I4IOR — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN54

Receiver-side FT8 activity involving I4IOR, decoded by SO8OO in southeastern Poland. 50 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 10 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-08-21.

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 50 FT8 messages attributed to I4IOR as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (50%), followed by 20 m (44%) and 40 m (6%). Most decodes (84%) fell within the six-hour window 09:00-15:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

50
Messages attributed
10
UTC dates decoded
18
Active 15-min windows
-13 dB
Estimated median S/N

Bands

40m · 3 20m · 22 10m · 25
First attributed message: 2026-06-08
Last attributed message: 2026-08-21 11:45 UTC

Observed FT8 message patterns

Attributed sample
50 messages
Active dates
10 UTC dates
Estimated median S/N
-13 dB
Estimated 10th-90th percentile
-21 to -5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 22, strong (≥ -8 dB) 12.

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 I4IOR 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 I4IOR

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
JN54 · 11 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,013 km (approx.)
Last such locator decoded
2026-08-21 11:44 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 UTCBandI4IOR S/NCounterpartCounterpart S/NMsgsCapture
08-21 11:44 10m +3 / - TN8GD - / -14 3 ✓ Closing fragment
08-19 14:49 10m -14 / - 2E0UMK - / -12 2 ✓ Closing fragment
08-19 14:42 10m -9 / - XQ3SK - / -7 3 ✓ Closing fragment
08-19 14:40 10m -14 / - LU6YR - / -14 2 ✓ Closing fragment
08-16 07:31 20m - / - EB3JT -9 / - 6 Partial capture
08-16 07:30 20m -15 / - V31DL - / -11 3 ✓ Closing fragment
07-24 09:17 10m -10 / - SP5MXW - / +3 3 ✓ Closing fragment
07-22 09:21 10m -10 / - D2UY - / -3 3 ✓ Closing fragment
07-22 08:41 20m -18 / - DK4RH - / -3 2 ✓ Closing fragment
07-21 10:17 20m - / - SP1ZMO -18 / - 2 Partial capture
07-21 10:09 20m -18 / - TF5B - / -24 2 Partial capture
07-21 10:04 20m -11 / - M0YWA - / -20 4 Partial capture
07-21 10:03 20m - / - M8JJS -18 / - 2 Partial capture
07-21 10:01 20m - / - 9A4ZM -2 / - 3 Partial capture
07-21 10:00 20m -8 / - F1PBZ - / -4 2 ✓ Closing fragment
07-21 09:37 10m - / - RL3K -19 / - 3 Partial capture
07-21 09:36 10m -8 / - SV1GYN - / -12 2 ✓ Closing fragment
07-20 09:07 10m -14 / -11 RC5F -7 / - 4 ✓ Closing observed
07-08 09:54 20m -22 / - SP6AXW -19 / -2 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

10m 
UTC    dB Audio  Message
091600 -17 2119  SP9Y I4IOR RR73
091730  -8 1500  SP5MXW I4IOR +03 (x3)
091930  -9 1001  SQ5WBW I4IOR 73
144030 -14 2003  LU6YR I4IOR R-14 (x2)
144230  -9 2038  XQ3SK I4IOR JN54 (x3)
144900 -12 2039  2E0UMK I4IOR -12 (x2)
114415  +1  839  TN8GD I4IOR JN54 (x3)
20m 
UTC    dB Audio  Message
101730 -16 1579  I4IOR SP1ZMO JO73 (x2)
084115 -16 1570  DK4RH I4IOR -03 (x2)
093545 -16  667  CR7BRV I4IOR JN54
072900 -20 1199  VK5IPA I4IOR JN54
073015 -15 1524  V31DL I4IOR JN54 (x3)
073130  -4 1524  I4IOR EB3JT JN01 (x6)

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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