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
4241 Views
Last post February 27, 2015, 0126 UTC
by Token
0 Replies
1845 Views
Last post July 02, 2018, 0022 UTC
by Token
0 Replies
2004 Views
Last post August 12, 2020, 2256 UTC
by Token
0 Replies
2630 Views
Last post March 13, 2016, 1400 UTC
by Token
1 Replies
1995 Views
Last post June 23, 2018, 1539 UTC
by GC
MOVED: 11015 USB

Started by Token

0 Replies
1636 Views
Last post June 21, 2018, 1601 UTC
by Token
0 Replies
2818 Views
Last post March 07, 2016, 0106 UTC
by Token
MOVED: 6974.4 CW

Started by Token

0 Replies
3380 Views
Last post March 02, 2019, 1627 UTC
by Token
0 Replies
1368 Views
Last post February 29, 2024, 0801 UTC
by Token
0 Replies
1596 Views
Last post February 05, 2022, 1700 UTC
by Token
MOVED: ON8A

Started by Token

0 Replies
1838 Views
Last post January 27, 2017, 2208 UTC
by Token
0 Replies
1301 Views
Last post October 25, 2022, 1205 UTC
by Token
0 Replies
1956 Views
Last post February 15, 2021, 0017 UTC
by Token
0 Replies
2553 Views
Last post May 18, 2020, 1322 UTC
by Token
0 Replies
1658 Views
Last post May 02, 2018, 1207 UTC
by Token
0 Replies
2202 Views
Last post January 29, 2025, 0313 UTC
by Token
0 Replies
1817 Views
Last post October 21, 2023, 2246 UTC
by Token
49 Replies
19050 Views
Last post May 04, 2020, 1326 UTC
by Token
0 Replies
2244 Views
Last post December 24, 2024, 1811 UTC
by Token
0 Replies
2071 Views
Last post December 14, 2016, 0321 UTC
by Token

 

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