IU2JMZ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IU2JMZ, decoded by SO8OO in southeastern Poland. 27 FT8 messages attributed to this token as transmitter, on 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-07-07.
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 27 FT8 messages attributed to IU2JMZ as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was +2 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 27 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- +2 dB
- Estimated 10th-90th percentile
- -4 to +3 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 26.
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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with IU2JMZ in decoded directed-looking exchanges:
Most frequent locator attributed to IU2JMZ
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
- JN45 · 10 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,075 km (approx.)
- Last such locator decoded
- 2026-07-07 23:08 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 UTC | Band | IU2JMZ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 07-07 23:08 | 40m | -6 / - | K2H | - / - | 2 | Partial capture |
| 07-07 23:05 | 40m | +1 / - | EA3GXK | - / 0 | 4 | Partial capture |
| 07-07 23:04 | 40m | +3 / +2 | YO9PH | -19 / -5 | 2 | Partial capture |
| 07-07 23:03 | 40m | +2 / - | HA3GX | - / 0 | 2 | ✓ Closing fragment |
| 07-07 23:01 | 40m | +3 / +4 | IQ4JO | +6 / - | 6 | ✓ Full exchange observed |
| 07-07 22:59 | 40m | +2 / - | PD9JPV | - / -16 | 2 | ✓ Closing fragment |
| 07-07 22:57 | 40m | +2 / - | M8KUG | - / -6 | 2 | ✓ Closing fragment |
| 07-07 22:54 | 40m | +2 / - | M0LEX | - / -17 | 2 | ✓ Closing fragment |
| 07-07 22:51 | 40m | -8 / +3 | PD0LBY | -19 / - | 6 | ✓ Full exchange observed |
| 07-07 22:51 | 40m | - / -15 | RN6MA | -8 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 230230 +0 897 CQ IU2JMZ JN45 230245 +8 2733 IU2JMZ IQ4JO JN63 230300 +1 897 HA3GX IU2JMZ +00 (x2) 230400 +6 897 CQ IU2JMZ JN45 (x2) 230430 -19 2134 IU2JMZ YO9PH +02 230445 +3 897 YO9PH IU2JMZ R-05 230530 -20 1735 IU2JMZ LB2YJ JP32 230545 +0 897 EA3GXK IU2JMZ +00 (x4) 230815 -4 1389 K2H IU2JMZ JN45 (x2)
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