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
524 Views
Last post September 21, 2021, 1637 UTC
by Treehouse SWL
1 Replies
1142 Views
Last post May 13, 2020, 1323 UTC
by sat_dxer
New catch

Started by Nella F.

0 Replies
925 Views
Last post June 02, 2015, 2337 UTC
by Nella F.
3 Replies
993 Views
Last post October 24, 2020, 1440 UTC
by sat_dxer
Need help... unknown

Started by UncleJohn

5 Replies
1112 Views
Last post March 01, 2022, 2359 UTC
by UncleJohn
2 Replies
1130 Views
Last post November 08, 2016, 1309 UTC
by Devotech
5 Replies
1107 Views
Last post October 11, 2022, 0118 UTC
by BoomboxDX
0 Replies
450 Views
Last post December 24, 2020, 1906 UTC
by Ct Yankee
1 Replies
443 Views
Last post December 24, 2023, 1821 UTC
by autovon
0 Replies
649 Views
Last post October 10, 2018, 1734 UTC
by Daniel Wyllyans
0 Replies
871 Views
Last post June 04, 2017, 1850 UTC
by Daniel Wyllyans
0 Replies
604 Views
Last post March 08, 2019, 1428 UTC
by Daniel Wyllyans
2 Replies
1619 Views
Last post September 04, 2017, 2356 UTC
by Ron - Calif.
0 Replies
1676 Views
Last post February 02, 2016, 2027 UTC
by Daniel Wyllyans
0 Replies
1045 Views
Last post March 17, 2016, 0008 UTC
by Ron - Calif.
0 Replies
980 Views
Last post February 04, 2016, 1709 UTC
by Daniel Wyllyans
0 Replies
465 Views
Last post June 19, 2018, 1502 UTC
by Daniel Wyllyans
0 Replies
833 Views
Last post August 24, 2016, 1706 UTC
by Ron - Calif.
0 Replies
785 Views
Last post April 08, 2018, 1641 UTC
by East Troy Don
1 Replies
455 Views
Last post September 19, 2022, 1501 UTC
by Ron - Calif.

 

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

Locked Topic
Sticky Topic
Poll


HFUnderground T-Shirt
HFUnderground T-Shirt
by MitchellTimeDesigns