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
5 Replies
3369 Views
Last post July 24, 2017, 1622 UTC
by Josh
0 Replies
1228 Views
Last post December 24, 2020, 1548 UTC
by SBS01
1 Replies
1556 Views
Last post June 13, 2018, 1551 UTC
by sat_dxer
0 Replies
1745 Views
Last post April 05, 2019, 1711 UTC
by ChrisSmolinski
0 Replies
2581 Views
Last post April 05, 2019, 1856 UTC
by ChrisSmolinski
0 Replies
1411 Views
Last post April 05, 2019, 1506 UTC
by ChrisSmolinski
0 Replies
1441 Views
Last post April 05, 2019, 1432 UTC
by ChrisSmolinski
0 Replies
2821 Views
Last post April 05, 2019, 2130 UTC
by ChrisSmolinski
0 Replies
2489 Views
Last post April 05, 2019, 1853 UTC
by ChrisSmolinski
0 Replies
1299 Views
Last post March 25, 2021, 1749 UTC
by ChrisSmolinski
0 Replies
2340 Views
Last post April 05, 2019, 1730 UTC
by ChrisSmolinski
0 Replies
2405 Views
Last post April 05, 2019, 1730 UTC
by ChrisSmolinski
0 Replies
622 Views
Last post February 19, 2023, 1654 UTC
by Harriku
1 Replies
749 Views
Last post December 20, 2022, 1531 UTC
by R4002
0 Replies
395 Views
Last post January 21, 2024, 1342 UTC
by NJQA
11 Replies
7489 Views
Last post August 30, 2018, 0736 UTC
by Tim Bucknall
UHF mil air

Started by Josh « 1 2 3 4 5 6 7 8 9 ... 39 »

571 Replies
173585 Views
Last post July 18, 2024, 0242 UTC
by sat_dxer
3 Replies
1594 Views
Last post January 01, 2023, 1402 UTC
by Davep
2 Replies
14698 Views
Last post August 15, 2018, 1915 UTC
by Tim Bucknall
2 Replies
2517 Views
Last post August 04, 2018, 1150 UTC
by R4002

 

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