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
8 Replies
2495 Views
Last post October 12, 2013, 1551 UTC
by caodwolf
11 Replies
2120 Views
Last post December 05, 2016, 0352 UTC
by Matt_B
6 Replies
1714 Views
Last post June 16, 2017, 2258 UTC
by hsmith77
0 Replies
472 Views
Last post December 03, 2023, 2222 UTC
by Skipmuck
0 Replies
519 Views
Last post July 16, 2020, 2325 UTC
by Skipmuck
0 Replies
1189 Views
Last post May 15, 2025, 0528 UTC
by Shortwave_Listener
0 Replies
741 Views
Last post January 07, 2013, 1639 UTC
by ChrisSmolinski
0 Replies
439 Views
Last post June 25, 2023, 2302 UTC
by ChrisSmolinski
0 Replies
921 Views
Last post January 15, 2023, 2326 UTC
by Zane
0 Replies
616 Views
Last post April 20, 2020, 0015 UTC
by Skipmuck
0 Replies
332 Views
Last post March 09, 2023, 2245 UTC
by Ray Lalleu
0 Replies
705 Views
Last post September 28, 2013, 1426 UTC
by ChrisSmolinski
0 Replies
901 Views
Last post September 08, 2012, 1407 UTC
by ChrisSmolinski
0 Replies
785 Views
Last post May 11, 2014, 0035 UTC
by ChrisSmolinski
0 Replies
1020 Views
Last post February 02, 2012, 2310 UTC
by ChrisSmolinski
0 Replies
1021 Views
Last post November 19, 2011, 1912 UTC
by ChrisSmolinski
0 Replies
330 Views
Last post April 08, 2024, 0029 UTC
by Ray Lalleu
0 Replies
506 Views
Last post July 19, 2019, 2338 UTC
by ChrisSmolinski
0 Replies
510 Views
Last post April 10, 2023, 1215 UTC
by ChrisSmolinski
0 Replies
458 Views
Last post October 11, 2020, 2247 UTC
by Skipmuck

 

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