W8RJC — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving W8RJC, decoded by SO8OO in southeastern Poland. 7 FT8 messages attributed to this token as transmitter, on 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-16 and 2026-06-17.
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 7 FT8 messages attributed to W8RJC 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 -14 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 7 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -14 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 4, 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 W8RJC in decoded directed-looking exchanges:
Most frequent locator attributed to W8RJC
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
- EN72 · 3 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 7,524 km (approx.)
- Last such locator decoded
- 2026-06-16 02:06 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 | W8RJC S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-27 22:10 | 20m | - / - | I4RHP | -9 / - | 3 | Partial capture |
| 08-27 22:02 | 20m | - / - | SV5BYP | -14 / - | 2 | ✓ Closing fragment |
| 08-23 19:59 | 20m | - / - | OK1CT | +6 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 160830 -18 1375 W8RJC EA4T -18 201430 -5 1964 W8RJC HB9TIH R-19 195900 +5 2118 W8RJC OK1CT JN69 (x2) 200930 -3 1377 W8RJC EA4T -15 212915 -20 1926 W8RJC EC1D IN72 215230 -23 2272 W8RJC KQ3K R-05 220245 -14 2063 W8RJC SV5BYP KM46 (x2) 221045 -9 2480 W8RJC I4RHP JN54 (x3) 175145 -3 2258 W8RJC GJ0KYZ IN89
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