R7KCK — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: RK22

Receiver-side FT8 activity involving R7KCK, decoded by SO8OO in southeastern Poland. 117 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 15 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-19.

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 117 FT8 messages attributed to R7KCK as the transmitting token by decoded message structure across 15 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (65%), followed by 80 m (34%) and 20 m (1%). Most decodes (87%) fell within the six-hour window 14:00-20:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (81%); the estimated median was 0 dB.

Overview

117

Messages attributed

UTC dates decoded

Active 15-min windows

0 dB

Estimated median S/N

Bands

80m · 40 40m · 76 20m · 1

First attributed message: 2026-06-08
Last attributed message: 2026-09-19 05:28 UTC

Observed FT8 message patterns

Attributed sample: 117 messages
Active dates: 15 UTC dates
Estimated median S/N: 0 dB
Estimated 10th-90th percentile: -12 to +11 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 20, strong (≥ -8 dB) 95.

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 R7KCK in decoded directed-looking exchanges:

R9SR · Asiatic Russia RA0SCA · Asiatic Russia HA3FIC · Hungary IW8CGX · Italy R2DYC · European Russia R2SN · European Russia R2ZDO · European Russia R3HX · European Russia R3KJF · European Russia R6DZR · European Russia RA3TVW · European Russia RC2Y · 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 R7KCK

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: RK22 · 41 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 12,201 km (approx.)
Last such locator decoded: 2026-09-19 05:27 UTC

Other locator fields attributed to this token: KN65 (14).

