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
332 Views
Last post April 27, 2023, 1731 UTC
by ChrisSmolinski
0 Replies
332 Views
Last post March 04, 2023, 1318 UTC
by ChrisSmolinski
0 Replies
332 Views
Last post February 19, 2024, 2223 UTC
by Ray Lalleu
0 Replies
332 Views
Last post March 23, 2023, 0002 UTC
by Skipmuck
0 Replies
333 Views
Last post November 06, 2022, 1617 UTC
by ChrisSmolinski
0 Replies
333 Views
Last post December 02, 2022, 2259 UTC
by Chuck54
1 Replies
333 Views
Last post April 26, 2025, 0027 UTC
by Professor
0 Replies
333 Views
Last post December 31, 2022, 0049 UTC
by Shortwave_Listener
1 Replies
333 Views
Last post November 11, 2022, 2310 UTC
by hsmith77
0 Replies
333 Views
Last post June 23, 2024, 0150 UTC
by myteaquinn
1 Replies
334 Views
Last post October 17, 2024, 2114 UTC
by canswl
0 Replies
334 Views
Last post July 03, 2024, 1238 UTC
by ChrisSmolinski
0 Replies
334 Views
Last post June 18, 2022, 2219 UTC
by ChrisSmolinski
1 Replies
334 Views
Last post April 10, 2023, 0050 UTC
by myteaquinn
0 Replies
334 Views
Last post October 09, 2023, 0028 UTC
by DangerKitty
1 Replies
334 Views
Last post January 18, 2025, 1605 UTC
by Ron Hunsicker
0 Replies
334 Views
Last post December 03, 2023, 1515 UTC
by ChrisSmolinski
0 Replies
335 Views
Last post September 11, 2022, 1851 UTC
by ChrisSmolinski
3 Replies
335 Views
Last post February 16, 2025, 2359 UTC
by dxwingr
0 Replies
335 Views
Last post October 06, 2024, 2121 UTC
by myteaquinn

 

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