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
0 Replies
1018 Views
Last post May 22, 2016, 0023 UTC
by Rafman
0 Replies
867 Views
Last post April 16, 2016, 0022 UTC
by Rafman
0 Replies
1183 Views
Last post June 07, 2015, 0554 UTC
by Rafman
2 Replies
1445 Views
Last post May 09, 2015, 0145 UTC
by BigAl
1 Replies
1317 Views
Last post April 03, 2015, 2333 UTC
by Jari Finland
2 Replies
1506 Views
Last post November 09, 2014, 1616 UTC
by ChrisSmolinski
6 Replies
2959 Views
Last post May 04, 2015, 1913 UTC
by Radio Spaceshuttle
0 Replies
923 Views
Last post June 19, 2016, 0028 UTC
by Rafman
1 Replies
984 Views
Last post December 11, 2015, 2313 UTC
by JoeFLIPS
3 Replies
1390 Views
Last post September 14, 2014, 0216 UTC
by Kilokat7
3 Replies
1652 Views
Last post May 14, 2016, 2350 UTC
by MDK2
8 Replies
2549 Views
Last post November 09, 2014, 1601 UTC
by ChrisSmolinski
2 Replies
1495 Views
Last post May 02, 2015, 1602 UTC
by Rafman
7 Replies
1657 Views
Last post March 19, 2017, 0003 UTC
by OZDXer
3 Replies
1865 Views
Last post March 28, 2015, 0030 UTC
by Oliver
2 Replies
1513 Views
Last post September 24, 2016, 1820 UTC
by EliteData
0 Replies
1349 Views
Last post May 01, 2016, 0040 UTC
by RadRoadrunner
0 Replies
1735 Views
Last post October 31, 2014, 2302 UTC
by radio_cosmo
3 Replies
712 Views
Last post February 13, 2025, 1245 UTC
by Sealord
9 Replies
1273 Views
Last post February 12, 2025, 2237 UTC
by Ray Lalleu

 

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