 03, 2022, 1639 UTC
by skeezix
0 Replies
1182 Views
Last post March 03, 2017, 0037 UTC
by wyzguy
0 Replies
580 Views
Last post March 21, 2019, 0114 UTC
by skeezix
0 Replies
1808 Views
Last post March 20, 2025, 1358 UTC
by skeezix
0 Replies
1177 Views
Last post March 20, 2024, 1427 UTC
by skeezix
0 Replies
588 Views
Last post March 20, 2022, 1649 UTC
by skeezix

 

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