F4JXY — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving F4JXY, decoded by SO8OO in southeastern Poland. 5 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-07-02 and 2026-09-07.
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 5 FT8 messages attributed to F4JXY as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (80%), followed by 20 m (20%). In this small sample, the estimated median decoder S/N was -18 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-07 05:31 UTC
Observed FT8 message patterns
- Attributed sample
- 5 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -18 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 0.
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 F4JXY in decoded directed-looking exchanges:
Most frequent locator attributed to F4JXY
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
- JN03 · 2 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,732 km (approx.)
- Last such locator decoded
- 2026-09-07 05:31 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 | F4JXY S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-09 06:06 | 40m | - / - | G3RLX | -16 / - | 2 | Partial capture |
| 09-08 06:35 | 60m | - / - | DK8EW | -3 / - | 4 | Partial capture |
| 09-07 05:27 | 40m | -18 / - | SP5EXA | -4 / -4 | 4 | Partial capture |
| 09-07 05:25 | 40m | -19 / -14 | EU4U | +4 / -8 | 6 | ✓ Full exchange observed |
| 08-31 06:55 | 20m | - / - | DL1YS | -3 / - | 4 | Partial capture |
| 08-31 06:42 | 20m | - / - | UA3ZMQ | +13 / - | 4 | Partial capture |
| 07-27 17:33 | 20m | - / - | EA5W | -21 / - | 3 | Partial capture |
| 07-15 11:21 | 20m | - / - | PD9JPV | -24 / - | 2 | ✓ Closing fragment |
| 07-15 11:19 | 20m | - / +3 | DL6EL | -8 / - | 2 | Partial capture |
| 07-02 13:32 | 20m | -20 / - | MW0SGU | -21 / -17 | 2 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 052745 -6 2635 F4JXY SP5EXA KO02 (x2) 052900 -18 1857 SP5EXA F4JXY -04 052915 -3 2635 F4JXY SP5EXA KO02 053130 -17 1857 CQ F4JXY JN03 053645 -2 1672 F4JXY IK2YYO JN55 070145 -17 2066 F4JXY F4FSY -13 060530 -12 1152 F4JXY PA2RO 73 060630 -15 1113 F4JXY G3RLX IO93 (x2) 061030 -21 1996 F4JXY F4HQO JO10 064845 -6 1857 F4JXY OK1CT JN69 064845 -17 2356 F4JXY F4EMG JO00 053015 -5 1857 F4JXY US2YW KN28 053215 -4 2301 F4JXY R2EA -08
UTC dB Audio Message 063515 -4 2167 F4JXY DK8EW JO62 (x4)
UTC dB Audio Message 111930 -10 746 F4JXY DL6EL R+03 112130 -24 1893 F4JXY PD9JPV JO22 (x2) 173330 -22 1507 F4JXY EA5W IM97 (x3) 064230 +12 959 F4JXY UA3ZMQ KO90 (x5) 065500 -2 858 F4JXY DL1YS JO40 (x4)
UTC dB Audio Message 050645 -14 2488 F4JXY F8ATM JN03
UTC dB Audio Message 120400 -24 1593 F4JXY DO3VS -17 143915 -9 1032 F4JXY DN9GU JO40
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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