RK8W — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Asiatic Russia Most frequent locator attributed to this token: LO73

Receiver-side FT8 activity involving RK8W, decoded by SO8OO in southeastern Poland. 383 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 54 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-08.

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 383 FT8 messages attributed to RK8W as the transmitting token by decoded message structure across 54 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (58%), followed by 20 m (31%) and 160 m (5%). The busiest six-hour window was 16:00-22:00 UTC, containing 48% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.

Overview

383

Messages attributed

UTC dates decoded

114

Active 15-min windows

-7 dB

Estimated median S/N

Bands

160m · 21 80m · 224 40m · 20 20m · 118

First attributed message: 2026-06-07
Last attributed message: 2026-09-08 18:19 UTC

Observed FT8 message patterns

Attributed sample: 383 messages
Active dates: 54 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -15 to +3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 34, moderate (-15 to -9 dB) 129, strong (≥ -8 dB) 220.

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 RK8W in decoded directed-looking exchanges:

RD7O · European Russia ×2 R9CS/P · Asiatic Russia ×2 RC6OD · European Russia ×2 RK6OV · European Russia ×2 R6SBN · European Russia ×2 R70OBN · European Russia ×2 RW2Z · European Russia ×2 KP4AA · Puerto Rico RA4LAG · European Russia R7OQ · European Russia YT1DDL · Serbia R4AGO · 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 RK8W

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: LO73 · 239 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,300 km (approx.)
Last such locator decoded: 2026-09-08 15:37 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	RK8W S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-08 18:18	80m	-6 / -11	SP1BMK	+12 / -8	3	Partial capture
09-08 18:17	80m	-8 / -	RQ3D	- / -9	2	✓ Closing fragment
09-08 15:38	80m	-3 / +1	RA4FEA	+2 / -	5	✓ Closing observed
09-08 15:36	80m	-5 / -	R8CIS	- / -	3	✓ Closing fragment
09-07 17:56	160m	-7 / -	R7OQ	- / -	2	Partial capture
09-06 19:10	160m	-10 / -	R9CS/P	- / -	2	Partial capture
09-06 16:44	80m	-11 / -	R9CS/P	- / -25	9	✓ Closing fragment
09-06 03:04	40m	- / -15	RA6FRI	+1 / -	2	✓ Closing fragment
09-06 01:23	40m	-7 / -7	RD7O	+2 / -4	5	✓ Full exchange observed
09-06 01:22	40m	-8 / -	Z68BR	- / -12	2	✓ Closing fragment
09-05 17:13	80m	0 / -9	S51DI	+11 / -14	5	✓ Full exchange observed
09-05 17:11	80m	0 / -	RA3GK	- / -	2	Partial capture
09-05 17:08	80m	-2 / -	RA4CQW/P	-20 / -1	5	✓ Full exchange observed
09-05 17:06	80m	-1 / -	R1943OD	- / 0	2	Partial capture
09-05 04:42	40m	- / -13	R1943OD	+5 / -	2	Partial capture
09-04 01:57	80m	-9 / -	PT7YV	- / -	2	Partial capture
09-04 01:34	80m	+2 / -	PT7YV	- / -	3	Partial capture
09-04 01:18	80m	-2 / -	F4BPO	- / -14	3	✓ Closing fragment
09-04 01:02	80m	+4 / -	RD9U	- / -14	3	✓ Closing fragment
09-04 01:01	80m	-2 / -6	OR7K	-3 / -7	4	✓ Full exchange observed
09-04 00:57	80m	+8 / -	UA9YHA	- / -7	3	✓ Closing fragment
09-04 00:54	80m	+2 / -	DO8JB	-10 / -14	3	✓ Closing observed
09-04 00:52	80m	+1 / -	UA3IDQ	- / -10	3	Partial capture
09-03 23:48	80m	+5 / -	DL1UDO	- / -	2	Partial capture
09-03 23:45	80m	+1 / -18	KP4AA	-16 / -12	6	✓ Full exchange observed
09-03 23:42	80m	0 / -	<...>	- / -14	2	Partial capture
09-03 23:40	80m	-1 / -	ON5WR	- / -	3	Partial capture
09-03 23:14	160m	- / -	DL3AMW	-12 / -	5	Partial capture
09-03 16:11	160m	- / -7	RA3S	-13 / -	3	✓ Closing fragment
09-03 03:46	40m	- / -15	UA3RBM	-16 / -	3	✓ Closing fragment
09-02 16:04	80m	-17 / -	R9CS/P	+2 / +2	3	✓ Full exchange observed
09-01 23:54	40m	-18 / -	YT1DDL	- / -2	2	✓ Closing fragment
09-01 23:45	80m	-5 / -	RI1FJL	- / -18	4	✓ Closing fragment
09-01 15:02	40m	- / -8	RA3PGR	-12 / -	2	✓ Closing fragment
08-31 17:19	40m	-8 / -10	R6SBN	-4 / -	4	✓ Closing observed
08-30 23:06	160m	- / -	EA6Y	-3 / -	3	Partial capture
08-30 22:53	160m	-9 / -	RK9UN	-14 / -10	4	Partial capture
08-30 22:48	160m	- / -12	GI4SNA	-16 / -	3	✓ Closing fragment
08-30 22:48	160m	- / -	PA3FR	-14 / -	3	Partial capture
08-30 17:18	160m	- / -8	R6OM	+6 / -	2	✓ Closing fragment
08-30 16:48	80m	- / -17	R6OAD	-2 / -	2	Partial capture
08-30 01:46	80m	-11 / -10	RO6OP	+12 / -9	5	✓ Full exchange observed
08-29 01:37	80m	-3 / -14	<...>	-3 / -14	3	Partial capture
08-29 01:34	80m	+4 / -	UF3T	- / -	3	Partial capture
08-28 19:39	80m	-3 / -8	R6OIZ	-8 / -5	5	✓ Full exchange observed
08-28 18:29	160m	- / -9	RW2Z	-10 / -	2	✓ Closing fragment
08-28 18:21	160m	- / -16	OE6MMD	+1 / -	2	✓ Closing fragment
08-27 18:03	160m	- / +1	RA4LAG	-18 / -	4	✓ Closing fragment
08-27 18:01	160m	- / -13	RU6C	-3 / -	2	✓ Closing fragment
08-26 02:33	20m	0 / 0	<...>	-5 / -13	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
165000  -9 2872  R9CS/P RK8W 73
024615 -13 2741  7X5CY RK8W LO73
153630  -5 2839  R8CIS RK8W LO73 (x3)
153815  +2 2839  RK8W RA4FEA LO33 (x3)
153930  -3 2839  RA4FEA RK8W RR73
153945  +0 2837  RK8W RA4FEA 73
181700  -6 2946  RQ3D RK8W -09 (x2)
181845 +15 2827  RK8W SP1BMK JO73
181900  -6 2945  SP1BMK RK8W -08
181915 +10 2827  RK8W SP1BMK R-11

160m

UTC    dB Audio  Message
231545  -9 2405  RK8W DL3AMW JO51 (x2)
163615  -2 2100  RK8W R1943OD +01
173215  +3  304  RK8W RT2P RR73
174430  -9  647  RK8W UB6OAJ RR73
185630 -15  608  R9CS/P RK8W LO73 (x5)
192215  -7 2544  RK8W R9CS/P R+24
175630  -8 2640  R7OQ RK8W LO73 (x2)
181530 -12 2640  CQ RK8W LO73 (x2)

40m

UTC    dB Audio  Message
185545  -8 2398  RK8W EU6UE RR73
044200  +8 2596  RK8W R1943OD -13 (x2)
171645 -14 3046  RC6OX RK8W LO73
012145  -2 2981  Z62NS RK8W LO73
012215  -7 2981  Z68BR RK8W R-12 (x2)
012345  -8 2980  RD7O RK8W LO73
012400  +5 1783  RK8W RD7O -07
012415  -5 2980  RD7O RK8W R-04
012430  -1 1783  RK8W RD7O RR73
012445  -7 2980  RD7O RK8W 73
012545 -10 2980  TA2EE RK8W RR73
030400  +2 3028  RK8W RA6FRI -15 (x2)

20m

UTC    dB Audio  Message
031415  -3 3003  <...> RK8W LO73 (x2)
031515 -11 2179  R8QA/M RK8W LO73 (x2)
031615 -11 2010  <...> RK8W R-08 (x5)
091445 -14 2745  RA1NBG RK8W LO73
023345  +0 2933  <...> RK8W LO73 (x2)
023430  -5  832  RK8W <...> +00
023445  +2 2933  <...> RK8W R-13
050015  -2 1083  RK8W RW6A/P -07

10m

UTC    dB Audio  Message
092045 -10 2348  RK8W DL9KM R-06 (x2)
092115  -1 2703  RK8W DH2PC JN49
103630 -19 1796  RK8W F4FSY RR73
125900 -17 2389  RK8W R7OF RR73
111330 -24 1653  RK8W R3EDI RR73
074830  -8  325  RK8W RU4AJ -09
083645 -12 1432  RK8W R3OR -11 (x2)
135600  +9 2906  RK8W RT6Z -10 (x2)
171315 -20 1404  RK8W RA3LCX R-14
172115 -10  395  RK8W R3LC KO64
191900  -2 2879  RK8W RZ3DW -08
082200 -22 1987  RK8W RK6OV 73

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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