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
510 Views
Last post November 11, 2021, 1903 UTC
by ZFT
0 Replies
513 Views
Last post January 13, 2023, 1403 UTC
by R4002
0 Replies
513 Views
Last post October 14, 2022, 1337 UTC
by RobRich
0 Replies
513 Views
Last post January 05, 2022, 1654 UTC
by hammarhead
0 Replies
513 Views
Last post March 06, 2022, 1839 UTC
by flexoman61
2 Replies
515 Views
Last post March 19, 2023, 1714 UTC
by HF DXER
0 Replies
515 Views
Last post November 09, 2021, 2040 UTC
by MDK2
0 Replies
516 Views
Last post January 07, 2023, 2243 UTC
by UtilitySeattle
1 Replies
516 Views
Last post January 29, 2023, 1729 UTC
by manfred
0 Replies
517 Views
Last post June 24, 2022, 1248 UTC
by R4002
0 Replies
518 Views
Last post February 13, 2023, 1814 UTC
by R4002
2 Replies
519 Views
Last post October 02, 2022, 1507 UTC
by ChrisSmolinski
1 Replies
519 Views
Last post February 04, 2022, 2330 UTC
by Elf36
0 Replies
521 Views
Last post February 07, 2022, 1141 UTC
by RobRich
0 Replies
522 Views
Last post January 15, 2022, 0044 UTC
by UtilitySeattle
26.540 LSB

Started by HF DXER

1 Replies
523 Views
Last post January 12, 2023, 1204 UTC
by R4002
1 Replies
525 Views
Last post July 27, 2023, 0448 UTC
by shadypyro
1 Replies
526 Views
Last post July 15, 2022, 1832 UTC
by ThaDood
3 Replies
526 Views
Last post March 01, 2024, 1813 UTC
by IrvingtonVFD43
0 Replies
527 Views
Last post June 08, 2021, 0146 UTC
by RobRich

 

Normal Topic
Hot Topic (More than 15 replies)
Very Hot Topic (More than 25 replies)

Locked Topic
Sticky Topic
Poll


HFUnderground T-Shirt
HFUnderground House Flag
by MitchellTimeDesigns