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
12 Replies
2601 Views
Last post November 02, 2023, 0219 UTC
by myteaquinn
1 Replies
1273 Views
Last post August 14, 2016, 1507 UTC
by ChrisSmolinski
3 Replies
1485 Views
Last post April 07, 2018, 1658 UTC
by PirateSWL
12 Replies
2458 Views
Last post October 31, 2023, 0106 UTC
by ✠ Blue Max
3 Replies
1645 Views
Last post April 29, 2015, 1205 UTC
by ChrisSmolinski
8 Replies
1304 Views
Last post November 18, 2023, 2136 UTC
by N2MLP
9 Replies
2897 Views
Last post May 30, 2016, 1329 UTC
by aquabat
2 Replies
874 Views
Last post April 13, 2020, 2028 UTC
by Radio Star
6 Replies
1587 Views
Last post February 07, 2020, 2228 UTC
by Pigmeat
4 Replies
1176 Views
Last post September 11, 2019, 2257 UTC
by texas1dxer
1 Replies
665 Views
Last post August 24, 2019, 1825 UTC
by Andrew Yoder
4 Replies
1211 Views
Last post August 24, 2019, 1935 UTC
by Andrew Yoder
14 Replies
1816 Views
Last post October 31, 2023, 2301 UTC
by Shortwave_Listener
12 Replies
4360 Views
Last post October 28, 2015, 1523 UTC
by ChrisSmolinski
4 Replies
1254 Views
Last post April 29, 2016, 2257 UTC
by JoeFLIPS
0 Replies
1020 Views
Last post December 28, 2016, 2332 UTC
by refmo
16 Replies
2522 Views
Last post June 13, 2021, 0232 UTC
by Paul Turkk
6 Replies
1445 Views
Last post October 15, 2021, 1339 UTC
by Andrew Yoder
5 Replies
2724 Views
Last post February 18, 2024, 1404 UTC
by Sarge94
5 Replies
1094 Views
Last post October 19, 2021, 1419 UTC
by DaddyDave

 

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