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
9 Replies
4093 Views
Last post April 07, 2016, 0725 UTC
by Pigmeat
Propagation

Started by Fansome

0 Replies
2391 Views
Last post May 19, 2009, 1652 UTC
by Fansome
0 Replies
993 Views
Last post November 05, 2014, 2246 UTC
by Fansome
Propagation

Started by Fansome

0 Replies
1457 Views
Last post December 02, 2012, 0314 UTC
by Fansome
6 Replies
3317 Views
Last post March 12, 2012, 0417 UTC
by Jolly Roger
Nasa Frequency Guide

Started by Fansome

3 Replies
3816 Views
Last post March 18, 2009, 1342 UTC
by RF BURNZ
4 Replies
2120 Views
Last post October 07, 2014, 1519 UTC
by Pigmeat
11 Replies
2756 Views
Last post January 18, 2020, 2248 UTC
by Josh
Yahoo is tracking group members

Started by Fansome

5 Replies
4182 Views
Last post January 10, 2009, 1824 UTC
by bobby_blaze
0 Replies
1628 Views
Last post June 19, 2011, 0451 UTC
by Fansome
4 Replies
1923 Views
Last post September 21, 2017, 1827 UTC
by Josh
Radio St. Helena

Started by Fansome

2 Replies
2279 Views
Last post September 10, 2012, 0533 UTC
by BoomboxDX
0 Replies
2105 Views
Last post March 24, 2010, 0530 UTC
by Fansome
0 Replies
4664 Views
Last post November 05, 2008, 0455 UTC
by Fansome
Propagation

Started by Fansome

3 Replies
1810 Views
Last post July 16, 2017, 1816 UTC
by Pigmeat
4 Replies
2506 Views
Last post September 02, 2014, 0119 UTC
by Pigmeat
Propagation

Started by Fansome

0 Replies
1660 Views
Last post July 27, 2012, 2325 UTC
by Fansome
9 Replies
4780 Views
Last post January 31, 2010, 1451 UTC
by Tube Shortwave
14 Replies
5220 Views
Last post January 08, 2012, 2313 UTC
by ChrisSmolinski
Propagation

Started by Fansome

0 Replies
2396 Views
Last post August 29, 2008, 1858 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 Garden Flag
by MitchellTimeDesigns