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
269 Views
Last post January 04, 2024, 1655 UTC
by R4002
0 Replies
985 Views
Last post July 11, 2017, 2115 UTC
by R4002
6 Replies
1910 Views
Last post June 26, 2019, 2026 UTC
by R4002
0 Replies
846 Views
Last post June 25, 2017, 2020 UTC
by R4002
2 Replies
613 Views
Last post August 01, 2023, 1714 UTC
by R4002
0 Replies
902 Views
Last post June 12, 2017, 2034 UTC
by R4002
0 Replies
773 Views
Last post April 23, 2017, 1831 UTC
by R4002
0 Replies
515 Views
Last post January 20, 2023, 1201 UTC
by R4002
0 Replies
3068 Views
Last post April 12, 2013, 1658 UTC
by R4002
0 Replies
1782 Views
Last post March 04, 2016, 1953 UTC
by R4002
1 Replies
628 Views
Last post September 22, 2021, 1114 UTC
by R4002
0 Replies
1797 Views
Last post November 20, 2015, 2138 UTC
by R4002
1 Replies
936 Views
Last post August 03, 2018, 1802 UTC
by Josh
4 Replies
1883 Views
Last post October 21, 2015, 1709 UTC
by R4002
2 Replies
448 Views
Last post January 05, 2024, 1741 UTC
by R4002
0 Replies
1362 Views
Last post July 11, 2017, 2113 UTC
by R4002
0 Replies
1341 Views
Last post June 25, 2017, 2016 UTC
by R4002
0 Replies
1019 Views
Last post June 12, 2017, 2005 UTC
by R4002
0 Replies
763 Views
Last post April 23, 2017, 1803 UTC
by R4002
0 Replies
1353 Views
Last post February 28, 2016, 1653 UTC
by R4002

 

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

Locked Topic
Sticky Topic
Poll



Item image   Simplified Practical Filter Design by Irving M. Gottlieb

 $14.95