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
896 Views
Last post January 11, 2023, 2007 UTC
by Josh
2 Replies
858 Views
Last post December 30, 2022, 2148 UTC
by ButchKidd
1 Replies
1973 Views
Last post November 03, 2017, 2303 UTC
by Token
0 Replies
1392 Views
Last post October 26, 2018, 0521 UTC
by bumbelstock
23 Replies
6862 Views
Last post December 08, 2018, 0308 UTC
by Exo
1 Replies
1890 Views
Last post October 13, 2017, 1714 UTC
by Josh
0 Replies
1163 Views
Last post September 30, 2019, 1533 UTC
by Boriken
1 Replies
1403 Views
Last post April 05, 2021, 2138 UTC
by Token
3 Replies
2460 Views
Last post August 27, 2016, 0331 UTC
by Token
6 Replies
3484 Views
Last post December 16, 2016, 1612 UTC
by BacardE
0 Replies
1182 Views
Last post April 01, 2018, 2250 UTC
by Asuyuka
3 Replies
2555 Views
Last post January 02, 2017, 2326 UTC
by Token
5 Replies
5365 Views
Last post May 06, 2015, 0412 UTC
by Antennae
1 Replies
3134 Views
Last post March 11, 2015, 2300 UTC
by Token
3 Replies
1411 Views
Last post December 27, 2020, 1334 UTC
by Token
3 Replies
1751 Views
Last post December 05, 2020, 2336 UTC
by alleycat
2 Replies
1098 Views
Last post April 03, 2022, 0301 UTC
by alleycat
3 Replies
1551 Views
Last post November 12, 2020, 0112 UTC
by alleycat
3 Replies
1687 Views
Last post May 04, 2022, 1937 UTC
by Josh
3 Replies
889 Views
Last post December 30, 2022, 0536 UTC
by ~SIGINT~

 

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