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
12 Replies
3308 Views
Last post November 03, 2013, 0048 UTC
by SingleSideburn
Carpe pedes!

Started by Fansome

2 Replies
3297 Views
Last post July 22, 2008, 2356 UTC
by Zoidberg
Haiti earthquake frequencies

Started by Fansome

3 Replies
3296 Views
Last post January 17, 2010, 0330 UTC
by cmradio
7 Replies
3296 Views
Last post September 08, 2011, 0018 UTC
by The Hokie
Planned outage

Started by Fansome

3 Replies
3279 Views
Last post May 23, 2011, 0010 UTC
by Zoidberg
6 Replies
3276 Views
Last post September 15, 2011, 0055 UTC
by Fansome
11 Replies
3272 Views
Last post October 25, 2013, 1622 UTC
by OldSeaRock
Life

Started by RedMercuryLabs

9 Replies
3272 Views
Last post November 01, 2013, 0601 UTC
by Captainenema
Propagation

Started by Fansome

0 Replies
3271 Views
Last post April 26, 2008, 0106 UTC
by Fansome
8 Replies
3271 Views
Last post January 06, 2015, 1531 UTC
by Pigmeat
6 Replies
3269 Views
Last post March 10, 2015, 1725 UTC
by RCCI
6 Replies
3268 Views
Last post February 01, 2015, 1632 UTC
by Antennae
1 Replies
3264 Views
Last post May 08, 2008, 0232 UTC
by L Cee
5 Replies
3264 Views
Last post January 11, 2013, 0110 UTC
by skeezix
1 Replies
3259 Views
Last post April 13, 2011, 1353 UTC
by Captain Crunch
14 Replies
3257 Views
Last post January 01, 2016, 1801 UTC
by redhat
0 Replies
3257 Views
Last post August 31, 2019, 1223 UTC
by XmasScotty
Propagation

Started by Fansome

12 Replies
3255 Views
Last post April 12, 2013, 1606 UTC
by Pigmeat
11 Replies
3254 Views
Last post December 01, 2015, 1939 UTC
by jFarley
6 Replies
3253 Views
Last post April 18, 2012, 1853 UTC
by zackers

 

Normal Topic
Hot Topic (More than 15 replies)
Very Hot Topic (More than 25 replies)

Locked Topic
Sticky Topic
Poll


HFUnderground T-Shirt
HFUnderground House Flag
by MitchellTimeDesigns