IU2TWH — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IU2TWH, decoded by SO8OO in southeastern Poland. 14 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-08-28.
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 14 FT8 messages attributed to IU2TWH as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (79%), followed by 10 m (21%). In this small sample, the estimated median decoder S/N was -13 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-08-28 10:17 UTC
Observed FT8 message patterns
- Attributed sample
- 14 messages
- Active dates
- 5 UTC dates
- Estimated median S/N
- -13 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 8, 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 IU2TWH in decoded directed-looking exchanges:
Most frequent locator attributed to IU2TWH
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
- JN45 · 13 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,075 km (approx.)
- Last such locator decoded
- 2026-08-28 10:17 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 | IU2TWH S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-28 10:17 | 20m | - / - | PD3LKN | +9 / - | 3 | ✓ Closing fragment |
| 08-28 10:17 | 20m | - / -15 | PD5N | +9 / - | 4 | ✓ Closing fragment |
| 08-28 10:12 | 20m | -10 / - | KP2B | - / - | 4 | Partial capture |
| 08-27 22:04 | 20m | - / -15 | N2BJ | +13 / - | 2 | ✓ Closing fragment |
| 08-26 21:36 | 20m | - / -13 | EA8AT | -3 / - | 5 | ✓ Closing fragment |
| 07-21 21:56 | 40m | - / -15 | DK7ZT | -16 / - | 2 | Partial capture |
| 07-08 12:04 | 20m | - / -1 | OM0RX | -24 / - | 2 | Partial capture |
| 06-29 14:06 | 10m | -12 / - | ZS6MGM | - / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 220430 +11 2955 IU2TWH N2BJ RR73 222200 -23 1916 BA7LUI IU2TWH JN45 224545 -17 2444 KE8UOH IU2TWH JN45 101230 -9 1606 KP2B IU2TWH JN45 (x4) 101715 +9 1605 IU2TWH PD5N JO22 101730 -13 1606 CQ IU2TWH JN45 101745 +11 1606 IU2TWH PD3LKN JO22 (x2) 101915 +8 1606 IU2TWH PD5N JO22 101945 +7 1606 IU2TWH PD3LKN 73 102015 +14 1606 IU2TWH PD5N R-15 (x2)
UTC dB Audio Message 215600 -18 1905 IU2TWH DK7ZT -15 (x2)
UTC dB Audio Message 140600 -12 537 ZS6MGM IU2TWH JN45 (x2) 141100 -12 536 CQ IU2TWH JN45
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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