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
607 Views
Last post April 29, 2020, 1335 UTC
by ChrisSmolinski
0 Replies
887 Views
Last post December 11, 2011, 0008 UTC
by ChrisSmolinski
2 Replies
1459 Views
Last post December 27, 2016, 0210 UTC
by Antennae
0 Replies
905 Views
Last post August 07, 2013, 1305 UTC
by ChrisSmolinski
9 Replies
3051 Views
Last post March 18, 2015, 0144 UTC
by JohnS
3 Replies
1101 Views
Last post December 22, 2019, 1439 UTC
by Ray Lalleu
3 Replies
3380 Views
Last post April 16, 2008, 0248 UTC
by Zane
1 Replies
1112 Views
Last post April 02, 2011, 2057 UTC
by textim
7 Replies
1557 Views
Last post March 11, 2019, 0427 UTC
by Pigmeat
1 Replies
954 Views
Last post December 08, 2013, 1745 UTC
by Echo_One
8 Replies
4582 Views
Last post September 23, 2015, 0126 UTC
by caodwolf
0 Replies
455 Views
Last post January 26, 2018, 2353 UTC
by ChrisSmolinski
0 Replies
325 Views
Last post December 23, 2022, 2052 UTC
by ChrisSmolinski
3 Replies
476 Views
Last post November 24, 2024, 1630 UTC
by N2MLP
1 Replies
1164 Views
Last post September 23, 2015, 1836 UTC
by jFarley
4 Replies
1640 Views
Last post January 21, 2012, 0128 UTC
by Sealord
0 Replies
844 Views
Last post November 01, 2014, 1512 UTC
by ChrisSmolinski
0 Replies
687 Views
Last post February 02, 2017, 1346 UTC
by ChrisSmolinski
0 Replies
633 Views
Last post August 18, 2019, 1503 UTC
by ChrisSmolinski
7 Replies
1766 Views
Last post April 16, 2016, 2142 UTC
by JoeFLIPS

 

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