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.

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Subject / Started by	Replies / Views	Last post
43m broadband oddity Started by IQ_imbalance	2 Replies 695 Views	December 19, 2021, 2239 UTC by ~SIGINT~
UNID 6965 (CF) 2200 UTC 09 DEC 2021 Started by ~SIGINT~	4 Replies 958 Views	December 11, 2021, 1549 UTC by Token
All 1 PPS pip / pulse / tick logs here please Started by GC « 1 2 3 4 5 6 7 8 9 10 »	138 Replies 40129 Views	December 10, 2021, 1855 UTC by Josh
Russian Mystery Military Station - The Alarm Started by ~SIGINT~	0 Replies 1418 Views	December 08, 2021, 0022 UTC by ~SIGINT~
UNID 6970 2019 UTC 19 NOV 2021--see waterfall Started by IQ_imbalance	6 Replies 1222 Views	November 24, 2021, 2119 UTC by Traveling Wave
MOVED: Unid CW 5916 khz CW 0500 UTC 13 November 2021 Started by Token	0 Replies 494 Views	November 14, 2021, 1953 UTC by Token
UNID WF SIG 6.955 0155 UTC 1 October 2021 Started by Paul Turkk	2 Replies 996 Views	November 03, 2021, 1332 UTC by Token
UNID wideband UTE 5125 USB 2147 UTC 10 Sep 2021 Started by ulx2	2 Replies 1088 Views	September 11, 2021, 2306 UTC by ulx2
Want to identify this 11387 Started by gcopter1	4 Replies 1531 Views	August 05, 2021, 0254 UTC by ~SIGINT~
5696u open mic bridged comms channel? Started by McRadioface	5 Replies 1154 Views	August 01, 2021, 0217 UTC by ~SIGINT~
Fast pips, episodic, repeating 40 m Started by Dag	0 Replies 632 Views	July 25, 2021, 0042 UTC by Dag
UNID 13925-13975 UTE? Digital? 2354 UTC 16 July 2021 Started by RobRich	9 Replies 1240 Views	July 18, 2021, 2015 UTC by ~SIGINT~
Goose-like 3510 USB 0034 utc 12th Apr 2021 Started by Ethernut	0 Replies 1022 Views	April 12, 2021, 0036 UTC by Ethernut
Amateur Band 14.125mhz unknown data Started by bodyguardnz	1 Replies 973 Views	April 05, 2021, 2138 UTC by Token
Very short pips (mostly double; some single), 4 second interval, numerous freqs Started by alleycat	3 Replies 1103 Views	April 02, 2021, 0014 UTC by Dag
Amateur mode 7040kHz PSK variant? Started by alleycat	0 Replies 698 Views	March 30, 2021, 0143 UTC by alleycat
Strange data (?) signal on 6860 kHz Started by WA4FHY	0 Replies 962 Views	March 28, 2021, 0411 UTC by WA4FHY
12946 khz data Started by ZS6AF	0 Replies 649 Views	March 16, 2021, 1618 UTC by ZS6AF
7040 kHz - 5 second bursts, 150 kHz bandwidth Started by alleycat	2 Replies 820 Views	March 14, 2021, 2058 UTC by alleycat
New BUZZ sound on HF bands Started by Crellitor	6 Replies 1910 Views	March 08, 2021, 1904 UTC by Token