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
4 Replies
2479 Views
Last post March 22, 2024, 1953 UTC
by NQC
3 Replies
2486 Views
Last post February 04, 2022, 0415 UTC
by Saul
2 Replies
2490 Views
Last post December 17, 2021, 0351 UTC
by NQC
5 Replies
2493 Views
Last post April 19, 2023, 2006 UTC
by Pigmeat
4 Replies
2501 Views
Last post September 25, 2018, 0007 UTC
by Kilokat7
2 Replies
2505 Views
Last post December 15, 2013, 1630 UTC
by glimmer twin
2 Replies
2517 Views
Last post August 18, 2017, 2228 UTC
by Davep
Great Skip

Started by AbnersFarm

0 Replies
2518 Views
Last post February 02, 2014, 0407 UTC
by AbnersFarm
1 Replies
2538 Views
Last post May 08, 2013, 0047 UTC
by Chanter
2 Replies
2546 Views
Last post December 19, 2022, 1447 UTC
by wilddog
2 Replies
2554 Views
Last post December 25, 2013, 1235 UTC
by bumbelstock
2 Replies
2555 Views
Last post September 28, 2017, 0220 UTC
by Kilokat7
2 Replies
2558 Views
Last post March 18, 2014, 2331 UTC
by skeezix
0 Replies
2571 Views
Last post November 24, 2013, 0407 UTC
by 7stones
0 Replies
2572 Views
Last post June 25, 2025, 0352 UTC
by Sarge94
2 Replies
2573 Views
Last post December 25, 2013, 1238 UTC
by bumbelstock
0 Replies
2574 Views
Last post November 07, 2012, 2316 UTC
by vo1-001-swl
1 Replies
2581 Views
Last post October 29, 2013, 0123 UTC
by Pigmeat
4 Replies
2599 Views
Last post July 25, 2022, 1940 UTC
by Paul B. Walker, Jr.
0 Replies
2608 Views
Last post August 02, 2014, 0414 UTC
by SWTurk

 

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