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
1030 Views
Last post March 19, 2020, 0017 UTC
by Pigmeat
30 meters

Started by Matt285

13 Replies
2472 Views
Last post March 18, 2020, 2123 UTC
by Matt285
HF activity is on the rise

Started by Matt285

4 Replies
1440 Views
Last post March 17, 2020, 2036 UTC
by ThaDood
Thoughts on HF verticals

Started by Matt285 « 1 2 »

16 Replies
4320 Views
Last post March 17, 2020, 1937 UTC
by nickcarr3151
Back on HF again!

Started by Matt285

8 Replies
1874 Views
Last post March 13, 2020, 2143 UTC
by nickcarr3151
QRP contacts

Started by Matt285

6 Replies
1497 Views
Last post February 17, 2020, 1207 UTC
by Matt285
2 Replies
1301 Views
Last post February 17, 2020, 0354 UTC
by MrMomB
1 Replies
1039 Views
Last post February 15, 2020, 1923 UTC
by ThaDood
HF AM frequencies

Started by Matt285

8 Replies
2558 Views
Last post February 10, 2020, 2122 UTC
by Rob.
Kinda funny CW story

Started by Matt285

0 Replies
932 Views
Last post February 08, 2020, 2137 UTC
by Matt285
8 Replies
1725 Views
Last post February 08, 2020, 1911 UTC
by ThaDood
2 Replies
1056 Views
Last post February 08, 2020, 1909 UTC
by ThaDood
2 Replies
1276 Views
Last post February 06, 2020, 2151 UTC
by Josh
9 Replies
2625 Views
Last post February 06, 2020, 1819 UTC
by Ticom
4 Replies
1524 Views
Last post February 03, 2020, 0151 UTC
by Pigmeat
HT Antenna

Started by Matt285

10 Replies
2194 Views
Last post January 30, 2020, 2007 UTC
by Matt285
0 Replies
908 Views
Last post January 28, 2020, 2133 UTC
by Fansome
11 Replies
1885 Views
Last post January 28, 2020, 1505 UTC
by ChrisSmolinski
UHF/VHF repeater activity

Started by Matt285

9 Replies
1759 Views
Last post January 26, 2020, 2205 UTC
by Josh
2 Replies
1293 Views
Last post January 22, 2020, 1628 UTC
by pinto vortando

 

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