R3PLN — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO83

Receiver-side FT8 activity involving R3PLN, decoded by SO8OO in southeastern Poland. 1,646 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 24 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-05.

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 1,646 FT8 messages attributed to R3PLN as the transmitting token by decoded message structure across 24 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (51%), followed by 80 m (31%) and 20 m (17%). Most decodes (55%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

1,646

Messages attributed

UTC dates decoded

148

Active 15-min windows

-8 dB

Estimated median S/N

Bands

80m · 504 40m · 845 20m · 286 10m · 11

First attributed message: 2026-06-06
Last attributed message: 2026-09-05 20:25 UTC

Observed FT8 message patterns

Attributed sample: 1,646 messages
Active dates: 24 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -17 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 214, moderate (-15 to -9 dB) 536, strong (≥ -8 dB) 896.

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 R3PLN in decoded directed-looking exchanges:

RD3FY · European Russia ×2 HA3GX · Hungary ×2 OE5ROR · Austria ×2 R2DYN · European Russia ×2 F1PBZ · France ×2 UI6O · European Russia ×2 4L6EZ · Georgia RN9N · Asiatic Russia UA9FGR · European Russia 8Q7PR · Maldives PA1PXL · Netherlands TA3NK · Asiatic Turkey

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 R3PLN

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: KO83 · 1,288 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,117 km (approx.)
Last such locator decoded: 2026-09-05 20:24 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	R3PLN S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-05 20:24	80m	+3 / -	R2AZM	- / +1	3	✓ Closing fragment
09-05 20:19	80m	+3 / +2	RA3MT	-13 / +3	14	✓ Full exchange observed
09-05 20:11	80m	+2 / -	RA2FU	- / -	2	Partial capture
09-05 20:07	80m	0 / -	R3KLE	-6 / -	6	✓ Full exchange observed
08-31 17:22	80m	+6 / -	RA9CUU	- / -13	3	✓ Closing fragment
08-31 17:21	80m	+4 / -	R3WDU	- / -12	3	✓ Closing fragment
08-31 17:19	80m	+3 / -	UA3NCN	- / -6	3	✓ Closing fragment
08-31 17:15	80m	+3 / -	UA9CFH	- / -23	5	✓ Closing fragment
08-31 17:13	80m	0 / -1	4L6EZ	-10 / -2	4	✓ Full exchange observed
08-31 17:10	80m	+2 / -	RA9QBR	- / -4	4	✓ Closing fragment
08-31 17:09	80m	+2 / -	R3PA	-18 / -	3	✓ Closing observed
08-31 17:08	80m	+2 / -9	UA3NCN	-12 / -	4	Partial capture
08-31 10:33	20m	- / -20	M9YLR	-10 / -	5	✓ Closing fragment
08-27 18:19	80m	-8 / -	R2EA/P	- / -15	6	✓ Closing fragment
08-25 16:58	40m	-2 / -	RU3BF	- / -10	2	✓ Closing fragment
08-25 16:56	40m	-3 / -	UA3IDQ	- / -17	3	✓ Closing fragment
08-25 16:54	40m	-1 / -	UB8AHK	- / -	2	Partial capture
08-25 16:52	40m	-1 / -	R1WCK	- / -18	3	✓ Closing fragment
08-25 16:50	40m	+2 / -	R4LBD	- / +9	4	✓ Closing fragment
08-25 16:49	40m	-1 / +5	UA3RBM	-1 / -	4	✓ Full exchange observed
08-25 16:46	40m	0 / 0	RC6OZ	-2 / -9	4	✓ Full exchange observed
08-25 16:44	40m	+1 / -	R8CKD	- / -4	2	✓ Closing fragment
08-25 16:41	40m	-2 / -6	PA1PXL	-8 / -24	5	✓ Full exchange observed
08-25 16:38	40m	-1 / +3	RA3PGR	-15 / -3	5	✓ Full exchange observed
08-25 16:08	40m	-2 / -	RA6LTD	-6 / +5	5	✓ Full exchange observed
08-25 16:07	40m	-2 / -	R9WFT	- / -2	4	✓ Closing fragment
08-25 15:38	40m	-6 / -	R3UDU	- / +9	2	Partial capture
08-25 15:33	40m	-2 / -	R2BRD	- / -17	2	Partial capture
08-25 15:15	40m	-12 / -6	R2FDP/P	-14 / -23	12	✓ Full exchange observed
08-10 13:46	20m	- / -21	EA5HEU	-3 / -	3	✓ Closing fragment
08-10 13:22	20m	- / -20	PA2AMJ	-15 / -	3	✓ Closing fragment
08-10 09:56	20m	- / -18	PD2WL	-6 / -	6	✓ Closing fragment
08-10 09:53	20m	- / -13	F4BYA/P	-8 / -	3	✓ Closing fragment
08-10 09:47	20m	- / -20	F4BYA/P	-6 / -	3	Partial capture
08-10 07:07	20m	- / -6	DL9KM	-5 / -	3	✓ Closing fragment
08-10 06:23	20m	-20 / -	IU2THY	+3 / -14	6	Partial capture
08-10 05:56	20m	- / -	EA5HEU	-11 / -	5	Partial capture
08-10 05:47	20m	- / -	EA5HEU	-21 / -	3	Partial capture
08-10 05:03	20m	- / -	RD3FY	-12 / -	2	✓ Closing fragment
08-10 04:02	20m	- / -7	UA3GDJ	-9 / -	3	✓ Closing fragment
08-09 20:07	20m	- / -	R7OV	-14 / -	2	Partial capture
08-02 19:17	40m	-7 / -	UB0SMX/P	- / -14	2	✓ Closing fragment
07-31 23:07	80m	+4 / -	UG4L	+4 / +8	5	✓ Full exchange observed
07-31 22:11	80m	-3 / +1	RU3DOK/P	-14 / +7	5	✓ Full exchange observed
07-31 22:09	80m	-3 / -10	IK4LZH	+4 / -3	3	Partial capture
07-31 22:06	80m	0 / -7	R6ZEJ	-7 / -1	5	✓ Full exchange observed
07-30 22:00	40m	-7 / -2	YM4KT	-7 / -4	5	✓ Full exchange observed
07-30 21:51	40m	- / +2	RC6O	-8 / -	2	Partial capture
07-30 21:49	40m	-4 / -	R2DYN	-12 / -15	3	✓ Closing observed
07-30 21:38	40m	-7 / +6	HA3GX	-12 / -24	8	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
202015 -18  918  R3PLN RA3MT +02
202030  +2 1469  RA3MT R3PLN R+03
202045 -10  919  R3PLN RA3MT +02
202100  +7 1375  RA3MT R3PLN R+03
202115  -2  919  R3PLN RA3MT +02
202130  +5  918  RA3MT R3PLN R+03
202145  -6  919  R3PLN RA3MT +02
202200  +6  918  RA3MT R3PLN R+03
202315 -14  860  R3PLN RA3MT -15
202330  +0 1927  RA3MT R3PLN R+03
202345 -23  859  R3PLN RA3MT RR73
202400  +0 1927  RA3MT R3PLN 73
202430  +4 1927  R2AZM R3PLN KO83 (x3)

