IW3SSD — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IW3SSD, decoded by SO8OO in southeastern Poland. 24 FT8 messages attributed to this token as transmitter, on 60m, 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-08 and 2026-09-09.
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 24 FT8 messages attributed to IW3SSD 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 (50%), followed by 40 m (50%). In this small sample, the estimated median decoder S/N was -5 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-09 08:33 UTC
Observed FT8 message patterns
- Attributed sample
- 24 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -5 dB
- Estimated 10th-90th percentile
- -12 to +13 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 5, strong (≥ -8 dB) 18.
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 IW3SSD in decoded directed-looking exchanges:
Most frequent locator attributed to IW3SSD
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
- JN65 · 8 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 821 km (approx.)
- Last such locator decoded
- 2026-09-09 08:32 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 | IW3SSD S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-09 08:28 | 40m | +2 / -3 | Z68PX | -10 / -18 | 9 | Partial capture |
| 09-08 18:52 | 40m | - / - | F5RRS | +5 / - | 4 | Partial capture |
| 09-08 18:51 | 40m | +12 / - | ZD8GB | - / - | 5 | ✓ Closing fragment |
| 09-08 18:00 | 60m | -15 / +5 | DK6XY | +4 / +8 | 5 | ✓ Full exchange observed |
| 09-08 18:00 | 60m | -12 / +6 | OH3GBW | -5 / -5 | 8 | ✓ Full exchange observed |
| 09-08 17:57 | 60m | -3 / - | G0AZH | - / -1 | 2 | ✓ Closing fragment |
| 09-08 17:55 | 60m | -8 / - | PA4GDR | -8 / +3 | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 185230 +4 543 IW3SSD F5RRS JN36 (x3) 185345 +15 2778 ZD8GB IW3SSD JN65 185400 +6 543 IW3SSD F5RRS JN36 185415 +13 2778 ZD8GB IW3SSD JN65 082815 -5 2779 Z68PX IW3SSD JN65 082830 -9 344 IW3SSD Z68PX -03 (x2) 083015 +6 2779 Z68PX IW3SSD R-18 (x6)
UTC dB Audio Message 175815 -7 994 OE5YCP IW3SSD -07 175945 -11 1344 CQ IW3SSD JN65 180000 -6 349 IW3SSD OH3GBW KP21 180000 +3 813 IW3SSD DK6XY JO53 180015 -13 1344 DK6XY IW3SSD +08 180030 -7 348 IW3SSD OH3GBW KP21 180030 +6 812 IW3SSD DK6XY R+05 180045 -17 1344 DK6XY IW3SSD RR73 180100 -6 349 IW3SSD OH3GBW KP21 180100 +4 813 IW3SSD DK6XY 73 180130 -4 349 IW3SSD OH3GBW KP21 180145 -12 1344 OH3GBW IW3SSD -05 180200 -6 348 IW3SSD OH3GBW R+06 180215 -12 1344 OH3GBW IW3SSD RR73 180230 -1 349 IW3SSD OH3GBW 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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