9A1CHI — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving 9A1CHI, decoded by SO8OO in southeastern Poland. 25 FT8 messages attributed to this token as transmitter, on 160m, 80m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-08-26 and 2026-09-14.
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 25 FT8 messages attributed to 9A1CHI as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (48%), followed by 160 m (28%) and 20 m (24%). Several six-hour UTC windows tied for the largest share (72%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (88%); the estimated median was +10 dB.
Overview
Bands
Last attributed message: 2026-09-14 16:51 UTC
Observed FT8 message patterns
- Attributed sample
- 25 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- +10 dB
- Estimated 10th-90th percentile
- -9 to +18 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 3, strong (≥ -8 dB) 22.
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 9A1CHI in decoded directed-looking exchanges:
Most frequent locator attributed to 9A1CHI
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
- JN95 · 18 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 536 km (approx.)
- Last such locator decoded
- 2026-09-14 16:50 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 | 9A1CHI S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-14 16:52 | 80m | - / - | UA4FKT | +10 / - | 3 | Partial capture |
| 09-14 16:43 | 80m | +12 / - | KH8WW | - / -15 | 12 | Partial capture |
| 08-29 23:17 | 160m | - / - | R8LCA | -7 / - | 4 | Partial capture |
| 08-29 23:17 | 160m | +14 / - | RI1FJL | - / -7 | 7 | ✓ Closing fragment |
| 08-26 18:28 | 20m | -8 / - | RI1FJL | - / +5 | 6 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 164345 +9 963 KH8WW 9A1CHI JN95 (x12) 165230 +9 962 9A1CHI UA4FKT LO23 (x3)
UTC dB Audio Message 231715 +16 572 RI1FJL 9A1CHI 73 231730 -5 2053 9A1CHI R8LCA MO27 231745 +18 572 RI1FJL 9A1CHI 73 231800 -7 2053 9A1CHI R8LCA MO27 231800 +15 568 9A1CHI 9A4ZM JN86 231815 +18 572 RI1FJL 9A1CHI JN95 (x2) 231900 -7 2053 9A1CHI R8LCA MO27 231915 +10 572 RI1FJL 9A1CHI JN95 231930 -8 2053 9A1CHI R8LCA MO27 231945 +14 572 RI1FJL 9A1CHI R-07 (x2) 232200 -11 2044 9A1CHI I1BEP JN34
UTC dB Audio Message 182815 -6 3051 RI1FJL 9A1CHI JN95 (x6)
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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