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
the 4094 mystery

Started by dogman

12 Replies
7363 Views
Last post December 23, 2021, 0153 UTC
by dogman
Gendarme

Started by Dave Richards

7 Replies
7328 Views
Last post August 10, 2022, 1627 UTC
by Dave Richards
Music Of The Sphears

Started by tesla « 1 2 »

17 Replies
7122 Views
Last post October 04, 2016, 0103 UTC
by tesla
13 Replies
7068 Views
Last post November 08, 2012, 2057 UTC
by zackers
11 Replies
7050 Views
Last post January 06, 2022, 1658 UTC
by Teotwaki
A "pop up" beacon

Started by beaconpop « 1 2 »

17 Replies
7007 Views
Last post February 12, 2022, 1617 UTC
by Teotwaki
11 Replies
6985 Views
Last post February 17, 2014, 2146 UTC
by ka1iic
16 Replies
6935 Views
Last post March 07, 2018, 1354 UTC
by tesla
5 Replies
6853 Views
Last post April 23, 2020, 0946 UTC
by MojaveBeaconeer
12 Replies
6848 Views
Last post June 09, 2024, 2202 UTC
by Teotwaki
3 Replies
6839 Views
Last post March 29, 2009, 0339 UTC
by beaconman
12 Replies
6693 Views
Last post August 18, 2012, 1222 UTC
by ChrisSmolinski
28 Replies
6662 Views
Last post November 19, 2016, 2305 UTC
by tesla
11 Replies
6659 Views
Last post December 08, 2014, 1257 UTC
by ChrisSmolinski
OR

Started by beaconman

3 Replies
6605 Views
Last post April 04, 2009, 0245 UTC
by mark-n-nut
11 Replies
6601 Views
Last post November 27, 2021, 1636 UTC
by Teotwaki
8 Replies
6594 Views
Last post February 12, 2019, 1552 UTC
by sat_dxer
5 Replies
6560 Views
Last post March 11, 2025, 1406 UTC
by Teotwaki
13 Replies
6538 Views
Last post December 20, 2012, 1310 UTC
by Sealord
Pirate Beacons Heard In Colorado

Started by HQ180 « 1 2 »

17 Replies
6534 Views
Last post July 18, 2022, 1444 UTC
by HQ180

 

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