SM4KYN — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SM4KYN, decoded by SO8OO in southeastern Poland. 37 FT8 messages attributed to this token as transmitter, on 80m, across 3 UTC dates in the available aggregate history. Observed between 2026-09-18 and 2026-09-20.
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 37 FT8 messages attributed to SM4KYN as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (68%); the estimated median was -7 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 37 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -7 dB
- Estimated 10th-90th percentile
- -14 to -4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 9, strong (≥ -8 dB) 25.
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 SM4KYN in decoded directed-looking exchanges:
Most frequent locator attributed to SM4KYN
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
- JO69 · 10 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,202 km (approx.)
- Last such locator decoded
- 2026-09-20 17:56 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 | SM4KYN S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-20 17:39 | 80m | -8 / -7 | DO8JB | +5 / +10 | 5 | ✓ Full exchange observed |
| 09-20 17:37 | 80m | -6 / - | RX3DRC | -8 / -1 | 5 | ✓ Closing observed |
| 09-20 17:36 | 80m | -8 / -14 | R2EC | +12 / - | 3 | ✓ Closing observed |
| 09-20 17:36 | 80m | - / -19 | R7DX | +8 / - | 3 | Partial capture |
| 09-20 17:32 | 80m | - / - | R7DX | +8 / - | 3 | Partial capture |
| 09-20 17:28 | 80m | -10 / -16 | US7KC | +14 / +4 | 11 | ✓ Full exchange observed |
| 09-20 17:26 | 80m | -6 / -7 | UA4FKT | +2 / 0 | 10 | ✓ Full exchange observed |
| 09-20 17:25 | 80m | -6 / -7 | G0OYQ | -5 / -5 | 6 | ✓ Full exchange observed |
| 09-20 17:25 | 80m | -6 / - | IQ4JO | +4 / -6 | 5 | ✓ Closing observed |
| 09-18 18:39 | 80m | -8 / - | UA3PKH | - / - | 2 | Partial capture |
| 09-18 18:35 | 80m | -9 / -19 | DO2ANW | 0 / -6 | 8 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 173730 -8 972 SM4KYN RX3DRC KO85 173815 -4 464 RX3DRC SM4KYN -01 (x3) 173930 +11 463 SM4KYN DO8JB JO32 173945 -8 464 RX3DRC SM4KYN 73 174015 -11 464 DO8JB SM4KYN +10 174030 +0 463 SM4KYN DO8JB R-07 174045 -5 464 DO8JB SM4KYN RR73 174100 +5 463 SM4KYN DO8JB 73 174945 -6 463 CQ SM4KYN JO69 (x3) 175130 +13 2480 SM4KYN SP7VPR RR73 175615 -6 408 CQ SM4KYN JO69
UTC dB Audio Message 164630 -3 1074 SM4KYN 9K2YM RR73
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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