IR0IADU — 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: Sardinia

Receiver-side FT8 activity involving IR0IADU, decoded by SO8OO in southeastern Poland. 517 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 10 UTC dates in the available aggregate history. Observed between 2026-09-11 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 517 FT8 messages attributed to IR0IADU as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (96%), followed by 80 m (4%). Most decodes (83%) fell within the six-hour window 19:00-01:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (63%); the estimated median was -6 dB.

Overview

517
Messages attributed
10
UTC dates decoded
58
Active 15-min windows
-6 dB
Estimated median S/N

Bands

80m · 19 40m · 498
First attributed message: 2026-09-11
Last attributed message: 2026-09-20 14:01 UTC

Observed FT8 message patterns

Attributed sample
517 messages
Active dates
10 UTC dates
Estimated median S/N
-6 dB
Estimated 10th-90th percentile
-15 to +3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 48, moderate (-15 to -9 dB) 143, strong (≥ -8 dB) 326.

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 IR0IADU 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.

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 UTCBandIR0IADU S/NCounterpartCounterpart S/NMsgsCapture
09-20 21:41 40m - / -19 G0ANS -8 / - 2 Partial capture
09-20 13:51 40m - / -3 IZ5CMG -8 / - 4 Partial capture
09-20 06:20 40m - / +7 DK3MM -7 / - 2 Partial capture
09-20 06:00 40m - / - DL1FAM +7 / - 3 Partial capture
09-19 22:53 40m +4 / - <...> +6 / - 3 ✓ Closing fragment
09-19 22:50 40m +2 / - <...> - / - 2 ✓ Closing fragment
09-19 22:46 40m +4 / - <...> 0 / - 3 ✓ Closing fragment
09-19 22:43 40m +7 / - <...> - / - 2 ✓ Closing fragment
09-19 22:41 40m +8 / - EA5TC - / -4 2 Partial capture
09-19 22:36 40m - / -1 OH3NDH -3 / - 2 Partial capture
09-19 22:32 40m - / -10 M0PEL -8 / - 2 Partial capture
09-19 22:29 40m -1 / - EA5HM -16 / +7 3 Partial capture
09-19 22:27 40m -3 / - <...> -4 / - 8 ✓ Closing fragment
09-19 22:24 40m +4 / - WY5I - / -4 2 Partial capture
09-19 22:20 40m +4 / - <...> - / - 4 ✓ Closing fragment
09-19 21:52 40m -5 / - DM5KN -10 / -16 3 Partial capture
09-19 21:50 40m -8 / - <...> 0 / - 9 ✓ Closing fragment
09-19 18:16 40m -3 / 0 S57CT -3 / -6 3 Partial capture
09-19 15:22 40m - / -9 YO5IB -15 / - 3 Partial capture
09-19 15:12 40m - / - SP90K -8 / - 2 Partial capture
09-19 15:00 40m -10 / - SP5EJG - / 0 2 Partial capture
09-19 14:27 40m - / - SP90K -5 / - 26 Partial capture
09-19 09:11 40m - / - IK3VVC -9 / - 3 Partial capture
09-19 08:35 40m - / - <...> -6 / - 2 ✓ Closing fragment
09-19 08:35 40m - / -6 YO3GNF -14 / - 6 Partial capture
09-19 08:28 40m - / - <...> +4 / - 2 ✓ Closing fragment
09-19 08:28 40m - / -17 OK1ACE +3 / - 6 Partial capture
09-19 08:26 40m - / -13 DK2FM -2 / - 2 Partial capture
09-19 08:19 40m - / - <...> -5 / - 3 ✓ Closing fragment
09-19 06:08 40m - / -8 SP3SX -4 / - 2 Partial capture
09-18 21:26 40m -4 / - DL3MIB - / -4 2 Partial capture
09-18 21:24 40m -3 / - <...> -2 / - 7 ✓ Closing fragment
09-18 21:23 40m +1 / - PE1NPS 0 / 0 2 Partial capture
09-18 21:21 40m -9 / -15 OZ5AGJ -3 / -15 7 Partial capture
09-18 21:18 40m -14 / -2 HB9CNU -20 / -14 3 Partial capture
09-18 21:12 40m -5 / - <...> -19 / - 9 ✓ Closing fragment
09-18 21:11 40m -8 / - G1ZHD -13 / -12 2 Partial capture
09-18 21:06 40m -4 / - JA1SJV - / -21 2 Partial capture
09-18 21:04 40m - / - IZ4EKI -14 / - 2 Partial capture
09-18 21:03 40m +3 / - IU1TKQ -4 / -8 3 Partial capture
09-18 21:03 40m -4 / - <...> - / - 2 ✓ Closing fragment
09-18 20:57 40m - / - PE1NPS -4 / - 2 Partial capture
09-18 20:55 40m -7 / - ON1BMM -8 / -1 2 Partial capture
09-18 20:52 40m -6 / - <...> -20 / - 4 ✓ Closing fragment
09-18 20:51 40m -13 / +6 DL8MRE -2 / -10 2 Partial capture
09-18 20:47 40m -4 / - CT1BFP - / +1 3 Partial capture
09-18 20:43 40m - / - IU1TKQ -5 / - 3 Partial capture
09-18 20:38 40m -1 / - JA1SJV - / -16 2 Partial capture
09-18 20:35 40m -6 / - <...> - / - 5 ✓ Closing fragment
09-18 20:32 40m -8 / -11 G1ZHD -16 / -6 6 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
234445  +4 1134  IR0IADU HB9ELE -04
060015  +8 1773  IR0IADU DL1FAM JN49 (x3)
062030  -7 1977  IR0IADU DK3MM JN58 (x2)
080415 -15 1771  IR0IADU OM0MR R-13
135115  -9 1975  IR0IADU IZ5CMG JN53 (x4)
140130 -22 1545  M0GWC IR0IADU -01
143745 -12 2681  IR0IADU SP2TQQ JO94
214145  -6 1553  IR0IADU G0ANS -19 (x2)
80m 
UTC    dB Audio  Message
211800 -13 1441  IR0IADU IK6GTF JN72 (x2)
211845  -1 2661  IR0IADU 9A7SFQ JN75
211900 -16 1441  IR0IADU IK6GTF JN72
211915  -5 2661  IR0IADU 9A7SFQ R-09
211930 -22 1441  IR0IADU IK6GTF JN72 (x6)
225415  +4 2660  IR0IADU F1PBZ +00
233415 +12 1443  IR0IADU YO8RSL KN37 (x2)
190630  -6 2661  IR0IADU OZ1A +02
20m 
UTC    dB Audio  Message
134215 -18 2377  IR0IADU <...> 73 (x2)

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

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