SP1905MFK — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SP1905MFK, decoded by SO8OO in southeastern Poland. 855 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-08-02 and 2026-08-29.
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 855 FT8 messages attributed to SP1905MFK as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (65%), followed by 40 m (33%) and 20 m (2%). Several six-hour UTC windows tied for the largest share (90%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (73%); the estimated median was -0.8 dB.
Overview
Bands
Last attributed message: 2026-08-29 20:29 UTC
Observed FT8 message patterns
- Attributed sample
- 855 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- -0.8 dB
- Estimated 10th-90th percentile
- -15 to +8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 81, moderate (-15 to -9 dB) 154, strong (≥ -8 dB) 620.
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 SP1905MFK 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.
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 | SP1905MFK S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-29 20:53 | 80m | - / - | F5MXH | +7 / - | 2 | Partial capture |
| 08-29 20:52 | 80m | - / - | TA1BM | -7 / - | 2 | Partial capture |
| 08-29 20:50 | 80m | - / - | PE9JAN | +1 / - | 3 | Partial capture |
| 08-29 20:28 | 80m | 0 / -1 | DL5OAH | -5 / -11 | 2 | Partial capture |
| 08-29 20:28 | 80m | +6 / - | <...> | -13 / - | 4 | ✓ Closing fragment |
| 08-29 20:26 | 80m | +3 / - | OE5ABL | - / -14 | 3 | Partial capture |
| 08-29 20:25 | 80m | - / - | DL5OAH | -1 / - | 2 | Partial capture |
| 08-29 20:23 | 80m | - / +7 | OM1AN | +4 / - | 2 | Partial capture |
| 08-29 20:22 | 80m | +5 / - | <...> | +8 / - | 3 | ✓ Closing fragment |
| 08-29 20:22 | 80m | - / -3 | DL1NEO | +5 / - | 10 | Partial capture |
| 08-29 20:16 | 80m | -12 / - | IU3ACL | +4 / -16 | 3 | Partial capture |
| 08-29 20:15 | 80m | -4 / - | <...> | -6 / - | 3 | ✓ Closing fragment |
| 08-29 20:13 | 80m | -6 / -11 | DO9SAM | +5 / -2 | 6 | Partial capture |
| 08-29 20:12 | 80m | +1 / - | DK6WS | - / -14 | 2 | Partial capture |
| 08-29 20:12 | 80m | 0 / - | <...> | -7 / - | 3 | ✓ Closing fragment |
| 08-29 20:07 | 80m | +1 / - | SP7OK | - / -8 | 5 | Partial capture |
| 08-29 19:58 | 80m | -1 / - | <...> | +1 / - | 11 | ✓ Closing fragment |
| 08-29 19:47 | 80m | - / - | IU4BJC | -4 / - | 8 | Partial capture |
| 08-29 19:40 | 80m | -9 / - | RA3X | - / - | 3 | Partial capture |
| 08-29 19:35 | 80m | -7 / - | <...> | - / - | 2 | Partial capture |
| 08-29 19:32 | 80m | - / - | SQ3LMR | -2 / - | 3 | Partial capture |
| 08-29 19:30 | 80m | -3 / - | RA3X | - / -15 | 5 | Partial capture |
| 08-29 19:24 | 80m | +6 / - | <...> | +7 / - | 6 | ✓ Closing fragment |
| 08-29 19:18 | 80m | +2 / - | F1NQP | - / -12 | 5 | Partial capture |
| 08-29 19:15 | 80m | - / -18 | ON4APU | -1 / - | 4 | Partial capture |
| 08-29 19:13 | 80m | +4 / -3 | OM0CS | +18 / +1 | 3 | Partial capture |
