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
6 Replies
1731 Views
Last post March 11, 2019, 1024 UTC
by RainBrandy
0 Replies
609 Views
Last post June 23, 2021, 1402 UTC
by ChrisSmolinski
3 Replies
2535 Views
Last post May 16, 2014, 1924 UTC
by Evil Elvis
1 Replies
461 Views
Last post November 24, 2023, 0902 UTC
by Skipmuck
1 Replies
787 Views
Last post September 20, 2019, 1429 UTC
by RainBrandy
0 Replies
791 Views
Last post December 15, 2017, 2248 UTC
by ChrisSmolinski
3 Replies
645 Views
Last post December 19, 2022, 1658 UTC
by Erik Mattson
0 Replies
1707 Views
Last post April 28, 2012, 1359 UTC
by ChrisSmolinski
3 Replies
938 Views
Last post October 08, 2019, 1841 UTC
by Pigmeat
1 Replies
553 Views
Last post April 27, 2022, 1935 UTC
by Skipmuck
0 Replies
533 Views
Last post June 01, 2019, 1553 UTC
by ChrisSmolinski
5 Replies
1569 Views
Last post February 03, 2016, 1217 UTC
by Rafman
0 Replies
474 Views
Last post September 06, 2021, 2043 UTC
by ChrisSmolinski
0 Replies
432 Views
Last post February 27, 2024, 1523 UTC
by ChrisSmolinski
2 Replies
1756 Views
Last post December 10, 2014, 0311 UTC
by jFarley
3 Replies
1544 Views
Last post January 03, 2019, 2219 UTC
by Skipmuck
0 Replies
441 Views
Last post May 30, 2025, 1244 UTC
by ChrisSmolinski
2 Replies
1469 Views
Last post March 13, 2016, 1605 UTC
by Jari Finland
5 Replies
1403 Views
Last post February 08, 2019, 2315 UTC
by MDK2
1 Replies
549 Views
Last post May 30, 2021, 1242 UTC
by Bali_Frank

 

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