RC6BB — 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 RC6BB, decoded by SO8OO in southeastern Poland. 1,637 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 59 UTC dates in the available aggregate history. Observed between 2026-06-10 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 1,637 FT8 messages attributed to RC6BB as the transmitting token by decoded message structure across 59 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (57%), followed by 40 m (24%) and 20 m (16%). Most decodes (85%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

1,637

Messages attributed

UTC dates decoded

305

Active 15-min windows

-14 dB

Estimated median S/N

Bands

160m · 18 80m · 932 40m · 385 20m · 259 10m · 43

First attributed message: 2026-06-10
Last attributed message: 2026-09-19 18:55 UTC

Observed FT8 message patterns

Attributed sample: 1,637 messages
Active dates: 59 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -21 to -6.4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 659, moderate (-15 to -9 dB) 683, strong (≥ -8 dB) 295.

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 RC6BB in decoded directed-looking exchanges:

R50RKZ · European Russia ×3 R7KM · European Russia ×3 UA6JQ · European Russia ×2 R2DGN · European Russia ×2 R3GO · European Russia ×2 R7LB · European Russia ×2 RA3VX · European Russia ×2 RD6OX · European Russia ×2 RG7O · European Russia ×2 RY6AAY · European Russia ×2 RZ6ASO · European Russia ×2 R1ZH · European Russia ×2

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 RC6BB

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 · 1,109 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,295 km (approx.)
Last such locator decoded: 2026-09-19 18:55 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	RC6BB S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-18 19:18	40m	-10 / -	IZ4IRO	- / -	2	Partial capture
09-17 18:45	80m	-23 / -7	EW6DM	+7 / -	3	✓ Closing observed
09-17 18:43	80m	-22 / -4	RN3QN	-1 / -	3	✓ Closing observed
09-17 18:28	40m	-11 / -	II8IHBC	- / -12	7	Partial capture
09-17 17:35	160m	- / -25	RZ6BS	-9 / -	3	✓ Closing fragment
09-14 18:19	40m	-9 / -	R1QF/P	-14 / -7	3	✓ Closing observed
09-13 19:20	160m	-24 / -19	R9CS/P	-2 / -15	3	Partial capture
09-13 19:03	40m	-14 / -	9A3MYL	- / -	2	Partial capture
09-13 18:56	40m	-16 / -	R3PAA	- / -4	2	Partial capture
09-13 18:47	80m	- / -	UA4FKT	+6 / -	2	Partial capture
09-13 18:37	40m	-10 / -10	R3DIK/M	-2 / +10	3	Partial capture
09-13 18:34	40m	-8 / -	R6HV/P	- / -	2	Partial capture
09-13 18:14	40m	-15 / -	R6HV/P	-8 / 0	3	✓ Closing observed
09-13 04:08	40m	-15 / -	R4AGE/P	- / -	6	Partial capture
09-13 04:05	40m	-15 / -2	RK6A	+2 / -	6	✓ Closing observed
09-13 03:42	40m	-13 / -	RU7KQ	- / -	8	Partial capture
09-13 03:40	40m	-18 / -	HK3W	- / -	2	Partial capture
09-13 03:37	80m	- / -6	UY0HY	-6 / -	2	✓ Closing fragment
09-13 03:24	80m	-9 / -	VP2MAA	- / -	2	Partial capture
09-12 18:32	40m	-14 / -18	RA6LO	-4 / -5	5	✓ Full exchange observed
09-12 18:16	80m	-15 / -	R4AGE/P	- / -	4	Partial capture
09-12 17:52	80m	-10 / -	R4AGE/P	- / -	4	Partial capture
09-12 17:42	160m	- / -25	R3GO	+1 / -	2	Partial capture
09-12 15:13	40m	-15 / -	RA3WY/P	- / -	3	✓ Closing fragment
09-12 03:37	40m	-9 / -19	R6OK	-8 / -	5	✓ Closing observed
09-12 03:30	40m	-16 / -	J38LD	- / -	8	Partial capture
09-12 03:26	80m	- / -5	R3KLE	-21 / -	2	✓ Closing fragment
09-11 18:34	80m	- / -16	RQ7R	-6 / -	2	✓ Closing fragment
09-11 17:25	160m	- / -18	RT6Z	-2 / -	3	Partial capture
09-11 16:19	40m	-18 / -	RJ6B	- / -	2	Partial capture
09-09 19:26	80m	-24 / -10	RA3PGR	-6 / -	3	Partial capture
09-09 18:35	40m	- / -12	RG3R	+2 / -	2	✓ Closing fragment
09-09 18:03	80m	-14 / -	UA0TP	- / -	4	Partial capture
09-09 18:02	80m	-12 / -	RD4CC	- / -	3	Partial capture
09-09 17:56	80m	-12 / -11	SN100PKP	+8 / -2	4	Partial capture
09-09 17:54	80m	-8 / -8	UF3T	+6 / -	4	✓ Full exchange observed
09-09 17:52	80m	-13 / -	R1CCE	-1 / -4	2	✓ Closing observed
09-08 19:26	80m	-13 / -	R4HKO	- / +1	2	✓ Closing fragment
09-08 19:23	80m	-10 / -	RM5P	-1 / +5	2	✓ Closing observed
09-08 19:09	160m	- / -12	RT6O	+4 / -	4	Partial capture
09-08 17:43	40m	-12 / -	HL3KPJ	- / -	2	Partial capture
09-08 17:38	40m	-10 / -	R3MDA	-7 / -2	2	✓ Closing observed
09-08 17:27	40m	-16 / -	RM6OM	- / -	2	Partial capture
09-08 17:22	80m	-14 / -	UA7N	- / -	2	Partial capture
09-08 17:14	80m	-12 / -15	RA0ADQ	-24 / -2	9	✓ Full exchange observed
09-08 17:12	80m	-12 / -6	R9SR	+5 / +5	5	✓ Full exchange observed
09-08 17:08	80m	-14 / -	UA3IKI	- / -	6	Partial capture
09-07 20:02	80m	-10 / -	UF6V/UA5D	- / +5	2	Partial capture
09-07 20:01	80m	-10 / -	SN31ROT	- / -	2	Partial capture
09-07 19:59	80m	-17 / -	UD3T	- / +8	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
184415  +0  512  RC6BB DM0CRACY -19
184715  +6 1049  RC6BB UA4FKT LO23 (x2)
191530 -10 2428  RC6BB RD9M/3 -14
191815 -20 2049  SN100PKP RC6BB R-03
193745 -18  749  RC6BB RU3T R-19
174100  +0  922  RC6BB RD1A/7 +04
184330 -22 1380  RN3QN RC6BB KN84
184415  -1 2179  RC6BB RN3QN -04 (x2)
184530 -23 1380  EW6DM RC6BB KN84
184545  +9 1952  RC6BB EW6DM -07 (x2)
192645  -6 2642  R2EA/P RC6BB KN84
185545 -19 2142  R3RRC/P RC6BB KN84

