RA3ST — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO94

Receiver-side FT8 activity involving RA3ST, decoded by SO8OO in southeastern Poland. 54 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-09-12.

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 54 FT8 messages attributed to RA3ST as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (54%), followed by 80 m (37%) and 20 m (9%). Several six-hour UTC windows tied for the largest share (54%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (74%); the estimated median was -4 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-4 dB

Estimated median S/N

Bands

80m · 20 40m · 29 20m · 5

First attributed message: 2026-06-12
Last attributed message: 2026-09-12 15:17 UTC

Observed FT8 message patterns

Attributed sample: 54 messages
Active dates: 5 UTC dates
Estimated median S/N: -4 dB
Estimated 10th-90th percentile: -13 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 12, strong (≥ -8 dB) 40.

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 RA3ST in decoded directed-looking exchanges:

DL9KM · Fed. Rep. of Germany ×2 DK7UY · Fed. Rep. of Germany TN8GD · Republic of the Congo BA4IE · China R3WDW · European Russia R6DJR · European Russia R8CW · Asiatic Russia RA0WBW · Asiatic Russia RT4A/P · European Russia

Most frequent locator attributed to RA3ST

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: KO94 · 14 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,273 km (approx.)
Last such locator decoded: 2026-09-12 15:13 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	RA3ST S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-12 15:15	40m	-15 / -	RA0WBW	- / -24	2	✓ Closing fragment
09-12 15:13	40m	-9 / -	RT4A/P	- / -6	3	✓ Closing fragment
09-12 15:10	40m	-6 / -	RA3WY/P	- / -	3	Partial capture
09-12 15:09	40m	+2 / -7	DL9KM	-8 / -14	4	✓ Full exchange observed
09-12 15:07	40m	-2 / +5	R3WDW	+6 / -2	6	✓ Full exchange observed
09-12 15:07	40m	-10 / -	BA4IE	- / -12	2	✓ Closing fragment
09-12 15:06	40m	-9 / -	R8CW	-8 / -	3	✓ Closing observed
09-12 15:03	40m	-12 / -	UB8LAR	- / -8	2	Partial capture
09-12 15:02	40m	-12 / -	R5BM/M	- / -15	2	Partial capture
09-11 18:24	40m	-2 / -	R8HC/P	- / -15	3	Partial capture
09-11 17:51	40m	-3 / -	RA6OF	- / -7	3	Partial capture
09-11 12:51	40m	- / -	SP6FME	-10 / -	2	Partial capture
07-29 06:38	20m	-11 / -	TN8GD	- / -	2	✓ Closing fragment
06-29 07:12	10m	- / -5	DK7ZT	-9 / -	3	Partial capture
06-29 07:11	10m	- / 0	DK7UY	-4 / -	4	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
150845  -3 2492  R3WDW RA3ST RR73
150900  +8 2624  RA3ST R3WDW 73
150915  +1 2492  DL9KM RA3ST -14
150930  -6 1398  RA3ST DL9KM R-07
150945  +2 2492  DL9KM RA3ST RR73
151000 -11 1399  RA3ST DL9KM 73
151030  -7 2492  RA3WY/P RA3ST KO94 (x3)
151330  -5 2492  RT4A/P RA3ST KO94 (x3)
151530 -16 1712  RA0WBW RA3ST -24 (x2)
151730 -13 1457  RA3WY/P RA3ST -14

20m

UTC    dB Audio  Message
063815 -12  940  TN8GD RA3ST KO94 (x2)

10m

UTC    dB Audio  Message
070600 -18 1435  RA3ST RW6HPS LN15
070800 -18 2245  RA3ST RZ6ASO -01
071145  +0  486  RA3ST DK7UY JO44
071245  -5 1940  RA3ST DK7ZT -05
071245  -7  485  RA3ST DK7UY JO44
071315  -8 1940  RA3ST DK7ZT -05
071315  -7  485  RA3ST DK7UY R+00
071345 -15 1941  RA3ST DK7ZT -05
071345  -2  485  RA3ST DK7UY 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.

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