SV1YB — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SV1YB, decoded by SO8OO in southeastern Poland. 28 FT8 messages attributed to this token as transmitter, on 40m, across 5 UTC dates in the available aggregate history. Observed between 2026-08-25 and 2026-09-14.
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 28 FT8 messages attributed to SV1YB 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 (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 28 messages
- Active dates
- 5 UTC dates
- Estimated median S/N
- -9 dB
- Estimated 10th-90th percentile
- -11 to -4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 14, strong (≥ -8 dB) 14.
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 SV1YB 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 SV1YB
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
- KM18 · 17 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,275 km (approx.)
- Last such locator decoded
- 2026-09-14 19:02 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 | SV1YB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-11 20:32 | 40m | -9 / - | JF2JRD | - / - | 2 | Partial capture |
| 09-06 17:03 | 40m | -4 / -7 | US3EW | +6 / - | 4 | ✓ Closing observed |
| 09-06 17:02 | 40m | - / -15 | EU6ABH | -8 / - | 2 | ✓ Closing fragment |
| 09-06 16:26 | 40m | - / -5 | RU8W | -6 / - | 2 | ✓ Closing fragment |
| 09-06 16:23 | 40m | -10 / - | TK5NJ | - / - | 2 | Partial capture |
| 09-05 19:13 | 40m | - / -9 | SP6FME | -11 / - | 5 | ✓ Closing fragment |
| 09-05 19:10 | 40m | - / -12 | EX7CQ | -1 / - | 3 | ✓ Closing fragment |
| 08-25 20:33 | 40m | -8 / - | IZ8PPI | - / 0 | 2 | ✓ Closing fragment |
| 08-25 20:32 | 40m | -7 / -2 | RN6MA | +1 / - | 3 | ✓ Full exchange observed |
| 08-25 20:29 | 40m | -10 / - | R1ZBR | - / -11 | 2 | ✓ Closing fragment |
| 08-25 20:15 | 40m | -10 / - | VJ6X | - / -13 | 6 | ✓ Closing fragment |
| 08-25 20:08 | 40m | -7 / - | VJ6X | - / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 191500 -13 2590 SV1YB SP6FME 73 162315 -10 2638 TK5NJ SV1YB KM18 (x2) 162630 -6 2586 SV1YB RU8W -05 (x2) 170215 -8 467 SV1YB EU6ABH -15 (x2) 170315 +8 2637 SV1YB US3EW KN78 (x2) 170400 -4 2638 US3EW SV1YB RRR 170415 +5 2637 SV1YB US3EW 73 203245 -7 2438 JF2JRD SV1YB KM18 (x2) 185730 -5 2839 UB1CDJ SV1YB KM18 190215 +0 2839 HS0ZOY SV1YB KM18
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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