ON7ZO — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving ON7ZO, decoded by SO8OO in southeastern Poland. 73 FT8 messages attributed to this token as transmitter, on 160m, across 7 UTC dates in the available aggregate history. Observed between 2026-09-01 and 2026-09-17.
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 73 FT8 messages attributed to ON7ZO as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 160 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 -11 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 73 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- -11 dB
- Estimated 10th-90th percentile
- -20 to -3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 22, moderate (-15 to -9 dB) 24, strong (≥ -8 dB) 27.
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 ON7ZO 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 ON7ZO
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
- JO20 · 41 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,194 km (approx.)
- Last such locator decoded
- 2026-09-16 19:41 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 | ON7ZO S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-17 19:12 | 160m | - / -11 | 9A5E | -14 / - | 2 | ✓ Closing fragment |
| 09-16 19:51 | 160m | -24 / - | M3ZZF | - / -3 | 2 | ✓ Closing fragment |
| 09-16 19:33 | 160m | -17 / +2 | DO5OT | -12 / +1 | 5 | ✓ Full exchange observed |
| 09-15 19:40 | 160m | -8 / -13 | OH5KNL | -4 / -13 | 8 | ✓ Full exchange observed |
| 09-15 19:37 | 160m | -5 / - | SM2OTU | - / -18 | 2 | Partial capture |
| 09-15 19:13 | 160m | -14 / -14 | SP9ENV | -10 / -4 | 6 | ✓ Full exchange observed |
| 09-15 19:01 | 160m | - / - | LY2BNL | -9 / - | 6 | Partial capture |
| 09-15 18:58 | 160m | -4 / - | <...> | - / +4 | 2 | Partial capture |
| 09-15 18:53 | 160m | -3 / - | 3Z100PKP | - / - | 2 | Partial capture |
| 09-15 18:50 | 160m | +1 / - | DO1BWO | - / -20 | 4 | Partial capture |
| 09-15 18:47 | 160m | +5 / +3 | HB9GNH | -10 / -2 | 3 | ✓ Full exchange observed |
| 09-13 19:13 | 160m | -11 / - | RA1TI | - / - | 3 | Partial capture |
| 09-13 19:06 | 160m | -11 / -25 | RA4LAG | -24 / -16 | 8 | Partial capture |
| 09-13 18:56 | 160m | -18 / - | DL5JMN | -22 / +3 | 3 | Partial capture |
| 09-13 18:53 | 160m | -7 / - | RU3XK | - / - | 4 | Partial capture |
| 09-12 20:07 | 160m | -4 / -11 | LY7M | +12 / 0 | 4 | Partial capture |
| 09-12 20:03 | 160m | - / +2 | F5RMK | -16 / - | 2 | ✓ Closing fragment |
| 09-12 19:56 | 160m | - / - | HB9CXZ | -2 / - | 2 | ✓ Closing fragment |
| 09-03 19:23 | 160m | -18 / -23 | SP2GJI | -10 / - | 6 | ✓ Closing observed |
| 09-03 19:07 | 160m | - / -9 | EA4HPY | -19 / - | 2 | ✓ Closing fragment |
| 09-01 20:00 | 160m | -10 / - | LZ2IP | - / - | 3 | Partial capture |
| 09-01 19:44 | 160m | -12 / -20 | YL3CW | +2 / -12 | 3 | ✓ Full exchange observed |
| 09-01 19:40 | 160m | -11 / -6 | IK2VFR/P | -24 / -15 | 5 | ✓ Full exchange observed |
| 08-31 19:15 | 160m | - / -18 | SM5KNV | -6 / - | 2 | ✓ Closing fragment |
| 08-31 18:59 | 160m | - / -14 | OK1TP | -3 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 193345 -8 1562 ON7ZO DO5OT RR73 193400 -12 1561 DO5OT ON7ZO 73 193900 -18 1341 CQ ON7ZO JO20 (x4) 194045 -22 1837 ON7ZO IZ6ERS JN62 194100 -20 1338 CQ ON7ZO JO20 (x2) 195145 -24 1550 M3ZZF ON7ZO R-03 (x2) 191215 -13 2126 ON7ZO 9A5E -11 (x2) 193345 -21 1792 SN100PKP ON7ZO R-06 193400 -3 1791 ON7ZO RR73; DJ2AX <...> -10
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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