RW3SB — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: LO04

Receiver-side FT8 activity involving RW3SB, decoded by SO8OO in southeastern Poland. 755 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 62 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-04.

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 755 FT8 messages attributed to RW3SB as the transmitting token by decoded message structure across 62 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (64%), followed by 20 m (28%) and 10 m (8%). The busiest six-hour window was 22:00-04:00 UTC, containing 41% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

755

Messages attributed

UTC dates decoded

198

Active 15-min windows

-8 dB

Estimated median S/N

Bands

80m · 3 40m · 482 20m · 213 10m · 57

First attributed message: 2026-06-07
Last attributed message: 2026-10-04 04:53 UTC

Observed FT8 message patterns

Attributed sample: 755 messages
Active dates: 62 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -17 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 122, moderate (-15 to -9 dB) 241, strong (≥ -8 dB) 392.

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 RW3SB in decoded directed-looking exchanges:

RA6ATZ · European Russia ×2 R9YCB · Asiatic Russia ×2 RM8L · Asiatic Russia ×2 RX3ASQ · European Russia ×2 UA3ZMQ · European Russia ×2 A41KB · Oman ×2 OZ2NYB/P · Denmark ×2 RK4HS · European Russia ×2 RW0AE · Asiatic Russia ×2 IZ2FOS · Italy PA0LDE · Netherlands R6DJR · European Russia

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 RW3SB

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: LO04 · 115 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,398 km (approx.)
Last such locator decoded: 2026-10-03 15:02 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	RW3SB S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-04 04:53	40m	-19 / -	UA9QFF	- / -8	2	✓ Closing fragment
10-03 15:02	40m	-8 / +5	EU1AFX	-3 / 0	5	✓ Full exchange observed
10-03 15:01	40m	-6 / -	R5GG	- / -20	2	✓ Closing fragment
10-03 14:57	40m	-14 / -	UC8S	- / -	2	✓ Closing fragment
10-03 14:41	40m	-7 / +5	R6ZL	-4 / -2	4	✓ Full exchange observed
10-03 14:20	40m	- / -17	OH7UE	-14 / -	2	✓ Closing fragment
10-03 14:16	40m	- / -	UB3FBD	-8 / -	2	Partial capture
10-02 05:05	40m	-19 / -	R3MDA	- / -1	3	✓ Closing fragment
09-30 03:22	40m	-8 / -	HK3AQJ	- / -16	4	Partial capture
09-30 03:16	40m	-10 / -21	W6NWS	+4 / -4	7	✓ Full exchange observed
09-28 22:00	40m	-3 / -3	R6FGF	-8 / -13	4	✓ Full exchange observed
09-28 21:58	40m	-15 / -13	EC3A	-6 / -9	3	✓ Full exchange observed
09-28 21:53	40m	- / +4	OV9R	-4 / -	2	✓ Closing fragment
09-28 21:51	40m	-16 / -	OM7AMA	- / 0	2	✓ Closing fragment
09-28 14:54	40m	-15 / -18	R6ML	-12 / -8	3	✓ Full exchange observed
09-28 14:52	40m	-9 / -	UB4RGZ	- / -	2	Partial capture
09-26 04:31	40m	-2 / -	RU3KO	- / -1	2	✓ Closing fragment
09-26 04:20	40m	-2 / -	RD3FY	+10 / -4	3	✓ Closing observed
09-25 03:22	40m	+4 / -	HI3K	- / -	2	Partial capture
09-25 03:16	40m	-16 / -14	SV3AUW	-20 / -	3	✓ Closing observed
09-25 03:14	40m	-11 / -5	RM8W	-12 / -	3	✓ Closing observed
09-25 03:14	40m	-7 / -	HI3K	- / -7	2	Partial capture
09-22 22:54	40m	-9 / -	KA1VDZ	- / -15	2	Partial capture
09-22 22:47	40m	-9 / -	E21EIC	- / -21	3	✓ Closing fragment
09-22 22:45	40m	0 / -	KA1VDZ	- / -	2	Partial capture
09-22 22:43	40m	-13 / -	E21EIC	- / -	2	Partial capture
09-22 22:33	40m	+3 / -13	IU8RFW	0 / -14	7	✓ Full exchange observed
09-22 22:32	40m	+2 / -2	ZA5G	-7 / -6	3	✓ Full exchange observed
09-22 22:18	40m	+2 / -	RX9ABI	- / +1	2	Partial capture
09-22 22:16	40m	-10 / -	HF1Z	- / -11	2	✓ Closing fragment
09-22 13:00	40m	- / -7	RC6OX	-6 / -	2	Partial capture
09-22 12:38	40m	- / -2	RA3SO	-19 / -	3	✓ Closing fragment
09-22 12:34	40m	- / +2	SN4K	+4 / -	3	✓ Closing fragment
09-22 12:33	40m	- / -13	OZ9FF	-6 / -	2	✓ Closing fragment
09-22 00:53	40m	-18 / -	HK4QXX	- / -15	2	Partial capture
09-22 00:48	40m	-8 / -	VO1AW	- / -9	2	Partial capture
09-21 23:09	40m	-2 / -	RI1FJZ	- / -22	4	✓ Closing fragment
09-21 23:04	40m	-5 / -	RI1FJZ	- / -21	3	Partial capture
09-21 23:01	40m	+2 / -	VE3CM	- / -20	2	Partial capture
09-21 14:42	40m	-9 / -	RK3DJW	- / +3	3	✓ Closing fragment
09-21 14:41	40m	-11 / +3	UN6LN	-10 / -	3	✓ Closing observed
09-20 19:28	40m	-3 / -5	II4IANT	+6 / -13	2	Partial capture
09-20 19:24	40m	-12 / -22	F8MRQ	-2 / -11	5	✓ Full exchange observed
09-20 19:24	40m	-1 / +10	UB7K	+2 / -	3	✓ Closing observed
09-20 14:17	40m	-10 / -	UC9V	- / -10	5	✓ Closing fragment
09-20 13:58	40m	-14 / -	R9WJ	-17 / -1	2	✓ Closing observed
09-20 05:26	40m	- / -3	OH1TSM	0 / -	3	✓ Closing fragment
09-20 05:23	40m	-16 / -8	R3LCG	-2 / -	3	✓ Closing observed
09-20 05:23	40m	- / -	OM3PC	+13 / -	3	Partial capture
09-19 02:36	80m	- / -	DO9BAU	-5 / -	13	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
145730 -15 1147  UC8S RW3SB LO04 (x2)
150000  -6 2704  CQ RW3SB LO04 (x2)
150100  -7 2705  R5GG RW3SB -20 (x2)
150200  -6 2704  CQ RW3SB LO04
150215  -3 2705  RW3SB ON4AZM JO11
150215  -5 1282  RW3SB EU1AFX KO43
150230  -8 2705  EU1AFX RW3SB +00
150245  -2 1283  RW3SB EU1AFX R+05
150300  -8 2705  EU1AFX RW3SB RR73
150315  -3 1282  RW3SB EU1AFX 73
045315 -21 1352  UA9QFF RW3SB -08 (x2)

