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
2554 Views
Last post November 09, 2018, 1456 UTC
by Token
4 Replies
6007 Views
Last post April 30, 2017, 1255 UTC
by Token
0 Replies
1292 Views
Last post September 09, 2020, 0124 UTC
by Traveling Wave
3 Replies
1120 Views
Last post November 04, 2022, 1309 UTC
by Token
2 Replies
1395 Views
Last post May 02, 2018, 0130 UTC
by Traveling Wave
0 Replies
1346 Views
Last post April 18, 2018, 2358 UTC
by Traveling Wave
4 Replies
3350 Views
Last post January 08, 2019, 2234 UTC
by Strange Beacons
5 Replies
4277 Views
Last post February 14, 2019, 0054 UTC
by Token
0 Replies
754 Views
Last post July 19, 2022, 0820 UTC
by TRI International
4 Replies
1099 Views
Last post February 27, 2022, 0255 UTC
by Dag
0 Replies
958 Views
Last post May 25, 2022, 0233 UTC
by turbocode
1 Replies
1402 Views
Last post November 07, 2020, 2211 UTC
by ka3jjz
10 Replies
2823 Views
Last post June 27, 2018, 2109 UTC
by Josh
0 Replies
2940 Views
Last post January 16, 2019, 0312 UTC
by ultravista
2 Replies
1551 Views
Last post September 11, 2021, 2306 UTC
by ulx2
3 Replies
3879 Views
Last post September 20, 2017, 1139 UTC
by ulx2
0 Replies
1691 Views
Last post August 11, 2017, 1705 UTC
by ulx2
0 Replies
17143 Views
Last post August 07, 2019, 0551 UTC
by ulx2
3 Replies
1829 Views
Last post May 21, 2018, 1654 UTC
by Josh
6 Replies
1747 Views
Last post October 12, 2022, 1813 UTC
by UncleJohn

 

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