IU4UFT — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN54

Receiver-side FT8 activity involving IU4UFT, decoded by SO8OO in southeastern Poland. 585 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, 10m, across 34 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-10.

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 585 FT8 messages attributed to IU4UFT as the transmitting token by decoded message structure across 34 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (47%), followed by 60 m (19%) and 40 m (19%). The busiest six-hour window was 16:00-22:00 UTC, containing 45% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

585
Messages attributed
34
UTC dates decoded
98
Active 15-min windows
-11 dB
Estimated median S/N

Bands

60m · 113 40m · 110 20m · 88 10m · 274
First attributed message: 2026-06-06
Last attributed message: 2026-09-10 19:06 UTC

Observed FT8 message patterns

Attributed sample
585 messages
Active dates
34 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-18 to -1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 136, moderate (-15 to -9 dB) 233, strong (≥ -8 dB) 216.

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 IU4UFT 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 IU4UFT

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
JN54 · 424 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,013 km (approx.)
Last such locator decoded
2026-09-10 19:04 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 UTCBandIU4UFT S/NCounterpartCounterpart S/NMsgsCapture
09-10 19:05 40m +4 / - SP3SXU - / -5 3 ✓ Closing fragment
09-10 18:38 40m -1 / - DG1ROL - / -1 2 ✓ Closing fragment
09-10 04:24 60m -19 / -18 LX1TI +6 / +2 9 Partial capture
09-10 04:22 60m -13 / - VE3ARF - / - 2 Partial capture
09-09 20:34 60m -15 / -18 G0AZH -6 / -18 12 Partial capture
09-09 20:28 60m - / - DL5CG -5 / - 10 Partial capture
09-09 20:26 60m - / +10 DL1NEO +1 / - 3 ✓ Closing fragment
09-09 19:47 60m -17 / +9 DG0OAT -6 / -5 6 ✓ Full exchange observed
09-09 19:44 60m -13 / -18 G3UHU -4 / -16 5 ✓ Full exchange observed
09-07 20:04 40m - / - ON1AEY +6 / - 5 Partial capture
09-07 19:57 40m -8 / -10 DG5PW -10 / -9 4 ✓ Full exchange observed
09-07 04:41 40m -5 / - N1NRL - / -24 5 ✓ Closing fragment
09-06 19:32 40m -2 / -5 LA7PKA -2 / - 4 ✓ Closing observed
09-06 18:31 40m -6 / - SQ100PKP - / -16 17 Partial capture
09-03 04:33 40m -10 / - OA4ENG - / - 3 Partial capture
08-31 19:57 60m - / - DM5KK +4 / - 2 Partial capture
08-31 19:56 60m - / -15 EA2BHE -14 / - 3 ✓ Closing fragment
08-31 19:55 60m -13 / -12 M0VPW -7 / - 3 ✓ Closing observed
08-31 19:51 60m - / - M0VPW -6 / - 3 Partial capture
08-31 19:30 60m -14 / -1 DC8RA +6 / +10 5 ✓ Full exchange observed
08-31 18:33 60m -14 / -7 I3QDK -3 / - 5 ✓ Full exchange observed
08-31 18:29 60m -16 / - F6FEG - / -13 2 ✓ Closing fragment
08-31 18:24 60m -14 / - OM7VV -12 / +2 3 ✓ Closing observed
08-31 18:21 60m - / +7 IK4CBO -9 / - 3 ✓ Closing fragment
08-29 21:16 40m - / - EA5HM -4 / - 2 Partial capture
08-27 21:31 20m -9 / -24 LU1BGO -9 / -14 14 Partial capture
08-27 17:23 20m -3 / - EP2AES - / - 2 Partial capture
08-19 19:20 20m -17 / - 5N0YEN - / - 7 Partial capture
08-19 19:12 20m -15 / - MM0JJU - / - 10 Partial capture
08-19 19:03 20m -14 / - BG5JGG - / - 8 Partial capture
08-18 20:17 40m -16 / - T77RN - / -15 10 Partial capture
08-18 19:59 40m - / +1 OK1GK -10 / - 2 ✓ Closing fragment
08-18 18:59 40m -16 / - EA5HM -14 / 0 3 ✓ Closing observed
08-16 10:09 10m - / - IU0VOG -11 / - 2 Partial capture
08-13 21:57 60m - / - G0AZH -5 / - 7 Partial capture
08-13 21:52 60m -11 / +6 G6BCC -17 / -7 2 Partial capture
08-13 21:35 60m -17 / -11 PC5H -13 / -7 4 Partial capture
08-13 20:59 60m -12 / - 9J2FI - / - 2 Partial capture
08-13 20:33 60m - / - G4ZFJ -3 / - 4 Partial capture
08-13 20:32 60m -14 / -9 F5RAV -11 / -7 4 ✓ Full exchange observed
08-10 04:31 40m -16 / - T48FCR - / - 3 Partial capture
08-09 18:42 40m - / - E70SZ -8 / - 2 ✓ Closing fragment
08-09 14:17 10m -13 / - DL0FTT - / -16 3 ✓ Closing fragment
08-09 13:33 10m -12 / - DO9BAU - / +9 2 ✓ Closing fragment
08-09 13:06 10m -6 / - SQ8ACE - / +1 2 ✓ Closing fragment
08-09 12:50 10m -6 / - DL6AZ - / -14 2 ✓ Closing fragment
08-09 12:46 10m -5 / - DN9ESA - / -12 2 ✓ Closing fragment
08-08 17:29 10m -16 / -18 DL8CN -8 / -15 6 ✓ Full exchange observed
08-08 17:26 10m -6 / - 7Q6UJ - / - 2 Partial capture
08-03 14:15 10m -16 / - SP9HPI - / -7 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
200515  +7 1738  IU4UFT ON1AEY JO11 (x4)
183745  -1 1739  CQ IU4UFT JN54 (x2)
183845  -1 1739  DG1ROL IU4UFT -01 (x2)
190315  +3 1739  CQ IU4UFT JN54 (x4)
190515  +5 1739  SP3SXU IU4UFT -05 (x3)
60m 
UTC    dB Audio  Message
203945  -4  680  IU4UFT G0AZH R-18
204000 -15 1733  G0AZH IU4UFT -18 (x2)
042245 -13 1734  VE3ARF IU4UFT JN54 (x2)
042415 -15 1734  LX1TI IU4UFT JN54 (x4)
042800  +5 1011  IU4UFT LX1TI -18
042815 -19 1734  LX1TI IU4UFT R+02
042830  +7 1012  IU4UFT LX1TI -18
042945 -21 1734  LX1TI IU4UFT R+02 (x3)
20m 
UTC    dB Audio  Message
172415  +0 1930  EP2AES IU4UFT JN54
213115  -7 1930  LU1BGO IU4UFT JN54
213130  -7 2028  IU4UFT LU1BGO -24 (x2)
213215 -15 1330  LU1BGO IU4UFT JN54
213230  -9 2028  IU4UFT LU1BGO -24
213245  -9 1331  LU1BGO IU4UFT R-14
213300 -10 2028  IU4UFT LU1BGO -24 (x2)
213345 -10 1330  LU1BGO IU4UFT R-14 (x6)
10m 
UTC    dB Audio  Message
153715 -13 1145  CQ IU4UFT JN54 (x9)
154215 -19 1145  DK3TA IU4UFT -11
095530 -15  930  IU4UFT G0JEI -16
100930 -11  567  IU4UFT IU0VOG JN61 (x2)
103945 -18 1144  LY2EW IU4UFT RR73
105130 -16 1144  Z61DX IU4UFT JN54

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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee