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
908 Views
Last post November 08, 2018, 2315 UTC
by ChrisSmolinski
3 Replies
1511 Views
Last post January 01, 2018, 0217 UTC
by KaySeeks
0 Replies
1054 Views
Last post November 24, 2017, 2348 UTC
by ChrisSmolinski
3 Replies
1685 Views
Last post October 28, 2017, 0038 UTC
by fpeconsultant
0 Replies
1471 Views
Last post June 01, 2025, 1524 UTC
by ChrisSmolinski
0 Replies
823 Views
Last post August 01, 2018, 2330 UTC
by ChrisSmolinski
0 Replies
2960 Views
Last post March 21, 2017, 1316 UTC
by ChrisSmolinski
0 Replies
1056 Views
Last post February 26, 2019, 2324 UTC
by ChrisSmolinski
3 Replies
1268 Views
Last post February 09, 2021, 0034 UTC
by TRI International
1 Replies
1189 Views
Last post March 17, 2018, 0007 UTC
by Helicaster
0 Replies
1032 Views
Last post October 06, 2020, 2230 UTC
by ChrisSmolinski
0 Replies
986 Views
Last post December 13, 2018, 1325 UTC
by ChrisSmolinski
0 Replies
884 Views
Last post November 08, 2018, 1227 UTC
by ChrisSmolinski
1 Replies
1357 Views
Last post December 29, 2017, 0356 UTC
by ve6jy
0 Replies
949 Views
Last post December 10, 2019, 1151 UTC
by ChrisSmolinski
0 Replies
1061 Views
Last post September 16, 2018, 2320 UTC
by ChrisSmolinski
1 Replies
1609 Views
Last post October 26, 2017, 2356 UTC
by R4002
0 Replies
858 Views
Last post July 31, 2018, 2348 UTC
by ChrisSmolinski
0 Replies
693 Views
Last post February 19, 2023, 2248 UTC
by ChrisSmolinski
0 Replies
3157 Views
Last post March 20, 2017, 1232 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