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
2 Replies
1534 Views
Last post June 08, 2012, 0314 UTC
by Zoidberg
Propagation

Started by Fansome

3 Replies
2427 Views
Last post April 19, 2015, 1819 UTC
by Pigmeat
9 Replies
4988 Views
Last post April 28, 2010, 1953 UTC
by Beam Tetrode
1 Replies
1012 Views
Last post January 02, 2016, 0504 UTC
by RobRich
0 Replies
649 Views
Last post January 09, 2020, 0325 UTC
by Fansome
0 Replies
1223 Views
Last post April 16, 2014, 1313 UTC
by Fansome
FRW

Started by Fansome

0 Replies
1766 Views
Last post March 09, 2014, 0017 UTC
by Fansome
1 Replies
1617 Views
Last post July 13, 2012, 0054 UTC
by Northern Relay Service
0 Replies
1880 Views
Last post May 20, 2010, 2116 UTC
by Fansome
6 Replies
2760 Views
Last post February 17, 2016, 1515 UTC
by ka1iic
0 Replies
953 Views
Last post May 01, 2014, 0724 UTC
by Fansome
Propagation

Started by Fansome

0 Replies
1508 Views
Last post May 06, 2011, 1905 UTC
by Fansome
Propagation

Started by Fansome

1 Replies
1664 Views
Last post January 14, 2012, 1513 UTC
by Sealord
3 Replies
1825 Views
Last post December 24, 2017, 2314 UTC
by Pigmeat
Propagation

Started by Fansome

0 Replies
2232 Views
Last post March 13, 2009, 2031 UTC
by Fansome
11 Replies
2761 Views
Last post August 13, 2012, 2206 UTC
by cmradio
Apple Hires Antenna Engineers.

Started by Fansome

1 Replies
1807 Views
Last post July 01, 2010, 1531 UTC
by SW-J
3 Replies
1515 Views
Last post May 08, 2013, 2308 UTC
by Fansome
0 Replies
885 Views
Last post May 31, 2014, 0058 UTC
by Fansome
0 Replies
4114 Views
Last post June 04, 2011, 2304 UTC
by Fansome

 

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