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
1972 Views
Last post September 12, 2022, 0619 UTC
by Cole Kostoryz
0 Replies
1611 Views
Last post September 26, 2022, 2009 UTC
by Pigmeat
0 Replies
1354 Views
Last post October 16, 2022, 2256 UTC
by Pigmeat
0 Replies
1290 Views
Last post August 22, 2022, 1324 UTC
by Pigmeat
0 Replies
1616 Views
Last post March 02, 2022, 1552 UTC
by
0 Replies
5667 Views
Last post February 26, 2025, 1509 UTC
by TwoSidedDice
0 Replies
1624 Views
Last post September 10, 2022, 0153 UTC
by Bali_Frank
0 Replies
1652 Views
Last post October 25, 2021, 0236 UTC
by skyman
0 Replies
3136 Views
Last post May 16, 2020, 1458 UTC
by JimIO
Re:

Started by boxcarro

0 Replies
2772 Views
Last post February 03, 2021, 2330 UTC
by boxcarro
0 Replies
1641 Views
Last post March 02, 2022, 2137 UTC
by Doug
0 Replies
1632 Views
Last post December 04, 2022, 0208 UTC
by Pigmeat
0 Replies
2239 Views
Last post February 03, 2021, 2325 UTC
by boxcarro
Re: Simplest Tx

Started by JimIO

0 Replies
3216 Views
Last post April 12, 2020, 0013 UTC
by JimIO
1 Replies
1631 Views
Last post January 09, 2023, 0313 UTC
by Pigmeat
1 Replies
1779 Views
Last post December 03, 2022, 0159 UTC
by Pigmeat
1 Replies
2092 Views
Last post November 14, 2021, 2345 UTC
by skyman
1 Replies
2656 Views
Last post January 14, 2023, 0224 UTC
by Charlie_Dont_Surf
1 Replies
2297 Views
Last post November 24, 2024, 1538 UTC
by skyman
1 Replies
1807 Views
Last post January 03, 2023, 0127 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 T-Shirt
by MitchellTimeDesigns