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
1 Replies
1185 Views
Last post July 06, 2018, 1618 UTC
by ChrisSmolinski
0 Replies
1185 Views
Last post March 09, 2019, 2351 UTC
by Skipmuck
1 Replies
1184 Views
Last post August 12, 2018, 2334 UTC
by ChrisSmolinski
1 Replies
1184 Views
Last post March 08, 2021, 0053 UTC
by Skipmuck
0 Replies
1183 Views
Last post March 31, 2018, 0152 UTC
by Helicaster
1 Replies
1183 Views
Last post April 16, 2018, 2359 UTC
by Daniel Wyllyans
2 Replies
1183 Views
Last post February 16, 2023, 0534 UTC
by Shortwave_Listener
0 Replies
1182 Views
Last post April 10, 2018, 0036 UTC
by Daniel Wyllyans
0 Replies
1182 Views
Last post March 31, 2022, 0105 UTC
by cgalazt
1 Replies
1182 Views
Last post January 20, 2020, 2247 UTC
by Skipmuck
4 Replies
1181 Views
Last post April 23, 2022, 0302 UTC
by canswl
0 Replies
1181 Views
Last post January 23, 2020, 1625 UTC
by ChrisSmolinski
0 Replies
1180 Views
Last post September 08, 2021, 2329 UTC
by Skipmuck
0 Replies
1179 Views
Last post June 16, 2018, 2318 UTC
by Ray Lalleu
1 Replies
1179 Views
Last post November 13, 2019, 2339 UTC
by ChrisSmolinski
0 Replies
1177 Views
Last post March 12, 2018, 1325 UTC
by ChrisSmolinski
0 Replies
1177 Views
Last post June 30, 2018, 1507 UTC
by ChrisSmolinski
1 Replies
1177 Views
Last post December 02, 2021, 2225 UTC
by Skipmuck
0 Replies
1177 Views
Last post February 24, 2020, 1636 UTC
by Daniel Wyllyans
0 Replies
1177 Views
Last post October 06, 2020, 2230 UTC
by ChrisSmolinski

 

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