RT3S — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO94

Receiver-side FT8 activity involving RT3S, decoded by SO8OO in southeastern Poland. 183 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 13 UTC dates in the available aggregate history. Observed between 2026-07-23 and 2026-10-18.

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 183 FT8 messages attributed to RT3S as the transmitting token by decoded message structure across 13 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (63%), followed by 40 m (32%) and 20 m (5%). The busiest six-hour window was 17:00-23:00 UTC, containing 48% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

183

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

80m · 115 40m · 58 20m · 10

First attributed message: 2026-07-23
Last attributed message: 2026-10-18 23:34 UTC

Observed FT8 message patterns

Attributed sample: 183 messages
Active dates: 13 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -18 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 29, moderate (-15 to -9 dB) 72, strong (≥ -8 dB) 82.

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 RT3S in decoded directed-looking exchanges:

CT3MD · Madeira Islands EA5HEU · Spain RG6S · European Russia WA3JAT · United States 9V1YC · Singapore DG9SEH · Fed. Rep. of Germany DL1CC · Fed. Rep. of Germany EB3JT · Spain K1SM · United States M8PLA · England PD0LBY · Netherlands R3SN · 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 RT3S

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: KO94 · 94 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,273 km (approx.)
Last such locator decoded: 2026-10-18 23:30 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	RT3S S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-18 23:33	40m	-2 / -11	M8PLA	-14 / -17	4	✓ Full exchange observed
10-18 23:33	40m	0 / +2	RN6HK	-2 / +3	6	✓ Full exchange observed
10-18 23:32	40m	-6 / -	RA0AF	- / -4	2	✓ Closing fragment
10-18 23:16	40m	-15 / -	HS7EI	- / -	3	Partial capture
10-18 23:13	40m	-1 / -	9V1YC	- / -9	4	✓ Closing fragment
10-18 16:01	80m	-10 / -	R0AH	- / -13	3	✓ Closing fragment
10-18 16:00	80m	-2 / 0	UB4FGK	-16 / -	4	✓ Closing observed
10-14 20:33	80m	- / -	DO7MCL	+11 / -	3	Partial capture
10-14 20:29	80m	-5 / -19	JJ3JHP	-11 / -10	5	✓ Full exchange observed
10-06 21:13	40m	- / -8	RN2F	-16 / -	2	✓ Closing fragment
10-05 22:35	80m	-8 / -	BI8FRF	- / -18	7	✓ Closing fragment
10-05 22:25	80m	-1 / -	CT3IQ	- / -	4	Partial capture
10-05 22:22	80m	-1 / -16	Z61DX	-2 / -2	5	✓ Full exchange observed
10-05 22:18	80m	-8 / -	TT1GD	- / -	4	Partial capture
10-05 22:14	80m	-6 / -	TT1GD	- / -	2	Partial capture
10-05 22:12	80m	- / -7	SP6FME	+11 / -	3	✓ Closing fragment
10-05 22:09	80m	-5 / -	TJ1GD	- / -22	5	✓ Closing fragment
10-05 22:06	80m	-6 / -16	TT1GD	-23 / -	6	Partial capture
10-05 18:59	80m	0 / -	RA3RPW	-24 / -11	3	✓ Closing observed
10-05 18:57	80m	-1 / -2	EU3LA	-16 / -14	5	✓ Full exchange observed
10-05 17:39	80m	-3 / -2	R1TAX	-10 / -8	5	✓ Full exchange observed
09-30 02:26	80m	-4 / -	DL9KM	+4 / -11	7	Partial capture
09-30 02:25	80m	+10 / -	R9WCK	- / -8	2	✓ Closing fragment
09-30 02:24	80m	+4 / -	UA9LT	- / -16	2	✓ Closing fragment
09-29 15:44	80m	-5 / -	R1BQR	- / -	2	Partial capture
09-29 15:25	80m	-15 / -	R0SCF	- / -	2	Partial capture
09-29 15:11	80m	-15 / -	JR4PWV	- / -	3	Partial capture
09-27 18:08	80m	- / +7	R7CD	-1 / -	3	✓ Closing fragment
09-27 18:06	80m	+1 / +1	R3LAF	+1 / -	3	✓ Closing observed
09-27 18:05	80m	-5 / -	UC1Q	- / -1	3	✓ Closing fragment
09-27 17:55	80m	-12 / -	R6LKG	- / -10	2	✓ Closing fragment
09-27 17:53	80m	- / 0	R5KH	-8 / -	3	✓ Closing fragment
09-27 17:47	80m	-5 / -17	R6KY	-2 / -	5	✓ Closing observed
09-27 17:45	80m	-7 / -11	UB1WAE	-10 / -11	5	✓ Full exchange observed
09-27 17:45	80m	-6 / +4	RK6MC	+1 / +2	8	✓ Full exchange observed
09-27 16:59	80m	-11 / -3	RA2FU	+2 / -8	6	✓ Full exchange observed
09-27 15:43	40m	- / -16	DG9SEH	-15 / -	9	✓ Closing fragment
09-27 15:42	40m	-14 / -	UB4HVA	-18 / +2	2	✓ Closing observed
09-27 15:41	40m	-12 / -	R4WQ	- / -5	2	✓ Closing fragment
09-27 15:40	40m	-10 / -	RL2F	- / -9	2	✓ Closing fragment
09-27 15:27	80m	-19 / -	RZ0SW	- / -11	3	✓ Closing fragment
09-27 15:20	80m	-15 / -	EY8BL	- / -12	8	✓ Closing fragment
09-27 15:02	80m	-20 / -	EY8BL	- / -	2	Partial capture
09-27 14:52	80m	-18 / -	R0ADK	- / -	2	Partial capture
09-27 14:49	80m	-18 / -	R0ADK	- / -	2	Partial capture
09-27 14:46	80m	-18 / -	EY8BL	- / -	2	Partial capture
09-27 14:33	40m	- / -	DG9SEH	-17 / -	5	Partial capture
09-26 02:32	80m	-15 / -	9H4JX	- / -20	4	Partial capture
09-25 03:15	80m	-9 / -17	VP2MAA	-11 / -	6	Partial capture
09-24 15:47	80m	-8 / -	R3PJ	0 / 0	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
231700 -16 1851  HS7EI RT3S KO94 (x2)
233015  -9 2477  AD8FD RT3S KO94
233215  -8 1190  RA0AF RT3S R-04 (x2)
233300  +1  313  RT3S RN6HK LN14
233315  -3  787  M8PLA RT3S -17
233330  -2  313  RT3S RN6HK LN14
233330 -14  786  RT3S M8PLA R-11
233345  -1  786  M8PLA RT3S RR73
233400 -13  787  RT3S M8PLA 73
233415  -4  312  RN6HK RT3S +03
233430  -3  313  RT3S RN6HK R+02
233445  +5  313  RN6HK RT3S RR73
233500  -2  313  RT3S RN6HK 73

