RC2DD — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO85

Receiver-side FT8 activity involving RC2DD, decoded by SO8OO in southeastern Poland. 2,510 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 80 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-15.

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 2,510 FT8 messages attributed to RC2DD as the transmitting token by decoded message structure across 80 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (72%), followed by 160 m (17%) and 40 m (9%). Most decodes (62%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (72%); the estimated median was -3 dB.

Overview

2,510

Messages attributed

UTC dates decoded

421

Active 15-min windows

-3 dB

Estimated median S/N

Bands

160m · 417 80m · 1,807 40m · 219 20m · 12 10m · 55

First attributed message: 2026-06-08
Last attributed message: 2026-09-15 17:34 UTC

Observed FT8 message patterns

Attributed sample: 2,510 messages
Active dates: 80 UTC dates
Estimated median S/N: -3 dB
Estimated 10th-90th percentile: -16 to +7.8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 266, moderate (-15 to -9 dB) 431, strong (≥ -8 dB) 1,813.

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 RC2DD in decoded directed-looking exchanges:

OH5CY · Finland ×2 R2SN · European Russia ×2 R6ML · European Russia ×2 RM3ZR · European Russia ×2 A93MO · Bahrain ×2 R2GBR · European Russia ×2 R2HB · European Russia ×2 R50RKZ · European Russia ×2 VP2MAA · Montserrat ×2 9A2TN · Croatia ×2 HB3YNF · Switzerland ×2 R4NBV · 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 RC2DD

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: KO85 · 1,604 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,193 km (approx.)
Last such locator decoded: 2026-09-15 17:34 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	RC2DD S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-15 23:50	80m	- / -	DO7KGB	+3 / -	4	Partial capture
09-15 17:34	160m	-10 / -	RA6ATZ	- / -	2	Partial capture
09-15 16:22	40m	-10 / -	A41MO	- / -	3	Partial capture
09-15 02:35	80m	-11 / -5	9A5MP	-17 / -16	6	✓ Full exchange observed
09-15 02:28	80m	-6 / -	VE3DZ	- / -26	10	Partial capture
09-15 00:47	80m	-2 / -	SP9TBT	- / -	3	Partial capture
09-15 00:41	80m	-9 / -	WI1U	- / -	2	Partial capture
09-15 00:38	80m	+2 / -	SP9TBT	- / -	3	Partial capture
09-15 00:30	80m	+5 / -12	N1TQP	-20 / -16	9	✓ Full exchange observed
09-15 00:28	80m	- / -	F5NNN	-18 / -	5	Partial capture
09-15 00:26	80m	+2 / -16	EX7DY	-17 / -6	5	✓ Full exchange observed
09-15 00:23	80m	+8 / +8	OH3DJP	-24 / -7	5	✓ Full exchange observed
09-15 00:21	80m	+3 / -4	SQ8NA	+6 / -4	4	✓ Full exchange observed
09-14 18:55	80m	+6 / -3	DL50IPARC	+8 / -13	5	Partial capture
09-14 18:28	160m	-12 / -7	SP9ENV	-11 / -	4	✓ Closing observed
09-14 18:22	80m	+13 / -	SM7OYP	+5 / -6	5	✓ Full exchange observed
09-14 18:20	80m	+4 / -	OZ/DF4ZL	- / -12	2	Partial capture
09-14 17:03	40m	-6 / -	BD8FOD	- / -	2	Partial capture
09-14 16:52	160m	-18 / -24	R7AW	-7 / -12	4	✓ Full exchange observed
09-14 16:46	80m	-4 / -7	OZ6TL	-2 / -	4	Partial capture
09-14 02:34	80m	0 / -	W1HS	- / -	2	Partial capture
09-14 02:27	80m	+9 / -10	EU1KI	+6 / +1	5	✓ Full exchange observed
09-14 02:24	80m	- / -	ON4MAP	-9 / -	4	Partial capture
09-14 02:23	80m	+10 / -	F5UOU	+1 / -7	3	✓ Closing observed
09-14 02:23	80m	- / -	F5NNN	-9 / -	5	Partial capture
09-14 02:22	80m	- / -4	F1PBZ	+1 / -	6	Partial capture
09-14 00:41	80m	- / -	R2PT	-2 / -	3	Partial capture
09-14 00:41	80m	+14 / +8	4L7T	-11 / -9	4	✓ Full exchange observed
09-14 00:38	80m	+12 / -	DO5HB	- / -	2	Partial capture
09-14 00:36	80m	+10 / -	DL1HDL	- / -	2	Partial capture
09-14 00:34	80m	+4 / +2	ON8FAB	-20 / -	4	✓ Closing observed
09-14 00:32	80m	+5 / -11	EA4HPY	+2 / -1	5	✓ Full exchange observed
09-14 00:30	80m	+2 / +1	OH6FSO	-4 / -11	5	✓ Full exchange observed
09-14 00:27	80m	+4 / -1	OK1SI	+8 / +2	5	✓ Full exchange observed
09-13 18:32	80m	+4 / -	ON5MX	- / -	5	Partial capture
09-13 18:26	160m	-10 / -	4U1GSC	- / -	2	Partial capture
09-13 18:19	160m	-19 / -24	R7DX	-2 / -4	5	✓ Full exchange observed
09-13 18:17	160m	- / -16	R6OBN	-3 / -	2	✓ Closing fragment
09-13 17:23	160m	-8 / -7	RU3FM	0 / +2	5	✓ Full exchange observed
09-13 16:56	160m	-20 / -19	UR5VOA	-4 / -11	3	✓ Full exchange observed
09-13 16:52	80m	+15 / -4	DG5MLA	+6 / -11	5	✓ Full exchange observed
09-13 16:50	80m	- / -9	SP9LS	+2 / -	2	✓ Closing fragment
09-13 16:45	80m	-3 / -	RK3YWA	-16 / +1	3	✓ Closing observed
09-13 16:43	80m	-4 / -4	RX6DA	-1 / -7	6	✓ Full exchange observed
09-13 16:43	80m	- / -16	RC7LX	-21 / -	2	Partial capture
09-13 04:20	80m	-13 / -13	OH2LV	-14 / -5	4	✓ Full exchange observed
09-13 02:10	80m	+4 / -	HI8JCD	- / -	3	Partial capture
09-13 02:08	80m	+11 / -	VP2MAA	- / -9	2	✓ Closing fragment
09-13 02:04	160m	- / -	RN3AOE	-5 / -	2	Partial capture
09-13 02:01	160m	-9 / -12	F5PPO	-2 / -8	7	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
023200  +1 2364  VE3DZ RC2DD R-09 (x3)
023500 -16 1450  9A5MP RC2DD KO85
023515 -18 1450  RC2DD 9A5MP -05
023530  -9 2366  VE3DZ RC2DD KO85
023615 -17 1449  RC2DD 9A5MP -05
023630 -12 1449  9A5MP RC2DD R-16
023645 -16 1449  RC2DD 9A5MP RR73
023700  -6 1450  9A5MP RC2DD 73
174500 -11 1814  RC2DD SK0HB +13
235030  +5 1505  RC2DD DO7KGB JO62 (x4)

