RL3K — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO91

Receiver-side FT8 activity involving RL3K, decoded by SO8OO in southeastern Poland. 5,681 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 99 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-12.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 5,681 FT8 messages attributed to RL3K as the transmitting token by decoded message structure across 99 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (45%), followed by 20 m (29%) and 10 m (23%). Most decodes (55%) fell within the six-hour window 18:00-00:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

5,681

Messages attributed

UTC dates decoded

925

Active 15-min windows

-10 dB

Estimated median S/N

Bands

80m · 146 40m · 2,555 20m · 1,670 10m · 1,310

First attributed message: 2026-06-06
Last attributed message: 2026-09-12 22:46 UTC

Observed FT8 message patterns

Attributed sample: 5,681 messages
Active dates: 99 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -19.4 to +3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,481, moderate (-15 to -9 dB) 1,726, strong (≥ -8 dB) 2,474.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with RL3K in decoded directed-looking exchanges:

UA6EED · European Russia ×4 RN3YN · European Russia ×4 RU6UR · European Russia ×3 UA3YPS · European Russia ×3 R4CHN · European Russia ×3 E70Z · Bosnia-Herzegovina ×2 LZ2EV · Bulgaria ×2 M1DDD/P · England ×2 OH5WWA · Finland ×2 R3CE · European Russia ×2 RW4COM · European Russia ×2 SV4OZF · Greece ×2

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to RL3K

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator: KO91 · 3,757 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,221 km (approx.)
Last such locator decoded: 2026-09-12 22:46 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

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	RL3K S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-12 22:41	40m	+1 / -12	CT2JTN	-6 / -	16	Partial capture
09-12 22:38	40m	-1 / -	YU2MMT	- / -12	5	✓ Closing fragment
09-12 22:30	40m	-4 / -8	2W0YLE	-12 / -15	13	Partial capture
09-12 22:27	40m	-2 / -	RU6UR	- / -18	3	✓ Closing fragment
09-12 22:20	40m	+4 / +3	M1EAG	-4 / -11	14	✓ Full exchange observed
09-12 22:18	40m	-9 / -	BD3PPH	- / -	2	✓ Closing fragment
09-12 22:15	40m	-7 / -	II7IABB	- / -12	3	Partial capture
09-12 22:11	40m	-2 / -1	M0OPK	-8 / -12	5	✓ Full exchange observed
09-12 22:09	40m	-2 / -	BD3PPH	- / -	3	Partial capture
09-12 19:23	40m	-14 / -	R4LBG	- / -	2	Partial capture
09-12 18:26	80m	- / +1	R5BS	-10 / -	2	✓ Closing fragment
09-12 18:24	80m	-12 / -16	RT2P	-19 / -16	6	✓ Full exchange observed
09-12 17:20	40m	-6 / -	UB3ADO/P	- / -9	2	Partial capture
09-12 17:11	40m	-2 / -	OH9GIA	- / -19	2	✓ Closing fragment
09-12 17:08	40m	-4 / -	R1BPW	- / -	2	Partial capture
09-12 17:06	40m	-4 / -	MM3JFM	- / -	3	Partial capture
09-12 16:57	40m	-5 / -	RA0AB	- / -20	3	✓ Closing fragment
09-12 14:14	40m	-10 / -	SP7VCL	- / -	8	Partial capture
09-12 14:12	40m	-13 / -	R2DAY	- / -8	2	✓ Closing fragment
09-12 14:10	40m	-14 / -	RA0AB	- / -	2	Partial capture
09-12 14:09	40m	-18 / -	R2DAY	- / -	2	Partial capture
09-11 22:26	40m	-16 / -	R4HOH/QRP	- / -9	3	Partial capture
09-11 22:18	40m	-22 / -	IU1NGT	- / -	4	Partial capture
09-11 22:14	40m	- / -4	G0SKW	-7 / -	3	✓ Closing fragment
09-11 21:59	40m	-20 / -	BG0FQU	- / -22	2	Partial capture
09-11 21:56	40m	-19 / -	SP9AU	- / -	4	Partial capture
09-11 20:56	40m	-17 / -11	ON6DL	+4 / -13	8	✓ Full exchange observed
09-11 20:54	40m	-18 / -	G0JJL/P	- / -16	2	✓ Closing fragment
09-11 20:49	40m	-20 / -	LZ2PC	- / -	3	Partial capture
09-11 20:44	40m	-15 / -	OE1SGS	- / -	2	✓ Closing fragment
09-11 20:37	40m	-12 / -	IU1VQG	- / -	3	Partial capture
09-11 20:30	40m	-13 / -	LZ2VQ	- / -	3	Partial capture
09-11 20:27	40m	-11 / -	ES7GN	- / -	6	Partial capture
09-11 20:23	40m	-8 / -	LZ2VQ	- / -	2	Partial capture
09-11 20:18	40m	-2 / -	JA8DNV	- / -16	7	✓ Closing fragment
09-11 20:15	40m	-3 / -	EU4ABJ/P	- / -	5	Partial capture
09-11 20:09	40m	-3 / -	GI7LOU	- / -	9	Partial capture
09-11 20:04	40m	0 / -	LZ2VQ	- / -	9	Partial capture
09-11 20:02	40m	+1 / -	IU1VQG	- / -	4	Partial capture
09-11 19:02	40m	-6 / -18	M6LBE	-18 / -	2	✓ Closing observed
09-11 18:22	40m	-12 / -	UC6W	- / -20	2	✓ Closing fragment
09-11 18:04	80m	-11 / -	R6AO	- / -	3	Partial capture
09-11 18:02	80m	-8 / -	RA3RPW	- / -15	3	✓ Closing fragment
09-11 18:00	80m	-10 / -4	RK2A	+7 / -9	3	✓ Full exchange observed
09-11 17:49	80m	- / -12	R2AVW	+6 / -	2	✓ Closing fragment
09-11 17:44	80m	-10 / -	R5BM/M	- / -9	3	Partial capture
09-10 22:51	80m	-13 / -9	SP6JIU	+26 / -	4	✓ Closing observed
09-10 22:19	40m	-7 / -	K1ZZ	- / -	3	Partial capture
09-10 22:09	40m	-7 / -	ON5WR	- / -	4	Partial capture
09-10 22:02	40m	-10 / -14	G6ROB	-10 / -	3	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
224215  -1 1504  CT2JTN RL3K KO91 (x9)
224700  -9 1504  RL3K CT2JTN -12 (x6)