80m

UTC    dB Audio  Message
202930  -5 2925  JJ3JHP RT3S KO94
202945 -11 2925  RT3S JJ3JHP -19
203000  -6 2925  JJ3JHP RT3S R-10
203015 -11 2925  RT3S JJ3JHP RR73
203030  -4 2925  JJ3JHP RT3S 73
203345 +10 2925  RT3S DO7MCL JO52 (x3)
160015 -13 1211  RT3S UB4FGK LO33 (x2)
160100  -2 1212  UB4FGK RT3S RR73
160115 -20 1212  RT3S UB4FGK 73
160130 -10 1795  R0AH RT3S KO94 (x3)

60m

UTC    dB Audio  Message
221300 -15 1884  RT3S DL3HN JN49

20m

UTC    dB Audio  Message
045930 -21 1270  RT3S RC6BB R-26
041530 -15 2085  HI8ERQ RT3S KO94
042230 -24 1871  CT3MD RT3S RR73
042845 -14 2138  WA3JAT RT3S 73
042915  -9  906  TI5RR RT3S KO94
043130 -14 1503  RT3S EA5HEU JN00
043300 -11 1250  RT3S RG6S KN77
043330 -24 1503  RT3S EA5HEU 73
043430  -9 1251  RT3S RG6S R+02
043445 -22 1251  RG6S RT3S RR73
043915 -13  783  WW9WTF RT3S KO94

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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