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
11 Replies
2961 Views
Last post March 16, 2015, 1212 UTC
by ChrisSmolinski
15 Replies
4348 Views
Last post June 08, 2015, 0141 UTC
by Ron Hunsicker
2 Replies
1417 Views
Last post August 13, 2012, 0341 UTC
by Shawndx
16 Replies
10977 Views
Last post November 05, 2015, 0241 UTC
by oly1959
1 Replies
1385 Views
Last post August 30, 2010, 0230 UTC
by Zoidberg
5 Replies
1631 Views
Last post January 02, 2016, 1748 UTC
by aquabat
5 Replies
1825 Views
Last post October 08, 2013, 1147 UTC
by ChrisSmolinski
1 Replies
403 Views
Last post February 02, 2025, 1711 UTC
by N2MLP
9 Replies
4963 Views
Last post April 19, 2017, 0250 UTC
by Zoidberg
16 Replies
4553 Views
Last post July 04, 2013, 1514 UTC
by ChrisSmolinski
6 Replies
1629 Views
Last post December 22, 2016, 1323 UTC
by ChrisSmolinski
22 Replies
5557 Views
Last post January 16, 2015, 2208 UTC
by RCCI
9 Replies
2674 Views
Last post August 09, 2013, 1301 UTC
by ChrisSmolinski
13 Replies
3429 Views
Last post February 26, 2013, 0136 UTC
by Zane
7 Replies
2131 Views
Last post October 02, 2012, 2320 UTC
by Nella F.
21 Replies
1660 Views
Last post January 26, 2025, 2223 UTC
by Crater Eddie
18 Replies
3425 Views
Last post May 30, 2018, 2238 UTC
by jFarley
13 Replies
3515 Views
Last post March 14, 2014, 1213 UTC
by ChrisSmolinski
9 Replies
3616 Views
Last post July 06, 2015, 1238 UTC
by ChrisSmolinski
17 Replies
4753 Views
Last post July 03, 2015, 0333 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 Garden Flag
by MitchellTimeDesigns