R1TAX — 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: KO58

Receiver-side FT8 activity involving R1TAX, decoded by SO8OO in southeastern Poland. 2,917 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 79 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-10-19.

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 2,917 FT8 messages attributed to R1TAX as the transmitting token by decoded message structure across 79 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (69%), followed by 40 m (21%) and 20 m (6%). Most decodes (87%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (62%); the estimated median was -6 dB.

Overview

2,917

Messages attributed

UTC dates decoded

337

Active 15-min windows

-6 dB

Estimated median S/N

Bands

160m · 115 80m · 2,013 40m · 610 20m · 179

First attributed message: 2026-06-11
Last attributed message: 2026-10-19 07:00 UTC

Observed FT8 message patterns

Attributed sample: 2,917 messages
Active dates: 79 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -15.9 to +3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 299, moderate (-15 to -9 dB) 810, strong (≥ -8 dB) 1,808.

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 R1TAX in decoded directed-looking exchanges:

R2SN · European Russia ×3 R5AV · European Russia ×3 RN3TT · European Russia ×3 R2XM · European Russia ×3 EU1EU · Belarus ×3 R2DRE · European Russia ×2 R5BS · European Russia ×2 R80SAA · Asiatic Russia ×2 RA4LFN · European Russia ×2 RO2E/P · European Russia ×2 UA1TAN · European Russia ×2 UA3AKO · European Russia ×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 R1TAX

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: KO58 · 1,316 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,122 km (approx.)
Last such locator decoded: 2026-10-19 06:49 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	R1TAX S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-19 06:52	40m	- / -	G8TJQ	-2 / -	2	Partial capture
10-19 06:48	40m	-9 / -5	DG9FFM	-22 / -	2	✓ Closing observed
10-19 06:46	40m	-14 / -9	UA2FFD	-16 / 0	4	✓ Full exchange observed
10-19 06:41	40m	-10 / -10	G0OYQ	-11 / -	3	✓ Closing observed
10-19 06:39	40m	- / -17	F4HMP	-15 / -	2	✓ Closing fragment
10-19 06:34	40m	-11 / -10	M9KTC	-6 / -	2	✓ Closing observed
10-18 20:03	160m	- / -4	OH6B	-16 / -	2	✓ Closing fragment
10-18 19:46	160m	- / -8	R80SAA	+10 / -	2	✓ Closing fragment
10-18 19:42	80m	-5 / -13	RK9S	-17 / -9	5	✓ Full exchange observed
10-18 19:39	80m	-5 / -15	YU7BW	+16 / +4	5	✓ Full exchange observed
10-18 19:37	80m	-6 / -9	DF5AH	-8 / -10	5	✓ Full exchange observed
10-18 19:34	80m	-4 / -	VK3TZ	- / -14	3	Partial capture
10-18 19:31	80m	-2 / -	R2ZAA	- / -12	4	Partial capture
10-18 19:24	80m	-4 / -	RA9SBN	-3 / -10	4	✓ Closing observed
10-18 19:23	80m	0 / -6	OE3KJO	+11 / -7	3	✓ Full exchange observed
10-18 19:22	80m	+2 / -12	R4RJ	-12 / -9	4	✓ Full exchange observed
10-18 19:18	80m	-2 / -14	YU1AT	-2 / -	3	✓ Closing observed
10-18 19:18	80m	-3 / -16	R2DAR	+1 / -	3	✓ Closing observed
10-18 19:15	80m	-7 / -11	RA9SBN	-4 / -12	3	Partial capture
10-18 19:13	80m	-4 / -	LY1DY	- / -5	2	Partial capture
10-18 19:11	80m	-5 / -	R1TBG	- / -9	2	Partial capture
10-18 19:10	80m	-4 / -	R2DAR	- / -6	2	Partial capture
10-18 19:02	80m	+2 / -16	DA6GK	-9 / -16	2	Partial capture
10-18 18:55	80m	-6 / -	EU1EU	-3 / -15	5	✓ Full exchange observed
10-18 18:53	80m	-5 / -6	EW4DX	-6 / -8	4	✓ Full exchange observed
10-18 18:50	80m	-10 / -	YO6BLU	- / -12	2	Partial capture
10-18 18:49	80m	-6 / -	UR5BIO	- / 0	2	Partial capture
10-18 18:46	80m	-6 / -4	R3IAD	-7 / -6	4	✓ Full exchange observed
10-18 18:42	80m	-8 / -23	R8PG	-7 / -4	6	✓ Full exchange observed
10-18 18:42	80m	-8 / -	R2BQM	- / -16	4	Partial capture
10-18 18:37	80m	-2 / -7	UB3YGA	+9 / 0	5	✓ Full exchange observed
10-17 17:54	80m	-6 / -	EU1AFX	- / -6	2	✓ Closing fragment
10-17 17:38	160m	-19 / -	R8CEG	- / -11	2	✓ Closing fragment
10-16 20:05	160m	- / -14	OM0RX	+2 / -	4	Partial capture
10-16 19:53	80m	- / -5	R2LAD	+3 / -	2	✓ Closing fragment
10-16 19:49	80m	-7 / -	G1SUM	- / -13	2	Partial capture
10-16 19:46	80m	-4 / -7	SP3HUU	+11 / -2	6	✓ Full exchange observed
10-16 19:43	80m	+2 / -10	RK6OQ	-12 / -10	3	✓ Full exchange observed
10-16 19:38	80m	-3 / -9	DH6BH	0 / -9	6	✓ Full exchange observed
10-16 19:36	80m	+6 / -	F5MXH	- / -12	2	✓ Closing fragment
10-16 19:34	80m	-2 / -	RA4ACX	- / -13	2	✓ Closing fragment
10-16 19:33	80m	-4 / -5	HA1RB	+6 / -	3	✓ Closing observed
10-16 19:31	80m	-1 / -	R6ZAJ	- / -6	3	✓ Closing fragment
10-16 19:27	80m	-2 / -	R4HLO	- / -21	2	✓ Closing fragment
10-16 19:18	80m	+4 / -13	R4HHN	-9 / -12	4	✓ Full exchange observed
10-16 19:12	40m	-12 / -	7Z1IS	- / -	2	Partial capture
10-16 12:42	40m	-16 / -	R8CKV	- / -3	4	✓ Closing fragment
10-16 12:32	40m	-15 / -	UB1CBC	- / -	2	Partial capture
10-16 12:13	40m	-16 / -	BI6LDD	- / -	2	Partial capture
10-16 12:10	40m	-18 / -18	DK1HSI	-12 / -11	3	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
064115 -12  741  R1TAX G0OYQ -10 (x2)
064500 -11  694  R2OM R1TAX R-09
064615 -13 1689  R1TAX UA2FFD -09
064630 -14  693  UA2FFD R1TAX R+00
064645 -15 1690  R1TAX UA2FFD RRR (x2)
064815 -22 2197  R1TAX DG9FFM -05
064900  -9  690  DG9FFM R1TAX 73
064930  -9  690  CQ R1TAX KO58
065215  -2  690  R1TAX G8TJQ IO90 (x2)
065345 -12  688  R1TAX F1IQH JN27
065745 -14 2268  R1TAX RW1AI -10
070000 -14  683  OH6GEP R1TAX 73

