SP3QDU — 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 SP3QDU, decoded by SO8OO in southeastern Poland. 51 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-08-21 and 2026-10-21.
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 51 FT8 messages attributed to SP3QDU as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (92%), followed by 20 m (8%). Several six-hour UTC windows tied for the largest share (92%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (98%); the estimated median was +2 dB.
Overview
Bands
Last attributed message: 2026-10-21 14:10 UTC
Observed FT8 message patterns
- Attributed sample
- 51 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- +2 dB
- Estimated 10th-90th percentile
- -2 to +5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 50.
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 SP3QDU 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 SP3QDU
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
- JO81 · 35 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 379 km (approx.)
- Last such locator decoded
- 2026-10-21 14:09 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 | SP3QDU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-21 14:08 | 40m | +2 / - | GB3RS | - / +6 | 4 | ✓ Closing fragment |
| 10-21 13:57 | 40m | -1 / - | SQ3POU | - / - | 3 | Partial capture |
| 10-21 13:55 | 40m | 0 / +7 | 9A5JU | -4 / - | 5 | ✓ Full exchange observed |
| 10-21 13:53 | 40m | -1 / 0 | MM0CEZ | -18 / -4 | 4 | ✓ Full exchange observed |
| 10-21 13:52 | 40m | +7 / - | OM5ALL | - / - | 2 | Partial capture |
| 10-21 13:50 | 40m | +3 / +5 | IK4FMT | 0 / - | 5 | ✓ Full exchange observed |
| 10-21 13:48 | 40m | +3 / - | HL5BMX | - / - | 4 | Partial capture |
| 10-21 13:44 | 40m | -1 / - | HL5BMX | - / - | 4 | Partial capture |
| 10-21 13:43 | 40m | -2 / +9 | IK0CHU | -9 / +5 | 5 | ✓ Full exchange observed |
| 10-21 13:41 | 40m | -2 / - | UA9JTJ/9 | - / - | 3 | Partial capture |
| 10-21 13:38 | 40m | +3 / - | F4FHM/QRP | - / - | 3 | Partial capture |
| 10-21 13:36 | 40m | - / - | YL3ASK | -12 / - | 2 | Partial capture |
| 10-21 13:33 | 40m | +5 / +2 | DL6EL | +3 / - | 6 | ✓ Full exchange observed |
| 10-21 13:32 | 40m | -2 / - | HF50HSP | -9 / - | 2 | Partial capture |
| 10-21 13:26 | 40m | 0 / -5 | UG4L | -14 / 0 | 6 | ✓ Full exchange observed |
| 10-21 13:25 | 40m | +2 / - | SQ100LKK | - / - | 4 | Partial capture |
| 08-29 15:38 | 20m | - / - | EA3CY | -13 / - | 3 | ✓ Closing fragment |
| 08-29 14:02 | 20m | - / -3 | UA4FEN | +8 / - | 3 | Partial capture |
| 08-29 14:01 | 20m | - / +2 | GB0CL | -10 / - | 2 | ✓ Closing fragment |
| 08-29 08:20 | 20m | - / +2 | F5RRS | -2 / - | 4 | ✓ Closing fragment |
| 08-29 08:07 | 20m | - / -10 | AO5FSB | +9 / - | 3 | ✓ Closing fragment |
