IZ7XNB — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IZ7XNB, decoded by SO8OO in southeastern Poland. 144 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 19 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-01.
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 144 FT8 messages attributed to IZ7XNB as the transmitting token by decoded message structure across 19 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (63%), followed by 40 m (35%) and 10 m (2%). Most decodes (63%) fell within the six-hour window 04:00-10:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -6 dB.
Overview
Bands
Last attributed message: 2026-09-01 05:13 UTC
Observed FT8 message patterns
- Attributed sample
- 144 messages
- Active dates
- 19 UTC dates
- Estimated median S/N
- -6 dB
- Estimated 10th-90th percentile
- -14 to +2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 48, strong (≥ -8 dB) 86.
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 IZ7XNB 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 IZ7XNB
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
- JN80 · 93 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,114 km (approx.)
- Last such locator decoded
- 2026-09-01 05:13 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 | IZ7XNB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-01 04:49 | 40m | -15 / -17 | KE4EB | -1 / -7 | 9 | ✓ Full exchange observed |
| 08-26 07:15 | 20m | -2 / - | RI1FJL | - / - | 4 | Partial capture |
| 08-25 05:07 | 20m | +3 / - | AK8A | - / - | 4 | Partial capture |
| 08-25 05:04 | 20m | - / -16 | N9NJY | -6 / - | 2 | ✓ Closing fragment |
| 08-04 05:52 | 20m | -15 / - | WA3MH | - / - | 3 | Partial capture |
| 08-04 05:47 | 20m | -10 / - | VK5RM | - / -18 | 3 | ✓ Closing fragment |
| 07-06 05:21 | 20m | -14 / - | VK2SMP | - / - | 2 | Partial capture |
| 06-28 10:42 | 20m | - / -10 | IQ7KM | -19 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 205630 -20 1971 IZ7XNB IQ2PV RR73 044930 -17 825 KE4EB IZ7XNB JN80 (x3) 045045 -1 828 IZ7XNB KE4EB -17 045100 -13 825 KE4EB IZ7XNB R-07 045115 -2 827 IZ7XNB KE4EB -17 045130 -15 824 KE4EB IZ7XNB R-09 (x2) 045315 -1 826 IZ7XNB KE4EB RR73 051330 -23 1924 II7MGXX IZ7XNB JN80
UTC dB Audio Message 055245 -16 1034 WA3MH IZ7XNB JN80 (x2) 050430 -7 1151 IZ7XNB N9NJY -16 (x2) 050700 +8 2758 AK8A IZ7XNB JN80 (x4) 071545 -6 2786 RI1FJL IZ7XNB JN80 (x5) 052000 -16 2005 ZL1BBW IZ7XNB JN80 (x2)
UTC dB Audio Message 134300 -10 773 TN8GD IZ7XNB 73
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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