IU2UBS — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN45

Receiver-side FT8 activity involving IU2UBS, decoded by SO8OO in southeastern Poland. 231 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 32 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-15.

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 231 FT8 messages attributed to IU2UBS as the transmitting token by decoded message structure across 32 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (59%), followed by 10 m (24%) and 40 m (13%). Most decodes (72%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8.1 dB.

Overview

231
Messages attributed
32
UTC dates decoded
65
Active 15-min windows
-8.1 dB
Estimated median S/N

Bands

80m · 9 40m · 30 20m · 137 10m · 55
First attributed message: 2026-06-06
Last attributed message: 2026-09-15 18:43 UTC

Observed FT8 message patterns

Attributed sample
231 messages
Active dates
32 UTC dates
Estimated median S/N
-8.1 dB
Estimated 10th-90th percentile
-18 to +1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 32, moderate (-15 to -9 dB) 82, strong (≥ -8 dB) 117.

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 IU2UBS 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 IU2UBS

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 · 163 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,075 km (approx.)
Last such locator decoded
2026-09-15 18:43 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 UTCBandIU2UBS S/NCounterpartCounterpart S/NMsgsCapture
09-15 18:42 40m -9 / - YC2BUZ - / - 2 Partial capture
09-15 18:39 40m -14 / - LZ1ZF - / - 2 Partial capture
09-14 07:17 40m - / -13 F1UFX -13 / - 2 ✓ Closing fragment
09-14 07:14 40m - / - DJ0MAB -10 / - 2 Partial capture
09-14 07:11 40m - / -18 HG8LXL -1 / - 5 Partial capture
09-13 15:26 40m -15 / - G7RCQ - / -24 2 Partial capture
09-13 15:21 40m -21 / - G7RCQ - / -23 3 Partial capture
09-11 20:22 40m -6 / -16 M0PEL -13 / -19 4 ✓ Full exchange observed
08-31 18:38 20m -8 / - XW4KV - / -23 3 ✓ Closing fragment
08-31 18:34 20m -4 / - OY5T - / - 2 Partial capture
08-31 18:29 20m - / -16 OZ7DR -14 / - 2 Partial capture
08-31 18:20 20m -2 / - EX7DY - / - 2 Partial capture
08-30 16:14 20m -8 / - IU2VYI - / -20 3 ✓ Closing fragment
08-30 16:06 20m -6 / - VO1IV - / - 7 Partial capture
08-30 15:37 20m -10 / - MW3FLI -15 / - 3 ✓ Closing observed
08-26 17:55 20m +14 / - <...> - / - 7 Partial capture
08-26 17:42 40m - / -6 5A1AL -7 / - 2 ✓ Closing fragment
08-23 21:35 20m -12 / - 9Y4C - / - 2 Partial capture
08-23 20:52 20m -8 / - BU2FW - / - 12 Partial capture
08-23 20:45 20m -9 / - BU2FW - / - 3 Partial capture
08-23 20:40 20m -4 / - BU2FW - / - 3 Partial capture
08-23 18:55 40m 0 / - ZL1VAH - / -26 2 Partial capture
08-21 15:23 20m -3 / - 6K5BXQ - / - 3 Partial capture
08-21 12:56 10m -3 / - YB2CAR - / - 6 Partial capture
08-16 16:32 20m -4 / - <...> - / - 6 Partial capture
