IU2UBS — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

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. 318 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 46 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-11-05.

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 318 FT8 messages attributed to IU2UBS as the transmitting token by decoded message structure across 46 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (43%), followed by 40 m (36%) and 10 m (19%). Most decodes (73%) 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 dB.

Overview

318
Messages attributed
46
UTC dates decoded
86
Active 15-min windows
-8 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-11-05 19:00 UTC

Observed FT8 message patterns

Attributed sample
318 messages
Active dates
46 UTC dates
Estimated median S/N
-8 dB
Estimated 10th-90th percentile
-16 to +1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 33, moderate (-15 to -9 dB) 113, strong (≥ -8 dB) 172.

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.

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 · 229 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,075 km (approx.)
Last such locator decoded
2026-11-05 19:00 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
11-05 18:58 40m -6 / - LA1PHA - / - 5 Partial capture
11-05 18:56 40m -7 / - K2INC - / - 4 Partial capture
11-03 14:36 40m -15 / - OH3SW - / - 4 Partial capture
11-01 17:03 40m -9 / - EU2ABM - / - 3 Partial capture
10-31 15:24 10m -9 / - TJ1GD - / - 4 Partial capture
10-29 19:36 40m +1 / - VJ6X - / - 3 Partial capture
10-28 06:55 40m - / - F5PBG -12 / - 2 Partial capture
10-28 06:53 40m -11 / - TF5B - / -16 3 ✓ Closing fragment
10-28 06:49 40m -10 / - SP6AXW - / -10 2 ✓ Closing fragment
10-28 06:48 40m -8 / - C5R - / -25 3 ✓ Closing fragment
10-28 06:38 40m -6 / - OA4ENG - / - 8 Partial capture
10-22 18:19 40m -6 / - MI7XHT -14 / -22 3 ✓ Closing observed
10-18 20:02 40m -10 / - TF1EM - / -18 8 ✓ Closing fragment
10-18 19:24 40m - / - ON4KBU -10 / - 2 Partial capture
10-18 19:21 40m -12 / -5 PE1NAO -7 / -20 4 ✓ Full exchange observed
10-18 19:16 40m -8 / -14 G0CLH -19 / -11 4 ✓ Full exchange observed
10-18 19:01 40m +1 / -17 M9PXZ -16 / - 3 Partial capture
10-18 18:57 40m -3 / - 5P0T - / - 2 Partial capture
10-05 18:55 40m 0 / - YD4AWV - / - 2 Partial capture
10-05 18:51 40m -4 / - YD4AWV - / - 4 Partial capture
10-05 16:38 80m - / -17 ES8JX 0 / - 2 Partial capture
10-04 19:25 40m - / -19 S51PV -9 / - 3 ✓ Closing fragment
10-04 19:20 40m -3 / - PA0LDE - / -6 3 ✓ Closing fragment
10-04 19:20 40m - / - F5PBG -6 / - 2 Partial capture
10-04 19:19 40m +1 / - OD5ZZ - / -9 2 ✓ Closing fragment
10-02 20:22 40m -2 / - VU3IHP - / - 4 Partial capture
10-02 20:20 40m +1 / - VJ6X - / - 3 Partial capture
10-02 20:17 40m 0 / - UN3P - / - 2 Partial capture
09-21 18:46 40m -8 / - HL3LMS - / - 2 Partial capture
09-21 18:40 40m -12 / - SO100PKP - / +3 2 Partial capture
09-21 18:38 40m -9 / - JF2JRD - / - 3 Partial capture
09-21 18:14 40m - / -12 DL6UM +4 / - 2 ✓ Closing fragment
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

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
170415  -8 1918  EU2ABM IU2UBS JN45 (x2)
143630 -17 1918  OH3SW IU2UBS JN45 (x4)
185600  -8 2207  K2INC IU2UBS JN45 (x4)
185800  -4 2207  LA1PHA IU2UBS JN45 (x5)
10m
UTC    dB Audio  Message
125600  -4 2538  YB2CAR IU2UBS JN45 (x6)
152415 -10 2666  TJ1GD IU2UBS JN45 (x4)
80m
UTC    dB Audio  Message
163815  +0 1506  IU2UBS ES8JX -17 (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

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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