RU6CH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KN84

Receiver-side FT8 activity involving RU6CH, decoded by SO8OO in southeastern Poland. 2,260 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 61 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-06.

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 2,260 FT8 messages attributed to RU6CH as the transmitting token by decoded message structure across 61 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (46%), followed by 160 m (32%) and 20 m (14%). Most decodes (66%) 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 (63%); the estimated median was -5.9 dB.

Overview

2,260

Messages attributed

UTC dates decoded

211

Active 15-min windows

-5.9 dB

Estimated median S/N

Bands

160m · 723 80m · 150 40m · 1,040 20m · 326 10m · 21

First attributed message: 2026-06-06
Last attributed message: 2026-10-06 19:01 UTC

Observed FT8 message patterns

Attributed sample: 2,260 messages
Active dates: 61 UTC dates
Estimated median S/N: -5.9 dB
Estimated 10th-90th percentile: -16 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 275, moderate (-15 to -9 dB) 570, strong (≥ -8 dB) 1,415.

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 RU6CH in decoded directed-looking exchanges:

R3PMV · European Russia ×3 RA6OD · European Russia ×2 RU3ACA · European Russia ×2 RV6ANA · European Russia ×2 S57MPU · Slovenia ×2 R3TAR · European Russia ×2 R8CKD · Asiatic Russia ×2 UK8FCM · Uzbekistan ×2 RA3ZOM · European Russia ×2 SM7TZK · Sweden ×2 RV3SBS/P · European Russia ×2 4X5LL · Israel

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 RU6CH

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: KN84 · 860 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,295 km (approx.)
Last such locator decoded: 2026-10-06 19:01 UTC

Other locator fields attributed to this token: KN85 (385).

