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
1967 Views
Last post November 30, 2020, 1928 UTC
by CoolAM Radio
PSK31

Started by Elf36

1 Replies
1970 Views
Last post September 15, 2021, 1256 UTC
by NJQA
2 Replies
1971 Views
Last post March 22, 2021, 2326 UTC
by Rizla
1 Replies
1976 Views
Last post November 29, 2020, 0140 UTC
by Rizla
2 Replies
1981 Views
Last post February 06, 2020, 2151 UTC
by Josh
HF activity is on the rise

Started by Matt285

4 Replies
1983 Views
Last post March 17, 2020, 2036 UTC
by ThaDood
4 Replies
1986 Views
Last post February 03, 2020, 0151 UTC
by Pigmeat
S51DX station

Started by Elf36

2 Replies
1987 Views
Last post October 10, 2021, 1933 UTC
by Elf36
3 Replies
1997 Views
Last post March 29, 2021, 1415 UTC
by Matt285
2 Replies
1997 Views
Last post May 26, 2021, 1649 UTC
by Stretchyman
2 Replies
1998 Views
Last post June 23, 2020, 1814 UTC
by ThaDood
1 Replies
2005 Views
Last post July 04, 2020, 1035 UTC
by cj468
2 Replies
2005 Views
Last post June 11, 2021, 1900 UTC
by ThaDood
0 Replies
2007 Views
Last post December 04, 2020, 2254 UTC
by ThaDood
QRP contacts

Started by Matt285

6 Replies
2018 Views
Last post February 17, 2020, 1207 UTC
by Matt285
2 Replies
2023 Views
Last post May 10, 2021, 1706 UTC
by WA4FHY
1 Replies
2042 Views
Last post January 02, 2021, 1033 UTC
by Rob.
PSK31 activity

Started by Elf36

4 Replies
2052 Views
Last post November 15, 2021, 2006 UTC
by Elf36
0 Replies
2069 Views
Last post August 06, 2020, 0607 UTC
by ThaDood
0 Replies
2081 Views
Last post June 23, 2020, 2104 UTC
by ThaDood

 

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