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
Solar Cycle Update: Twin Peaks?

Started by Fansome

2 Replies
1328 Views
Last post March 09, 2013, 0350 UTC
by Fansome
2 Replies
1329 Views
Last post April 13, 2022, 2252 UTC
by redhat
Russian Comms

Started by NJQA

1 Replies
1329 Views
Last post March 12, 2022, 2149 UTC
by Charlie_Dont_Surf
3 Replies
1329 Views
Last post December 06, 2019, 1100 UTC
by Pigmeat
0 Replies
1330 Views
Last post September 11, 2016, 1357 UTC
by ka1iic
0 Replies
1331 Views
Last post September 01, 2024, 1909 UTC
by Shortwave_Listener
0 Replies
1331 Views
Last post September 07, 2015, 1511 UTC
by the Ghost
0 Replies
1331 Views
Last post July 20, 2015, 2312 UTC
by CoolAM Radio
0 Replies
1331 Views
Last post November 10, 2017, 1127 UTC
by CoolAM Radio
1 Replies
1332 Views
Last post July 29, 2025, 0209 UTC
by n2avh
1 Replies
1332 Views
Last post October 05, 2016, 1225 UTC
by radiogaga
3 Replies
1333 Views
Last post February 29, 2020, 1808 UTC
by Josh
0 Replies
1333 Views
Last post June 08, 2013, 2313 UTC
by CoolAM Radio
1 Replies
1333 Views
Last post September 22, 2013, 1341 UTC
by skeezix
1 Replies
1333 Views
Last post September 19, 2015, 2234 UTC
by John Poet
0 Replies
1334 Views
Last post October 02, 2015, 1343 UTC
by atrainradio
2 Replies
1335 Views
Last post May 02, 2014, 2259 UTC
by Fansome
0 Replies
1335 Views
Last post August 15, 2017, 1648 UTC
by CoolAM Radio
2 Replies
1335 Views
Last post December 21, 2016, 1931 UTC
by Josh
0 Replies
1336 Views
Last post February 15, 2015, 1748 UTC
by CoolAM Radio

 

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