R6SJ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia

Receiver-side FT8 activity involving R6SJ, decoded by SO8OO in southeastern Poland. 108 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-07-14.

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 108 FT8 messages attributed to R6SJ as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (53%), followed by 20 m (47%). Several six-hour UTC windows tied for the largest share (53%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

108

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

20m · 51 10m · 57

First attributed message: 2026-06-07
Last attributed message: 2026-07-14 03:29 UTC

Observed FT8 message patterns

Attributed sample: 108 messages
Active dates: 7 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -17 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 43, strong (≥ -8 dB) 52.

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 R6SJ in decoded directed-looking exchanges:

F4BJN · France ×2 9A4ZM · Croatia DN9OPA · Fed. Rep. of Germany ES0RY · Estonia II9WWA · Sicily LY3PW · Lithuania LZ2RR · Bulgaria OE1SGU · Austria OE3KAS · Austria OK1VRV · Czech Republic R1LP · European Russia R1MA · 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.

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	R6SJ S/N	Counterpart	Counterpart S/N	Msgs	Capture
07-27 16:24	20m	- / -10	EA3FH	-4 / -	2	Partial capture
07-20 03:18	20m	- / -18	RM6J	-11 / -	3	Partial capture
07-14 03:24	20m	-9 / -	9Z4CH	- / -8	7	Partial capture
07-14 03:16	20m	-12 / -	9Z4CH	- / -9	7	Partial capture
07-13 11:39	10m	-13 / -	RV3DBK	- / -13	2	✓ Closing fragment
07-13 11:37	10m	-13 / -	LZ2RR	- / -3	3	✓ Closing fragment
07-13 11:35	10m	-15 / -	RL3F	- / -6	2	✓ Closing fragment
07-13 11:33	10m	-3 / -	RV1CC	- / -8	3	✓ Closing fragment
07-13 11:32	10m	-4 / -	R1LP	- / -	2	✓ Closing fragment
07-13 11:30	10m	-6 / -	RN1CW	- / -	2	✓ Closing fragment
07-13 10:36	10m	-16 / -	SV9BMG	- / -15	2	✓ Closing fragment
07-13 10:17	10m	-9 / -	F4BJN	- / -15	2	✓ Closing fragment
07-13 10:16	10m	-4 / -	UA4CKN	- / -9	2	✓ Closing fragment
07-13 10:13	10m	-13 / -	LY3PW	- / -16	3	✓ Closing fragment
07-13 04:08	20m	-6 / -	<...>	- / -9	4	Partial capture
07-13 04:01	20m	+1 / -	FS/F4EQE	- / -12	3	Partial capture
07-13 03:59	20m	-2 / -	<...>	- / -12	2	Partial capture
07-05 11:55	10m	- / -3	SV2DGJ	-22 / -	3	✓ Closing fragment
07-05 11:46	10m	-22 / -10	II9WWA	-22 / -	3	✓ Closing observed
07-05 11:32	10m	-9 / -	DN9OPA	- / -8	2	✓ Closing fragment
07-05 11:09	10m	-8 / -	9A4ZM	- / -11	2	✓ Closing fragment
07-05 11:06	10m	-10 / -	ES0RY	- / -7	4	✓ Closing fragment
07-05 10:56	10m	-4 / -	SP2WM	- / -12	2	✓ Closing fragment
07-05 10:48	10m	-12 / -11	F4BJN	-18 / -11	4	✓ Full exchange observed
07-05 10:46	10m	-10 / -	S52D	- / -17	3	✓ Closing fragment
07-05 10:46	10m	- / -8	F4FSY	-15 / -	2	Partial capture
07-05 10:43	10m	- / -	S52D	-14 / -	3	Partial capture
07-03 03:48	20m	- / +7	UP7WWA	-12 / -	2	✓ Closing fragment
06-24 03:14	20m	- / -	UA9AEJ	-18 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
032200 -12  981  9Z4CH R6SJ -09 (x8)
031845  -9 2179  R6SJ RM6J -18 (x3)
033300 -15  851  R6SJ VP5G R-16
162400 -18  217  R6SJ EA3HMM JN00
162400  -4 2455  R6SJ EA3FH JN01 (x2)

10m

UTC    dB Audio  Message
112430  -3 2306  LZ2RR R6SJ -15
113045  -5 1342  RN1CW R6SJ RR73 (x2)
113215  -2 1199  R1LP R6SJ RR73 (x2)
113345  -7 2449  RV1CC R6SJ -08 (x3)
113545 -15 1765  RL3F R6SJ -06 (x2)
113700 -17 2360  LZ2RR R6SJ -03 (x3)
113900  -8 1425  RV3DBK R6SJ R-13 (x2)

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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