R3YK — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO73

Receiver-side FT8 activity involving R3YK, decoded by SO8OO in southeastern Poland. 1,525 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 78 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-21.

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 1,525 FT8 messages attributed to R3YK as the transmitting token by decoded message structure across 78 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (60%), followed by 40 m (26%) and 80 m (13%). Most decodes (55%) fell within the six-hour window 03:00-09:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (74%); the estimated median was -3.5 dB.

Overview

1,525

Messages attributed

UTC dates decoded

297

Active 15-min windows

-3.5 dB

Estimated median S/N

Bands

80m · 191 40m · 394 20m · 913 10m · 27

First attributed message: 2026-06-07
Last attributed message: 2026-09-21 02:41 UTC

Observed FT8 message patterns

Attributed sample: 1,525 messages
Active dates: 78 UTC dates
Estimated median S/N: -3.5 dB
Estimated 10th-90th percentile: -12 to +9.9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 61, moderate (-15 to -9 dB) 336, strong (≥ -8 dB) 1,128.

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 R3YK in decoded directed-looking exchanges:

UB3YCK · European Russia ×3 UG4L · European Russia ×3 IQ2AAH · Italy ×2 PW8BR · Brazil ×2 RD1A · European Russia ×2 R2SN · European Russia ×2 R4FV · European Russia ×2 RA1AGA · European Russia ×2 UA3GX · European Russia ×2 7Q6UJ · Malawi R2XM · European Russia RA6YDX · 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 R3YK

