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
14 Replies
7047 Views
Last post May 20, 2022, 1550 UTC
by Pigmeat
0 Replies
1483 Views
Last post April 09, 2018, 1251 UTC
by Ct Yankee
0 Replies
1453 Views
Last post April 09, 2018, 1510 UTC
by Ct Yankee
0 Replies
1486 Views
Last post April 09, 2018, 1911 UTC
by Ct Yankee
0 Replies
1793 Views
Last post April 09, 2018, 1923 UTC
by Ct Yankee
0 Replies
1709 Views
Last post April 09, 2018, 1956 UTC
by Ct Yankee
0 Replies
1910 Views
Last post April 09, 2018, 2024 UTC
by Ct Yankee
0 Replies
2310 Views
Last post July 26, 2015, 1656 UTC
by Daniel Wyllyans
2 Replies
3273 Views
Last post July 27, 2015, 1555 UTC
by Daniel Wyllyans
0 Replies
3542 Views
Last post July 29, 2015, 1356 UTC
by Daniel Wyllyans
0 Replies
1667 Views
Last post June 21, 2018, 1139 UTC
by Daniel Wyllyans
0 Replies
1623 Views
Last post June 25, 2018, 1219 UTC
by Daniel Wyllyans
1 Replies
1899 Views
Last post July 15, 2018, 2147 UTC
by pinto vortando
0 Replies
1850 Views
Last post January 09, 2017, 2314 UTC
by Daniel Wyllyans
2 Replies
4427 Views
Last post February 21, 2016, 0932 UTC
by Daniel Wyllyans
0 Replies
2712 Views
Last post February 23, 2016, 2359 UTC
by Daniel Wyllyans
0 Replies
1762 Views
Last post July 31, 2018, 0147 UTC
by Daniel Wyllyans
2 Replies
2468 Views
Last post August 18, 2018, 0143 UTC
by Daniel Wyllyans
4 Replies
3291 Views
Last post February 01, 2017, 1217 UTC
by prldx
1 Replies
2866 Views
Last post March 17, 2016, 2023 UTC
by Looking-Glass

 

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