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
596 Views
Last post February 25, 2017, 1427 UTC
by ChrisSmolinski
0 Replies
596 Views
Last post April 24, 2017, 2156 UTC
by PirateSWL
0 Replies
596 Views
Last post May 16, 2020, 0128 UTC
by PirateSWL
1 Replies
596 Views
Last post May 08, 2020, 1327 UTC
by ChrisSmolinski
0 Replies
596 Views
Last post November 28, 2020, 0129 UTC
by Radio Star
1 Replies
596 Views
Last post September 12, 2020, 1253 UTC
by flexoman61
0 Replies
596 Views
Last post June 10, 2019, 1242 UTC
by ChrisSmolinski
3 Replies
597 Views
Last post May 14, 2023, 1919 UTC
by K1MLP
2 Replies
597 Views
Last post July 10, 2021, 2305 UTC
by TCBS
2 Replies
597 Views
Last post May 27, 2020, 1600 UTC
by ChrisSmolinski
5 Replies
597 Views
Last post November 25, 2024, 2244 UTC
by myteaquinn
2 Replies
597 Views
Last post July 06, 2019, 1757 UTC
by dxace1
2 Replies
597 Views
Last post March 05, 2022, 0258 UTC
by KMD3HR
0 Replies
597 Views
Last post July 16, 2017, 2146 UTC
by ChrisSmolinski
0 Replies
597 Views
Last post June 28, 2020, 1719 UTC
by ChrisSmolinski
2 Replies
597 Views
Last post September 19, 2022, 0252 UTC
by Pigmeat
0 Replies
597 Views
Last post November 25, 2017, 1833 UTC
by ChrisSmolinski
0 Replies
597 Views
Last post April 27, 2018, 1425 UTC
by ChrisSmolinski
4 Replies
597 Views
Last post February 04, 2025, 1737 UTC
by Radio Star
1 Replies
597 Views
Last post January 19, 2019, 0251 UTC
by MDK2

 

Normal Topic
Hot Topic (More than 15 replies)
Very Hot Topic (More than 25 replies)

Locked Topic
Sticky Topic
Poll


HFUnderground T-Shirt
HFUnderground Garden Flag
by MitchellTimeDesigns