20m

UTC    dB Audio  Message
133430 -20 2341  R3PLN IW1GB -13
134600  -3 2132  R3PLN EA5HEU JN00 (x3)
160200 -21 2144  R3PLN F5LMG IN88
180045 -19 2342  0O4LIB/R R3PLN -22 (x4)
103330 -13  859  R3PLN M9YLR IO83 (x5)
104300 -14 2063  EC5M R3PLN KO83

40m

UTC    dB Audio  Message
165215  +4 2379  R4LBD R3PLN 73
165245  +5 2379  R1WCK R3PLN KO83
165315  +3 2379  UA3IDQ R3PLN KO83
165345  -3 2379  R1WCK R3PLN R-18 (x2)
165445  -1 2379  UB8AHK R3PLN KO83 (x2)
165545  -2 2379  R1BRZ R3PLN KO83
165645  -5 2379  UA3IDQ R3PLN KO83 (x3)
165815  -2 2379  CQ R3PLN KO83
165845  -4 2379  RU3BF R3PLN -10 (x2)
165945  +3 2379  CQ R3PLN KO83

10m

UTC    dB Audio  Message
065430 -11 2521  R3PLN RC7C 73
073715 -20 1165  CQ R3PLN KO83 (x3)
075615 -17 1164  R4YM R3PLN KO83 (x2)
080245 -19 1164  CQ R3PLN KO83                         a1 (x5)
082245 -20 1165  OM8AOP R3PLN RR73

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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