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 permissable in your locale.

Subject / Started by Last post
Project 775

Started by Josh « 1 2 3 »

42 Replies
12559 Views
Last post April 05, 2020, 2032 UTC
by Josh
4 Replies
1040 Views
Last post April 06, 2020, 0408 UTC
by Charlie_Dont_Surf
1 Replies
581 Views
Last post April 10, 2020, 0711 UTC
by Pigmeat
ARRL Cancellations at al

Started by Fansome

0 Replies
603 Views
Last post April 11, 2020, 1744 UTC
by Fansome
2 Replies
984 Views
Last post April 27, 2020, 1946 UTC
by Josh
3 Replies
1111 Views
Last post May 11, 2020, 0015 UTC
by ThaDood
6 Replies
1318 Views
Last post June 15, 2020, 0032 UTC
by pinto vortando
0 Replies
624 Views
Last post June 19, 2020, 2309 UTC
by ThaDood
2 Replies
926 Views
Last post June 23, 2020, 1814 UTC
by ThaDood
0 Replies
618 Views
Last post June 23, 2020, 2104 UTC
by ThaDood
1 Replies
773 Views
Last post July 04, 2020, 1035 UTC
by cj468
0 Replies
727 Views
Last post July 05, 2020, 1328 UTC
by Strange Beacons
1 Replies
808 Views
Last post July 28, 2020, 1448 UTC
by Polar Bear
7 Replies
1411 Views
Last post July 29, 2020, 2223 UTC
by ChrisSmolinski
Amateur satellite operation

Started by Matt285

3 Replies
766 Views
Last post July 30, 2020, 1954 UTC
by ThaDood
0 Replies
618 Views
Last post August 06, 2020, 0607 UTC
by ThaDood
Yaesu FT-817/818 CW filter

Started by Matt285

3 Replies
1642 Views
Last post August 14, 2020, 1932 UTC
by Matt285
0 Replies
626 Views
Last post August 19, 2020, 1901 UTC
by ThaDood
1 Replies
695 Views
Last post August 26, 2020, 1824 UTC
by ThaDood
3 Replies
882 Views
Last post September 03, 2020, 1901 UTC
by Fansome

 

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