OT4N — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Belgium Locator transmitted in a decoded message: JO10

Receiver-side FT8 activity involving OT4N, decoded by SO8OO in southeastern Poland. 72 related FT8 messages, 36 CQ messages, observed on 40m, 20m, across 4 UTC dates. Heard between 2026-08-07 and 2026-08-25.

These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.

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Overview

Related messages

CQ messages

UTC dates heard

-11 dB

Mean decoder S/N

Bands

40m 20m

First seen: 2026-08-07
Last seen: 2026-08-25 14:38 UTC

Frequent QSO partners observed at SO8OO

Stations OT4N worked most often, as logged from our receiver:

DK5EO · Fed. Rep. of Germany 2E0GSF · England DL3RN · Fed. Rep. of Germany DF6JF · Fed. Rep. of Germany I4WQH · Italy IZ8PPI · Italy M7PJM · England F4NKF · France M0SFW · England DM3XD · Fed. Rep. of Germany PH7KLM · Netherlands IU3WOH · Italy

Activity Heatmap

Locator transmitted by OT4N

Approximate centre of JO10, decoded 2026-08-25 16:37 UTC. A transmitted locator is not proof of the operator's permanent location.

Observed FT8 exchanges

S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.

Time UTC	Band	OT4N S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-25 16:44	40m	-10 / -	OZ/DL7UFH	- / -11	2	Partial capture
08-25 16:41	40m	-12 / -	<...>	- / +2	2	Partial capture
08-25 16:36	40m	-13 / -	F6DED	- / -12	4	✓ Closing fragment
08-25 16:35	40m	-11 / -10	DK5EO	-11 / +10	4	✓ Full exchange observed
08-25 16:33	40m	-10 / -3	OK1MAT	-7 / -7	3	✓ Full exchange observed
08-25 16:31	40m	-13 / -7	TK5NJ	-16 / -	3	✓ Closing observed
08-25 16:24	40m	-16 / -	M7PJM	- / +6	2	✓ Closing fragment
08-25 16:20	40m	-10 / -	IZ8PPI	- / -10	2	✓ Closing fragment
08-25 16:20	40m	-12 / +8	DL3RN	-1 / +4	4	✓ Full exchange observed
08-25 16:18	40m	-9 / -8	DM3XD	-17 / -	3	✓ Closing observed
08-25 16:14	40m	-10 / -	2E0GSF	- / +7	2	✓ Closing fragment
08-25 16:09	40m	-9 / -	F4NKF	- / -15	2	✓ Closing fragment
08-25 16:05	40m	-10 / -7	I4WQH	0 / +6	6	✓ Full exchange observed
08-25 16:02	40m	-8 / -	DF6JF	- / -17	2	✓ Closing fragment
08-25 16:01	40m	-9 / -	M0SFW	- / -12	2	✓ Closing fragment
08-25 14:51	40m	-20 / -5	DK0DK	-21 / -14	2	Partial capture
08-25 14:47	40m	- / -2	PH7KLM	-16 / -	3	✓ Closing fragment
08-25 14:44	40m	- / -7	DL4SE	-8 / -	3	✓ Closing fragment
08-25 14:39	40m	-19 / -9	OZ1SMB	-12 / -1	4	✓ Full exchange observed
08-25 14:36	40m	- / -1	IU3WOH	-12 / -	2	✓ Closing fragment
08-25 14:35	40m	- / -10	LA5AKA/P	-16 / -	2	✓ Closing fragment
08-07 07:45	20m	-10 / -	TA2EE	- / -	2	✓ Closing fragment
08-07 07:42	20m	- / -	UX0CZ	-2 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

40m

UTC    dB Audio  Message
163445 -14 2566  CQ OT4N JO10
163500  -8 2566  OT4N DK5EO JO31
163515 -11 2566  DK5EO OT4N +10
163530 -13 2566  OT4N DK5EO R-10 (x2)
163615 -12 2566  F6DED OT4N -12 (x3)
163745 -12 2566  CQ OT4N JO10
163800  -4 2566  OT4N UR4LG KN89
163815 -13 2566  F6DED OT4N RR73
164115 -11 2566  <...> OT4N +02 (x2)
164415 -12 2568  <OZ/DL7UFH> OT4N -11 (x2)

20m

UTC    dB Audio  Message
112215 -20 1097  <...> OT4N -06
073815 -18 2311  SQ9M OT4N -05
074215 -13 2355  TA2EE OT4N -11
074230  -4 2355  OT4N UX0CZ KN59
074245 -12 2355  YU4RBL OT4N -08
074300  -1 2355  OT4N UX0CZ KN59
074545 -12 2355  TA2EE OT4N RR73 (x2)
074715 -13 2355  CQ OT4N JO10 (x2)
080615 +10 2805  <...> OT4N -07
080900  +8 2883  SP2HF/9 OT4N -02

Decoder S/N history by band

Daily averages across messages associated with this profile as decoded at SO8OO.