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
1751 Views
Last post October 09, 2010, 0402 UTC
by Shortwave_America
0 Replies
1745 Views
Last post October 10, 2010, 2252 UTC
by Shortwave_America
0 Replies
975 Views
Last post March 01, 2014, 2013 UTC
by skeezix
2 Replies
1427 Views
Last post March 04, 2020, 0006 UTC
by pinto vortando
0 Replies
937 Views
Last post May 08, 2023, 1149 UTC
by ChrisSmolinski
1 Replies
1147 Views
Last post November 30, 2015, 1118 UTC
by Oliver
0 Replies
1280 Views
Last post November 20, 2014, 0351 UTC
by VK3BVW
2 Replies
2073 Views
Last post April 13, 2015, 0115 UTC
by VK3BVW
4 Replies
1275 Views
Last post December 11, 2022, 2221 UTC
by ChrisSmolinski
2 Replies
2641 Views
Last post February 23, 2015, 2241 UTC
by CoolAM Radio
1 Replies
1356 Views
Last post May 15, 2014, 1755 UTC
by Fansome
3 Replies
1641 Views
Last post March 10, 2013, 0419 UTC
by olddxer
5 Replies
1785 Views
Last post December 24, 2014, 1656 UTC
by ByteBORG
7 Replies
2586 Views
Last post January 12, 2015, 2045 UTC
by ChrisSmolinski
13 Replies
3839 Views
Last post January 04, 2016, 1637 UTC
by JoeFLIPS
4 Replies
1380 Views
Last post January 05, 2017, 1736 UTC
by redhat
2 Replies
2219 Views
Last post January 31, 2015, 0155 UTC
by RCCI
2 Replies
135 Views
Last post September 24, 2025, 2118 UTC
by ChrisSmolinski
0 Replies
725 Views
Last post February 05, 2021, 1539 UTC
by ChrisSmolinski
2 Replies
1533 Views
Last post January 28, 2014, 0003 UTC
by Fansome

 

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