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
1575 Views
Last post March 01, 2018, 0220 UTC
by Kilokat7
5 Replies
1486 Views
Last post December 25, 2020, 2327 UTC
by ThaDood
1 Replies
759 Views
Last post November 07, 2020, 1307 UTC
by ChrisSmolinski
9 Replies
5908 Views
Last post October 13, 2012, 1747 UTC
by jFarley
17 Replies
2778 Views
Last post August 27, 2022, 0321 UTC
by Shortwave_Listener
10 Replies
1683 Views
Last post October 19, 2019, 1930 UTC
by JimIO
0 Replies
235 Views
Last post February 04, 2024, 0532 UTC
by Kilokat7
6 Replies
1465 Views
Last post December 25, 2020, 1649 UTC
by ChrisSmolinski
1 Replies
1329 Views
Last post September 13, 2014, 0343 UTC
by Pigmeat
0 Replies
1420 Views
Last post September 29, 2012, 0233 UTC
by Kilokat7
1 Replies
848 Views
Last post October 14, 2019, 2137 UTC
by ChrisSmolinski
0 Replies
1592 Views
Last post February 21, 2018, 0127 UTC
by Kilokat7
0 Replies
367 Views
Last post November 23, 2023, 0415 UTC
by Kilokat7
2 Replies
4422 Views
Last post February 26, 2012, 0337 UTC
by skeezix
3 Replies
664 Views
Last post November 23, 2023, 0144 UTC
by Kilokat7
3 Replies
2278 Views
Last post February 19, 2012, 0520 UTC
by BDM
2 Replies
1398 Views
Last post February 18, 2018, 2357 UTC
by ChrisSmolinski
2 Replies
1841 Views
Last post April 27, 2013, 0418 UTC
by RCCI
1 Replies
1578 Views
Last post December 28, 2018, 0019 UTC
by Kilokat7
3 Replies
612 Views
Last post November 21, 2023, 1143 UTC
by ChrisSmolinski

 

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