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
3 Replies
855 Views
Last post December 22, 2018, 0118 UTC
by slowtrain
8 Replies
3216 Views
Last post December 09, 2014, 0010 UTC
by Hornet0123
4 Replies
1033 Views
Last post May 08, 2022, 1729 UTC
by Sealord
1 Replies
637 Views
Last post March 18, 2025, 0031 UTC
by ChrisLobdell
8 Replies
2822 Views
Last post May 24, 2014, 0056 UTC
by ByteBORG
0 Replies
700 Views
Last post April 10, 2016, 0126 UTC
by Skipmuck
4 Replies
1718 Views
Last post May 14, 2017, 2136 UTC
by hsmith77
18 Replies
2794 Views
Last post June 20, 2021, 2325 UTC
by Sealord
0 Replies
552 Views
Last post May 12, 2018, 2246 UTC
by Skipmuck
0 Replies
400 Views
Last post October 27, 2022, 1132 UTC
by Skipmuck
1 Replies
591 Views
Last post June 20, 2020, 2053 UTC
by Rob.
11 Replies
3100 Views
Last post October 24, 2015, 2308 UTC
by Nella F.
5 Replies
1490 Views
Last post December 17, 2018, 0051 UTC
by l0ngwire
1 Replies
812 Views
Last post April 20, 2019, 1532 UTC
by ChrisSmolinski
1 Replies
877 Views
Last post January 22, 2017, 1459 UTC
by ChrisSmolinski
1 Replies
1067 Views
Last post December 16, 2015, 1227 UTC
by ChrisSmolinski
8 Replies
1291 Views
Last post June 14, 2021, 0011 UTC
by Markokpik
1 Replies
745 Views
Last post March 01, 2019, 1102 UTC
by ChrisSmolinski
9 Replies
1893 Views
Last post December 18, 2016, 0428 UTC
by skeezix
0 Replies
635 Views
Last post April 20, 2020, 0015 UTC
by Skipmuck

 

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