SV1JCZ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SV1JCZ, decoded by SO8OO in southeastern Poland. 22 FT8 messages attributed to this token as transmitter, on 80m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-15 and 2026-09-16.
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 22 FT8 messages attributed to SV1JCZ as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (100%). In this small sample, the estimated median decoder S/N was -24 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 22 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -24 dB
- Estimated 10th-90th percentile
- -24 to -20 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 21, moderate (-15 to -9 dB) 1, 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 SV1JCZ in decoded directed-looking exchanges:
Most frequent locator attributed to SV1JCZ
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 · 12 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,275 km (approx.)
- Last such locator decoded
- 2026-09-16 02:49 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 | SV1JCZ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-16 02:51 | 80m | - / -15 | UX7QV | -8 / - | 2 | ✓ Closing fragment |
| 09-16 02:46 | 80m | -24 / -16 | US2YW | +1 / -10 | 5 | ✓ Full exchange observed |
| 09-16 02:42 | 80m | -24 / -20 | OK1UOZ | 0 / - | 7 | ✓ Closing observed |
| 09-16 02:38 | 80m | -24 / -14 | 9A4ZM | +1 / - | 4 | ✓ Closing observed |
| 09-16 02:33 | 80m | - / - | R6LE | +9 / - | 2 | Partial capture |
| 09-16 02:26 | 80m | -20 / - | HF100PKP | - / -13 | 2 | Partial capture |
| 09-15 19:31 | 80m | - / - | HB9TKB | -12 / - | 10 | Partial capture |
| 09-15 19:28 | 80m | - / -16 | 9A3J | +2 / - | 2 | ✓ Closing fragment |
| 09-15 19:20 | 80m | - / -20 | RK6OQ | +10 / - | 4 | ✓ Closing fragment |
| 09-15 19:18 | 80m | -22 / -17 | SN8OPZ | +13 / -13 | 12 | ✓ Full exchange observed |
| 09-15 19:15 | 80m | - / -19 | R6FX | +6 / - | 4 | ✓ Closing fragment |
| 09-15 19:12 | 80m | - / -10 | RU6AX | +5 / - | 3 | ✓ Closing fragment |
| 09-15 19:03 | 80m | - / -24 | SQ100PKP | +17 / - | 3 | Partial capture |
| 09-13 05:59 | 60m | - / -14 | HA7TM | +13 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 024245 -24 1756 OK1UOZ SV1JCZ RR73 (x3) 024400 -1 1869 SV1JCZ OK1UOZ 73 (x2) 024545 -24 1755 CQ SV1JCZ KM18 024600 -1 1756 SV1JCZ US2YW KN28 024615 -24 1756 US2YW SV1JCZ -10 024630 +1 1756 SV1JCZ US2YW R-16 024645 -24 1756 US2YW SV1JCZ RR73 024700 +3 1756 SV1JCZ US2YW 73 024845 -24 1756 CQ SV1JCZ KM18 (x2) 025100 -6 1756 SV1JCZ UX7QV R-15 (x2)
UTC dB Audio Message 055945 +13 1107 SV1JCZ HA7TM JN97 (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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