IW4BSI — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IW4BSI, decoded by SO8OO in southeastern Poland. 11 FT8 messages attributed to this token as transmitter, on 60m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-13 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 11 FT8 messages attributed to IW4BSI as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 60 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
- 11 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) 7, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 0.
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 IW4BSI in decoded directed-looking exchanges:
Most frequent locator attributed to IW4BSI
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
- JN44 · 7 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,137 km (approx.)
- Last such locator decoded
- 2026-09-14 19:08 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 | IW4BSI S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-14 19:10 | 60m | - / -16 | LY3W | +6 / - | 2 | ✓ Closing fragment |
| 09-14 19:08 | 60m | -23 / -10 | II8IHBC | -14 / - | 3 | Partial capture |
| 09-14 19:07 | 60m | - / -16 | IW5DNZ | -2 / - | 2 | ✓ Closing fragment |
| 09-13 21:15 | 60m | -11 / -12 | HA7TM | +2 / - | 3 | ✓ Closing observed |
| 09-13 20:39 | 60m | -24 / -10 | LY8O | 0 / - | 5 | ✓ Closing observed |
| 09-13 20:36 | 60m | -10 / -9 | DH8BAB | -4 / - | 3 | ✓ Closing observed |
| 09-13 20:24 | 60m | -21 / -2 | DH0GSU | +2 / -1 | 7 | ✓ Full exchange observed |
| 09-13 20:02 | 80m | - / +4 | IU1DXU | -6 / - | 2 | Partial capture |
| 09-13 19:56 | 80m | - / -15 | DK7ZT | +1 / - | 5 | Partial capture |
| 09-13 19:49 | 80m | - / -20 | DJ7M | +5 / - | 3 | Partial capture |
| 08-19 10:29 | 20m | - / -20 | EB3JT | -16 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 085830 -10 1728 IW4BSI F4DIA RR73
UTC dB Audio Message 203945 -24 1384 LY8O IW4BSI JN44 204000 -2 1384 IW4BSI LY8O -10 (x2) 204415 -14 783 SN31ROT IW4BSI JN44 211515 +2 367 IW4BSI HA7TM -12 (x2) 211600 -11 366 HA7TM IW4BSI 73 190230 -4 785 IW4BSI II9IAGM -12 190700 -4 357 IW4BSI IW5DNZ -16 (x2) 190845 -23 1534 II8IHBC IW4BSI JN44 190900 -13 1533 IW4BSI II8IHBC -10 (x2) 191000 +6 1081 IW4BSI LY3W -16 (x2)
UTC dB Audio Message 194900 +11 379 IW4BSI DJ7M -20 (x3) 195600 +0 1116 IW4BSI DK7ZT -15 (x5) 200230 -7 1334 IW4BSI IU1DXU +04 (x2) 201600 -7 1335 IW4BSI DO9FR JO53
UTC dB Audio Message 102930 -8 1206 IW4BSI EB3JT JN01 (x3) 103300 -11 1278 IW4BSI CT7AUT RR73
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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