| 08-29 07:52 | 20m | - / -10 | S55JU | -11 / - | 2 | ✓ Closing fragment |
| 08-29 07:09 | 20m | - / -14 | YL3PK | -18 / - | 2 | ✓ Closing fragment |
| 08-29 05:40 | 20m | - / - | Z62NS | +4 / - | 2 | ✓ Closing fragment |
| 08-29 05:36 | 20m | - / - | ZL1VAH | -4 / - | 2 | ✓ Closing fragment |
| 08-29 05:25 | 20m | - / -8 | II7MGLE | -4 / - | 2 | Partial capture |
| 08-28 18:58 | 20m | - / -18 | 7X2KF | 0 / - | 2 | Partial capture |
| 08-28 09:31 | 20m | - / -7 | TA2EHI | -11 / - | 2 | ✓ Closing fragment |
| 08-25 04:59 | 20m | - / -14 | CE1KR | 0 / - | 6 | Partial capture |
| 08-24 18:09 | 20m | - / - | IU8TIT | -7 / - | 3 | Partial capture |
| 08-24 17:47 | 20m | - / -2 | 3A2MW | -5 / - | 2 | ✓ Closing fragment |
| 08-24 15:40 | 20m | - / -11 | JG3LGD | -7 / - | 2 | ✓ Closing fragment |
| 08-24 15:22 | 20m | - / -8 | MW7RHR | -6 / - | 6 | ✓ Closing fragment |
| 08-24 11:50 | 20m | - / -9 | YO9PH | -2 / - | 2 | ✓ Closing fragment |
| 08-24 11:10 | 20m | - / -2 | HB0HF | -2 / - | 2 | ✓ Closing fragment |
| 08-24 07:44 | 20m | - / -4 | HB9EFK | +1 / - | 2 | ✓ Closing fragment |
| 08-24 07:31 | 20m | - / -17 | S56EPX | -11 / - | 9 | Partial capture |
| 08-24 06:41 | 20m | - / -12 | Z35T | -1 / - | 2 | ✓ Closing fragment |
| 08-24 04:54 | 20m | - / -12 | HC2GRC | +4 / - | 2 | ✓ Closing fragment |
| 08-23 07:06 | 20m | - / -7 | R9SB | -2 / - | 2 | ✓ Closing fragment |
| 08-23 07:03 | 20m | - / - | RA6ALF | 0 / - | 2 | Partial capture |
| 08-23 07:00 | 20m | - / -2 | F1BHB | 0 / - | 2 | ✓ Closing fragment |
| 08-23 05:08 | 20m | - / -12 | A93MO | -12 / - | 2 | ✓ Closing fragment |
| 08-23 04:58 | 20m | - / 0 | TA6MMI | +3 / - | 2 | ✓ Closing fragment |
| 08-22 08:29 | 20m | - / -14 | 4Z5PT | -9 / - | 2 | ✓ Closing fragment |
| 08-22 07:59 | 20m | +7 / - | PD1DRE | - / -19 | 3 | ✓ Closing fragment |
| 08-22 05:51 | 20m | - / - | R2AL | +4 / - | 2 | Partial capture |
| 08-20 09:36 | 20m | - / -13 | <...> | -14 / - | 2 | Partial capture |
| 08-20 08:36 | 20m | - / +1 | RN2F | -6 / - | 2 | ✓ Closing fragment |
| 08-20 08:15 | 20m | - / - | PE9JAN | -2 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 135345 -18 1236 SP3QDU MM0CEZ +00 135400 -4 1235 MM0CEZ SP3QDU R-04 (x2) 135530 -2 1104 9A5JU SP3QDU JO81 135545 -2 1105 SP3QDU 9A5JU +07 135600 +0 1105 9A5JU SP3QDU R+11 135615 -5 1105 SP3QDU 9A5JU RR73 135630 +1 1105 9A5JU SP3QDU 73 135700 -2 1286 SQ3POU SP3QDU JO81 (x3) 140815 +3 1103 GB3RS SP3QDU JO81 (x4)
UTC dB Audio Message 080830 +10 2296 SP3QDU AO5FSB RR73 082045 -11 2013 SP3QDU F5RRS JN36 (x4) 084900 +7 1290 SP3QDU UF4S -04 094330 -5 2113 SP3QDU RC5F RR73 140100 -8 2117 SP3QDU GB0CL +02 (x2) 140200 +1 2117 SP3QDU UA4FEN -03 (x3) 153800 -15 1864 SP3QDU EA3CY +12 (x3)
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.
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