80m

UTC    dB Audio  Message
180515 -12 2295  R6AO RL3K KO91 (x3)
181100 -11 2295  SV8/F2VX RL3K KO91
181130 -13 2294  <HF100PKP> RL3K KO91
182415 -13  289  RT2P RL3K R-16
182430 -19  289  RL3K RT2P -16
182445 -11  288  RT2P RL3K R-17
182500 -19  289  RL3K RT2P RR73
182515 -12  289  RT2P RL3K 73
182530 -19  289  RL3K RT2P RR73
182615 -13 2248  RL3K R5BS +01 (x2)
183600  +7 1754  RL3K LZ1EV -13
183630  +8 1754  RL3K RR73; R3DFS <...> -12

20m

UTC    dB Audio  Message
112200 +13 1041  F1NQP RL3K 73
112630 +11 1041  MW7GQB RL3K KO91 (x7)
113230  +9 1027  SM7JKW RL3K KO91 (x3)
113515  +6 1088  SQ9ONX RL3K KO91 (x4)

10m

UTC    dB Audio  Message
194930 -13 1488  SP8AOV RL3K KO91 (x3)
195200  +2 2969  LZ1QV RL3K KO91
113445  +1  313  RL3K PD5FK -20 (x2)
114015 -20 1601  RL3K LA4GHA RR73
115300  +1 2597  RL3K DO3BZ RR73 (x2)
075915 -20 2210  RL3K SV4OZF -06 (x2)
080000 -22 1499  SV4OZF RL3K 73
083230 -16 1243  HS0ZOY RL3K KO91 (x2)
083530 -15 1243  SQ5NAN RL3K R-22

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

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