RW3YS — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO52

Receiver-side FT8 activity involving RW3YS, decoded by SO8OO in southeastern Poland. 1,471 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 30 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-09-10.

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 1,471 FT8 messages attributed to RW3YS as the transmitting token by decoded message structure across 30 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (55%), followed by 80 m (38%) and 20 m (7%). Most decodes (63%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (74%); the estimated median was -1 dB.

Overview

1,471

Messages attributed

UTC dates decoded

151

Active 15-min windows

-1 dB

Estimated median S/N

Bands

160m · 6 80m · 558 40m · 811 20m · 96

First attributed message: 2026-06-09
Last attributed message: 2026-09-10 04:05 UTC

Observed FT8 message patterns

Attributed sample: 1,471 messages
Active dates: 30 UTC dates
Estimated median S/N: -1 dB
Estimated 10th-90th percentile: -14.9 to +9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 126, moderate (-15 to -9 dB) 263, strong (≥ -8 dB) 1,082.

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 RW3YS in decoded directed-looking exchanges:

PI4DX · Netherlands ×3 ON4ASV · Belgium ×2 SP6JIU · Poland ×2 R4RN · European Russia ×2 EU3LA · Belarus ×2 YO3OBB · Romania ×2 RN6MA · European Russia ×2 R6ZEJ · European Russia ×2 RT6Z · European Russia ×2 F5RMK · France ×2 YO3GNF · Romania ×2 YU4NMT · Serbia ×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 RW3YS

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: KO52 · 795 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 701 km (approx.)
Last such locator decoded: 2026-09-10 04:05 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	RW3YS S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-10 04:04	40m	-4 / -	HC5F	- / -	2	Partial capture
09-10 04:02	40m	+4 / -	R6LE	-5 / +5	2	Partial capture
09-09 20:09	40m	+5 / -	RN2F	- / 0	5	✓ Closing fragment
09-09 19:47	40m	+4 / -	EA7JYN	- / -15	2	✓ Closing fragment
09-09 17:58	40m	- / -	RZ5D	-7 / -	3	Partial capture
09-09 17:58	40m	+9 / -	RC6OX	+3 / -7	4	✓ Closing observed
09-09 00:36	80m	+10 / -3	DA6OOM	-9 / -14	4	✓ Full exchange observed
09-09 00:32	80m	0 / -	AP2HA	- / -22	4	✓ Closing fragment
09-09 00:30	80m	+7 / +2	OH6FSO	-12 / -15	5	✓ Full exchange observed
09-09 00:28	80m	+7 / -	UA2FFD	- / -	4	Partial capture
09-09 00:26	80m	+6 / -	UA9CQV	- / -13	2	Partial capture
09-09 00:24	80m	+6 / -2	DL1FLW	-3 / -14	6	✓ Full exchange observed
09-09 00:01	40m	- / -	F5OYA/P	-4 / -	22	Partial capture
09-08 23:55	40m	- / -9	R6ZEJ	-10 / -	3	✓ Closing fragment
09-08 23:55	40m	- / -	F5OYA/P	-16 / -	6	Partial capture
09-02 03:59	40m	- / -	F5OYA/P	-8 / -	2	Partial capture
09-02 03:43	40m	+6 / -8	PV8AJ	-11 / -9	8	✓ Full exchange observed
09-02 03:40	40m	- / +1	RC9WC	-8 / -	3	Partial capture
09-02 03:12	40m	- / -18	TA1SY	-9 / -	4	✓ Closing fragment
09-02 03:09	40m	- / -1	RA6OF	-7 / -	3	✓ Closing fragment
09-02 02:58	40m	- / -1	RC9WC	-8 / -	2	Partial capture
09-02 02:51	40m	- / -6	RC9WC	-8 / -	3	Partial capture
09-01 21:45	40m	+9 / -7	IK4IDY	-11 / -4	4	✓ Full exchange observed
09-01 21:37	40m	+9 / -	M9SDD	- / -8	2	✓ Closing fragment
09-01 21:33	40m	+6 / -	EA5JKT	- / -16	3	✓ Closing fragment
09-01 21:30	40m	+6 / +1	TA7I	-4 / -4	6	✓ Full exchange observed
09-01 21:27	40m	- / -	EA5JKT	-17 / -	6	Partial capture
09-01 21:26	40m	+10 / -	SQ9CXH	- / -3	2	✓ Closing fragment
09-01 21:24	40m	- / -16	TA2ED	-24 / -	2	Partial capture
09-01 21:21	40m	+8 / -10	RV3X	-17 / -5	5	✓ Full exchange observed
09-01 21:18	40m	+7 / -	VJ6X	- / -	2	Partial capture
09-01 21:07	40m	+8 / -	JA0RUG	- / -13	2	✓ Closing fragment
09-01 21:06	40m	+8 / -	R5KH	- / -13	2	Partial capture
09-01 20:45	40m	- / -	R5KH	-1 / -	2	Partial capture
09-01 20:45	40m	+10 / +4	RK6OV	-6 / -6	6	✓ Full exchange observed
09-01 20:44	40m	- / -15	TA2ED	-18 / -	2	Partial capture
09-01 20:40	40m	+7 / -	DS5USH	- / -	3	Partial capture
09-01 20:38	40m	+4 / -	VJ6X	- / -	3	Partial capture
09-01 20:35	40m	+7 / -1	R2SN	-3 / -1	7	✓ Full exchange observed
09-01 20:34	40m	+7 / -	R4CHN	- / -9	3	✓ Closing fragment
09-01 20:08	40m	- / -	RW6HPI	-4 / -	3	Partial capture
09-01 20:01	40m	+6 / -11	R3YCJ	-8 / -13	7	✓ Full exchange observed
09-01 19:59	40m	+2 / -	UB1AKX	- / -14	2	✓ Closing fragment
09-01 19:57	40m	+4 / -	BI3UPU	- / -17	2	✓ Closing fragment
09-01 19:53	40m	+8 / -	EI8HY	- / -	4	Partial capture
09-01 19:53	40m	- / -	UA9SY	-3 / -	4	Partial capture
09-01 19:52	40m	+6 / 0	DL6EL	-1 / -7	5	✓ Full exchange observed
09-01 19:49	40m	+11 / -11	RT2H	+2 / -	4	✓ Closing observed
09-01 19:49	40m	- / -	DL6EL	+6 / -	2	Partial capture
09-01 19:48	40m	+9 / -	RW1AI	-6 / -2	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
194645  -2 2075  CQ RW3YS KO52 (x2)
194745  +6 2075  EA7JYN RW3YS -15 (x2)
200930  +5 2075  RN2F RW3YS KO52 (x5)
040230  +5 1123  CQ RW3YS KO52
040245  -5 2037  RW3YS R6LE LN07
040300  -2 1124  HK3YL RW3YS KO52
040330  +4 1124  R6LE RW3YS +05
040430  -5 1124  HC5F RW3YS KO52 (x2)