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	RU6CH S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-06 18:57	160m	-17 / -	UA6FD	- / -12	4	✓ Closing fragment
10-06 18:56	160m	- / -	M0IOY	-21 / -	2	Partial capture
10-06 18:55	160m	-16 / -12	ES4TRI	-17 / -12	5	✓ Full exchange observed
10-06 18:51	160m	-18 / -8	IK6QOP	+6 / -	2	✓ Closing observed
10-06 18:49	160m	-22 / -	OH1MA	- / -7	2	Partial capture
10-06 18:46	160m	-15 / -17	SP7IWA	+15 / -	5	✓ Closing observed
10-06 18:43	160m	-19 / -	RA3BY	- / -11	2	Partial capture
10-06 18:39	160m	-14 / -7	OH6RE	0 / -11	5	✓ Full exchange observed
10-06 18:34	160m	-18 / -	RU4CK	- / -7	2	Partial capture
10-06 18:32	160m	- / -	DG1VT	-5 / -	4	Partial capture
10-06 18:31	160m	-20 / -4	RA9AJ	-8 / -8	4	Partial capture
10-06 18:25	160m	-17 / -4	OE3PKU	-4 / -	6	✓ Closing observed
10-06 18:18	160m	- / -	OE3PKU	-2 / -	4	Partial capture
10-06 18:14	160m	-19 / -	SV8JNR	- / -12	2	✓ Closing fragment
10-06 18:11	160m	-21 / -7	OZ2LIN	0 / -19	4	✓ Full exchange observed
10-06 18:11	160m	-22 / -5	OZ6FH	+2 / -16	3	Partial capture
10-06 18:09	160m	- / -6	UA9FFV	-6 / -	3	✓ Closing fragment
10-06 18:04	160m	-18 / -19	IW5DNZ	-6 / -26	13	✓ Full exchange observed
10-06 18:04	160m	- / -	DO9FWA	-18 / -	2	Partial capture
10-06 18:03	160m	-14 / +3	SP4TST	+6 / -	3	✓ Closing observed
10-06 18:00	160m	-23 / 0	RN3AOE	-9 / -15	4	✓ Full exchange observed
10-06 17:57	160m	- / -	DL2AXA	-3 / -	5	Partial capture
10-06 17:57	160m	- / -6	SV2JU	-3 / -	3	✓ Closing fragment
10-06 17:54	160m	- / -	DO9FWA	-19 / -	5	Partial capture
10-06 17:43	160m	-10 / -	RA3ZK	- / -11	2	Partial capture
10-05 20:20	160m	-6 / -	R7ZY	- / -13	2	Partial capture
10-05 19:27	160m	-6 / -18	SX2LGT	-18 / -24	5	✓ Full exchange observed
10-05 17:00	160m	- / -	SM0EUI	-8 / -	3	Partial capture
10-05 16:34	160m	-10 / -	RA3BY	- / -7	2	Partial capture
10-05 16:29	160m	-11 / -9	RA3QTT	+2 / +1	6	✓ Full exchange observed
10-05 16:26	160m	-16 / -	RA3RGQ	- / -14	3	✓ Closing fragment
10-05 16:08	160m	-9 / -8	RC1TF	-9 / -16	5	✓ Full exchange observed
10-05 16:04	160m	-8 / -	UB1Q	- / -9	2	✓ Closing fragment
10-03 20:11	160m	- / -	M1DST	-19 / -	2	Partial capture
10-03 20:10	160m	- / -	DM2PE	-9 / -	5	Partial capture
10-03 20:07	160m	-13 / +1	OH5KNL	+8 / -6	5	✓ Full exchange observed
10-03 20:07	160m	- / -	M1DST	-21 / -	3	Partial capture
10-03 20:02	160m	-4 / -8	R2GCV	-18 / -11	4	✓ Full exchange observed
10-03 19:58	160m	-9 / -	F6GHG	+4 / -18	6	Partial capture
10-03 19:57	160m	-11 / -	RU3ACA	-8 / -9	3	✓ Closing observed
10-03 17:29	160m	-14 / -	RK3YWS/P	- / -7	2	Partial capture
10-03 17:09	160m	-10 / -	R3PMV	-11 / -8	3	✓ Closing observed
10-03 17:08	160m	-6 / -2	R3LG	+2 / -12	4	✓ Full exchange observed
10-03 17:00	160m	- / -	RA3WPF	-16 / -	3	Partial capture
10-03 17:00	160m	-11 / +2	R7DX	-8 / +6	2	Partial capture
10-03 16:17	40m	+2 / -11	IQ0YA	-13 / -11	4	✓ Full exchange observed
10-03 16:12	40m	-3 / -	RM8CZ	- / -9	3	✓ Closing fragment
10-03 16:09	40m	-2 / -	G3VCQ	- / -24	3	✓ Closing fragment
10-03 16:06	40m	-4 / +3	OE3MEI	+6 / -5	4	✓ Full exchange observed
10-03 16:05	40m	-2 / -	R6ADH	-17 / -11	3	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
185515 -14 1936  ES4TRI RU6CH -12
185545 -14 1936  CQ RU6CH KN84
185600 -18 1936  RU6CH ES4TRI R-12
185630 -24 1088  RU6CH M0IOY IO93
185630 -16 1936  RU6CH ES4TRI 73
185700 -18 1088  RU6CH M0IOY IO93
185715 -18 1936  UA6FD RU6CH -12
185730 -17 1936  RU6CH ES4TRI 73
185745 -18 1936  ES4TRI RU6CH 73
185815 -19 1936  UA6FD RU6CH -10 (x3)
190015 -15 1936  RU3VT RU6CH -13
190100 -20 1937  CQ RU6CH KN84
190115 -20 1936  RU6CH DL7ET JO31

40m

UTC    dB Audio  Message
161715  +1 2377  CQ RU6CH KN84
161745  +2 2377  IQ0YA RU6CH -11
161800 -13 1560  RU6CH IQ0YA R-11
161815  +2 2377  IQ0YA RU6CH RR73
161830 -13 1559  RU6CH IQ0YA 73
161845  +2 2377  CQ RU6CH KN84 (x10)

80m

UTC    dB Audio  Message
201900  +0 2294  RU6CH IK2BUF 73
201900  -9  719  RU6CH HB3YNF JN47
201915  +5  709  RV3SBS/P RU6CH -05 (x2)
202000  -3  604  RU6CH RV3SBS/P RR73
202015  -7  709  RV3SBS/P RU6CH 73
202045  +2  709  SA3LEN RU6CH -09
202115  -1  709  CQ RU6CH KN84
202200  +5 2568  RU6CH SA3LEN R+01
202215 -17  709  SA3LEN RU6CH RR73
202230  +5 2567  RU6CH SA3LEN R+01 (x2)
202515 -15  710  CQ RU6CH KN84
160715 -10  835  R4SCB RU6CH -15 (x2)

20m

UTC    dB Audio  Message
050830  -4 2735  RU6CH VK3TZT 73
051000  -6 2622  RU6CH ZL3GAV R-12 (x2)
051630 -16 1749  RU6CH EB7CFU IM77 (x12)

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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