RU3DNN — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Locator transmitted in a decoded message: KO96

Receiver-side FT8 activity involving RU3DNN, decoded by SO8OO in southeastern Poland. 956 related FT8 messages, 16 CQ messages, observed on 160m, 80m, 40m, 20m, 10m, across 69 UTC dates. Heard between 2026-05-25 and 2026-08-22.

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

956

Related messages

CQ messages

UTC dates heard

-5 dB

Mean decoder S/N

Bands

80m 20m 40m 10m 160m

First seen: 2026-05-25
Last seen: 2026-08-22 15:39 UTC

Frequent QSO partners observed at SO8OO

Stations RU3DNN worked most often, as logged from our receiver:

RI0SP · European Russia ×9 R4PF · European Russia ×3 R6NA · European Russia ×3 R95WTA · European Russia ×3 RA6ZD · European Russia ×3 RD6OX · European Russia ×3 RA4CQW/P · European Russia ×2 OJ0Z · Market Reef ×2 R3GO · European Russia ×2 R6FMF · European Russia ×2 R50RKZ · European Russia ×2 R3TAR · European Russia ×2

Activity Heatmap

Locator transmitted by RU3DNN

Approximate centre of KO96, decoded 2026-08-22 17:38 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	RU3DNN S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-22 17:36	40m	+1 / +2	R6MC	+7 / -	7	✓ Closing observed
08-22 17:31	40m	-3 / -	R1BQW/M	- / -9	5	Partial capture
08-22 17:26	40m	+4 / -	RW4HRE	- / -15	4	✓ Closing fragment
08-22 17:23	40m	-17 / -	R1530IG	- / -	2	Partial capture
08-22 17:20	40m	-9 / -	UB4FJC	- / -	2	Partial capture
08-22 16:45	40m	+1 / -	R9OON	- / -9	5	✓ Closing fragment
08-22 16:42	40m	-3 / -	R3DOE/P	- / -20	3	Partial capture
08-22 05:05	20m	-4 / -	AA4DD	- / -	3	Partial capture
08-20 06:01	20m	-10 / -	UA3VVA	- / -	2	Partial capture
08-20 05:57	20m	-10 / -	OE7LVI	- / -12	2	✓ Closing fragment
08-20 05:55	20m	-12 / -	F8MRQ	- / -6	2	✓ Closing fragment
08-20 05:53	20m	-16 / -	SP9WAZ	- / -18	2	Partial capture
08-20 05:50	20m	- / -10	M6WRB	-15 / -	2	✓ Closing fragment
08-18 17:37	40m	-10 / -	OH6HSD	- / -13	4	✓ Closing fragment
08-18 17:31	40m	-16 / -5	ON3MOH/P	-8 / -12	5	✓ Full exchange observed
08-18 16:58	40m	-18 / +8	RA3WPF	-13 / -3	4	✓ Full exchange observed
08-18 16:48	40m	-10 / -	R6OCU	- / -9	2	Partial capture
08-18 16:45	40m	-10 / -	RY3DAR	- / -8	2	Partial capture
08-18 16:32	40m	-9 / -12	RD7O	-15 / -7	3	✓ Full exchange observed
08-17 06:02	20m	-12 / -2	OZ3ACB	-7 / -16	4	✓ Full exchange observed
08-17 05:39	20m	+1 / -	RI1ANC	- / -	9	Partial capture
08-17 05:36	20m	-2 / -	R9FDE/P	- / -11	2	✓ Closing fragment
08-17 05:32	20m	-4 / -	RI1ANC	- / -	5	Partial capture
08-14 06:19	20m	-20 / -	RY6LAL	- / -10	2	✓ Closing fragment
08-14 06:16	20m	-20 / -	3V8HP	- / -	3	Partial capture
08-12 04:13	20m	-12 / 0	LZ3AN	-14 / -	3	✓ Closing observed
08-12 03:43	40m	-21 / -	OH3DJP	- / -	2	Partial capture
08-12 03:32	40m	-18 / -	RY4AAE	- / -	2	✓ Closing fragment
08-11 07:13	10m	-16 / -7	F1PBZ	-2 / -	3	✓ Closing observed
08-10 17:22	40m	- / -24	R50RKZ	-13 / -	3	Partial capture
08-10 16:41	40m	-23 / -	UB8CSU	- / -8	4	✓ Closing fragment
08-09 05:23	20m	-15 / -	OK1UOZ	- / +1	2	✓ Closing fragment
08-09 05:18	20m	-13 / -	RW0LD/P	- / -	5	✓ Closing fragment
08-09 05:12	20m	-10 / -	VK4AH	- / -	2	Partial capture
08-09 04:16	40m	-6 / -	CN8NS	-20 / -	2	✓ Closing observed
08-09 04:14	40m	-7 / -3	RA6ATZ	-23 / -1	4	✓ Full exchange observed
08-09 04:12	40m	-17 / -	TJ1GD/P	- / -	3	Partial capture
08-09 04:07	40m	-17 / -	TJ1GD/P	- / -19	2	Partial capture
08-09 03:13	80m	-1 / -	K1EZ	- / -	3	Partial capture
08-09 03:11	80m	0 / -11	<...>	-7 / -14	3	Partial capture
08-09 03:09	80m	-6 / -13	CR7BRV	-1 / -5	4	✓ Full exchange observed
08-09 03:06	80m	-1 / +8	OH0ERF	-24 / -5	4	✓ Full exchange observed
08-09 03:04	80m	-6 / -	CE2SV	- / -13	3	✓ Closing fragment
08-08 21:46	80m	0 / -	R50RKZ	-4 / -12	6	✓ Full exchange observed
08-08 21:45	80m	+4 / -3	RK7D	+10 / -5	4	✓ Full exchange observed
08-08 21:43	160m	+6 / -13	CT2GQA	-19 / -14	4	✓ Full exchange observed
08-08 21:05	80m	+9 / -	EA8AJ	-17 / -17	4	✓ Closing observed
08-08 21:02	80m	-2 / -7	Z3123KR	+6 / -	4	✓ Closing observed
08-08 21:02	80m	+10 / -	R0QBB/3	- / -10	2	Partial capture
08-08 21:01	80m	+8 / -	DO2TF	-2 / -9	8	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
172815  -2  514  RW4HRE RU3DNN R-15 (x2)
173030  +0  543  <...> RU3DNN KO96
173100  +0  543  <R1BQW/M> RU3DNN KO96 (x5)
173600  -3  544  R6MC RU3DNN KO96 (x4)
173845 +10  601  RU3DNN R6MC +02 (x2)
173930  +1  681  R6MC RU3DNN 73

