RK3SAI — 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 RK3SAI, decoded by SO8OO in southeastern Poland. 14 FT8 messages attributed to this token as transmitter, on 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-08-26.

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 14 FT8 messages attributed to RK3SAI as the transmitting token by decoded message structure across 6 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 -17 dB; no usual signal pattern is inferred.

Overview

14
Messages attributed
6
UTC dates decoded
6
Active 15-min windows
-17 dB
Estimated median S/N

Bands

20m · 14
First attributed message: 2026-06-07
Last attributed message: 2026-08-26 04:51 UTC

Observed FT8 message patterns

Attributed sample
14 messages
Active dates
6 UTC dates
Estimated median S/N
-17 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 3, strong (≥ -8 dB) 1.

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 RK3SAI in decoded directed-looking exchanges:

Most frequent locator attributed to RK3SAI

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 · 7 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,273 km (approx.)
Last such locator decoded
2026-08-26 04:51 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 UTCBandRK3SAI S/NCounterpartCounterpart S/NMsgsCapture
08-24 09:22 20m - / -12 R9AL -11 / - 3 Partial capture
08-24 09:20 20m - / -12 II7MGBT -4 / - 3 Partial capture
08-24 09:13 20m - / +4 OE8PIT +2 / - 5 Partial capture
08-19 09:32 20m - / -8 LA7XK -14 / - 3 Partial capture
08-17 13:07 20m - / -15 RZ6CO -8 / - 3 Partial capture
08-17 13:04 20m - / -7 YO6PPX -4 / - 3 Partial capture
08-17 13:00 20m - / - RG4H -18 / - 2 Partial capture
08-17 09:34 20m -14 / - R2ZDO - / - 2 ✓ Closing fragment
08-04 14:50 20m - / - DH2RL -11 / - 4 Partial capture
08-04 14:32 20m - / -14 PD2WL -12 / - 2 ✓ Closing fragment
08-03 14:38 20m - / -15 PF7DKW -2 / - 3 Partial capture
07-27 08:53 20m - / - F5RRS +2 / - 4 Partial capture
07-26 13:48 20m - / -17 G0VFB -9 / - 2 ✓ Closing fragment
07-17 10:01 20m - / - DL1R -1 / - 7 Partial capture
07-17 09:56 20m - / -7 LZ1AAW -10 / - 2 Partial capture
07-16 05:48 20m - / - RG5A -20 / - 2 Partial capture
07-16 05:46 20m - / - F4LNM -14 / - 3 Partial capture
07-15 05:18 20m - / - R8ACF -10 / - 2 Partial capture
07-14 14:46 20m - / - DJ1TU -11 / - 5 Partial capture
07-13 04:31 20m - / -10 R4ML -6 / - 2 ✓ Closing fragment
07-12 18:47 20m - / -12 RA3QM +4 / - 2 ✓ Closing fragment
07-11 14:28 20m - / -10 ON3NR -2 / - 2 ✓ Closing fragment
07-08 11:02 20m - / -14 YU0X +4 / - 2 Partial capture
07-06 05:20 20m - / -15 RL6MT -11 / - 10 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
091345  +3 2026  RK3SAI OE8PIT JN66
091345 +10 2084  RK3SAI IQ4JO JN63
091415  -2 2026  RK3SAI OE8PIT R+04 (x4)
092030  -5 2105  RK3SAI II7MGBT -12 (x3)
092230 -10 2364  RK3SAI R9AL -12 (x3)
092715  -5 2084  RK3SAI IQ4JO JN63
044815 -24 1421  RK3SAI DM2DXA -10
045115  -4 2626  R9AL RK3SAI KO94

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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