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
2 Replies
2136 Views
Last post July 29, 2022, 2033 UTC
by liduck
SDR cable

Started by Matt285

4 Replies
2151 Views
Last post February 11, 2020, 1933 UTC
by nickcarr3151
4 Replies
2154 Views
Last post February 21, 2023, 1857 UTC
by Pigmeat
0 Replies
2164 Views
Last post May 20, 2022, 1741 UTC
by MDK2
0 Replies
2190 Views
Last post June 12, 2018, 1534 UTC
by IQ_imbalance
0 Replies
2202 Views
Last post July 20, 2014, 2136 UTC
by IQ_imbalance
Birdies RX-888

Started by Triker

3 Replies
2212 Views
Last post June 14, 2021, 2307 UTC
by RobRich
0 Replies
2220 Views
Last post May 10, 2024, 1943 UTC
by Ray Lalleu
0 Replies
2231 Views
Last post August 06, 2024, 1951 UTC
by RobRich
2 Replies
2238 Views
Last post June 06, 2020, 1733 UTC
by syfr
2 Replies
2255 Views
Last post September 16, 2024, 2350 UTC
by boston_strangler
0 Replies
2287 Views
Last post August 07, 2024, 1622 UTC
by ThaDood
1 Replies
2298 Views
Last post December 14, 2019, 1817 UTC
by Brian
0 Replies
2305 Views
Last post May 10, 2024, 1248 UTC
by MDK2
1 Replies
2316 Views
Last post November 01, 2019, 1910 UTC
by Josh
1 Replies
2320 Views
Last post April 30, 2020, 2129 UTC
by syfr
1 Replies
2330 Views
Last post February 22, 2014, 1642 UTC
by ChrisSmolinski
2 Replies
2342 Views
Last post September 03, 2020, 1503 UTC
by CoolAM Radio
1 Replies
2401 Views
Last post March 12, 2021, 1332 UTC
by raypfaff
3 Replies
2402 Views
Last post January 10, 2019, 1948 UTC
by Josh

 

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