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
Ham radio satellites (AMSAT)

Started by Matt285

1 Replies
2754 Views
Last post June 18, 2019, 2312 UTC
by Josh
1 Replies
2143 Views
Last post November 20, 2017, 2219 UTC
by Rob.
2 Replies
1629 Views
Last post January 20, 2021, 1502 UTC
by raypfaff
11 Replies
4137 Views
Last post November 29, 2018, 2230 UTC
by R4002
0 Replies
2501 Views
Last post December 11, 2014, 1021 UTC
by dxextra
6 Replies
2207 Views
Last post January 23, 2020, 1540 UTC
by R4002
7 Replies
1258 Views
Last post December 09, 2022, 1653 UTC
by sat_dxer
0 Replies
1326 Views
Last post May 15, 2020, 0204 UTC
by WA4FHY
0 Replies
362 Views
Last post April 12, 2024, 1755 UTC
by R4002
0 Replies
695 Views
Last post January 12, 2023, 1652 UTC
by R4002
0 Replies
387 Views
Last post December 14, 2023, 1524 UTC
by R4002
2 Replies
871 Views
Last post December 20, 2022, 1451 UTC
by R4002
FLTSATCOM

Started by Matt285 « 1 2 »

15 Replies
8825 Views
Last post March 30, 2020, 1134 UTC
by arucivetos
0 Replies
320 Views
Last post January 30, 2024, 2000 UTC
by R4002
0 Replies
1381 Views
Last post February 19, 2021, 1838 UTC
by ThaDood
F-16 SATCOM

Started by PRO2006

9 Replies
6369 Views
Last post November 19, 2019, 0044 UTC
by Josh
1 Replies
454 Views
Last post June 04, 2024, 1436 UTC
by R4002
4 Replies
1913 Views
Last post December 29, 2019, 1835 UTC
by SV1XV
1 Replies
5550 Views
Last post April 22, 2017, 2142 UTC
by Strange Beacons
0 Replies
319 Views
Last post January 30, 2024, 1607 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 House Flag
by MitchellTimeDesigns