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
3564 Views
Last post August 03, 2014, 1037 UTC
by ka1iic
1 Replies
950 Views
Last post March 29, 2014, 1824 UTC
by ChrisSmolinski
10 Replies
3653 Views
Last post January 08, 2017, 0049 UTC
by ve6jy
40 Replies
15281 Views
Last post January 26, 2014, 1748 UTC
by atrainradio
0 Replies
759 Views
Last post July 15, 2014, 1626 UTC
by ChrisSmolinski
0 Replies
1585 Views
Last post July 31, 2011, 2334 UTC
by Sealord
10 Replies
4848 Views
Last post August 06, 2010, 2218 UTC
by cmradio
4 Replies
1654 Views
Last post September 24, 2017, 1918 UTC
by spacebunnyradio
2 Replies
932 Views
Last post June 14, 2020, 2305 UTC
by Azimuth Coordinator
Israeli numbers

Started by Fansome

0 Replies
1526 Views
Last post March 10, 2011, 2158 UTC
by Fansome
1 Replies
963 Views
Last post July 29, 2020, 1914 UTC
by MDK2
0 Replies
946 Views
Last post February 23, 2013, 0000 UTC
by desmoface
It's a big pirate world!

Started by Newfoundland DXer

1 Replies
1649 Views
Last post January 27, 2011, 0413 UTC
by cmradio
2 Replies
1091 Views
Last post December 17, 2014, 0119 UTC
by Pigmeat
1 Replies
1848 Views
Last post October 15, 2011, 1549 UTC
by Northern Relay Service
0 Replies
1603 Views
Last post July 08, 2012, 1424 UTC
by Northern Relay Service
0 Replies
959 Views
Last post December 23, 2014, 0247 UTC
by atrainradio
8 Replies
1944 Views
Last post November 28, 2019, 1833 UTC
by Pigmeat
2 Replies
1162 Views
Last post January 03, 2019, 0645 UTC
by KaySeeks
2 Replies
1541 Views
Last post August 07, 2017, 1832 UTC
by Josh

 

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