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
1 Replies
431 Views
Last post June 26, 2025, 0955 UTC
by alpard
0 Replies
1015 Views
Last post June 29, 2017, 1436 UTC
by wazzoo
3320 Pyongyang

Started by VK3BVW

0 Replies
784 Views
Last post January 10, 2016, 1953 UTC
by VK3BVW
1 Replies
1003 Views
Last post May 15, 2016, 1847 UTC
by Daniel Wyllyans
0 Replies
1328 Views
Last post February 25, 2016, 1239 UTC
by Daniel Wyllyans
0 Replies
1105 Views
Last post November 29, 2015, 0656 UTC
by Daniel Wyllyans
0 Replies
1222 Views
Last post January 03, 2017, 0401 UTC
by Bones
0 Replies
1105 Views
Last post February 13, 2016, 1044 UTC
by Daniel Wyllyans
0 Replies
912 Views
Last post April 10, 2016, 2226 UTC
by Daniel Wyllyans
0 Replies
719 Views
Last post January 21, 2018, 1922 UTC
by Daniel Wyllyans
1 Replies
1123 Views
Last post October 14, 2016, 2306 UTC
by Daniel Wyllyans
2 Replies
1234 Views
Last post October 06, 2018, 2126 UTC
by Daniel Wyllyans
0 Replies
1505 Views
Last post April 13, 2013, 1133 UTC
by Kilokat7
1 Replies
1776 Views
Last post October 06, 2014, 2031 UTC
by Pigmeat
3 Replies
1964 Views
Last post May 30, 2013, 0235 UTC
by cmradio
4 Replies
1603 Views
Last post March 17, 2017, 2156 UTC
by shadypyro
0 Replies
688 Views
Last post June 01, 2019, 0656 UTC
by Ejd
3912 KHz - Brodcast station?

Started by cmradio

2 Replies
4927 Views
Last post August 19, 2008, 1851 UTC
by cmradio
0 Replies
1236 Views
Last post January 26, 2016, 0941 UTC
by Daniel Wyllyans
0 Replies
956 Views
Last post June 10, 2016, 1127 UTC
by Daniel Wyllyans

 

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