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
16 Replies
1772 Views
Last post March 15, 2025, 0251 UTC
by corq
16 Replies
3843 Views
Last post January 14, 2018, 1415 UTC
by Evil Elvis
16 Replies
2553 Views
Last post November 05, 2023, 2338 UTC
by sgreenstreet
16 Replies
1777 Views
Last post December 23, 2022, 2304 UTC
by Bali_Frank
16 Replies
7084 Views
Last post November 07, 2013, 0352 UTC
by Zane
16 Replies
4409 Views
Last post April 14, 2014, 0239 UTC
by William Hassig
16 Replies
2286 Views
Last post March 07, 2022, 2239 UTC
by JustGreg
16 Replies
3729 Views
Last post December 18, 2016, 0234 UTC
by Markokpik
16 Replies
2967 Views
Last post November 01, 2020, 1038 UTC
by ✠ Blue Max
16 Replies
4032 Views
Last post March 06, 2018, 1634 UTC
by canswl
16 Replies
3435 Views
Last post March 04, 2018, 2115 UTC
by RainBrandy
16 Replies
1380 Views
Last post May 03, 2025, 2353 UTC
by newmanm
16 Replies
1619 Views
Last post January 01, 2023, 0039 UTC
by outhouse radio
16 Replies
4759 Views
Last post July 18, 2015, 1739 UTC
by Gino Italy
16 Replies
4426 Views
Last post May 11, 2025, 0305 UTC
by Molvania Poacher
16 Replies
3033 Views
Last post November 02, 2020, 0132 UTC
by ✠ Blue Max
16 Replies
3751 Views
Last post August 27, 2019, 0055 UTC
by ButchKidd
16 Replies
5967 Views
Last post February 05, 2012, 0343 UTC
by Andrew Yoder
16 Replies
5279 Views
Last post December 20, 2020, 0520 UTC
by myteaquinn
16 Replies
2325 Views
Last post April 17, 2022, 0216 UTC
by William Hassig

 

Normal Topic
Hot Topic (More than 15 replies)
Very Hot Topic (More than 25 replies)

Locked Topic
Sticky Topic
Poll


HFUnderground T-Shirt
HFUnderground Garden Flag
by MitchellTimeDesigns