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
3 Replies
684 Views
Last post August 24, 2019, 2313 UTC
by Ray Lalleu
2 Replies
684 Views
Last post November 17, 2021, 2102 UTC
by ChrisSmolinski
2 Replies
684 Views
Last post May 24, 2022, 2118 UTC
by Ray Lalleu
2 Replies
684 Views
Last post July 01, 2019, 1021 UTC
by Ray Lalleu
2 Replies
684 Views
Last post April 15, 2022, 1054 UTC
by Mad Radio DXer UK
1 Replies
684 Views
Last post December 15, 2018, 2302 UTC
by ChrisSmolinski
1 Replies
684 Views
Last post December 30, 2018, 0544 UTC
by OZDXer
3 Replies
683 Views
Last post May 03, 2021, 1627 UTC
by The Vault Keeper
1 Replies
683 Views
Last post May 31, 2018, 0959 UTC
by The Ether Hacker
1 Replies
683 Views
Last post June 02, 2018, 2014 UTC
by Ray Lalleu
2 Replies
683 Views
Last post May 23, 2019, 0834 UTC
by Harmony
4 Replies
683 Views
Last post August 29, 2021, 2236 UTC
by kris
1 Replies
683 Views
Last post May 02, 2021, 1654 UTC
by R319
2 Replies
683 Views
Last post October 05, 2018, 2204 UTC
by DimBulb
4 Replies
683 Views
Last post February 15, 2025, 2248 UTC
by ukdxer
3 Replies
683 Views
Last post November 07, 2020, 0753 UTC
by R319
2 Replies
683 Views
Last post July 09, 2021, 2014 UTC
by Grey Fox
1 Replies
683 Views
Last post April 03, 2019, 1537 UTC
by radio merlin
4 Replies
683 Views
Last post June 09, 2024, 1340 UTC
by Benoit LEVEQUE
3 Replies
683 Views
Last post August 07, 2021, 1901 UTC
by kris

 

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