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
Portable SDR

Started by Ragnar

2 Replies
4256 Views
Last post September 03, 2013, 0328 UTC
by cmradio
5 Replies
6039 Views
Last post July 17, 2024, 1612 UTC
by n2avh
4 Replies
2525 Views
Last post November 12, 2022, 0754 UTC
by Charlie_Dont_Surf
0 Replies
2181 Views
Last post May 10, 2024, 1943 UTC
by Ray Lalleu
2 Replies
1450 Views
Last post May 04, 2024, 2042 UTC
by Ray Lalleu
6 Replies
3945 Views
Last post December 17, 2019, 2152 UTC
by chanito
5 Replies
2486 Views
Last post June 12, 2025, 0401 UTC
by nitroengine
1 Replies
1658 Views
Last post July 17, 2020, 1517 UTC
by ChrisSmolinski
2 Replies
1404 Views
Last post June 21, 2023, 2032 UTC
by ZL/KF6VO
5 Replies
2865 Views
Last post June 19, 2021, 1320 UTC
by ChrisSmolinski
6 Replies
2008 Views
Last post April 16, 2023, 0726 UTC
by Charlie_Dont_Surf
2 Replies
1773 Views
Last post April 12, 2023, 0014 UTC
by ~SIGINT~
1 Replies
2406 Views
Last post September 17, 2024, 1836 UTC
by RobRich
9 Replies
3279 Views
Last post March 15, 2023, 0113 UTC
by Charlie_Dont_Surf
8 Replies
4429 Views
Last post March 07, 2023, 1121 UTC
by kris
1 Replies
2397 Views
Last post March 12, 2021, 1332 UTC
by raypfaff
Taking the SDR plunge

Started by rdla4

4 Replies
4807 Views
Last post April 17, 2013, 2311 UTC
by rdla4
6 Replies
5544 Views
Last post April 09, 2013, 2112 UTC
by redhat
9 Replies
7343 Views
Last post November 14, 2023, 2216 UTC
by Ray Lalleu
1 Replies
7457 Views
Last post July 06, 2013, 1838 UTC
by BDM

 

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