IU3WOZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN55

Receiver-side FT8 activity involving IU3WOZ, decoded by SO8OO in southeastern Poland. 362 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 31 UTC dates in the available aggregate history. Observed between 2026-07-30 and 2026-09-20.

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 362 FT8 messages attributed to IU3WOZ as the transmitting token by decoded message structure across 31 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (66%), followed by 80 m (24%) and 20 m (9%). Most decodes (96%) fell within the six-hour window 18:00-00:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

362
Messages attributed
31
UTC dates decoded
82
Active 15-min windows
-12 dB
Estimated median S/N

Bands

160m · 6 80m · 86 40m · 238 20m · 32
First attributed message: 2026-07-30
Last attributed message: 2026-09-20 22:24 UTC

Observed FT8 message patterns

Attributed sample
362 messages
Active dates
31 UTC dates
Estimated median S/N
-12 dB
Estimated 10th-90th percentile
-21 to -6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 102, moderate (-15 to -9 dB) 174, strong (≥ -8 dB) 86.

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 IU3WOZ 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 IU3WOZ

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
JN55 · 254 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
945 km (approx.)
Last such locator decoded
2026-09-20 22:24 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 UTCBandIU3WOZ S/NCounterpartCounterpart S/NMsgsCapture
09-20 22:27 80m - / -2 T77RN 0 / - 2 ✓ Closing fragment
09-20 22:25 80m - / - UX7QV +9 / - 2 Partial capture
09-20 22:21 80m -2 / -4 LZ2VQ -3 / -9 5 ✓ Full exchange observed
09-20 22:18 80m -1 / -10 DL1UDO -6 / -8 6 ✓ Full exchange observed
09-20 22:18 80m 0 / +3 DO5RRS -6 / - 7 ✓ Closing observed
09-20 22:17 80m - / - LZ2VQ +5 / - 3 Partial capture
09-20 22:15 80m -2 / +3 EA3ISZ -22 / -8 3 Partial capture
09-20 22:15 80m - / - SN4K -6 / - 2 Partial capture
09-20 22:14 80m - / -14 GM6URC -10 / - 2 Partial capture
09-20 22:13 80m - / - PC2J 0 / - 3 Partial capture
09-20 22:11 80m -5 / -1 IU5HIU -16 / -5 7 Partial capture
09-20 22:08 80m -6 / -8 DL9KM -3 / -9 7 ✓ Full exchange observed
09-20 22:05 80m -6 / 0 DL5DQZ +2 / -7 7 ✓ Full exchange observed
09-20 22:05 80m - / - RA6OY 0 / - 5 Partial capture
09-20 22:03 80m -10 / -14 EU7FBB +2 / -9 5 ✓ Full exchange observed
09-20 22:01 80m -4 / - EA5HM -13 / -7 7 Partial capture
09-20 22:00 80m -8 / -6 ON4MAP -5 / -6 5 ✓ Full exchange observed
09-20 21:59 80m - / - LZ2VQ 0 / - 2 Partial capture
09-20 19:51 80m -12 / -10 SK5AD 0 / - 5 Partial capture
09-20 19:18 160m - / -12 LX1JH -4 / - 2 ✓ Closing fragment
09-20 19:11 160m - / - SP9UPH +12 / - 3 Partial capture
09-20 19:09 160m - / -11 DK7ZT -19 / - 4 Partial capture
09-20 19:07 160m - / -11 9A5E +10 / - 3 ✓ Closing fragment
09-20 13:16 40m - / -6 DL9KM -4 / - 3 ✓ Closing fragment
09-19 20:13 40m - / -25 9A1CCB +8 / - 4 ✓ Closing fragment
09-19 19:59 80m - / -9 OZ3MC -7 / - 2 ✓ Closing fragment
09-19 19:54 80m - / -10 PC2J -9 / - 6 Partial capture
09-19 19:44 160m -19 / -18 SP3BPU +6 / - 4 ✓ Closing observed
09-19 19:38 160m - / -8 DK9WI -10 / - 3 ✓ Closing fragment
09-19 19:34 160m - / - SQ9PBV +3 / - 2 Partial capture
09-19 19:31 160m - / -17 OK1DXR +6 / - 4 ✓ Closing fragment
09-19 19:27 160m -24 / -8 9A4ZM -6 / -7 4 ✓ Full exchange observed
09-18 22:45 160m - / -15 HA7TM +11 / - 3 ✓ Closing fragment
09-18 22:33 80m -17 / -24 EA3HMM -12 / -7 7 ✓ Full exchange observed
09-18 22:32 80m -9 / +5 DK2MAX 0 / -8 5 ✓ Full exchange observed
09-18 22:23 80m -8 / -5 DO4MTB -9 / -8 9 ✓ Full exchange observed
09-18 22:23 80m -13 / - F1HSY -17 / -8 2 Partial capture
09-18 22:18 80m -9 / -2 DO5OT +6 / -7 9 ✓ Full exchange observed
09-18 22:16 80m -8 / -9 DB0CUI -6 / - 4 ✓ Closing observed
09-18 22:16 80m - / - HF5A +11 / - 6 Partial capture
09-18 22:15 80m -11 / -18 DO9BAU -2 / -7 15 ✓ Full exchange observed
09-18 22:15 80m - / - OH1LA -15 / - 2 Partial capture
09-18 22:15 80m - / - DJ0MDC -2 / - 2 Partial capture
09-18 22:13 80m -3 / -6 YT5DL -4 / -6 5 ✓ Full exchange observed
09-18 22:10 80m - / -1 DK9MLA -2 / - 5 ✓ Closing fragment
09-18 20:08 80m - / -18 YO4NF +10 / - 2 ✓ Closing fragment
09-18 19:32 80m - / -21 5Q7DX +8 / - 2 Partial capture
09-18 19:18 80m -16 / -16 DD8BA -3 / -7 10 Partial capture
09-18 19:15 80m - / -5 DK6WS -8 / - 2 ✓ Closing fragment
09-18 19:10 80m -19 / -3 DL3RL +9 / - 6 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

