RA3ALC — 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 RA3ALC, decoded by SO8OO in southeastern Poland. 725 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 36 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-16.

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 725 FT8 messages attributed to RA3ALC as the transmitting token by decoded message structure across 36 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (90%), followed by 80 m (7%) and 10 m (2%). Most decodes (83%) fell within the six-hour window 23:00-05:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (62%); the estimated median was -5.4 dB.

Overview

725

Messages attributed

UTC dates decoded

112

Active 15-min windows

-5.4 dB

Estimated median S/N

Bands

80m · 50 40m · 653 20m · 9 10m · 13

First attributed message: 2026-06-07
Last attributed message: 2026-09-16 10:03 UTC

Observed FT8 message patterns

Attributed sample: 725 messages
Active dates: 36 UTC dates
Estimated median S/N: -5.4 dB
Estimated 10th-90th percentile: -15 to +5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 64, moderate (-15 to -9 dB) 209, strong (≥ -8 dB) 452.

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 RA3ALC in decoded directed-looking exchanges:

9A3AUH · Croatia ×2 UB4HPQ · European Russia ×2 YO4NF · Romania ×2 T77RN · San Marino KF0YOB · United States KS1WK · United States 3G1DX · Chile 4O7CC · Montenegro 5Q1X · Denmark 6Y5HN · Jamaica 9K2WA · Kuwait 9Z4A · Trinidad & Tobago

