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
8 Replies
1409 Views
Last post September 28, 2019, 2346 UTC
by Treehouse SWL
8 Replies
2418 Views
Last post January 01, 2014, 1500 UTC
by ChrisSmolinski
8 Replies
1443 Views
Last post September 18, 2023, 0138 UTC
by William Hassig
8 Replies
1610 Views
Last post March 21, 2018, 2228 UTC
by Helicaster
8 Replies
1563 Views
Last post September 28, 2019, 0015 UTC
by blw
8 Replies
1454 Views
Last post March 12, 2021, 0050 UTC
by myteaquinn
8 Replies
4285 Views
Last post December 28, 2013, 1727 UTC
by ChrisLobdell
8 Replies
1099 Views
Last post January 12, 2025, 0323 UTC
by N2MLP
8 Replies
969 Views
Last post September 13, 2023, 2347 UTC
by N2MLP
8 Replies
1357 Views
Last post March 09, 2021, 1906 UTC
by Davep
8 Replies
1915 Views
Last post October 31, 2015, 2050 UTC
by Skipmuck
8 Replies
2505 Views
Last post December 25, 2016, 1353 UTC
by Yankee Charlie
8 Replies
758 Views
Last post January 13, 2025, 0112 UTC
by Crater Eddie
8 Replies
3593 Views
Last post December 23, 2013, 2353 UTC
by caylorman
8 Replies
2838 Views
Last post December 22, 2013, 2040 UTC
by The Insomniac
8 Replies
2170 Views
Last post December 24, 2016, 1543 UTC
by Tuco
8 Replies
2139 Views
Last post March 07, 2018, 0100 UTC
by Barycenter
8 Replies
2265 Views
Last post September 06, 2023, 0328 UTC
by dxace1
8 Replies
1645 Views
Last post March 05, 2018, 2318 UTC
by Ray Lalleu
8 Replies
1678 Views
Last post February 21, 2021, 2103 UTC
by Skipmuck

 

Normal Topic
Hot Topic (More than 15 replies)
Very Hot Topic (More than 25 replies)

Locked Topic
Sticky Topic
Poll


HFUnderground T-Shirt
HFUnderground T-Shirt
by MitchellTimeDesigns