IW8FDU — 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 IW8FDU, decoded by SO8OO in southeastern Poland. 15 FT8 messages attributed to this token as transmitter, on 80m, 40m, 10m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-15 and 2026-10-10.
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 15 FT8 messages attributed to IW8FDU as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (87%), followed by 80 m (7%) and 10 m (7%). In this small sample, the estimated median decoder S/N was -15 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-10-10 19:03 UTC
Observed FT8 message patterns
- Attributed sample
- 15 messages
- Active dates
- 5 UTC dates
- Estimated median S/N
- -15 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) 7, strong (≥ -8 dB) 1.
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 IW8FDU 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 IW8FDU
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
- JN71 · 5 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,075 km (approx.)
- Last such locator decoded
- 2026-10-10 06:44 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 | IW8FDU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-10 19:28 | 40m | - / -11 | AN5CV | -8 / - | 2 | ✓ Closing fragment |
| 10-10 19:07 | 80m | - / -8 | IR8PR | -3 / - | 3 | ✓ Closing fragment |
| 10-10 07:39 | 40m | - / -11 | DM8ITZ | +4 / - | 2 | ✓ Closing fragment |
| 10-10 06:39 | 40m | - / -11 | IQ9SZ/2 | -8 / - | 2 | Partial capture |
| 10-09 20:12 | 40m | -12 / +2 | AO5CV | -5 / +1 | 5 | ✓ Full exchange observed |
| 10-03 13:47 | 40m | -20 / +2 | IQ8DO | -22 / - | 3 | ✓ Full exchange observed |
| 09-19 11:41 | 40m | - / -4 | DL9KM | -10 / - | 9 | Partial capture |
| 09-17 08:20 | 40m | -11 / -18 | DD2PI | -14 / - | 3 | ✓ Closing observed |
| 09-17 08:07 | 40m | -22 / - | IU8RFW | -18 / +1 | 3 | Partial capture |
| 09-17 06:06 | 40m | -15 / - | OZ/DF4ZL | - / -7 | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 201000 -12 1801 LY4Q IW8FDU -09 201215 -11 2077 AO5CV IW8FDU JN71 201230 -5 2078 IW8FDU AO5CV +02 201245 -15 2077 AO5CV IW8FDU R+01 201300 -5 2078 IW8FDU AO5CV RR73 201315 -11 2077 AO5CV IW8FDU 73 063900 -7 1428 IW8FDU IQ9SZ/2 -11 (x2) 064200 -11 1429 IW8FDU RR73; YO5PSE <...> -10 064445 -21 1948 SQ5ANT IW8FDU JN71 073930 +2 480 IW8FDU DM8ITZ -11 (x2) 183045 -22 1840 IW8FDU JN71 192845 -8 690 IW8FDU AN5CV -11 (x2)
UTC dB Audio Message 190330 -24 1795 IZ8VYF IW8FDU 73 190730 -1 1699 IW8FDU IR8PR -08 (x3)
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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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