08-12 19:31 20m -6 / - JA0LFV - / - 2 Partial capture
08-12 19:24 20m -3 / - OX3LX - / -24 9 Partial capture
08-05 18:55 20m -17 / - VK2LAW - / -23 3 ✓ Closing fragment
08-03 19:03 20m - / - LZ2VQ -10 / - 2 Partial capture
08-03 19:03 20m - / - RA6OY -6 / - 5 Partial capture
08-03 18:28 20m -12 / - XW4KV - / - 5 Partial capture
08-02 13:45 20m -15 / - YO4NF - / -5 2 ✓ Closing fragment
07-29 19:06 10m -13 / - PY8ZB - / - 6 Partial capture
07-22 12:36 20m -21 / - W4DXM - / - 5 Partial capture
07-13 18:12 20m - / -16 YO6LM -1 / - 2 Partial capture
07-10 07:33 20m -22 / - IT9ACJ - / - 7 Partial capture
06-30 13:50 10m +5 / - PV8AJ - / -17 4 ✓ Closing fragment
06-30 13:47 10m +9 / - ML4DZP - / -22 2 Partial capture
06-30 13:44 10m +5 / - KP4WWA - / - 2 ✓ Closing fragment
06-30 13:19 10m -6 / - 8A1WWA - / - 2 Partial capture
06-30 13:16 10m +1 / - 9J2FI - / -21 3 ✓ Closing fragment
06-28 15:56 10m -3 / - 9H4JX - / -12 3 ✓ Closing fragment
06-28 15:54 10m -2 / - CN2DX - / -12 2 ✓ Closing fragment
06-28 15:36 10m +7 / - PP5HR - / -14 3 ✓ Closing fragment
06-26 19:34 80m -10 / -17 OK2WMC +6 / -10 6 ✓ Full exchange observed
06-26 19:30 80m -10 / -13 DK7ZT +1 / +1 2 Partial capture
06-26 14:59 20m - / - F5IXN -1 / - 2 Partial capture
06-26 14:06 10m - / - IK2ZJR -14 / - 8 Partial capture
06-25 19:19 10m -10 / - CN2DX - / - 2 Partial capture
06-25 19:12 10m -7 / - ER3CT - / -18 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
152815 -16 1987  G7RCQ IU2UBS R-24
071130  +1 1648  IU2UBS HG8LXL KN06 (x5)
071400  -9 2476  IU2UBS DJ0MAB JN49 (x2)
071715  +0 2470  IU2UBS 9A4ZM JN86
071745 -11 2474  IU2UBS F1UFX -13 (x2)
183930 -14 2474  LZ1ZF IU2UBS JN45 (x2)
184230  -9 2126  YC2BUZ IU2UBS JN45 (x2)
20m 
UTC    dB Audio  Message
181230  -3 2174  BU2FW IU2UBS 73
181300  -4 2174  CQ IU2UBS JN45
182045  +3 2174  EX7DY IU2UBS JN45 (x2)
182915 -19 1471  IU2UBS OZ7DR -16 (x2)
183200  -2 2174  OZ7DR IU2UBS 73
183400  -6 2174  OY5T IU2UBS JN45 (x2)
183800  -8 2174  XW4KV IU2UBS R-23 (x3)
183930  -6 2174  CQ IU2UBS JN45
184030  -9 2174  US2YW IU2UBS RR73
190115  -2 2174  CO8LY IU2UBS JN45
10m 
UTC    dB Audio  Message
135115  +3 2285  PV8AJ IU2UBS JN45 (x3)
190615 -15 1021  PY8ZB IU2UBS JN45 (x6)
125600  -4 2538  YB2CAR IU2UBS JN45 (x6)
80m 
UTC    dB Audio  Message
193030 -14 2459  CQ IU2UBS JN45
193045  +1 1671  IU2UBS DK7ZT -13
193100 -10 2459  DK7ZT IU2UBS R+01
193400 -13 2459  CQ IU2UBS JN45 (x2)
193445  +7 1845  IU2UBS OK2WMC JN99
193500 -12 2459  CQ IU2UBS JN45
193515  +7 1845  IU2UBS OK2WMC JN99
193530  -9 2459  OK2WMC IU2UBS -10
193545  +7 1845  IU2UBS OK2WMC R-17
193600 -12 2459  OK2WMC IU2UBS RR73
193615  +4 1845  IU2UBS OK2WMC 73
193800 -15 2459  CQ IU2UBS JN45                        a1
195045 -15 2460  SQ9LOJ IU2UBS 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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