RD6OB — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KN98

Receiver-side FT8 activity involving RD6OB, decoded by SO8OO in southeastern Poland. 842 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 29 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-09-11.

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 842 FT8 messages attributed to RD6OB as the transmitting token by decoded message structure across 29 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (52%), followed by 80 m (27%) and 20 m (22%). Most decodes (85%) fell within the six-hour window 19:00-01:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (74%); the estimated median was -3 dB.

Overview

842

Messages attributed

UTC dates decoded

Active 15-min windows

-3 dB

Estimated median S/N

Bands

80m · 224 40m · 436 20m · 182

First attributed message: 2026-06-09
Last attributed message: 2026-09-11 20:56 UTC

Observed FT8 message patterns

Attributed sample: 842 messages
Active dates: 29 UTC dates
Estimated median S/N: -3 dB
Estimated 10th-90th percentile: -14 to +8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 54, moderate (-15 to -9 dB) 167, strong (≥ -8 dB) 621.

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 RD6OB in decoded directed-looking exchanges:

SQ3MZM · Poland ×2 R5AV · European Russia ×2 UB3YGA · European Russia ×2 AC0W · United States BA6IM · China DH2RL · Fed. Rep. of Germany DK2AI · Fed. Rep. of Germany DL5MKR · Fed. Rep. of Germany F4BYA/P · France G6MTI · England IK4RVY · Italy JH5AVM · Japan

