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
960 Views
Last post April 01, 2023, 1910 UTC
by N2MLP
1 Replies
1075 Views
Last post February 24, 2019, 1559 UTC
by ChrisSmolinski
1 Replies
1039 Views
Last post February 20, 2019, 0045 UTC
by Daniel Wyllyans
1 Replies
852 Views
Last post March 15, 2023, 1202 UTC
by ChrisSmolinski
1 Replies
1001 Views
Last post March 06, 2023, 1539 UTC
by Shortwave_Listener
1 Replies
876 Views
Last post February 15, 2023, 0303 UTC
by Shortwave_Listener
1 Replies
1122 Views
Last post January 31, 2023, 2331 UTC
by Skipmuck
1 Replies
871 Views
Last post January 31, 2023, 0002 UTC
by TheHappyWanker
1 Replies
1001 Views
Last post February 07, 2019, 1309 UTC
by ChrisSmolinski
1 Replies
786 Views
Last post January 27, 2023, 1952 UTC
by Shortwave_Listener
1 Replies
1189 Views
Last post February 05, 2019, 2133 UTC
by andres87
1 Replies
1133 Views
Last post February 03, 2019, 0203 UTC
by andres87
1 Replies
869 Views
Last post January 20, 2023, 2207 UTC
by TRI International
1 Replies
826 Views
Last post January 17, 2023, 2204 UTC
by Daniel Wyllyans
1 Replies
1181 Views
Last post January 31, 2019, 1241 UTC
by ChrisSmolinski
1 Replies
1228 Views
Last post January 29, 2019, 1100 UTC
by ChrisSmolinski
1 Replies
938 Views
Last post December 12, 2022, 1557 UTC
by Shortwave_Listener
1 Replies
956 Views
Last post November 06, 2022, 2315 UTC
by Shortwave_Listener
1 Replies
1057 Views
Last post January 21, 2019, 2350 UTC
by Ray Lalleu
1 Replies
1137 Views
Last post January 21, 2019, 1257 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 House Flag
by MitchellTimeDesigns