160m

UTC    dB Audio  Message
182045  -3 1596  RC2DD R7DX 73
182200  -9  368  4U1GSC RC2DD KO85 (x3)
165215  -6 1160  RC2DD R7AW -24
165230 -18 1159  R7AW RC2DD R-12
165245  -8 1160  RC2DD R7AW RR73
165300 -19 1159  R7AW RC2DD 73
182815 -10  998  SP9ENV RC2DD KO85
182830 -10  998  RC2DD SP9ENV -07 (x2)
182915 -13  998  SP9ENV RC2DD 73
183615 -11  733  4L7T RC2DD KO85
173400 -12 1952  RA6ATZ RC2DD KO85 (x2)

40m

UTC    dB Audio  Message
163815  -9 2387  RC2DD RA4ABH LO20
152515 -17 1878  SP100PKP RC2DD KO85 (x2)
152715 -17 2034  BH8PYF RC2DD KO85 (x4)
000900  -9  478  WB8CQV RC2DD KO85 (x2)
161600  +0 1451  BG8HNC RC2DD KO85
170315  -9  980  BD8FOD RC2DD KO85 (x2)
162215  -8 1539  A41MO RC2DD KO85 (x3)

20m

UTC    dB Audio  Message
042615  -7 2346  RC2DD XQ1KK RR73
040100  -5  540  RC2DD A93MO +00 (x3)
033700 -17 1939  RC2DD UN6LN +03 (x2)

10m

UTC    dB Audio  Message
060130  -9  378  E2WWA RC2DD KO85 (x4)
063400 -16 2472  RC2DD RA6LDX KN97
102715 -19 1501  RD7O RC2DD KO85 (x3)
054300 -12  664  LZ1TDW RC2DD 73
051930 -20 1383  RC2DD RA4FEA +14
064600  +6  322  RC2DD RA6OY R-14 (x2)
101400 -12 1769  RC2DD E70SZ JN84 (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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