RW5CW — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO85

Receiver-side FT8 activity involving RW5CW, decoded by SO8OO in southeastern Poland. 104 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 15 UTC dates in the available aggregate history. Observed between 2026-07-15 and 2026-09-18.

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 104 FT8 messages attributed to RW5CW as the transmitting token by decoded message structure across 15 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (48%), followed by 40 m (48%) and 20 m (4%). Several six-hour UTC windows tied for the largest share (90%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

104

Messages attributed

UTC dates decoded

Active 15-min windows

-14 dB

Estimated median S/N

Bands

80m · 50 40m · 50 20m · 4

First attributed message: 2026-07-15
Last attributed message: 2026-09-18 21:44 UTC

Observed FT8 message patterns

Attributed sample: 104 messages
Active dates: 15 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -22 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 39, moderate (-15 to -9 dB) 31, strong (≥ -8 dB) 34.

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 RW5CW in decoded directed-looking exchanges:

JY5CG · Jordan CN8NS · Morocco DL7UKM · Fed. Rep. of Germany EB7HQE · Spain F4DVP · France I5HLK · Italy I8OHQ · Italy JY5IB · Jordan TA2EE · Asiatic Turkey UD6X · European Russia 9A5E · Croatia EW2ZC · Belarus

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 RW5CW

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: KO85 · 65 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,193 km (approx.)
Last such locator decoded: 2026-09-18 21:44 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	RW5CW S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-18 21:39	80m	- / -	RK7D	+4 / -	2	Partial capture
09-18 21:38	80m	-22 / -17	EW2ZC	+9 / -16	6	✓ Full exchange observed
09-18 21:31	80m	- / -7	RK9UE	+2 / -	2	✓ Closing fragment
09-14 22:33	40m	-6 / -	II0IHMG	- / -14	2	Partial capture
09-14 22:29	40m	-6 / -	EB7HQE	-18 / -22	4	✓ Closing observed
09-14 22:22	40m	0 / -	II0IHMG	- / -13	2	Partial capture
09-14 22:22	40m	- / -9	II8IHBC	-8 / -	2	Partial capture
09-14 22:18	40m	-6 / -14	I5HLK	0 / -11	5	✓ Full exchange observed
09-14 22:16	40m	0 / -	II0IHMG	- / -	2	Partial capture
09-14 22:12	40m	+3 / -13	JY5IB	-6 / -16	5	✓ Full exchange observed
09-14 22:11	40m	-8 / -	II0IHMG	- / -	2	Partial capture
09-14 22:09	40m	- / -16	I8OHQ	+3 / -	2	✓ Closing fragment
09-14 22:07	40m	-9 / -	TA2EE	- / -21	2	✓ Closing fragment
09-14 22:05	40m	-8 / -	DL7UKM	- / -11	2	✓ Closing fragment
09-14 21:26	80m	-20 / -16	G4FHL	+4 / -	7	Partial capture
09-14 21:22	80m	- / -14	RA3TVW	-4 / -	2	✓ Closing fragment
09-14 21:21	80m	- / -	R6ZEJ	+4 / -	2	Partial capture
09-14 21:18	80m	- / -11	R4HLO	-9 / -	5	✓ Closing fragment
09-14 21:18	80m	- / -	YO6LM	+8 / -	2	Partial capture
