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
1 Replies
193 Views
Last post July 13, 2025, 0115 UTC
by shadypyro
0 Replies
533 Views
Last post March 21, 2022, 0311 UTC
by myteaquinn
5 Replies
571 Views
Last post November 23, 2024, 0256 UTC
by hflstnr
3 Replies
722 Views
Last post December 28, 2023, 0119 UTC
by Molvania Poacher
7 Replies
612 Views
Last post January 18, 2025, 0238 UTC
by Molvania Poacher
5 Replies
639 Views
Last post March 11, 2024, 0242 UTC
by ButchKidd
7 Replies
4527 Views
Last post June 18, 2025, 0335 UTC
by J. Carlos Pérez Montero
4 Replies
888 Views
Last post March 25, 2025, 1042 UTC
by ChrisSmolinski
5 Replies
1160 Views
Last post January 09, 2021, 0432 UTC
by Dr. Strangelove
4 Replies
1508 Views
Last post May 24, 2025, 1743 UTC
by Tony_Pavick
6 Replies
671 Views
Last post March 16, 2024, 0209 UTC
by Sarge94
1 Replies
429 Views
Last post September 02, 2024, 0340 UTC
by N2MLP
1 Replies
519 Views
Last post August 22, 2021, 2332 UTC
by Chuck54
0 Replies
310 Views
Last post November 05, 2024, 0358 UTC
by myteaquinn
6 Replies
574 Views
Last post June 27, 2025, 0257 UTC
by Dr. Strangelove
3 Replies
706 Views
Last post January 29, 2022, 0231 UTC
by KMD3HR
2 Replies
471 Views
Last post July 28, 2024, 0426 UTC
by Andrew Yoder
3 Replies
1278 Views
Last post February 02, 2014, 1618 UTC
by ChrisSmolinski
3 Replies
1875 Views
Last post October 27, 2013, 1739 UTC
by glimmer twin
3 Replies
575 Views
Last post November 23, 2023, 0034 UTC
by K1MLP

 

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