AJ4XX — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving AJ4XX, decoded by SO8OO in southeastern Poland. 21 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-23 and 2026-09-13.
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 21 FT8 messages attributed to AJ4XX as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (90%), followed by 80 m (10%). In this small sample, the estimated median decoder S/N was -13 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-13 00:44 UTC
Observed FT8 message patterns
- Attributed sample
- 21 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -13 dB
- Estimated 10th-90th percentile
- -24 to -9 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 16, 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 AJ4XX in decoded directed-looking exchanges:
Most frequent locator attributed to AJ4XX
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
- FM17 · 11 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 7,470 km (approx.)
- Last such locator decoded
- 2026-09-13 00:44 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 UTC | Band | AJ4XX S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-13 00:45 | 80m | - / 0 | CT7AUT | -14 / - | 2 | ✓ Closing fragment |
| 09-13 00:42 | 80m | -24 / -12 | HI8JCD | -24 / - | 3 | ✓ Closing observed |
| 08-23 22:40 | 20m | -10 / -5 | SV5BYP | -6 / -3 | 5 | ✓ Full exchange observed |
| 08-23 22:37 | 20m | -10 / -14 | TJ1GD | -15 / - | 7 | Partial capture |
| 08-23 22:33 | 20m | -12 / -15 | IW5DLY | -10 / +3 | 7 | ✓ Full exchange observed |
| 08-23 22:24 | 20m | -14 / - | F5RAV | - / -6 | 2 | ✓ Closing fragment |
| 08-23 22:21 | 20m | -13 / - | IU3QWQ | 0 / - | 2 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 004215 -24 1810 AJ4XX HI8JCD -12 (x2) 004300 -24 1879 HI8JCD AJ4XX 73 004400 -24 1879 DO9BAU AJ4XX FM17 004515 -15 1492 AJ4XX CT7AUT R+00 (x2)
UTC dB Audio Message 223430 -12 983 AJ4XX IW5DLY R-15 223445 -13 984 IW5DLY AJ4XX RR73 223500 -7 983 AJ4XX IW5DLY 73 223715 -10 984 TJ1GD AJ4XX FM17 (x4) 223900 -16 989 AJ4XX TJ1GD -14 223915 -11 984 TJ1GD AJ4XX FM17 224015 -11 983 SV5BYP AJ4XX FM17 224030 -14 989 AJ4XX TJ1GD -14 224030 -3 1992 AJ4XX SV5BYP -05 224045 -10 983 SV5BYP AJ4XX R-03 224100 -9 1992 AJ4XX SV5BYP RR73 224115 -10 984 SV5BYP AJ4XX 73
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.
CW
No CW receptions recorded for this callsign in the last 30 days.
Explore CW reception at SO8OOFT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee