IZ0FUW — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Italy Most frequent locator attributed to this token: JN63

Receiver-side FT8 activity involving IZ0FUW, decoded by SO8OO in southeastern Poland. 142 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-08-29 and 2026-10-01.

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 142 FT8 messages attributed to IZ0FUW as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (97%), followed by 20 m (3%). Several six-hour UTC windows tied for the largest share (84%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (96%); the estimated median was -1 dB.

Overview

142
Messages attributed
4
UTC dates decoded
13
Active 15-min windows
-1 dB
Estimated median S/N

Bands

First attributed message: 2026-08-29
Last attributed message: 2026-10-01 17:49 UTC

Observed FT8 message patterns

Attributed sample
142 messages
Active dates
4 UTC dates
Estimated median S/N
-1 dB
Estimated 10th-90th percentile
-7 to +4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 136.

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 IZ0FUW

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
JN63 · 44 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
979 km (approx.)
Last such locator decoded
2026-10-01 17:29 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 UTCBandIZ0FUW S/NCounterpartCounterpart S/NMsgsCapture
10-01 17:48 40m -4 / - 7X4MW - / -6 2 Partial capture
10-01 17:45 40m 0 / -12 HZ1KS -19 / -5 4 Partial capture
10-01 17:30 40m 0 / -4 IU4PPL -4 / -10 5 ✓ Full exchange observed
10-01 17:29 40m -1 / - A41KB - / -16 2 Partial capture
09-30 21:28 40m +1 / - PD3LR -11 / -12 5 ✓ Closing observed
09-30 21:27 40m 0 / - DK1RWR - / -7 2 ✓ Closing fragment
09-30 21:27 40m - / -13 EC3A -13 / - 4 ✓ Closing fragment
09-30 21:25 40m +4 / - SP7TF - / -10 2 ✓ Closing fragment
09-30 21:22 40m +1 / - YC2BUZ - / -18 3 Partial capture
09-30 21:18 40m +1 / -12 PD0LBY -6 / -11 4 ✓ Full exchange observed
09-30 21:17 40m - / - RZ4FWA -15 / - 3 Partial capture
09-30 21:17 40m - / - DK8HC -12 / - 4 Partial capture
09-30 21:16 40m +3 / - TA3XEE - / -19 3 ✓ Closing fragment
09-30 21:05 40m +1 / - JJ2IJU - / -17 3 Partial capture
09-30 21:03 40m -1 / - VE2KTF - / -17 2 ✓ Closing fragment
09-30 14:26 40m -4 / -12 YL3AKH +5 / -10 5 ✓ Full exchange observed
09-30 14:21 40m -7 / -1 UX7QV +5 / -5 4 ✓ Full exchange observed
09-30 14:17 40m -7 / - ON5ACO - / -16 2 ✓ Closing fragment
09-30 14:12 40m -6 / - F1SYH - / -8 3 Partial capture
09-30 14:08 40m -11 / +8 OE3FVU -6 / -10 5 ✓ Full exchange observed
09-29 17:14 40m -3 / +9 SV9/OM1ARH +1 / -9 2 Partial capture
09-29 17:05 40m +3 / - BG4UCZ - / -19 5 Partial capture
09-29 17:03 40m 0 / - C31HS - / - 2 Partial capture
09-29 17:01 40m +1 / - ZS6KBS - / -22 2 ✓ Closing fragment
09-29 16:58 40m +4 / - VJ6X - / -18 4 ✓ Closing fragment
09-29 16:56 40m -2 / -11 TA7MMI -2 / -11 4 ✓ Full exchange observed
09-29 16:50 40m +3 / +6 F6BHK 0 / -3 5 ✓ Full exchange observed
09-29 16:44 40m 0 / - BG4UCZ - / -22 6 Partial capture
09-29 16:42 40m -4 / - IU8STX - / -15 2 Partial capture
09-29 16:41 40m -3 / - 4X5CG -5 / -9 2 Partial capture
09-29 16:38 40m +1 / -10 US2YW +14 / -6 6 ✓ Full exchange observed
09-29 16:37 40m -2 / -4 UC6D +15 / -3 3 Partial capture
09-29 16:35 40m -2 / - DL9KM -2 / -2 4 ✓ Closing observed
09-29 16:31 40m 0 / -19 UB4CJS -15 / - 4 ✓ Closing observed
09-29 16:31 40m +2 / +4 SV1EKI -10 / -8 5 ✓ Full exchange observed
09-29 16:29 40m +1 / - IZ8MCG - / -5 3 ✓ Closing fragment
09-29 16:25 40m -2 / -2 HA7TM +20 / +1 5 ✓ Full exchange observed
09-29 16:24 40m +3 / - EA4IFO - / -8 2 ✓ Closing fragment
09-29 16:22 40m -4 / - IZ8PPI - / -13 2 ✓ Closing fragment
09-29 16:21 40m -2 / - EA1C - / -1 2 ✓ Closing fragment
09-29 16:18 40m +1 / - YD2DFO - / -15 2 Partial capture
09-29 16:16 40m +2 / -4 9A4ZM +1 / -3 5 ✓ Full exchange observed
09-29 16:15 40m 0 / -6 RC9WC -10 / -9 4 ✓ Full exchange observed
09-29 16:13 40m -2 / - YB2TTM - / -15 2 Partial capture
09-29 16:12 40m -6 / - SV9/OM1ARH - / -13 3 Partial capture
08-29 18:37 20m +18 / - RI1FJL - / 0 4 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
212930 -14 1261  IZ0FUW EC3A -10 (x2)
172915  -2 2783  A41KB IZ0FUW JN63 (x2)
173030  -6 2782  IZ0FUW IU4PPL JN54
173045  +3 2783  IU4PPL IZ0FUW -10
173100  -4 2782  IZ0FUW IU4PPL R-04
173115  -2 2783  IU4PPL IZ0FUW RR73
173130  -1 2782  IZ0FUW IU4PPL 73
174500  +0 2782  HZ1KS IZ0FUW -05
174545 -17 1396  IZ0FUW HZ1KS R-12 (x3)
174800  -5 2783  7X4MW IZ0FUW -06 (x2)
20m
UTC    dB Audio  Message
183745 +12 2797  RI1FJL IZ0FUW JN63 (x4)

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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