RA3LC — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO64

Receiver-side FT8 activity involving RA3LC, decoded by SO8OO in southeastern Poland. 24 FT8 messages attributed to this token as transmitter, on 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-07-06 and 2026-08-11.

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 24 FT8 messages attributed to RA3LC as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -18 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-18 dB

Estimated median S/N

Bands

20m · 24

First attributed message: 2026-07-06
Last attributed message: 2026-08-11 16:26 UTC

Observed FT8 message patterns

Attributed sample: 24 messages
Active dates: 2 UTC dates
Estimated median S/N: -18 dB
Estimated 10th-90th percentile: -24 to -13 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 15, moderate (-15 to -9 dB) 9, strong (≥ -8 dB) 0.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with RA3LC in decoded directed-looking exchanges:

DC5QV · Fed. Rep. of Germany IK4LZH · Italy IQ4JO · Italy ON4ASV · Belgium RA5AK · European Russia RF9C · Asiatic Russia RK4CH · European Russia RZ6CO · European Russia

Most frequent locator attributed to RA3LC

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: KO64 · 13 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 915 km (approx.)
Last such locator decoded: 2026-08-11 16:26 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	RA3LC S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-11 16:26	20m	- / -	DF1WR	-6 / -	2	Partial capture
08-11 16:23	20m	- / -6	ON4ASV	+6 / -	3	✓ Closing fragment
08-11 15:52	20m	-14 / -	DC5QV	- / -15	2	✓ Closing fragment
08-11 11:47	20m	- / -	UA9CK	-19 / -	2	Partial capture
08-11 11:42	20m	- / -1	RK4CH	-8 / -	3	✓ Closing fragment
08-11 11:38	20m	- / -3	RF9C	-14 / -	2	✓ Closing fragment
08-11 10:36	20m	- / -15	RZ6CO	-14 / -	5	Partial capture
08-11 10:28	20m	- / -16	IQ4JO	-22 / -	2	✓ Closing fragment
07-25 16:46	10m	- / -	PD1HPB	-23 / -	2	Partial capture
07-06 09:36	20m	-22 / -	UB3DQR	- / -	3	Partial capture
07-06 09:33	20m	-24 / -	RK3AW/P	- / -	2	Partial capture
07-06 09:25	20m	- / -8	IK4LZH	+4 / -	4	✓ Closing fragment
07-06 08:30	20m	- / +6	RA5AK	-16 / -	2	✓ Closing fragment
07-06 08:27	20m	- / -2	R6OI	-14 / -	4	Partial capture
07-06 08:25	20m	- / -15	DL3RAJ	-17 / -	10	Partial capture
07-06 08:01	10m	- / -	RA3PN	-21 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
154945 -12 1011  CQ RA3LC KO64 (x3)
155245 -14  727  DC5QV RA3LC -15 (x2)
155615 -12  729  CQ RA3LC KO64 (x3)
162300  +4  722  RA3LC ON4ASV JO11 (x2)
162400  -7 2836  RA3LC RZ6L KN97
162400 +10  722  RA3LC ON4ASV 73
162630  -6  941  RA3LC DF1WR JN39
162645 -17  723  CQ RA3LC KO64                         a1
162700  -6  941  RA3LC DF1WR JN39

10m

UTC    dB Audio  Message
080130 -21 1654  RA3LC RA3PN KO84 (x3)
164630 -24 1792  RA3LC PD1HPB JO22 (x2)

40m

UTC    dB Audio  Message
163800 -16 1738  RA3LC RZ6L KN97

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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