80m

UTC    dB Audio  Message
230100 +13 2377  RW3SB YO4NF -17 (x2)
023630  -5 2202  RW3SB DO9BAU JO62 (x13)

20m

UTC    dB Audio  Message
112200  -5  982  RW3SB R8ACF 73
112330  +7 2532  RW9ULK RW3SB +00 (x2)
043500 -16  964  ZL2BH RW3SB -10
043915  -7 1686  RW3SB RM8L R+00 (x3)
044415 -24 1701  R4PHH RW3SB -10
044430  -6 1700  RW3SB R4PHH R-08
044445 -20 1700  R4PHH RW3SB RR73
044500  -7 1701  RW3SB R4PHH 73
044800 -14 2268  UA9ZCC RW3SB LO04 (x3)
044915 -16 2268  RW3SB UA9ZCC RR73

10m

UTC    dB Audio  Message
104700 -15 2110  RW3SB R6FMK 73
102045  +7 2365  RW3SB IZ2FOS 73
092700 -22 2121  RW3SB HA1UA R-06
093215  +0 2645  RW3SB PA0LDE JO22 (x3)
094100 -16  991  RW3SB RA6ATZ 73
094915  +9 2937  RW3SB RT6Z R-06 (x2)
080200 -11 2254  RW3SB SV2JAO R+00 (x2)
112600 -22 1648  RW3SB R6DJR 73
085630 -16 2318  RW3SB R7RAG R+02 (x2)
082930 -19 2375  RW3SB R6DWD R-07

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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