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
433 Views
Last post August 20, 2021, 1507 UTC
by mewmew66
11m is hopping.

Started by MDK2

2 Replies
1386 Views
Last post June 30, 2018, 2132 UTC
by MDK2
11m activity

Started by MDK2

4 Replies
1699 Views
Last post May 25, 2017, 1545 UTC
by Josh
13 Replies
3655 Views
Last post June 03, 2018, 1355 UTC
by [tRMZ]
0 Replies
515 Views
Last post November 09, 2021, 2040 UTC
by MDK2
6 Replies
1742 Views
Last post December 21, 2019, 2333 UTC
by Pigmeat
Band opening

Started by Matt285

4 Replies
954 Views
Last post December 21, 2019, 2037 UTC
by Matt285
10M FM repeater activity

Started by Matt285 « 1 2 »

15 Replies
10644 Views
Last post May 23, 2021, 1807 UTC
by bamaDX
27.385 LSB this evening

Started by Matt285

2 Replies
1117 Views
Last post June 17, 2020, 2054 UTC
by chanito
Band opening

Started by Matt285

1 Replies
858 Views
Last post December 16, 2019, 0212 UTC
by Dude111
27.385 Mhz

Started by Matt285

13 Replies
3356 Views
Last post December 05, 2019, 1201 UTC
by Matt285
10m activity today

Started by Matt285

3 Replies
1125 Views
Last post May 14, 2019, 2235 UTC
by shadypyro
Reminiscing on CB radio

Started by Matt285

4 Replies
1359 Views
Last post November 30, 2019, 2101 UTC
by Leonard
10m US to UK/Europe

Started by Matt285

2 Replies
942 Views
Last post November 30, 2020, 1653 UTC
by Matt285
11m activity (Easter)

Started by Matt285

2 Replies
917 Views
Last post April 12, 2020, 2348 UTC
by Matt285
10m SSB activity

Started by Matt285

1 Replies
1132 Views
Last post January 24, 2019, 2305 UTC
by Josh
11m opening

Started by Matt285

8 Replies
1691 Views
Last post August 09, 2020, 1724 UTC
by Matt285
27.555

Started by Matt285 « 1 2 »

16 Replies
3766 Views
Last post February 13, 2020, 2145 UTC
by R4002
11 M activity

Started by Matt285

0 Replies
767 Views
Last post January 19, 2020, 2027 UTC
by Matt285
0 Replies
1421 Views
Last post October 20, 2013, 2056 UTC
by Magic73

 

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