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
553 Views
Last post February 10, 2019, 1031 UTC
by Ray Lalleu
0 Replies
133 Views
Last post December 01, 2025, 0906 UTC
by Ray Lalleu
1 Replies
575 Views
Last post March 15, 2022, 1853 UTC
by kris
0 Replies
411 Views
Last post June 23, 2020, 1335 UTC
by Ray Lalleu
0 Replies
373 Views
Last post May 30, 2025, 1731 UTC
by Ray Lalleu
1 Replies
303 Views
Last post August 15, 2023, 2327 UTC
by N2MLP
0 Replies
447 Views
Last post August 30, 2021, 2334 UTC
by Ray Lalleu
1 Replies
576 Views
Last post December 14, 2019, 1504 UTC
by kris
0 Replies
618 Views
Last post September 19, 2018, 1834 UTC
by Ray Lalleu
0 Replies
350 Views
Last post November 30, 2023, 1931 UTC
by Ray Lalleu
0 Replies
255 Views
Last post December 18, 2022, 0931 UTC
by Ray Lalleu
0 Replies
569 Views
Last post December 09, 2021, 1301 UTC
by Ray Lalleu
0 Replies
451 Views
Last post February 06, 2021, 0810 UTC
by Ray Lalleu
0 Replies
452 Views
Last post April 02, 2020, 1923 UTC
by Ray Lalleu
0 Replies
436 Views
Last post April 13, 2019, 1520 UTC
by Ray Lalleu
0 Replies
280 Views
Last post March 02, 2025, 2029 UTC
by Ray Lalleu
0 Replies
407 Views
Last post April 06, 2024, 1542 UTC
by Ray Lalleu
2 Replies
564 Views
Last post May 14, 2021, 1900 UTC
by kris
1 Replies
420 Views
Last post July 31, 2022, 0929 UTC
by europirate
2 Replies
644 Views
Last post November 09, 2018, 1645 UTC
by Ray Lalleu

 

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