160m

UTC    dB Audio  Message
172245 -19 2107  CQ R1TAX KO58 (x2)
173130 -20 2106  UA9AEJ R1TAX RR73
173830 -20 2219  R8CEG R1TAX -11 (x2)
174430 -20 2218  UB8A R1TAX 73
194615 +10  602  R1TAX R80SAA R-08 (x2)
195230 -23 1673  OM2WQ R1TAX -01
195315 -22 1673  CQ R1TAX KO58 (x2)
200330 -19 1673  R1TAX OH6B R-04 (x2)
201215 -24 1673  CQ R1TAX KO58
201315 -21 1673  JF8QNF R1TAX -07

80m

UTC    dB Audio  Message
193745  -7 2449  R1TAX DF5AH JO41
193800  -5 2353  DF5AH R1TAX -10
193815  -8 2449  R1TAX DF5AH R-09
193830  -7 2353  DF5AH R1TAX RR73
193845 -10 2450  R1TAX DF5AH 73
193900  -9 2353  YU7BW R1TAX KO58
193915 +15 1299  R1TAX YU7BW -15
193930  -4 2353  YU7BW R1TAX R+04
193945 +16 1299  R1TAX YU7BW RR73
194000  -3 2353  YU7BW R1TAX 73
194200  -4 2353  RK9S R1TAX KO58
194215 -17  692  R1TAX RK9S -13
194230  -3 2353  RK9S R1TAX R-09
194245 -17  692  R1TAX RK9S RR73
194300  -7 2352  RK9S R1TAX 73

20m

UTC    dB Audio  Message
121500  +7 2724  R1TAX PD9FLX JO22 (x3)
122030  -4 1757  R1TAX G7EKS -11
135800  -8 1618  R1TAX RM3TO +03 (x2)
140000 -13 1763  R1TAX DK0PB RR73
140715 +10 1124  R1TAX RU3T -14 (x2)
181330 -18 1075  R1TAX BH4ECL PM01
181815 -12 1400  BG0FQU R1TAX KO58 (x2)
181930  +3 1741  R1TAX RA6LTD -16
181945 -11 1399  BG0FQU R1TAX KO58
182000  +3 1898  R1TAX RA6LTD -16

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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