| 08-29 19:09 | 80m | +13 / +5 | OK1UOZ | +6 / -2 | 7 | Partial capture |
| 08-29 19:06 | 80m | -2 / - | R440L | - / - | 2 | ✓ Closing fragment |
| 08-29 19:04 | 80m | +3 / -5 | DH1JAD | -11 / -20 | 2 | Partial capture |
| 08-29 19:00 | 80m | +4 / - | SP2TQQ | - / -15 | 4 | Partial capture |
| 08-29 18:58 | 80m | -2 / -12 | SP6SR | +11 / -9 | 2 | Partial capture |
| 08-29 18:58 | 80m | +3 / - | <...> | +6 / - | 25 | ✓ Closing fragment |
| 08-29 18:48 | 80m | +4 / - | ON4MGV | - / -18 | 2 | Partial capture |
| 08-29 18:47 | 80m | +1 / - | <...> | +2 / - | 2 | ✓ Closing fragment |
| 08-29 18:47 | 80m | +4 / -10 | R7BI | 0 / -15 | 2 | Partial capture |
| 08-29 18:42 | 80m | -2 / - | <...> | +3 / - | 3 | ✓ Closing fragment |
| 08-29 18:41 | 80m | +2 / - | LZ2VQ | - / -11 | 2 | Partial capture |
| 08-23 19:57 | 80m | - / -11 | IQ4JO | -2 / - | 3 | Partial capture |
| 08-23 19:55 | 80m | - / - | SP6TID | -6 / - | 4 | Partial capture |
| 08-23 19:44 | 80m | - / - | IK1LJO | -24 / - | 2 | Partial capture |
| 08-23 19:40 | 80m | +4 / - | <...> | 0 / - | 2 | ✓ Closing fragment |
| 08-23 19:39 | 80m | +12 / +2 | SP7PGK | +8 / +1 | 3 | Partial capture |
| 08-23 19:35 | 80m | +7 / - | <...> | +10 / - | 3 | ✓ Closing fragment |
| 08-23 19:32 | 80m | +6 / +10 | LY3QR | -23 / -20 | 7 | Partial capture |
| 08-23 19:29 | 80m | +2 / -8 | DL7COC | -15 / -19 | 4 | Partial capture |
| 08-23 19:26 | 80m | - / - | F6FEG | -11 / - | 4 | Partial capture |
| 08-23 19:26 | 80m | +8 / -3 | SQ9ACW | +3 / -16 | 4 | Partial capture |
| 08-23 19:24 | 80m | - / - | ON1BMM | -3 / - | 4 | Partial capture |
| 08-23 19:24 | 80m | +7 / - | <...> | +1 / - | 9 | ✓ Closing fragment |
| 08-23 19:23 | 80m | +3 / - | SP5DFK | -1 / -19 | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 202830 +0 1462 DL5OAH SP1905MFK -11 202845 -5 1463 SP1905MFK DL5OAH R-01 202845 +4 2773 SP1905MFK DL1NEO JN59 202900 +3 1462 <...> SP1905MFK RR73 202915 -10 1463 SP1905MFK <...> 73 202930 +8 1462 CQ SP1905MFK 203215 +11 2760 SP1905MFK 5P1KZX JO57 203245 -8 1471 SP1905MFK DL5EBS JO31 205015 -2 2769 SP1905MFK PE9JAN JO22 (x3) 205215 -4 2771 SP1905MFK TA1BM KM39 (x2) 205300 +5 2784 SP1905MFK F5MXH JN07 (x2)
UTC dB Audio Message 083200 -10 1459 CQ SP1905MFK 083300 -7 1459 <...> SP1905MFK RR73 083330 -9 1459 CQ SP1905MFK 083345 -4 1458 SP6FME SP1905MFK -06 083400 -8 1459 CQ SP1905MFK 083530 -10 1459 <...> SP1905MFK RR73 083600 -5 1459 CQ SP1905MFK 083630 -6 1459 <...> SP1905MFK (x2) 083715 -9 1459 DJ0MAB SP1905MFK -13 (x3) 084930 -17 1648 SP1905MFK DL2AMM JO50 085030 -22 1395 SP1905MFK DJ0BS R-07 085115 -19 2284 SP1905MFK OE3ZIO R-02
UTC dB Audio Message 193045 +0 987 SP1905MFK UT3UZ -03 (x7) 193345 -17 1732 SP1905MFK OE2RXN R-14 194000 -18 1339 SP1905MFK US3LX R+07 194030 -16 1339 8D81RI SP1905MFK 73 184015 -13 1504 SP1905MFK <...> 73 (x5)
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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