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 RD6OB

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: KN98 · 554 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,257 km (approx.)
Last such locator decoded: 2026-09-11 20:56 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	RD6OB S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-11 20:55	40m	+3 / -	JF2JRD	- / -	3	Partial capture
09-11 20:54	40m	- / -	SV1DKR	-3 / -	3	Partial capture
09-11 20:53	40m	+4 / -	JA9CZE	-4 / -12	4	✓ Closing observed
09-11 20:49	40m	+2 / -	V51WH	- / -18	5	✓ Closing fragment
09-11 20:44	40m	+4 / -	JF4HDR	- / -10	4	✓ Closing fragment
09-11 20:42	40m	+2 / -9	DK5EO	-12 / -15	4	✓ Full exchange observed
09-11 20:40	40m	0 / -4	S51UN	-5 / -3	5	✓ Full exchange observed
09-11 20:40	40m	- / -	SV1DKR	-5 / -	2	Partial capture
09-11 00:47	40m	-11 / -5	UK8FCM	-16 / -7	4	✓ Full exchange observed
09-08 20:38	40m	+6 / -	JK1GOK	- / -12	6	✓ Closing fragment
09-07 01:24	40m	+10 / -	VE2CKW	- / -	2	Partial capture
09-07 01:22	40m	+10 / -	YO2MKE	- / 0	2	✓ Closing fragment
09-07 01:20	40m	+7 / -	AC9C	- / -22	4	✓ Closing fragment
09-07 01:07	40m	+7 / -	PY3TX	- / -22	5	✓ Closing fragment
09-07 00:57	40m	+15 / -	KB3UJT	- / -7	7	Partial capture
09-07 00:54	40m	+8 / -	K8MDB	- / -12	4	✓ Closing fragment
09-07 00:50	40m	+5 / -	KA3FMO	- / -	2	Partial capture
09-05 20:38	40m	+3 / -	JA0FMU	- / -	5	Partial capture
09-05 20:33	40m	+2 / -	VK6BAD	- / -24	7	✓ Closing fragment
09-05 20:23	40m	0 / -5	DB4KBR	-4 / -11	5	Partial capture
09-05 20:23	40m	+2 / -5	YO3GJE	-13 / -8	4	✓ Full exchange observed
09-05 20:16	40m	+8 / -	SO100PKP	- / -	8	Partial capture
09-05 20:14	40m	+6 / +3	R1QF	-16 / +2	4	✓ Full exchange observed
09-05 20:13	40m	+5 / -	SM7TZK	-11 / -6	3	✓ Closing observed
08-31 20:10	20m	-16 / +2	KE4EB	-2 / -2	3	✓ Full exchange observed
08-31 20:04	20m	- / 0	OO0O	+5 / -	7	✓ Closing fragment
08-31 19:58	20m	-12 / -	UA0LQE	- / -12	2	Partial capture
08-27 21:25	80m	+6 / +4	RA3BL	+4 / +2	5	✓ Full exchange observed
08-27 21:17	80m	-8 / -	SN4K	+12 / -9	4	Partial capture
08-27 21:15	80m	-15 / -	VU3IHK	- / -	2	Partial capture
08-27 21:04	40m	+7 / -	VU3IHK	- / -	6	Partial capture
08-27 21:00	20m	+4 / -	JA0FIL	- / -	2	Partial capture
08-27 20:57	20m	+2 / -	JA5XAE	- / -	4	Partial capture
08-27 20:48	20m	-5 / -	OA1F	- / -	13	Partial capture
08-27 20:43	20m	-2 / +1	WA1ZYX	-4 / -12	4	✓ Full exchange observed
08-27 20:41	20m	-2 / -	WB3JSW	- / -	2	Partial capture
08-27 16:48	20m	+3 / +5	UA9MA	+2 / -6	3	✓ Full exchange observed
08-27 16:33	20m	-7 / -	IK4RVY	- / -3	3	✓ Closing fragment
08-26 20:39	20m	-12 / -9	SQ3MZM	-18 / -10	4	✓ Full exchange observed
08-26 20:38	20m	- / -	EA5HM	-5 / -	2	Partial capture
08-26 20:38	20m	- / -	TA4SSK	-3 / -	2	Partial capture
08-26 20:20	20m	0 / -	PY5XT	- / -	2	Partial capture
08-26 20:14	20m	-8 / -2	RI1FJL	-8 / -	5	✓ Closing observed
08-22 00:54	20m	-11 / -	XE1RK	- / -	9	Partial capture
08-22 00:51	20m	-11 / -	YB1KXV	- / -8	3	✓ Closing fragment
08-21 22:26	40m	+6 / -2	DL9KM	-10 / -15	4	✓ Full exchange observed
08-21 22:20	40m	+1 / +7	EW8AAC	-4 / -16	6	✓ Full exchange observed
08-16 22:01	20m	-14 / -	W1AVK	- / -14	4	✓ Closing fragment
08-16 21:37	80m	- / -	DO6JSA	-22 / -	6	Partial capture
08-16 21:36	80m	0 / +3	R5AV	-6 / -6	4	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
204915  +2 2143  V51WH RD6OB KN98 (x5)
205330  +3 2143  JA9CZE RD6OB KN98 (x2)
205415  -4  603  RD6OB JA9CZE RR73
205430  +6 2143  JA9CZE RD6OB 73
205445  -4 1840  RD6OB SV1DKR KM18 (x3)
205545  +7 2144  JF2JRD RD6OB KN98 (x3)

20m

UTC    dB Audio  Message
210000  +0 2488  JA0FIL RD6OB KN98 (x2)
195700 -24 2717  RD6OB YB5SD RR73
195815 -14 2718  UA0LQE RD6OB -12 (x2)
200415 +16  378  RD6OB OO0O JO11 (x7)
201045  -1 2482  RD6OB KE4EB +02
201100 -16 2484  KE4EB RD6OB R-02
201115  -4 2483  RD6OB KE4EB RR73

80m

UTC    dB Audio  Message
211730 +10 1946  RD6OB SN4K KO03 (x3)
211845  -8 1942  SN4K RD6OB -09
211930  -8 1327  RD6OB RU3DBT R-04
212045 -10 1942  CQ RD6OB KN98 (x5)
212515  +7 2709  RD6OB RA3BL KO85
212530  +9 1942  RA3BL RD6OB +02
212545  +1 2709  RD6OB RA3BL R+04
212600  +3 1942  RA3BL RD6OB RR73
212615  +3 2709  RD6OB RA3BL 73

160m

UTC    dB Audio  Message
203345  +1  654  RD6OB RA6ATZ KN96 (x3)

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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