IU5KYZ — 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: JN53

Receiver-side FT8 activity involving IU5KYZ, decoded by SO8OO in southeastern Poland. 99 FT8 messages attributed to this token as transmitter, on 40m, across 6 UTC dates in the available aggregate history. Observed between 2026-09-11 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 99 FT8 messages attributed to IU5KYZ as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

99
Messages attributed
6
UTC dates decoded
15
Active 15-min windows
-11 dB
Estimated median S/N

Bands

40m · 99
First attributed message: 2026-09-11
Last attributed message: 2026-11-05 22:32 UTC

Observed FT8 message patterns

Attributed sample
99 messages
Active dates
6 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-15 to -3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 58, strong (≥ -8 dB) 32.

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 IU5KYZ 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 IU5KYZ

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
JN53 · 75 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,089 km (approx.)
Last such locator decoded
2026-11-05 22:32 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 UTCBandIU5KYZ S/NCounterpartCounterpart S/NMsgsCapture
11-05 21:50 40m -13 / - JA5BDZ - / -12 6 Partial capture
11-05 21:49 40m -14 / - JG3RPL - / -9 2 ✓ Closing fragment
11-05 21:40 40m -10 / - DK8HC - / -12 2 Partial capture
11-05 21:31 40m -14 / - HL1HG - / -12 4 ✓ Closing fragment
11-05 19:48 40m -9 / - UY5QB/A - / -9 3 Partial capture
11-03 21:22 40m -16 / - A71AH - / - 2 Partial capture
11-03 21:18 40m -16 / - BI1AFK - / - 2 Partial capture
11-03 21:17 40m -12 / - EY7BP - / - 2 Partial capture
10-21 19:27 40m - / - G4MHJ -13 / - 2 Partial capture
10-14 21:17 40m - / - EA1IOK -13 / - 5 Partial capture
10-03 23:34 40m - / 0 F5PBG -5 / - 4 Partial capture
10-03 23:32 40m - / -11 EX7CQ -4 / - 4 ✓ Closing fragment
09-22 21:41 40m -3 / - KA1VDZ - / - 2 Partial capture
09-11 21:22 40m -8 / - D44TWO - / - 2 Partial capture
09-11 21:21 40m -7 / - HZ1TT - / - 3 Partial capture
09-11 21:17 40m -10 / - EW8AAC - / - 2 Partial capture
09-11 21:13 40m - / -16 CT7AXN -8 / - 2 ✓ Closing fragment
09-11 20:58 40m -4 / - V51WH - / - 4 Partial capture
09-11 20:55 40m -6 / - DG6NI - / - 2 Partial capture
09-11 20:49 40m -4 / - HZ1TT - / - 10 Partial capture
09-11 20:44 40m -5 / - UR4QWW - / -4 3 ✓ Closing fragment
09-11 19:58 40m -10 / - HZ1TT - / - 2 Partial capture
09-11 19:55 40m -14 / - UA3VVA - / -13 3 ✓ Closing fragment
09-11 19:52 40m -11 / - EC3A - / -6 2 Partial capture
09-11 19:50 40m - / - DK8HC 0 / - 5 Partial capture
09-11 19:50 40m - / -9 F1PBZ -5 / - 2 Partial capture
09-11 19:45 40m +2 / - R3KLE - / - 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
215030 -11 1489  JA5BDZ IU5KYZ -12 (x5)
215430 -13 1489  W3FAY IU5KYZ JN53
215500 -12 1489  W1KOK IU5KYZ JN53
215530 -10 1489  CQ DX IU5KYZ JN53 (x5)
215900 -10 1488  WB3FME IU5KYZ -19
223045 -14 1489  KO4MEX IU5KYZ JN53
223215 -11 1489  N1EDF IU5KYZ JN53

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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