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
3966 Views
Last post June 02, 2018, 1228 UTC
by ChrisSmolinski
0 Replies
1230 Views
Last post May 24, 2019, 2157 UTC
by ChrisSmolinski
13 Replies
15564 Views
Last post October 04, 2013, 2308 UTC
by Nella F.
5 Replies
8718 Views
Last post September 25, 2013, 0142 UTC
by Markb
4 Replies
2643 Views
Last post February 18, 2014, 2311 UTC
by ka1iic
10 Replies
6720 Views
Last post January 13, 2016, 0317 UTC
by Antennae
11 Replies
5003 Views
Last post June 22, 2019, 1928 UTC
by ChrisSmolinski
3 Replies
1900 Views
Last post June 21, 2022, 2217 UTC
by RobRich
3 Replies
1271 Views
Last post October 14, 2019, 2222 UTC
by Matt285
1 Replies
5781 Views
Last post January 26, 2014, 1927 UTC
by BDM
2 Replies
2073 Views
Last post September 21, 2017, 2237 UTC
by Looking-Glass
9 Replies
3557 Views
Last post June 12, 2018, 1715 UTC
by Josh
6 Replies
5463 Views
Last post February 28, 2021, 1433 UTC
by Rob.
9 Replies
2232 Views
Last post May 06, 2023, 1733 UTC
by Josh
12 Replies
4236 Views
Last post June 06, 2020, 1754 UTC
by IQ_imbalance
5 Replies
3970 Views
Last post August 15, 2013, 0020 UTC
by ChrisSmolinski
0 Replies
1135 Views
Last post December 15, 2019, 2004 UTC
by ChrisSmolinski
8 Replies
2808 Views
Last post February 25, 2018, 0206 UTC
by skeezix
8 Replies
7913 Views
Last post January 15, 2013, 0444 UTC
by cyberflexx
12 Replies
1946 Views
Last post April 29, 2023, 1901 UTC
by ~SIGINT~

 

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