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
1922 Views
Last post April 20, 2019, 1932 UTC
by Humat
4 Replies
1927 Views
Last post November 14, 2023, 0122 UTC
by ~SIGINT~
0 Replies
1940 Views
Last post May 22, 2017, 1226 UTC
by ChrisSmolinski
3 Replies
1943 Views
Last post October 15, 2017, 2306 UTC
by Dr. Strangelove
0 Replies
1945 Views
Last post March 31, 2017, 2329 UTC
by ChrisSmolinski
4 Replies
1951 Views
Last post June 27, 2025, 1733 UTC
by ChrisSmolinski
1 Replies
1977 Views
Last post April 19, 2019, 2241 UTC
by Daniel Wyllyans
3 Replies
1987 Views
Last post October 30, 2017, 1037 UTC
by ChrisSmolinski
1 Replies
1993 Views
Last post September 30, 2017, 2114 UTC
by Radio Piraņa Int.
3 Replies
1995 Views
Last post October 23, 2017, 1712 UTC
by ChrisSmolinski
9 Replies
1995 Views
Last post March 29, 2022, 0428 UTC
by Paul B. Walker, Jr.
2 Replies
2016 Views
Last post March 01, 2018, 1434 UTC
by ChrisSmolinski
3 Replies
2031 Views
Last post April 03, 2017, 2354 UTC
by Dr. Strangelove
5 Replies
2044 Views
Last post December 07, 2024, 0027 UTC
by Molvania Poacher
6 Replies
2046 Views
Last post June 02, 2024, 1245 UTC
by ChrisSmolinski
2 Replies
2062 Views
Last post August 26, 2019, 1833 UTC
by ChrisSmolinski
0 Replies
2075 Views
Last post February 08, 2025, 0211 UTC
by DXrafaelcolDX
0 Replies
2076 Views
Last post November 24, 2018, 1652 UTC
by ChrisSmolinski
0 Replies
2086 Views
Last post May 07, 2017, 1200 UTC
by Daniel Wyllyans
1 Replies
2102 Views
Last post November 22, 2018, 2252 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 Mug
HFUnderground Mug
by MitchellTimeDesigns