SP7TF — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SP7TF, decoded by SO8OO in southeastern Poland. 4,703 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 112 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-05.
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 4,703 FT8 messages attributed to SP7TF as the transmitting token by decoded message structure across 112 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (98%), followed by 160 m (1%) and 80 m (1%). Most decodes (76%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8.5 dB.
Overview
Bands
Last attributed message: 2026-10-05 16:38 UTC
Observed FT8 message patterns
- Attributed sample
- 4,703 messages
- Active dates
- 112 UTC dates
- Estimated median S/N
- -8.5 dB
- Estimated 10th-90th percentile
- -18 to +2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 842, moderate (-15 to -9 dB) 1,505, strong (≥ -8 dB) 2,356.
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 SP7TF 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 SP7TF
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
- KO02 · 109 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 290 km (approx.)
- Last such locator decoded
- 2026-10-01 04:22 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 | SP7TF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-06 17:52 | 40m | - / -7 | M1KAC | -8 / - | 2 | ✓ Closing fragment |
| 10-06 17:45 | 40m | - / -1 | YO3VPT | -14 / - | 2 | ✓ Closing fragment |
| 10-06 17:37 | 40m | - / -9 | YO3AI | -4 / - | 2 | ✓ Closing fragment |
| 10-06 17:28 | 40m | - / - | DB2OE | +8 / - | 2 | ✓ Closing fragment |
| 10-06 06:10 | 40m | - / +5 | HB9SPACE | -6 / - | 2 | Partial capture |
| 10-06 06:00 | 40m | - / -2 | HB9SPACE | -4 / - | 2 | Partial capture |
| 10-06 05:32 | 40m | - / -2 | HB9ILY | -14 / - | 2 | Partial capture |
| 10-05 23:44 | 40m | - / -17 | AN5CV | -13 / - | 5 | Partial capture |
| 10-05 23:16 | 40m | - / -22 | AN5CV | -16 / - | 4 | Partial capture |
| 10-05 22:43 | 40m | - / -6 | M9SND | -14 / - | 2 | ✓ Closing fragment |
| 10-05 22:13 | 40m | - / -15 | AO5CV | -10 / - | 2 | ✓ Closing fragment |
| 10-05 19:46 | 40m | - / -6 | M8JYD | -10 / - | 2 | ✓ Closing fragment |
| 10-05 19:40 | 40m | - / -18 | EA5KE | 0 / - | 5 | Partial capture |
| 10-05 18:01 | 40m | - / -12 | F4JTP | -3 / - | 2 | ✓ Closing fragment |
| 10-05 17:08 | 40m | - / -12 | DL1GP | -6 / - | 2 | ✓ Closing fragment |
| 10-05 16:38 | 40m | +12 / -4 | DM8ITZ | +6 / - | 2 | ✓ Closing observed |
| 10-05 16:33 | 40m | -4 / - | RN3KY | - / -18 | 3 | Partial capture |
| 10-05 16:30 | 40m | -12 / - | SV7CFC | -2 / -15 | 3 | ✓ Closing observed |
| 10-05 15:37 | 40m | +5 / +3 | UW5ZO | +2 / -11 | 4 | ✓ Full exchange observed |
| 10-05 15:35 | 40m | -9 / - | RA3XFR | - / -9 | 2 | ✓ Closing fragment |
| 10-05 15:24 | 40m | -10 / - | OH5DJZ | - / -19 | 2 | ✓ Closing fragment |
| 10-05 15:11 | 40m | - / -15 | RX6LG | -5 / - | 2 | ✓ Closing fragment |
| 10-05 15:07 | 40m | -2 / - | SQ2JAD | - / -12 | 2 | ✓ Closing fragment |
| 10-05 08:53 | 40m | -3 / - | UA3IFH | - / -14 | 2 | ✓ Closing fragment |
| 10-05 08:10 | 40m | -8 / +8 | SP5TMA | -11 / -11 | 4 | ✓ Full exchange observed |
| 10-05 07:51 | 40m | -12 / - | R2ATY | - / -18 | 2 | ✓ Closing fragment |
| 10-05 07:46 | 40m | 0 / -4 | SP9WZU | -6 / -22 | 4 | ✓ Full exchange observed |
