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
4 Replies
2478 Views
Last post July 17, 2022, 1850 UTC
by ThaDood
10 Replies
2479 Views
Last post June 14, 2019, 1557 UTC
by Ct Yankee
1 Replies
2484 Views
Last post September 09, 2023, 0053 UTC
by N2MLP
4 Replies
2486 Views
Last post July 26, 2015, 0639 UTC
by Zoidberg
1 Replies
2486 Views
Last post July 21, 2015, 1935 UTC
by Pigmeat
5 Replies
2486 Views
Last post October 02, 2016, 1650 UTC
by Pigmeat
5 Replies
2490 Views
Last post February 12, 2016, 2340 UTC
by Terry
2 Replies
2490 Views
Last post November 23, 2021, 2213 UTC
by Treehouse SWL
5 Replies
2491 Views
Last post October 16, 2015, 0038 UTC
by Skipmuck
8 Replies
2501 Views
Last post October 10, 2019, 2139 UTC
by Pigmeat
6 Replies
2503 Views
Last post October 16, 2019, 2210 UTC
by Josh
The Relay Station

Started by Unknown Name

5 Replies
2510 Views
Last post March 01, 2018, 1930 UTC
by TheRelayStation
Tire Pressure

Started by Fansome

10 Replies
2515 Views
Last post May 26, 2019, 2244 UTC
by Pigmeat
0 Replies
2516 Views
Last post November 08, 2013, 1445 UTC
by Echo_One
4 Replies
2523 Views
Last post October 09, 2017, 2323 UTC
by Pigmeat
3 Replies
2528 Views
Last post March 24, 2016, 1833 UTC
by John Poet
4 Replies
2533 Views
Last post October 07, 2019, 1959 UTC
by Josh
1 Replies
2537 Views
Last post November 27, 2018, 2054 UTC
by Josh
6 Replies
2546 Views
Last post March 23, 2017, 1857 UTC
by Josh
6 Replies
2557 Views
Last post December 15, 2022, 0300 UTC
by Pigmeat

 

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