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
2 Replies
2147 Views
Last post April 08, 2017, 2303 UTC
by pinto vortando
2 Replies
1786 Views
Last post August 08, 2018, 2028 UTC
by pinto vortando
2 Replies
1830 Views
Last post July 22, 2018, 0937 UTC
by Looking-Glass
2 Replies
2052 Views
Last post March 08, 2020, 1419 UTC
by Kage
2 Replies
2328 Views
Last post July 07, 2018, 2359 UTC
by ulx2
Longwave Info

Started by Matt_B

2 Replies
1900 Views
Last post May 12, 2018, 2102 UTC
by Looking-Glass
2 Replies
4757 Views
Last post August 31, 2015, 1524 UTC
by ChrisSmolinski
2 Replies
2935 Views
Last post July 27, 2015, 1555 UTC
by Daniel Wyllyans
2 Replies
1160 Views
Last post April 29, 2024, 0943 UTC
by TRI International
3 Replies
2063 Views
Last post April 19, 2017, 0933 UTC
by Looking-Glass
3 Replies
1767 Views
Last post April 08, 2017, 1456 UTC
by Josh
3 Replies
1770 Views
Last post May 21, 2018, 1815 UTC
by jFarley
3 Replies
657 Views
Last post December 26, 2023, 1207 UTC
by Sky
3 Replies
2436 Views
Last post April 21, 2018, 1602 UTC
by pinto vortando
3 Replies
1772 Views
Last post February 02, 2017, 2207 UTC
by Traveling Wave
3 Replies
783 Views
Last post November 28, 2022, 1421 UTC
by Pigmeat
198 BBC?

Started by Marcy1

3 Replies
1328 Views
Last post July 20, 2022, 0326 UTC
by Charlie_Dont_Surf
3 Replies
1515 Views
Last post January 15, 2018, 0117 UTC
by refmo
3 Replies
3632 Views
Last post July 20, 2016, 2321 UTC
by Looking-Glass
3 Replies
6368 Views
Last post June 18, 2016, 0523 UTC
by Looking-Glass

 

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