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
2 Replies
1491 Views
Last post April 13, 2018, 1404 UTC
by Daniel Wyllyans
0 Replies
1489 Views
Last post November 05, 2017, 2355 UTC
by ChrisSmolinski
3 Replies
1489 Views
Last post December 30, 2019, 1821 UTC
by ChrisSmolinski
1 Replies
1489 Views
Last post May 15, 2022, 0038 UTC
by Ray Lalleu
2 Replies
1488 Views
Last post March 21, 2024, 1105 UTC
by ChrisSmolinski
0 Replies
1488 Views
Last post September 12, 2024, 0014 UTC
by dxace1
1 Replies
1487 Views
Last post November 15, 2017, 0022 UTC
by Skipmuck
1 Replies
1487 Views
Last post January 18, 2022, 1743 UTC
by ChrisSmolinski
1 Replies
1486 Views
Last post September 03, 2020, 1552 UTC
by ChrisSmolinski
4 Replies
1483 Views
Last post November 20, 2024, 0307 UTC
by Professor
2 Replies
1483 Views
Last post May 06, 2018, 1516 UTC
by Skipmuck
2 Replies
1483 Views
Last post September 20, 2025, 2321 UTC
by Radio Star
3 Replies
1483 Views
Last post February 19, 2022, 1327 UTC
by ChrisSmolinski
1 Replies
1479 Views
Last post November 18, 2017, 0034 UTC
by Skipmuck
1 Replies
1476 Views
Last post January 15, 2018, 0204 UTC
by Evil Elvis
1 Replies
1475 Views
Last post December 19, 2017, 0043 UTC
by Ray Lalleu
2 Replies
1471 Views
Last post June 13, 2024, 1209 UTC
by ChrisSmolinski
1 Replies
1468 Views
Last post January 17, 2018, 0037 UTC
by ChrisSmolinski
1 Replies
1465 Views
Last post October 12, 2023, 1337 UTC
by ChrisSmolinski
2 Replies
1465 Views
Last post April 25, 2021, 1636 UTC
by ChrisSmolinski

 

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