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
7 Replies
383 Views
Last post March 16, 2024, 1935 UTC
by RobRich
3 Replies
257 Views
Last post March 10, 2024, 2134 UTC
by RobRich
21 Replies
2340 Views
Last post March 05, 2024, 1752 UTC
by RobRich
7 Replies
842 Views
Last post February 01, 2024, 1814 UTC
by MDK2
6 Replies
919 Views
Last post January 31, 2024, 2146 UTC
by RobRich
SDR++

Started by ChrisSmolinski

4 Replies
515 Views
Last post January 31, 2024, 1837 UTC
by cyphermatic
9 Replies
2020 Views
Last post January 04, 2024, 2043 UTC
by Treehouse SWL
KiwiSDR future/replacement?

Started by Maxwells Daemon « 1 2 »

23 Replies
4308 Views
Last post December 05, 2023, 1022 UTC
by Ray Lalleu
2 Replies
654 Views
Last post December 02, 2023, 2217 UTC
by JustGreg
9 Replies
4496 Views
Last post November 14, 2023, 2216 UTC
by Ray Lalleu
10 Replies
1461 Views
Last post October 27, 2023, 1211 UTC
by europirate
Kiwi questions

Started by Brian

6 Replies
1591 Views
Last post September 19, 2023, 0832 UTC
by Ray Lalleu
0 Replies
1086 Views
Last post September 07, 2023, 1240 UTC
by NJQA
15 Replies
4150 Views
Last post August 17, 2023, 1952 UTC
by ZL/KF6VO
0 Replies
827 Views
Last post August 14, 2023, 1709 UTC
by ChrisSmolinski
2 Replies
781 Views
Last post June 21, 2023, 2032 UTC
by ZL/KF6VO
0 Replies
589 Views
Last post June 17, 2023, 1917 UTC
by IQ_imbalance
1 Replies
771 Views
Last post May 23, 2023, 2301 UTC
by ~SIGINT~
RX-888

Started by NJQA

0 Replies
813 Views
Last post May 15, 2023, 1330 UTC
by NJQA
6 Replies
1164 Views
Last post April 16, 2023, 0726 UTC
by Charlie_Dont_Surf

 

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