20m

UTC    dB Audio  Message
053515 -11 2433  8Z1IT RU3DNN KO96
055000 -17  322  RU3DNN M6WRB -10 (x2)
055330 -16  634  SP9WAZ RU3DNN KO96 (x2)
055500 -15  634  F8MRQ RU3DNN -06 (x2)
055730  -9  634  OE7LVI RU3DNN -12 (x2)
060145 -11 2444  UA3VVA RU3DNN KO96 (x2)
050545  -2 1229  AA4DD RU3DNN KO96 (x3)
080600  -2 2614  RU3DNN R6DOB/M -10

10m

UTC    dB Audio  Message
062315 -10 2370  RU3DNN R1WBJ RR73
063300 +16 2690  RU3DNN 9A5WA +00 (x2)
072045 -22 1249  R6OEY RU3DNN KO96
093415  -1  500  RU3DNN TK5K RR73
093730 -11 1796  RU3DNN CN2DX -15 (x2)
094945 -17 2473  <...> RU3DNN KO96 (x2)
135545  -6 2244  RU3DNN IV3IUM JN65 (x2)
064745 -16 1208  OK2UQF RU3DNN RR73
071315 -16  880  F1PBZ RU3DNN KO96
071400  -2 2641  RU3DNN F1PBZ -07 (x2)

80m

UTC    dB Audio  Message
030545  -4 2260  CE2SV RU3DNN 73
030645  +1 2260  OH0ERF RU3DNN KO96
030700 -24 2372  RU3DNN OH0ERF +08
030715  -3 2260  OH0ERF RU3DNN R-05 (x2)
030900  -4 1060  CR7BRV RU3DNN KO96
030915  -1  750  RU3DNN CR7BRV -13
030930  -8 1060  CR7BRV RU3DNN R-05
030945  -1  749  RU3DNN CR7BRV RR73
031115  -4 1060  <...> RU3DNN KO96
031130  -7 1461  RU3DNN <...> -11
031145  +3 1060  <...> RU3DNN R-14
031330  +0 1060  K1EZ RU3DNN KO96 (x3)

160m

UTC    dB Audio  Message
195945  +2 1105  R1NO RU3DNN -09 (x2)
203115  +8  754  <...> RU3DNN KO96 (x2)
203315  +7  754  PA3FR RU3DNN KO96 (x3)
203430 -13 1628  RU3DNN PA3FR -08
203445  +7  754  PA3FR RU3DNN R-20
203500 -10 1628  RU3DNN PA3FR RR73
203515 +10  754  PA3FR RU3DNN 73
214315  +3 1343  CT2GQA RU3DNN KO96
214330 -19 1605  RU3DNN CT2GQA -13
214345  +8 1343  CT2GQA RU3DNN R-14 (x2)

Decoder S/N history by band

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