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
3484 Views
Last post October 15, 2014, 1922 UTC
by l0ngwire
4 Replies
623 Views
Last post June 29, 2023, 1630 UTC
by kris
4 Replies
6079 Views
Last post May 27, 2013, 2158 UTC
by Token
4 Replies
2108 Views
Last post February 13, 2019, 2249 UTC
by Strange Beacons
V15 recording

Started by bclman

4 Replies
3693 Views
Last post August 24, 2016, 1343 UTC
by Ary-B
4 Replies
1428 Views
Last post December 14, 2018, 2226 UTC
by shadypyro
4 Replies
3156 Views
Last post March 29, 2019, 1747 UTC
by Ary-B
4 Replies
2610 Views
Last post December 15, 2012, 2220 UTC
by Ary-B
4 Replies
2455 Views
Last post January 13, 2014, 2328 UTC
by Token
4 Replies
3263 Views
Last post March 07, 2016, 0916 UTC
by Looking-Glass
4 Replies
1737 Views
Last post April 23, 2018, 1323 UTC
by Token
4 Replies
1912 Views
Last post June 04, 2016, 0116 UTC
by Terry
4 Replies
2185 Views
Last post January 22, 2013, 1302 UTC
by Sealord
4 Replies
2652 Views
Last post October 12, 2013, 0304 UTC
by EchoDeltaXray
4 Replies
2572 Views
Last post March 31, 2018, 1616 UTC
by MDK2
4 Replies
2639 Views
Last post June 06, 2012, 1826 UTC
by Token
4 Replies
6894 Views
Last post May 26, 2012, 2126 UTC
by Token
4 Replies
2964 Views
Last post July 26, 2013, 2017 UTC
by Tim537
4 Replies
1814 Views
Last post May 01, 2021, 1425 UTC
by Token
4 Replies
4563 Views
Last post August 01, 2015, 0108 UTC
by Zoidberg

 

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