| 10-05 07:17 | 40m | -9 / -7 | OK4SU | -6 / - | 3 | ✓ Closing observed |
| 10-05 06:49 | 40m | -11 / -13 | DA125RH | -17 / -17 | 2 | Partial capture |
| 10-05 05:49 | 40m | - / 0 | S57BTI | +1 / - | 4 | ✓ Closing fragment |
| 10-05 05:33 | 40m | - / -8 | UA3IHJ | -4 / - | 2 | ✓ Closing fragment |
| 10-05 05:02 | 40m | - / -3 | AO5CV | -6 / - | 5 | ✓ Closing fragment |
| 10-05 00:15 | 40m | - / -11 | ON3BSQ | -10 / - | 2 | ✓ Closing fragment |
| 10-04 23:02 | 40m | - / 0 | IU6WUU | -4 / - | 2 | Partial capture |
| 10-04 21:06 | 40m | - / -9 | I2YFL | +4 / - | 2 | ✓ Closing fragment |
| 10-04 20:14 | 40m | - / +3 | M8VGU | -12 / - | 4 | Partial capture |
| 10-04 20:05 | 40m | - / - | IK0XBX | -5 / - | 3 | ✓ Closing fragment |
| 10-04 19:40 | 40m | - / -5 | DC1RT | 0 / - | 2 | ✓ Closing fragment |
| 10-04 18:37 | 40m | - / -19 | PA3GYF | -11 / - | 2 | Partial capture |
| 10-04 11:49 | 10m | - / -6 | 7Z1BQ | -16 / - | 2 | ✓ Closing fragment |
| 10-04 11:36 | 10m | - / -14 | CR7BRV | +2 / - | 2 | ✓ Closing fragment |
| 10-04 10:39 | 40m | -17 / +5 | SP8GKE | -3 / -8 | 3 | Partial capture |
| 10-04 06:14 | 40m | - / -6 | ER1PL | -14 / - | 2 | ✓ Closing fragment |
| 10-04 06:07 | 40m | - / -2 | DK3MM | -12 / - | 2 | ✓ Closing fragment |
| 10-04 05:31 | 40m | - / -9 | RV6LRE | -1 / - | 3 | ✓ Closing fragment |
| 10-04 05:11 | 40m | - / +6 | PD7JVW | -16 / - | 2 | ✓ Closing fragment |
| 10-04 04:54 | 40m | - / +2 | F4HSB | -10 / - | 2 | ✓ Closing fragment |
| 10-04 04:51 | 40m | - / - | M0CKX | -16 / - | 6 | Partial capture |
| 10-04 03:25 | 40m | - / -8 | EA5IBM | -8 / - | 2 | ✓ Closing fragment |
| 10-03 23:12 | 40m | - / +3 | F5MAG | -4 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 040245 -9 642 SP7TF DB4SZ R-15 053245 -20 2371 SP7TF HB9ILY R-02 (x2) 060000 -1 2232 SP7TF HB9SPACE R-02 (x4) 172815 +11 676 SP7TF DB2OE R+19 (x2) 173745 -4 1598 SP7TF YO3AI R-09 (x2) 174530 -13 2326 SP7TF YO3VPT R-01 (x2) 175230 -7 446 SP7TF M1KAC R-07 (x2)
UTC dB Audio Message 115045 -1 422 SP7TF DA6JH R-03 (x2) 133515 -10 816 SP7TF OZ/KD0NDU R-09 131215 +0 2557 SP7TF IU2IKT R-04 (x2) 132900 +9 1234 SP7TF LZ1EV R-24 (x2) 134845 -20 1157 SP7TF <...> R+03 (x2) 135345 -21 1985 SP7TF HB9PAE 73 145915 -5 1758 SP7TF II7MGBT R+06 113630 +6 709 SP7TF CR7BRV R-14 (x2) 114945 -17 1162 SP7TF 7Z1BQ R-06 (x2)
UTC dB Audio Message 041700 -8 2107 <PJ2/W4IPC> SP7TF KO02 (x3) 041830 -7 2107 RD7X/QRP SP7TF KO02 041900 +5 2107 <PJ2/W4IPC> SP7TF KO02 (x2) 042030 +7 1821 TM47CDXC SP7TF KO02 (x4) 042230 +4 1821 <PJ2/W4IPC> SP7TF KO02 042245 -14 1407 SP7TF PJ2/W4IPC -16 042300 -6 1821 PJ2/W4IPC SP7TF R-11 042445 -12 1943 SP7TF G0BLB IO81 (x2)
UTC dB Audio Message 160145 +11 1120 SP7TF RW6A/P R-03 (x2) 170400 -12 1538 SP7TF M7KFM R+14 (x5) 171930 -2 471 SP7TF F4IFO R-14 (x2) 172345 -10 1166 SP7TF F1POK 73 (x2) 174515 -8 1697 SP7TF M7KFM R+02 (x2) 174645 +4 2244 SP7TF G4DBW JO01 (x2)
UTC dB Audio Message 194015 +3 1337 RI1FJL SP7TF KO02 (x14) 194700 -12 300 SP7TF RR73; SP7Y <...> +02
UTC dB Audio Message 035800 -16 1882 SP7TF PB0AKY R JO22 (x3) 183245 +12 1156 JY4CI SP7TF KO02 183300 -23 1432 SP7TF JY4CI -12 183315 +13 1156 JY4CI SP7TF R-16 (x2)
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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