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	R7KCK S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 05:29	40m	- / -	F4HXJ	-13 / -	2	Partial capture
09-19 05:27	40m	+3 / -	UY0HY	0 / -	3	✓ Closing observed
09-17 05:33	40m	- / -23	SP1TJ	-9 / -	4	✓ Closing fragment
09-17 05:32	40m	- / -10	SP6VXO	-8 / -	4	Partial capture
09-17 05:32	40m	-3 / 0	R3KJF	-5 / -	4	✓ Full exchange observed
09-17 05:30	40m	-2 / -5	RC2Y	-8 / -	5	✓ Closing observed
09-17 05:29	40m	- / -	YO6LM	+3 / -	2	Partial capture
09-17 05:28	40m	+2 / +1	IW8CGX	-10 / -12	4	✓ Full exchange observed
09-17 05:24	40m	-1 / -	R4CHN	- / -9	3	Partial capture
09-15 17:59	80m	- / -	YO3GK	+16 / -	4	Partial capture
09-15 17:54	80m	+7 / -3	SV3DCX	+7 / +7	12	✓ Full exchange observed
09-15 17:51	80m	+10 / -12	RA9CUU	-17 / -15	5	Partial capture
09-13 14:36	40m	+2 / -	R2DYC	-16 / +6	2	✓ Closing observed
09-13 14:32	40m	+5 / -17	9A4AA	-6 / -21	10	Partial capture
08-31 18:02	40m	0 / -	<...>	- / 0	4	Partial capture
08-31 18:00	40m	+10 / +10	UB3UAC	-6 / +1	5	✓ Full exchange observed
08-28 14:16	20m	- / -	IU5HIU	-14 / -	5	Partial capture
08-28 14:10	40m	+8 / -	DL5WP	- / -	2	Partial capture
08-15 19:07	40m	- / -9	IU2HUQ	-16 / -	2	Partial capture
08-15 19:06	40m	-3 / -	Z34CMF	- / -10	3	✓ Closing fragment
08-15 19:05	40m	- / -	SV1DKR	-17 / -	2	Partial capture
08-15 19:04	40m	-10 / -	UA1OIZ	-14 / +1	4	✓ Closing observed
08-15 19:03	40m	-16 / -	YT2FA	- / -10	2	✓ Closing fragment
08-15 18:58	40m	-6 / -	R3HX	-9 / +5	3	✓ Closing observed
08-14 19:34	40m	- / -	RC6OX	-20 / -	2	Partial capture
08-14 19:32	40m	-3 / +4	R6DZR	-6 / +8	6	✓ Full exchange observed
08-14 19:32	40m	- / -	SV3DCX	0 / -	2	Partial capture
08-14 19:28	40m	-6 / +7	R6YG	-9 / -	3	Partial capture
08-08 18:59	80m	- / +1	RA4ABH	0 / -	3	Partial capture
08-08 18:53	80m	+8 / -	EN35UKR	- / -	4	Partial capture
08-08 18:45	80m	+9 / -1	R2GFD	+2 / -17	9	✓ Full exchange observed
08-08 18:44	80m	- / -2	R1BED	-15 / -	3	Partial capture
08-08 18:43	80m	+12 / -	EN35UKR	- / -	4	Partial capture
08-08 18:43	40m	- / -	RL3QGD	-15 / -	3	Partial capture
08-08 18:42	40m	- / -	SP6U	-12 / -	4	Partial capture
08-08 18:40	40m	- / -	IK4LZH	-9 / -	3	Partial capture
08-08 18:39	40m	- / -	SV2AEL	-12 / -	4	Partial capture
08-08 18:38	40m	-8 / +3	RN6MA	-3 / -	4	✓ Closing observed
08-08 18:34	40m	- / -	SP6U	-8 / -	2	Partial capture
08-08 18:33	40m	-12 / +1	RA3TVW	-14 / -18	10	✓ Full exchange observed
08-08 18:32	40m	- / -	IK4LZH	-8 / -	2	Partial capture
08-08 18:30	40m	- / -	EW8CW	-12 / -	16	Partial capture
08-08 18:30	40m	-11 / -1	RU3DNN	-8 / -11	9	✓ Full exchange observed
08-08 18:30	40m	-10 / 0	S59A	+16 / -12	4	✓ Full exchange observed
08-08 18:24	80m	- / -6	DL1DXX	-3 / -	2	Partial capture
08-08 18:22	80m	+1 / -	RC6OD	- / -	9	Partial capture
08-07 18:14	40m	- / 0	EW2ZC	-6 / -	4	Partial capture
08-03 13:11	20m	- / -7	R9SR	-10 / -	2	✓ Closing fragment
07-31 17:42	40m	-2 / 0	R2SN	-1 / -5	5	✓ Full exchange observed
07-31 17:41	40m	- / -	R7DX	-10 / -	8	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
053230  -5  979  R7KCK R3KJF R+00
053300  -2 1883  R7KCK SP6VXO -10
053300 -10 1129  R7KCK SP1TJ JO74
053300  -7  979  R7KCK R3KJF 73
053330  -5 1883  R7KCK SP6VXO -15
053330  -9 1128  R7KCK SP1TJ JO74
053330 -14 1409  R7KCK R3IX KO76
053400 -17 1883  R7KCK SP6VXO -15
053400 -10 1129  R7KCK SP1TJ R-23 (x2)
052745  +4  762  UY0HY R7KCK RK22
052830  +0  762  R7KCK UY0HY RR73
052845  +2  762  UY0HY R7KCK 73
052900 -12 2997  R7KCK F4HXJ IN87 (x2)

80m

UTC    dB Audio  Message
175445  +5  464  R7KCK SV3DCX KM08
175530  +2 1030  SV3DCX R7KCK +07 (x2)
175615  +2  464  R7KCK SV3DCX R-03
175630  +9 1030  SV3DCX R7KCK +07
175645 +11  464  R7KCK SV3DCX R+02 (x3)
175800 +10 1029  SV3DCX R7KCK +07
175815 +11  464  R7KCK SV3DCX R+03 (x2)
175945 +19  733  R7KCK YO3GK KN34 (x4)

20m

UTC    dB Audio  Message
140430  -8 1650  R7KCK OM0RX JN88
042800 -12  707  RA0SCA R7KCK 73
173445  -3  991  R7KCK RA3Y -18
131115 -12  499  R7KCK R9SR -07 (x2)
141645 -10 2215  R7KCK IU5HIU JN53 (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.

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