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
1553 Views
Last post June 04, 2019, 2023 UTC
by i_hear_you
3 Replies
3240 Views
Last post August 28, 2014, 1843 UTC
by glimmer twin
elevated vertical antenna -- radials?

Started by bandarr3000

3 Replies
2096 Views
Last post April 14, 2018, 0712 UTC
by Stretchyman
3 Replies
2085 Views
Last post June 21, 2019, 1810 UTC
by ChrisSmolinski
3 Replies
2362 Views
Last post August 28, 2019, 2103 UTC
by ChrisSmolinski
3 Replies
4781 Views
Last post August 30, 2019, 1142 UTC
by Pigmeat
3 Replies
2651 Views
Last post December 08, 2014, 0156 UTC
by hfflunki
3 Replies
2118 Views
Last post April 30, 2018, 1659 UTC
by Josh
3 Replies
3897 Views
Last post February 21, 2015, 0326 UTC
by redhat
3 Replies
2851 Views
Last post September 05, 2019, 1020 UTC
by ChrisSmolinski
RF Components

Started by Oliver

3 Replies
4349 Views
Last post March 27, 2015, 1831 UTC
by redhat
3 Replies
7220 Views
Last post July 26, 2015, 0613 UTC
by BoomboxDX
3 Replies
3768 Views
Last post August 12, 2015, 1345 UTC
by redhat
3 Replies
2499 Views
Last post November 22, 2020, 1540 UTC
by ChrisSmolinski
3 Replies
2115 Views
Last post June 21, 2022, 2217 UTC
by RobRich
3 Replies
2212 Views
Last post August 22, 2018, 0139 UTC
by East Troy Don
3 Replies
3188 Views
Last post June 10, 2017, 0840 UTC
by Looking-Glass
3 Replies
3118 Views
Last post November 22, 2019, 1226 UTC
by ChrisSmolinski
3 Replies
1685 Views
Last post September 06, 2019, 1554 UTC
by Kage
3 Replies
2657 Views
Last post September 03, 2017, 1742 UTC
by R4002

 

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