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 RA3ALC

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 · 446 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,193 km (approx.)
Last such locator decoded: 2026-09-16 10:02 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	RA3ALC S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-16 10:02	40m	-18 / -	UB1OBV/P	- / -15	3	✓ Closing fragment
09-16 03:58	40m	+7 / -	D44TWO	- / -	3	Partial capture
09-16 03:51	40m	0 / -	D44TWO	- / -	4	Partial capture
09-16 03:46	40m	+3 / -	6Y5HN	-16 / -15	8	✓ Closing observed
09-16 03:44	40m	+2 / -	IZ8PPI	- / -20	2	Partial capture
09-16 03:43	40m	+8 / -	SP6AXW	- / -10	2	✓ Closing fragment
09-16 03:42	40m	-4 / -	IU8RFW	- / -13	2	✓ Closing fragment
09-16 03:40	40m	+1 / -	9Z4S	- / -16	5	✓ Closing fragment
09-16 03:19	40m	- / -2	RA6LTD	-6 / -	2	Partial capture
09-16 03:17	40m	- / -4	UA4FKT	0 / -	3	✓ Closing fragment
09-16 03:16	40m	- / +3	9K2WA	-8 / -	2	✓ Closing fragment
09-15 03:53	40m	+8 / -	LU6WAV	- / -	2	Partial capture
09-15 03:49	40m	+7 / -	PY5NBX	- / -18	4	✓ Closing fragment
09-15 03:45	40m	+2 / -	WZ4K	- / -	3	Partial capture
09-15 03:36	40m	+4 / -	KP2B	- / -13	3	✓ Closing fragment
09-15 03:30	40m	+4 / -	KP2B	- / -	3	Partial capture
09-15 03:18	40m	-10 / -	KQ4JSA	- / -	2	Partial capture
09-15 03:17	40m	-6 / -	D2ACE	- / -15	2	✓ Closing fragment
09-15 03:12	40m	-14 / -16	NA3M	-12 / -	3	✓ Closing observed
09-15 03:11	40m	-13 / -	KC4DPT	- / -11	3	✓ Closing fragment
09-14 03:27	40m	-6 / -	N4NF	- / -	2	Partial capture
09-14 03:21	40m	+11 / -	PY1USK	- / -	4	Partial capture
09-11 04:03	40m	-2 / -	SN100PKP	- / -12	2	Partial capture
09-11 04:01	40m	+3 / -	R8OAE	- / -20	3	✓ Closing fragment
09-11 03:43	80m	-21 / -14	OZ6MM	-6 / -	6	Partial capture
09-10 23:58	80m	+4 / -	HF5A	- / -	2	Partial capture
09-10 23:54	80m	-6 / +4	R9LE	-7 / 0	4	✓ Full exchange observed
09-10 23:49	80m	-12 / -	GW4BCF	-6 / -12	6	✓ Closing observed
09-10 23:48	80m	-2 / -	Z62NS	- / -	2	Partial capture
09-10 23:46	80m	0 / -	LB0TH	- / -	2	Partial capture
09-10 23:44	80m	-4 / +9	R5VCR	-19 / +3	5	✓ Full exchange observed
09-10 23:43	80m	-4 / -6	RN6HK	+2 / -	4	✓ Closing observed
09-10 23:42	80m	- / +1	RW1AI	-14 / -	2	✓ Closing fragment
09-10 23:39	80m	-10 / -	EC5M	- / -	2	Partial capture
09-10 23:37	80m	-15 / -	RC9OC	- / -	3	Partial capture
09-10 23:35	80m	-11 / -1	HA0OH	0 / -7	5	✓ Full exchange observed
09-10 23:35	80m	- / -11	ON1JP	-10 / -	6	Partial capture
09-10 23:33	80m	-15 / -18	G4UZG	+2 / -19	6	✓ Full exchange observed
09-10 23:28	80m	-2 / -18	DO9BAU	+4 / -8	5	✓ Full exchange observed
09-10 23:26	80m	-4 / -	Z62NS	- / -	2	Partial capture
09-10 23:26	80m	-3 / -18	F5RRS	+3 / -5	8	✓ Full exchange observed
09-10 23:24	80m	-4 / -5	SM4AZQ	-11 / -13	4	✓ Full exchange observed
09-10 23:22	80m	-13 / -11	PI4DX	+6 / -6	5	✓ Full exchange observed
09-10 23:19	80m	-13 / -11	9A3AUH	+4 / -11	8	✓ Full exchange observed
09-10 23:18	80m	-11 / -13	IN3WZS	+5 / -	6	✓ Closing observed
09-10 23:16	80m	-12 / -12	DK7ZT	+5 / -7	6	✓ Full exchange observed
09-10 23:16	80m	-16 / -6	YO4NF	+12 / +2	4	✓ Full exchange observed
09-10 23:16	80m	- / -9	YO6LM	+11 / -	5	✓ Closing fragment
09-10 23:15	80m	-19 / -4	RM8T	0 / -6	5	✓ Full exchange observed
09-10 23:03	40m	-7 / -9	NP4PR	-15 / -14	8	✓ 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
034900  +2 2138  6Y5HN RA3ALC R-16 (x3)
035015 -16 1294  RA3ALC 6Y5HN RR73
035030  +3 2148  6Y5HN RA3ALC 73
035100  +5 2148  D44TWO RA3ALC KO85 (x7)
100245 -16 1893  UB1OBV/P RA3ALC KO85 (x3)

80m

UTC    dB Audio  Message
235115  -7 1919  RA3ALC GW4BCF 73 (x2)
235445  -9 1905  RA3ALC R9LE +04
235500  -8 2066  R9LE RA3ALC R+00
235515  -5 2053  RA3ALC R9LE RR73
235530  -5 2066  R9LE RA3ALC 73
235815  -1 1946  HF5A RA3ALC KO85 (x2)
034345 -10 1914  RA3ALC OZ6MM -14
034400 -21 1914  OZ6MM RA3ALC KO85
034415  -5 1914  RA3ALC OZ6MM -18 (x5)

20m

UTC    dB Audio  Message
131730 -21 1728  KF0YOB RA3ALC KO85 (x3)
132230 -24 1851  RW0SM RA3ALC R-20
034215 -18 1118  RA3ALC HK3YL -14
035745 -19 2369  RA3ALC KS1WK -06 (x2)

10m

UTC    dB Audio  Message
124115  -2 1385  RA3ALC <...> +00
094745  -9 2447  T77RN RA3ALC KO85 (x3)
095045 -14 2448  RK0S RA3ALC -14

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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