RA3RUG — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: LO12

Receiver-side FT8 activity involving RA3RUG, decoded by SO8OO in southeastern Poland. 125 FT8 messages attributed to this token as transmitter, on 40m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-21 and 2026-08-04.

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 125 FT8 messages attributed to RA3RUG as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). Most decodes (100%) fell within the six-hour window 14:00-20:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.

Overview

125
Messages attributed
9
UTC dates decoded
31
Active 15-min windows
-15 dB
Estimated median S/N

Bands

40m · 125
First attributed message: 2026-06-21
Last attributed message: 2026-08-04 16:44 UTC

Observed FT8 message patterns

Attributed sample
125 messages
Active dates
9 UTC dates
Estimated median S/N
-15 dB
Estimated 10th-90th percentile
-21 to -5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 62, moderate (-15 to -9 dB) 36, strong (≥ -8 dB) 27.

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 RA3RUG in decoded directed-looking exchanges:

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 RA3RUG

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
LO12 · 53 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,499 km (approx.)
Last such locator decoded
2026-08-04 16:43 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 UTCBandRA3RUG S/NCounterpartCounterpart S/NMsgsCapture
08-04 16:43 40m -5 / - SP5KRD - / +2 3 ✓ Closing fragment
08-04 16:41 40m -18 / - RD9U - / -7 2 Partial capture
08-04 16:30 40m -18 / - R4CAQ -21 / +5 2 ✓ Closing observed
08-04 16:26 40m -9 / - RM9WU - / +1 3 ✓ Closing fragment
08-04 16:03 40m -6 / - HS0GWL - / -15 3 ✓ Closing fragment
08-04 16:01 40m -22 / - BH4THI - / - 2 Partial capture
08-04 15:52 40m -14 / - R1BPQ - / -3 2 ✓ Closing fragment
08-03 17:22 40m -17 / - 5B4ARQ - / - 2 ✓ Closing fragment
08-02 17:46 40m -17 / - RA4ADF -19 / - 5 ✓ Closing observed
08-02 17:31 40m -20 / - SP7TF -22 / -6 2 ✓ Closing observed
08-02 16:42 40m -18 / - RA3TVW - / +2 2 ✓ Closing fragment
08-02 16:40 40m -13 / - YE4FNN - / -5 2 ✓ Closing fragment
08-02 16:31 40m -10 / - R8CJG - / -10 3 ✓ Closing fragment
08-02 16:26 40m -9 / - UB0SMX/P - / -8 2 ✓ Closing fragment
08-01 17:36 40m -5 / +1 SQ9MEZ -8 / - 3 Partial capture
08-01 17:31 40m -18 / - RA1OW - / - 2 ✓ Closing fragment
08-01 16:37 40m -23 / - UB4HVI - / -5 2 ✓ Closing fragment
07-31 17:12 40m -3 / - BI9BLG - / -15 2 Partial capture
07-31 17:10 40m -19 / - UN7PPV - / -5 2 ✓ Closing fragment
07-31 17:09 40m -2 / - RX7O 0 / +4 3 ✓ Closing observed
07-31 16:48 40m -14 / - UA0ACG - / -10 3 ✓ Closing fragment
07-31 16:36 40m -22 / - BG5WDR - / -12 2 Partial capture
07-31 16:32 40m -19 / - RZ3DZ - / +2 2 ✓ Closing fragment
07-31 16:30 40m -19 / +9 RN6HK -15 / -5 5 ✓ Full exchange observed
07-31 16:19 40m -16 / - UA0ACG - / - 2 Partial capture
07-31 15:53 40m -21 / - EX8ABQ - / - 2 Partial capture
07-31 15:48 40m -20 / - R3XBB -20 / - 2 ✓ Closing observed
07-31 15:32 40m -18 / - VU2OGQ - / - 3 Partial capture
07-31 15:13 40m -21 / - R2DAW - / +3 2 ✓ Closing fragment
07-31 14:41 40m -22 / - RZ6LY -20 / - 2 ✓ Closing observed
07-30 15:30 40m -20 / - RO5A - / +2 2 ✓ Closing fragment
07-29 19:23 40m - / - RV6HEG -24 / - 2 Partial capture
07-29 19:20 40m -8 / - R8UJ - / -6 4 Partial capture
07-29 19:14 40m -6 / - R1BGR - / -8 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
160345  -6  584  HS0GWL RA3RUG R-15 (x3)
162245 -22 1641  RA3RUG YU7VK RR73
162430  -7 2792  UA0LQE RA3RUG -09
162645  -9  926  RM9WU RA3RUG LO12 (x3)
163030 -18 2115  R4CAQ RA3RUG R+05
163045 -21 2114  RA3RUG R4CAQ RR73
164115 -19 1170  RD9U RA3RUG LO12 (x2)
164315  -6 2555  SP5KRD RA3RUG LO12 (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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