80m

UTC    dB Audio  Message
003030  +9 2040  OH6FSO RW3YS R-15
003045  -9 2608  RW3YS OH6FSO RR73
003100  +8 2040  OH6FSO RW3YS 73
003200  -1 2040  CQ RW3YS KO52
003230  -1 2040  AP2HA RW3YS KO52 (x4)
003430  +1 2040  UA2FFD RW3YS KO52
003530  +9 2040  UK8FCM RW3YS KO52
003630 +11 2040  CQ RW3YS KO52
003645  -8 1229  RW3YS DA6OOM JO53
003700 +10 2040  DA6OOM RW3YS -14
003715 -10 1229  RW3YS DA6OOM R-03
003730 +11 2040  DA6OOM RW3YS RR73

20m

UTC    dB Audio  Message
134730  -7  726  RW3YS DL6UM R+19
134730  +0 1376  RW3YS F5IXN JN23
134800  +3  726  RW3YS DL6UM 73
134800  -6 1376  RW3YS F5IXN JN23 (x2)
134900 -20 1376  RW3YS PE1ARS JO32
145130  -6  914  RW3YS G8IXM JO02
145200  -2 1002  RW3YS EI4JFB IO63
145200  -8  914  RW3YS G8IXM JO02
145230  -2 1377  RW3YS G0ANH IO94
145230  -3 1002  RW3YS EI4JFB IO63
145300  -5 1377  RW3YS G0ANH IO94
145330  -2  914  RW3YS G8IXM JO02 (x3)

10m

UTC    dB Audio  Message
082100 -12  744  RW3YS RU6L LN07 (x3)
200945  -3 2718  RW3YS PC9K -14 (x3)
114100 -18 1403  RW3YS TA1SW +14 (x2)
091215 -11 2566  RW3YS S56P JN76 (x4)
091445 -21 1886  RW3YS S57NA R+15
091445 -10 2566  RW3YS S56P JN76
091515 -19 1886  RW3YS S57NA 73

160m

UTC    dB Audio  Message
195100 -17 1344  DO5HOK RW3YS KO52 (x2)
200045  +7 2680  RW3YS RT6Z -18 (x2)
200130 -20 1345  RT6Z RW3YS 73
200200 -19 1345  CQ RW3YS KO52 (x3)

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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