09-13 21:55	80m	-8 / -6	R4HHN	-9 / -10	5	✓ Full exchange observed
09-13 21:52	80m	-14 / -6	RW3YS	+3 / -9	3	Partial capture
09-12 22:20	40m	-12 / -	UC6W	- / -	2	Partial capture
09-12 22:18	40m	-13 / -14	F4DVP	-9 / -24	3	✓ Full exchange observed
09-12 22:11	40m	-5 / -	EA1Y	- / -21	3	Partial capture
09-12 21:25	40m	-12 / -	UD6X	- / -7	3	✓ Closing fragment
09-12 21:24	80m	- / -	R4HLO	-22 / -	2	Partial capture
09-12 21:19	80m	-21 / -	R4FDD	- / -14	2	✓ Closing fragment
09-12 21:13	80m	- / -	YT5DL	+10 / -	3	Partial capture
09-11 21:31	80m	- / -6	RA3TVW	-4 / -	2	Partial capture
09-11 21:30	80m	- / -15	9A5E	+6 / -	2	✓ Closing fragment
09-11 21:27	80m	- / -9	RA3TVW	-6 / -	2	Partial capture
09-11 21:26	80m	-15 / -1	RY4D	-18 / -21	3	✓ Full exchange observed
09-09 20:54	80m	-19 / -15	OZ7CL	-4 / -22	5	✓ Full exchange observed
09-09 20:25	80m	- / -11	RL6MT	-12 / -	2	✓ Closing fragment
09-08 05:13	40m	-14 / -	OA4ENG	- / -	2	Partial capture
09-08 05:10	40m	-17 / -	PV8AJ	- / -	4	Partial capture
09-06 20:21	80m	-18 / -8	SN8N	+16 / -	3	✓ Closing observed
09-06 20:20	80m	- / -10	OZ7CL	-7 / -	6	Partial capture
09-06 20:16	80m	- / -16	LZ1EV	+13 / -	2	✓ Closing fragment
09-03 18:16	80m	- / -	RZ6CO	+4 / -	2	Partial capture
09-03 18:08	80m	- / -16	RC9WC	-1 / -	2	✓ Closing fragment
08-29 18:55	80m	- / -17	YT7DX	+3 / -	5	Partial capture
08-29 18:53	80m	- / -16	R2DRE	-4 / -	3	Partial capture
08-29 18:49	80m	- / -15	YT7DX	+5 / -	3	Partial capture
08-29 18:47	80m	- / -9	R3KJF	-3 / -	3	✓ Closing fragment
08-29 18:39	80m	- / -11	UA4FKT	-1 / -	4	✓ Closing fragment
08-29 18:37	80m	- / -	RA3TKS	-7 / -	2	✓ Closing fragment
08-29 18:36	80m	- / -	OK1UOZ	-3 / -	7	Partial capture
08-29 18:35	80m	- / -	9A3K	-2 / -	2	Partial capture
08-28 22:05	80m	-19 / -	ER5DX	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
212830  +7 2274  RW5CW G4FHL -16 (x4)
213115  +2  738  RW5CW RK9UE -07 (x2)
213815 -22 2016  EW2ZC RW5CW KO85
213900  +5 2914  RW5CW RK7D KN95 (x2)
213930  +9 2375  RW5CW EW2ZC -17 (x3)
214045 -21 2016  EW2ZC RW5CW R-16
214100  +6 2375  RW5CW EW2ZC RR73
214430 -19 1261  CQ RW5CW KO85

40m

UTC    dB Audio  Message
221900  -8 1473  I5HLK RW5CW R-11
221915  -1 1662  RW5CW I5HLK RR73
221930  -8 1473  I5HLK RW5CW 73
222200  -7 1279  RW5CW II8IHBC -09
222215  +3 1473  II0IHMG RW5CW KO85
222230 -10 1279  RW5CW II8IHBC -08
222245  -2 1472  II0IHMG RW5CW R-13
222300 -11 1279  RW5CW RR73; M0LUX <...> -10
222915  -6 1473  EB7HQE RW5CW KO85 (x2)
223000 -18 2000  RW5CW EB7HQE RR73
223015  -4 1473  EB7HQE RW5CW 73
223200  -9 1472  VO1HH RW5CW KO85
223315 -10 1473  II0IHMG RW5CW KO85 (x2)

20m

UTC    dB Audio  Message
181545 -24 1720  JY5CG RW5CW R-07
181600 -13 1565  RW5CW JY5CG RR73
043715  -3 1731  XQ1KK RW5CW KO85 (x2)
043830  -2 1731  YV6BXN RW5CW KO85
043930  -5 1008  RW5CW XQ1KK -18 (x5)

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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee