IV3JSC — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IV3JSC, decoded by SO8OO in southeastern Poland. 19 FT8 messages attributed to this token as transmitter, on 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-17 and 2026-09-18.
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 19 FT8 messages attributed to IV3JSC as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -20 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 19 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -20 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 3.
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 IV3JSC in decoded directed-looking exchanges:
Most frequent locator attributed to IV3JSC
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
- JN66 · 8 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 755 km (approx.)
- Last such locator decoded
- 2026-09-18 09:26 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 | IV3JSC S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-18 09:25 | 40m | -22 / -10 | DK7UY | -9 / -13 | 6 | ✓ Full exchange observed |
| 09-18 09:24 | 40m | -20 / - | DJ2MS | - / -10 | 3 | ✓ Closing fragment |
| 09-18 09:23 | 40m | -22 / - | II6IGTO | - / - | 2 | Partial capture |
| 09-18 09:21 | 40m | -16 / -13 | OZ9FF | -13 / - | 3 | ✓ Closing observed |
| 09-18 09:21 | 40m | - / - | UT4PA | +1 / - | 3 | Partial capture |
| 09-18 09:20 | 40m | - / -11 | DK7ZT | -14 / - | 3 | Partial capture |
| 09-18 09:17 | 40m | - / - | 9A4ZM | -7 / - | 2 | Partial capture |
| 09-18 09:17 | 40m | -20 / +1 | DJ0MAB | -10 / -7 | 8 | ✓ Full exchange observed |
| 09-18 09:16 | 40m | -23 / -16 | SQ9GAI | +5 / -5 | 4 | ✓ Full exchange observed |
| 09-17 17:57 | 40m | - / - | DL3IAK | -11 / - | 6 | Partial capture |
| 09-17 17:49 | 40m | - / - | DL3IAK | -14 / - | 4 | Partial capture |
| 09-17 17:49 | 40m | - / - | R3LDK | -8 / - | 4 | Partial capture |
| 09-17 17:49 | 40m | - / - | DK7ZT | -1 / - | 4 | Partial capture |
| 09-17 17:49 | 40m | - / -12 | RK9S | +3 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 092145 -11 2316 IV3JSC OZ9FF -13 092200 +3 1710 IV3JSC UT4PA KO20 092215 -15 2316 IV3JSC OZ9FF RR73 092230 -16 1710 OZ9FF IV3JSC 73 092300 -20 1709 II6IGTO IV3JSC JN66 (x2) 092400 -20 1709 DJ2MS IV3JSC JN66 (x3) 092530 -21 1709 DK7UY IV3JSC JN66 092545 -9 392 IV3JSC DK7UY -10 092600 -23 1710 DK7UY IV3JSC JN66 092645 -9 392 IV3JSC DK7UY RR73 092700 -24 1710 DK7UY IV3JSC R-13 (x2)
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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