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
1482 Views
Last post April 13, 2017, 0607 UTC
by R4002
0 Replies
2049 Views
Last post February 22, 2017, 2333 UTC
by PirateSWL
0 Replies
1943 Views
Last post February 23, 2017, 0018 UTC
by ChrisSmolinski
0 Replies
1324 Views
Last post March 21, 2017, 1407 UTC
by R4002
0 Replies
1204 Views
Last post March 21, 2017, 1405 UTC
by R4002
0 Replies
1305 Views
Last post March 20, 2017, 2217 UTC
by ChrisSmolinski
0 Replies
1421 Views
Last post March 19, 2017, 1510 UTC
by R4002
0 Replies
1551 Views
Last post March 16, 2017, 2347 UTC
by R4002
0 Replies
1258 Views
Last post April 13, 2017, 0632 UTC
by R4002
0 Replies
1535 Views
Last post March 16, 2017, 0244 UTC
by R4002
0 Replies
1471 Views
Last post March 16, 2017, 0232 UTC
by R4002
0 Replies
1425 Views
Last post March 16, 2017, 0229 UTC
by R4002
0 Replies
632 Views
Last post July 08, 2025, 1926 UTC
by RadioLongWire
0 Replies
1367 Views
Last post March 16, 2017, 0220 UTC
by R4002
0 Replies
1556 Views
Last post March 15, 2017, 2326 UTC
by R4002
0 Replies
3062 Views
Last post March 15, 2017, 2106 UTC
by aquabat
0 Replies
1992 Views
Last post March 15, 2017, 1307 UTC
by R4002
0 Replies
3304 Views
Last post March 09, 2017, 0002 UTC
by aquabat
0 Replies
1221 Views
Last post April 12, 2017, 1127 UTC
by ChrisSmolinski
0 Replies
1725 Views
Last post February 26, 2017, 0122 UTC
by ChrisSmolinski

 

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