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
625 Views
Last post February 18, 2018, 1743 UTC
by ChrisSmolinski
5 Replies
625 Views
Last post April 08, 2024, 1135 UTC
by ChrisSmolinski
UNID 6950 USB 1550 UTC 2/10/16

Started by JoeFLIPS

0 Replies
625 Views
Last post February 10, 2016, 1552 UTC
by JoeFLIPS
1 Replies
625 Views
Last post January 28, 2022, 0020 UTC
by Charlie_Dont_Surf
0 Replies
625 Views
Last post October 27, 2018, 1755 UTC
by Ct Yankee
0 Replies
624 Views
Last post March 04, 2019, 1231 UTC
by ChrisSmolinski
2 Replies
624 Views
Last post June 27, 2022, 0346 UTC
by radiorandy
0 Replies
624 Views
Last post April 11, 2021, 0035 UTC
by Ethernut
0 Replies
624 Views
Last post December 16, 2016, 1416 UTC
by ChrisSmolinski
3 Replies
624 Views
Last post May 15, 2025, 1831 UTC
by Ron Hunsicker
1 Replies
624 Views
Last post November 25, 2022, 1525 UTC
by flexoman61
UNID 6920 USB 0420 UTC 17 Feb 18

Started by Unknown Name

0 Replies
624 Views
Last post February 17, 2018, 0613 UTC
by Unknown Name
11 Replies
624 Views
Last post October 31, 2024, 2250 UTC
by Andrew Yoder
0 Replies
624 Views
Last post July 04, 2016, 1618 UTC
by ChrisSmolinski
3 Replies
624 Views
Last post December 15, 2022, 1453 UTC
by Pigmeat
1 Replies
624 Views
Last post February 22, 2022, 0231 UTC
by Erik Mattson
1 Replies
624 Views
Last post May 21, 2021, 2207 UTC
by dxace1
4 Replies
624 Views
Last post February 29, 2024, 1953 UTC
by dxwingr
0 Replies
624 Views
Last post June 28, 2018, 1340 UTC
by ChrisSmolinski
2 Replies
624 Views
Last post December 05, 2021, 0820 UTC
by Bali_Frank

 

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