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: KO73 · 1,028 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 990 km (approx.)
Last such locator decoded: 2026-09-21 02:40 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	R3YK S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-21 02:39	80m	+6 / -	RK6OV	-7 / -8	4	Partial capture
09-21 02:38	80m	+11 / -	EU7A	- / -	5	Partial capture
09-21 02:30	40m	- / -18	W2CG	-8 / -	2	✓ Closing fragment
09-20 17:48	40m	-4 / -	UA1ZJV	-7 / -12	3	✓ Closing observed
09-20 17:46	40m	-1 / -	RV1CC	- / -10	5	✓ Closing fragment
09-20 17:44	40m	0 / -24	R9JE	+5 / -12	5	✓ Full exchange observed
09-20 17:41	40m	-2 / -	EU4ABJ/P	- / -19	4	Partial capture
09-20 17:19	40m	-4 / -	U1BD	- / -	4	Partial capture
09-20 17:15	40m	-2 / -	EW3DF	- / -	4	Partial capture
09-19 06:38	40m	- / +2	RT2H	-4 / -	3	✓ Closing fragment
09-19 04:41	80m	0 / -	R3RRC/P	- / -	2	Partial capture
09-19 04:37	80m	-2 / -	R3RRC/P	- / -22	5	Partial capture
09-19 04:35	80m	-5 / -	EW2ZC	- / -	3	Partial capture
09-18 17:58	80m	- / -10	R6ML	+3 / -	3	✓ Closing fragment
09-18 17:56	80m	-6 / -9	R7YZ	-5 / -13	6	✓ Full exchange observed
09-18 17:55	80m	-6 / -9	R6CW	0 / -15	6	✓ Full exchange observed
09-18 17:53	80m	- / -8	R4FV	-4 / -	2	✓ Closing fragment
09-18 17:52	80m	+2 / -1	RA3VX	+2 / -	3	✓ Closing observed
09-18 17:50	80m	-5 / +4	R2SDZ	+5 / +1	5	✓ Full exchange observed
09-18 17:48	80m	+3 / +9	RK3YWA	-13 / -	4	✓ Closing observed
09-18 17:27	80m	- / -9	UB6OAJ	-5 / -	2	Partial capture
09-18 17:26	80m	- / +5	R3KJF	+4 / -	3	✓ Closing fragment
09-18 05:43	40m	-10 / -	RT2D	- / -	4	Partial capture
09-17 18:10	80m	- / +3	RA6LTD	-12 / -	2	Partial capture
09-17 18:10	80m	+8 / 0	EW6CB	+3 / -10	4	Partial capture
09-17 18:08	80m	+9 / -7	EW6TW	-4 / -11	5	✓ Full exchange observed
09-17 17:42	80m	-3 / -	RA6ZD	- / -10	2	✓ Closing fragment
09-17 17:39	80m	+2 / +1	UB3YFP	+4 / 0	6	✓ Full exchange observed
09-17 17:39	80m	-1 / +2	UB3YCK	-10 / -9	4	✓ Full exchange observed
09-17 17:37	80m	0 / -2	RA1TR	-3 / -14	7	✓ Full exchange observed
09-17 17:33	80m	-2 / -	R3YH	0 / -	3	✓ Closing observed
09-17 16:33	80m	+4 / 0	R2SN	-6 / -1	4	✓ Full exchange observed
09-17 16:31	80m	+2 / -7	RC1TF	-14 / -18	6	✓ Full exchange observed
09-17 16:28	80m	+2 / -	R2DRE	-12 / -13	3	✓ Closing observed
09-17 15:45	80m	0 / -	RC1TF	- / -	2	Partial capture
09-17 15:08	40m	- / -5	UA6LIK	-2 / -	2	✓ Closing fragment
09-17 15:06	40m	-4 / -	S79/DL2SBY	- / -6	3	Partial capture
09-17 14:42	40m	-4 / +6	EW7LZ	-1 / -18	8	Partial capture
09-17 14:40	40m	-7 / +4	UB3YCK	-6 / -18	7	✓ Full exchange observed
09-17 14:36	40m	-10 / +4	R2GCV	-8 / -7	6	✓ Full exchange observed
09-17 14:34	40m	- / +7	UG4L	-16 / -	2	✓ Closing fragment
09-17 14:34	40m	- / -12	UA6EU	-10 / -	2	Partial capture
09-17 14:28	40m	-9 / -2	EW6CB	-10 / -15	6	✓ Full exchange observed
09-17 14:13	40m	-9 / -	R6AC	-18 / -18	8	Partial capture
09-17 14:08	40m	-5 / -	UA3GX	-24 / +2	4	✓ Closing observed
09-17 06:06	40m	- / +2	R70SAB	0 / -	3	✓ Closing fragment
09-17 05:39	40m	-10 / -	DL8WEM	+11 / -16	4	✓ Closing observed
09-17 04:56	80m	-8 / -12	UA3YGP	-18 / -4	6	✓ Full exchange observed
09-17 04:47	80m	-12 / -	RU3X	- / -10	7	✓ Closing fragment
09-17 04:41	80m	- / -	HA7TM	+23 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
043815  -7  298  R3RRC/P R3YK R-22 (x5)
023830 +13  499  EU7A R3YK KO73 (x3)
023945  -9  896  R3YK RK6OV KN97
024000  +4  500  EU7A R3YK KO73
024015  -5  896  R3YK RK6OV KN97
024030  +8  500  EU7A R3YK KO73
024045  -8  897  R3YK RK6OV KN97
024100  +6  499  RK6OV R3YK -08
024245 -19 2010  R3YK UB6HJZ 73

40m

UTC    dB Audio  Message
174415  -6  525  R9JE R3YK KO73 (x2)
174500  +5  645  R3YK R9JE -24
174515  +2  525  R9JE R3YK R-12 (x2)
174615  +2  525  RV1CC R3YK KO73 (x5)
174845  -1  525  UA1ZJV R3YK KO73 (x2)
174930  -7  525  R3YK UA1ZJV RR73
023015  -9 1045  R3YK W2CG -18 (x2)

20m

UTC    dB Audio  Message
172515  +7  546  <...> R3YK KO73 (x7)
172845  +4  545  <HB040A> R3YK KO73 (x3)
173015  -1  377  RZ3Z/P R3YK KO73 (x3)
050845  +3 2495  R3YK RU9UC +03 (x2)

10m

UTC    dB Audio  Message
070115  +3  490  R3YK DK7UY JO44
070215  -8 1413  R3YK YL3CW KO36 (x3)
070445 -18 1941  R3YK DK7ZT -14 (x2)
125930 -13  326  CQ R3YK KO73
125945  -1  475  R3YK RA6YDX LN04
130045 -10  326  R3YK RG5A KN93
130045  -4  621  R3YK RA6YDX 73
130130 -11  326  RG5A R3YK RR73
063900 -18 1285  R3YK RC6BB KN84
144130 -20 2228  R3YK 7Q6UJ RR73
073130 -14 2313  R3YK R2XM -18 (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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