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
980 Views
Last post September 22, 2021, 0439 UTC
by Ron - Calif.
1 Replies
1133 Views
Last post March 22, 2021, 2346 UTC
by fpeconsultant
Korea

Started by Ron - Calif.

0 Replies
957 Views
Last post January 04, 2022, 0537 UTC
by Ron - Calif.
0 Replies
997 Views
Last post March 16, 2021, 0230 UTC
by Ron - Calif.
1 Replies
1140 Views
Last post November 17, 2020, 0001 UTC
by MDK2
0 Replies
427 Views
Last post June 05, 2024, 0443 UTC
by Ron - Calif.
0 Replies
941 Views
Last post November 16, 2020, 2208 UTC
by Ron - Calif.
0 Replies
983 Views
Last post December 29, 2021, 2326 UTC
by Ron - Calif.
2 Replies
3127 Views
Last post March 30, 2018, 1620 UTC
by fpeconsultant
2 Replies
1296 Views
Last post March 13, 2021, 1743 UTC
by Ron - Calif.
0 Replies
1227 Views
Last post October 13, 2017, 0253 UTC
by Ron - Calif.
0 Replies
299 Views
Last post May 09, 2024, 2115 UTC
by Ron - Calif.
0 Replies
650 Views
Last post February 03, 2023, 0434 UTC
by Ron - Calif.
Korea

Started by Ron - Calif.

1 Replies
1030 Views
Last post December 28, 2021, 1849 UTC
by fpeconsultant
0 Replies
960 Views
Last post September 03, 2021, 1518 UTC
by Ron - Calif.
0 Replies
467 Views
Last post May 02, 2024, 1510 UTC
by Ron - Calif.
1 Replies
1036 Views
Last post October 27, 2023, 1446 UTC
by MDK2
0 Replies
900 Views
Last post March 08, 2021, 0939 UTC
by Ron - Calif.
0 Replies
1170 Views
Last post November 10, 2020, 2205 UTC
by Ron - Calif.
0 Replies
781 Views
Last post January 07, 2023, 1139 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 House Flag
by MitchellTimeDesigns