IU8RHZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JM89

Receiver-side FT8 activity involving IU8RHZ, decoded by SO8OO in southeastern Poland. 49 FT8 messages attributed to this token as transmitter, on 40m, 10m, across 6 UTC dates in the available aggregate history. Observed between 2026-08-12 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 49 FT8 messages attributed to IU8RHZ 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 (90%), followed by 10 m (10%). Most decodes (61%) fell within the six-hour window 11:00-17:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's moderate S/N range (61%); the estimated median was -13 dB.

Overview

49
Messages attributed
6
UTC dates decoded
12
Active 15-min windows
-13 dB
Estimated median S/N

Bands

40m · 44 10m · 5
First attributed message: 2026-08-12
Last attributed message: 2026-09-20 14:36 UTC

Observed FT8 message patterns

Attributed sample
49 messages
Active dates
6 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-20 to -9 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 15, moderate (-15 to -9 dB) 30, strong (≥ -8 dB) 4.

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 IU8RHZ 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 IU8RHZ

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
JM89 · 30 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,220 km (approx.)
Last such locator decoded
2026-09-20 14:36 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 UTCBandIU8RHZ S/NCounterpartCounterpart S/NMsgsCapture
09-20 14:33 40m -14 / - SQ100PKP - / -19 4 Partial capture
09-20 14:26 40m -13 / - SQ100PKP - / +3 2 Partial capture
09-19 15:03 40m -7 / -3 IK4MBN -16 / -4 5 ✓ Full exchange observed
09-19 15:00 40m -11 / - SQ100PKP - / - 3 Partial capture
09-18 13:56 40m - / - DL9KM -8 / - 6 Partial capture
09-18 13:34 40m - / -15 SQ100PKP +2 / - 3 Partial capture
09-17 16:05 40m - / -15 HA7TM +8 / - 4 ✓ Closing fragment
09-17 15:55 40m - / -13 DH9ET -4 / - 3 Partial capture
09-17 15:52 40m - / - HA7TM +16 / - 3 Partial capture
09-15 23:11 40m -11 / - DF1DJ - / -11 4 ✓ Closing fragment
09-15 23:08 40m -10 / - UA2FFD - / - 3 Partial capture
09-15 23:03 40m -12 / - UA2FFD - / - 2 Partial capture
09-15 23:00 40m -16 / - SM7TZK - / -19 3 ✓ Closing fragment
09-15 16:49 40m - / -12 HG8LXL -3 / - 4 ✓ Closing fragment
09-15 16:25 40m -19 / - A41MO - / -8 2 ✓ Closing fragment
09-13 17:57 40m - / - HG8LXL -2 / - 3 Partial capture
09-13 17:14 40m - / -24 EX7CQ 0 / - 2 ✓ Closing fragment
09-12 17:58 40m - / -15 YO4NT +11 / - 2 Partial capture
09-12 17:55 40m - / -4 HG8LXL -7 / - 3 Partial capture
09-05 16:21 40m -13 / - ON1DGN - / - 2 Partial capture
09-05 16:19 40m - / - SP6FME -3 / - 2 Partial capture
09-05 16:18 40m - / - PE1NPS -8 / - 2 Partial capture
09-05 16:14 40m - / -16 F1PBZ -4 / - 3 Partial capture
09-05 16:14 40m - / -14 UA3GDJ +2 / - 2 Partial capture
09-05 16:14 40m - / - DL6UM +2 / - 6 Partial capture
09-05 16:13 40m - / - S51PV -11 / - 7 Partial capture
09-05 16:07 40m - / - DL6UM +1 / - 5 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
150345  -9 1539  IK4MBN IU8RHZ R-04
150430 -16 1379  IU8RHZ IK4MBN RR73
150445  -3 1539  IK4MBN IU8RHZ 73
150500 -20 1791  IU8RHZ PE1NPS JO22
150515 -13 1539  SQ100PKP IU8RHZ JM89
142415 -13 1540  RA4ADF/P IU8RHZ JM89
142615 -12 1539  SQ100PKP IU8RHZ JM89
142730 -14 1448  IU8RHZ I3/DG9MDM
142745 -14 1539  SQ100PKP IU8RHZ R+03
143315 -15 1540  RA4ADF/P IU8RHZ JM89
143345 -13 1539  SQ100PKP IU8RHZ JM89 (x4)
143645 -14 1539  <II6IALU> IU8RHZ JM89
10m 
UTC    dB Audio  Message
113545 -24 1595  CQ IU8RHZ JM89                        a1
113615 -24 1596  OK2TPT IU8RHZ -13
113845 -21 1596  DL6UM IU8RHZ RR73
114245 -19 1596  CQ IU8RHZ JM89
114315 -23 1596  DN9ESA IU8RHZ -05

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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