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
614 Views
Last post May 03, 2023, 0154 UTC
by N2MLP
0 Replies
1101 Views
Last post September 27, 2020, 1601 UTC
by ChrisSmolinski
0 Replies
599 Views
Last post May 25, 2023, 1116 UTC
by R4002
0 Replies
641 Views
Last post August 17, 2022, 0238 UTC
by vlf2hf
0 Replies
999 Views
Last post November 15, 2020, 1823 UTC
by UtilitySeattle
0 Replies
1041 Views
Last post November 21, 2020, 1958 UTC
by n6spp
0 Replies
585 Views
Last post May 25, 2023, 1219 UTC
by RobRich
0 Replies
642 Views
Last post September 15, 2022, 1422 UTC
by R4002
0 Replies
905 Views
Last post December 11, 2020, 1637 UTC
by Traveling Wave
0 Replies
1034 Views
Last post December 13, 2020, 2028 UTC
by ThaDood
0 Replies
751 Views
Last post November 11, 2021, 1903 UTC
by ZFT
0 Replies
674 Views
Last post May 25, 2023, 2348 UTC
by N2MLP
0 Replies
615 Views
Last post May 31, 2023, 1545 UTC
by R4002
0 Replies
618 Views
Last post June 09, 2023, 1547 UTC
by R4002
0 Replies
841 Views
Last post February 22, 2022, 1319 UTC
by ChrisSmolinski
0 Replies
786 Views
Last post September 24, 2021, 2057 UTC
by R4002
0 Replies
920 Views
Last post May 23, 2021, 1809 UTC
by bamaDX
0 Replies
722 Views
Last post May 23, 2021, 2200 UTC
by ChrisSmolinski
0 Replies
732 Views
Last post July 01, 2023, 1319 UTC
by RobRich
0 Replies
595 Views
Last post October 14, 2023, 1836 UTC
by N2MLP

 

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