80m 
UTC    dB Audio  Message
222100  +1 1795  CQ IU3WOZ JN55
222115  -3 1795  IU3WOZ DO5RRS R+03
222145  +0 1795  IU3WOZ LZ2VQ KN23
222200  +0 1795  DO5RRS IU3WOZ RR73
222215  -2 1795  IU3WOZ LZ2VQ KN23
222215 -11  259  IU3WOZ HF7X KO01
222300  -1 1795  LZ2VQ IU3WOZ -09
222315  -7 1795  IU3WOZ LZ2VQ R-04
222330  -4 1795  LZ2VQ IU3WOZ RR73
222400  -5 1795  CQ IU3WOZ JN55 (x2)
222530  +8 1795  IU3WOZ UX7QV KN29 (x2)
222730  +0  441  IU3WOZ T77RN -02 (x2)
160m 
UTC    dB Audio  Message
194515  +7 1448  IU3WOZ SP3BPU -18 (x2)
194730 -23 1788  CQ IU3WOZ JN55
190745  +8 2127  IU3WOZ 9A5E JN75 (x3)
190915 -18 1141  IU3WOZ DK7ZT -11 (x4)
191145 +11 2535  IU3WOZ SP9UPH JO90 (x3)
191800  -5 1788  IU3WOZ LX1JH -12 (x2)
40m 
UTC    dB Audio  Message
203830 -15 1905  IU3WOZ 2E0UMK IO92
201815 -16 1829  CQ IU3WOZ JN55                        a1 (x2)
201300  +7 1830  IU3WOZ 9A1CCB R-25 (x4)
095800 -20 1840  CQ IU3WOZ JN55 (x4)
131645  -4 1708  IU3WOZ DL9KM JN68 (x3)
131800 -21 1830  CQ IU3WOZ JN55
20m 
UTC    dB Audio  Message
221830  -8 1681  PY5QW IU3WOZ JN55
221930  -8 1681  YV5AEZ IU3WOZ JN55 (x3)
222630 -10 1681  CQ IU3WOZ JN55 (x3)
185215 -21 1675  IU3WOZ R3DHP KO95
185230 -15 1674  CQ IU3WOZ JN55
185300 -14 1674  R3DHP IU3WOZ -07
185430 -19 1674  CQ IU3WOZ JN55 (x2)
183300  -6 1781  5Z4VJ IU3WOZ JN55 (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.

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