ON5JT — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving ON5JT, decoded by SO8OO in southeastern Poland. 39 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-08-31.
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 39 FT8 messages attributed to ON5JT as the transmitting token by decoded message structure across 1 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 +6 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 39 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- +6 dB
- Estimated 10th-90th percentile
- -17 to +13 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 31.
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 ON5JT in decoded directed-looking exchanges:
Most frequent locator attributed to ON5JT
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
- JO10 · 28 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,335 km (approx.)
- Last such locator decoded
- 2026-08-31 15:02 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 | ON5JT S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-31 15:00 | 20m | +8 / - | YC2BHJ | - / - | 5 | Partial capture |
| 08-31 14:59 | 20m | +7 / -6 | R7OV | +6 / +4 | 5 | ✓ Full exchange observed |
| 08-31 14:58 | 20m | +14 / - | SP8BJU | - / - | 2 | ✓ Closing fragment |
| 08-31 14:56 | 20m | +10 / - | OH1LA | - / +5 | 2 | ✓ Closing fragment |
| 08-31 14:53 | 20m | +7 / - | IQ4JO | - / +3 | 3 | Partial capture |
| 08-31 14:46 | 20m | +7 / - | YB3MAZ | - / - | 6 | Partial capture |
| 08-31 14:41 | 20m | -9 / - | OH2LV | - / - | 4 | Partial capture |
| 08-31 14:40 | 20m | -16 / -15 | IU5HIU | -6 / -3 | 4 | ✓ Full exchange observed |
| 08-31 14:36 | 20m | -6 / - | YB3MAZ | - / - | 2 | Partial capture |
| 08-31 14:00 | 20m | -20 / - | SV2HTW | - / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 145700 +10 1875 CQ ON5JT JO10 (x2) 145800 +15 1875 SP8BJU ON5JT R+14 (x2) 145900 +5 1822 CQ ON5JT JO10 145915 +6 1822 ON5JT R7OV KN87 145930 +4 1822 R7OV ON5JT +04 145945 +6 1822 ON5JT R7OV R-06 150000 +10 1822 R7OV ON5JT RR73 150015 +5 1823 ON5JT R7OV 73 150030 +13 1822 YC2BHJ ON5JT JO10 (x5)
CW
No CW receptions recorded for this callsign in the last 30 days.
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