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
0 Replies
1077 Views
Last post October 07, 2013, 1158 UTC
by Sealord
0 Replies
1121 Views
Last post October 09, 2013, 1149 UTC
by Sealord
0 Replies
1180 Views
Last post October 09, 2013, 1203 UTC
by Sealord
NEW HM01 Logging 7320 kHz 0632z

Started by 07code04stalker1776

0 Replies
2142 Views
Last post October 09, 2013, 2259 UTC
by 07code04stalker1776
0 Replies
1318 Views
Last post October 11, 2013, 1045 UTC
by Sealord
Numbers logs

Started by Ary-B

0 Replies
1660 Views
Last post July 25, 2014, 1233 UTC
by Ary-B
0 Replies
959 Views
Last post October 12, 2013, 1410 UTC
by skeezix
0 Replies
1227 Views
Last post March 12, 2014, 2234 UTC
by SW Observer
E11a

Started by Ary-B

0 Replies
1100 Views
Last post July 21, 2014, 0753 UTC
by Ary-B
G06 02-14 19:30, 4.792

Started by totoCZ

0 Replies
821 Views
Last post February 15, 2014, 0101 UTC
by totoCZ
0 Replies
1144 Views
Last post October 14, 2013, 1525 UTC
by Sealord
0 Replies
1190 Views
Last post October 15, 2013, 1213 UTC
by Sealord
0 Replies
1215 Views
Last post October 15, 2013, 1216 UTC
by Sealord
0 Replies
1665 Views
Last post December 12, 2013, 0301 UTC
by SW Observer
V13 8300 kHz AM 03-15-14 1300-1330

Started by vhavrilko

0 Replies
782 Views
Last post March 15, 2014, 1404 UTC
by vhavrilko
0 Replies
1114 Views
Last post October 16, 2013, 1414 UTC
by Sealord
0 Replies
1143 Views
Last post October 16, 2013, 1416 UTC
by Sealord
0 Replies
1155 Views
Last post February 16, 2014, 1838 UTC
by SW Observer
0 Replies
893 Views
Last post March 15, 2014, 1354 UTC
by vhavrilko
0 Replies
1213 Views
Last post October 21, 2013, 1218 UTC
by Sealord

 

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