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
2 Replies
1313 Views
Last post April 24, 2020, 2250 UTC
by Strange Beacons
2 Replies
1755 Views
Last post April 18, 2020, 1321 UTC
by chanito
0 Replies
755 Views
Last post April 16, 2020, 2227 UTC
by sdruzer
6 Replies
1583 Views
Last post April 11, 2020, 1251 UTC
by EA2NR
5 Replies
1296 Views
Last post April 10, 2020, 2003 UTC
by Josh
MomComms

Started by chanito

4 Replies
1517 Views
Last post April 09, 2020, 2257 UTC
by chanito
3 Replies
1366 Views
Last post March 30, 2020, 2143 UTC
by Azimuth Coordinator
5 Replies
1577 Views
Last post March 18, 2020, 2023 UTC
by Dang
0 Replies
983 Views
Last post February 16, 2020, 0718 UTC
by Matt_B
6 Replies
2593 Views
Last post February 14, 2020, 1323 UTC
by R4002
1 Replies
921 Views
Last post February 10, 2020, 2023 UTC
by Josh
2 Replies
1258 Views
Last post February 06, 2020, 2208 UTC
by Matt285
2 Replies
1164 Views
Last post February 04, 2020, 2139 UTC
by Looking-Glass
0 Replies
877 Views
Last post January 24, 2020, 2021 UTC
by Matt_B
0 Replies
917 Views
Last post January 20, 2020, 2105 UTC
by Matt_B
1 Replies
1044 Views
Last post January 11, 2020, 0230 UTC
by Rurik
0 Replies
848 Views
Last post January 10, 2020, 2129 UTC
by Matt_B
0 Replies
736 Views
Last post January 08, 2020, 1521 UTC
by Ray Lalleu
2 Replies
1032 Views
Last post January 06, 2020, 1118 UTC
by kris
Happy New Year

Started by Rurik

5 Replies
1481 Views
Last post January 05, 2020, 0404 UTC
by Dude111

 

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