160m

UTC    dB Audio  Message
172645  -1 2054  RC6BB RT6Z -18
174215  +3 2096  RC6BB R3GO -25 (x3)
182630 -19 1042  4U1GSC RC6BB KN84
192030  -6 2977  RC6BB R9CS/P -19 (x2)
192215 -24 1041  R9CS/P RC6BB R-15
192430  +8 2977  RC6BB R9CS/P RR73
173315 -24 1514  RC6BB R6BH -21
173515 -13 1835  RC6BB RZ6BS KN96 (x3)
180900  -5 1086  RC6BB RD1A/7 -15
182500 -18 2334  R2EA/P RC6BB KN84

40m

UTC    dB Audio  Message
181315 -10 1086  VP5/K5UR RC6BB KN84
181930  -8 1742  R1QF/P RC6BB KN84 (x2)
182045 -14 1338  RC6BB R1QF/P RR73
175330 -10 1417  R6JAE RC6BB 73
182815 -11 1418  II8IHBC RC6BB KN84 (x7)
183515  -6 2752  RC6BB UA7XA -07
191845 -11 2479  IZ4IRO RC6BB KN84 (x2)

20m

UTC    dB Audio  Message
170915  -8 1900  RC6BB UN3P -19
170930  -1 1243  UN3P RC6BB R-10
170945 -11 1900  RC6BB UN3P -19
171000  +4 1243  UN3P RC6BB R-07 (x2)
171045  -7 1900  RC6BB UN3P RR73
171100  -3 1243  UN3P RC6BB R-07 (x3)
165145 -12 1243  RM6OS RC6BB KN84 (x4)
170130  -9 1242  RK6C RC6BB KN84 (x2)

10m

UTC    dB Audio  Message
063800 -19 1285  RZ3DX RC6BB 73
063900 -18 1285  R3YK RC6BB KN84
064145 -19 1284  R1ZH RC6BB KN84
163900  +7  472  RC6BB RV3QI -17
164330 -23 1878  RC6BB RA1AOB 73
083045 -10 2495  RC6BB RV1CC -14 (x2)
144730 -17 1411  RC6BB UA3RCW RR73
145130 -16  822  RC6BB UA9MA +00 (x2)
182545  -8  638  RC6BB RG5A R-03 (x2)
104545 -20 1160  <...> RC6BB R-09
105330 -20 1160  UR0UF RC6BB KN84
120845 -18 1160  R50RKZ RC6BB 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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee