SP4TT — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SP4TT, decoded by SO8OO in southeastern Poland. 191 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, across 15 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-18.
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 191 FT8 messages attributed to SP4TT as the transmitting token by decoded message structure across 15 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (34%), followed by 160 m (27%) and 40 m (21%). Several six-hour UTC windows tied for the largest share (82%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (61%); the estimated median was -6 dB.
Overview
Bands
Last attributed message: 2026-09-18 21:02 UTC
Observed FT8 message patterns
- Attributed sample
- 191 messages
- Active dates
- 15 UTC dates
- Estimated median S/N
- -6 dB
- Estimated 10th-90th percentile
- -17 to +11 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 23, moderate (-15 to -9 dB) 52, strong (≥ -8 dB) 116.
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 SP4TT 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 SP4TT
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
- KO04 · 86 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 510 km (approx.)
- Last such locator decoded
- 2026-09-18 20:57 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 | SP4TT S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-18 21:07 | 160m | - / - | UR9QQ | -10 / - | 2 | Partial capture |
| 09-18 21:06 | 160m | - / -8 | UA3ZUX | +6 / - | 3 | ✓ Closing fragment |
| 09-18 21:05 | 160m | - / +2 | HA7TM | +13 / - | 3 | ✓ Closing fragment |
| 09-18 21:01 | 80m | +10 / -11 | IK2RZQ | -5 / 0 | 5 | ✓ Full exchange observed |
| 09-18 20:58 | 80m | +12 / +7 | SP2GR | -6 / +5 | 4 | ✓ Full exchange observed |
| 09-18 20:57 | 80m | +5 / +1 | SQ9KWY | +8 / +9 | 5 | ✓ Full exchange observed |
| 09-18 20:48 | 60m | -12 / -5 | OT4R | -18 / -10 | 4 | ✓ Full exchange observed |
| 09-18 20:47 | 60m | -16 / 0 | YO9FDG | +5 / +10 | 6 | ✓ Full exchange observed |
| 09-18 20:46 | 60m | -16 / - | OS4K | - / -21 | 2 | ✓ Closing fragment |
| 09-18 20:45 | 60m | -17 / 0 | SN1A | -4 / - | 4 | ✓ Full exchange observed |
| 09-18 20:44 | 60m | -14 / -6 | SV1DKR | -11 / -8 | 4 | ✓ Full exchange observed |
| 09-12 05:30 | 80m | - / - | DL1GLO | -12 / - | 6 | Partial capture |
| 09-12 05:29 | 80m | - / - | DL1UDO | -15 / - | 3 | Partial capture |
| 09-12 05:25 | 80m | +5 / - | G0BLB | -23 / -16 | 7 | ✓ Closing observed |
| 09-05 05:12 | 80m | - / - | SQ2RO | -4 / - | 3 | Partial capture |
| 08-22 21:47 | 160m | - / - | DL1HDL | -7 / - | 3 | Partial capture |
| 08-22 21:41 | 160m | -4 / -3 | LB7ZG | -16 / 0 | 5 | ✓ Full exchange observed |
| 08-22 21:38 | 160m | -3 / -3 | DK2BJ | -5 / -6 | 5 | ✓ Full exchange observed |
| 08-22 21:38 | 160m | - / - | F5RRS | -9 / - | 5 | Partial capture |
| 08-22 21:38 | 160m | -4 / +2 | HA7TM | +12 / - | 5 | ✓ Full exchange observed |
| 08-22 21:36 | 80m | - / - | DL7UKM | -8 / - | 2 | Partial capture |
| 08-08 19:34 | 160m | -9 / -15 | RV9FF | -9 / - | 5 | ✓ Closing observed |
| 08-08 19:34 | 160m | - / - | UA3FH | -22 / - | 2 | Partial capture |
| 08-08 19:33 | 160m | -8 / -13 | R8FB | 0 / -10 | 5 | ✓ Full exchange observed |
| 08-08 19:28 | 160m | - / -1 | DB100FT | -10 / - | 2 | ✓ Closing fragment |
| 08-08 19:27 | 160m | -8 / -3 | DO7RMS | +1 / -2 | 6 | ✓ Full exchange observed |
| 08-08 06:12 | 40m | -20 / - | OA4ENG | - / -17 | 2 | Partial capture |
| 08-08 06:05 | 40m | -12 / - | OA4ENG | - / -25 | 4 | Partial capture |
| 08-08 06:01 | 40m | - / - | SP3IPA | -9 / - | 3 | Partial capture |
| 08-08 05:41 | 60m | - / - | DK5WL | -12 / - | 3 | Partial capture |
| 08-02 07:59 | 20m | - / - | SV1EKI | -10 / - | 5 | Partial capture |
| 07-30 19:50 | 80m | - / - | OE3ZIO | -4 / - | 3 | Partial capture |
| 07-30 19:49 | 80m | - / +4 | RA2FU | -4 / - | 2 | Partial capture |
| 07-30 19:45 | 160m | -8 / -2 | HF5A | -7 / +2 | 4 | ✓ Full exchange observed |
| 07-15 20:09 | 80m | +6 / -8 | RW4HB | -7 / +2 | 6 | ✓ Full exchange observed |
| 07-15 20:07 | 80m | +8 / -5 | UA3VVA | 0 / +1 | 6 | ✓ Full exchange observed |
| 07-15 20:06 | 80m | +6 / 0 | F1PBZ | -2 / +1 | 4 | ✓ Full exchange observed |
| 07-12 07:02 | 40m | - / - | DK4FH | -10 / - | 2 | Partial capture |
| 07-12 07:01 | 40m | - / - | IQ4JO | -10 / - | 2 | ✓ Closing fragment |
| 07-11 19:53 | 80m | +2 / - | UA1RC | - / -15 | 2 | ✓ Closing fragment |
| 07-11 19:51 | 80m | +4 / -6 | SV9MBH | -9 / -14 | 5 | ✓ Full exchange observed |
| 07-11 19:46 | 80m | +8 / 0 | SQ8AZT | +9 / +6 | 7 | ✓ Full exchange observed |
| 07-11 19:45 | 80m | +6 / +2 | E70SZ | +6 / +4 | 5 | ✓ Full exchange observed |
| 07-11 19:41 | 160m | - / - | DL9KM | -15 / - | 6 | Partial capture |
| 07-11 19:40 | 160m | -16 / -11 | R6ML | -6 / -7 | 5 | ✓ Full exchange observed |
| 07-11 19:33 | 40m | - / - | DF8RU | -5 / - | 4 | Partial capture |
| 07-11 19:32 | 40m | - / - | DL9KM | -16 / - | 4 | Partial capture |
| 07-11 06:21 | 20m | - / - | DL1R | -2 / - | 3 | Partial capture |
| 07-11 06:19 | 20m | - / -15 | PD0HLA | -8 / - | 2 | Partial capture |
| 07-11 06:18 | 20m | - / - | UR4QWW | -14 / - | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 214245 -17 1094 SP4TT LB7ZG 73 214300 -6 1545 CQ SP4TT KO04 214315 +0 1520 SP4TT UX5UO KO50 214715 -13 996 SP4TT DL1HDL JO53 (x3) 210545 +12 1448 SP4TT HA7TM KN07 (x2) 210645 +3 2513 SP4TT UA3ZUX KO90 210645 +13 1447 SP4TT HA7TM 73 210715 -9 1396 SP4TT UR9QQ KN77 210715 +9 2513 SP4TT UA3ZUX R-08 210745 -10 1396 SP4TT UR9QQ KN77 210745 +7 2513 SP4TT UA3ZUX 73 210915 -23 1908 SP4TT R2EA/P -11
UTC dB Audio Message 205745 +8 1902 SP4TT SQ9KWY JN99 205800 +5 1903 SQ9KWY SP4TT +09 205815 +8 1902 SP4TT SQ9KWY R+01 205830 +5 1903 SQ9KWY SP4TT RR73 205845 +8 1902 SP4TT SQ9KWY 73 205845 -6 1248 SP4TT SP2GR JO93 205900 +13 1903 SP2GR SP4TT +05 205915 -6 1247 SP4TT SP2GR R+07 205930 +10 1903 SP2GR SP4TT RR73 210000 +4 1903 G0TSM/P SP4TT -11 210145 -5 756 SP4TT IK2RZQ JN45 210200 +8 1903 IK2RZQ SP4TT +00 210215 -10 756 SP4TT IK2RZQ R-11 210230 +11 1903 IK2RZQ SP4TT RR73 210245 +0 756 SP4TT IK2RZQ 73
UTC dB Audio Message 204600 -15 1195 SN1A SP4TT RR73 204615 -2 1431 SP4TT SN1A 73 204630 -15 1195 OS4K SP4TT R-21 (x2) 204745 +3 855 SP4TT YO9FDG KN24 204800 -13 1195 DL9KM SP4TT RR73 204815 +7 855 SP4TT YO9FDG KN24 204830 -18 1195 YO9FDG SP4TT +10 204845 +5 854 SP4TT YO9FDG R+00 204845 -22 1421 SP4TT OT4R -05 204900 -15 1195 YO9FDG SP4TT RR73 204915 +4 854 SP4TT YO9FDG 73 204930 -13 1195 OT4R SP4TT R-10 205045 -14 1421 SP4TT OT4R RR73 205100 -11 1195 OT4R SP4TT 73
UTC dB Audio Message 193745 -21 1877 CQ DX SP4TT KO04 (x5) 060030 -15 1702 PA3CPS SP4TT RR73 060115 -9 1012 SP4TT SP3IPA JO82 (x3) 060530 -12 2412 OA4ENG SP4TT -25 (x6)
UTC dB Audio Message 061845 -13 1873 SP4TT UR4QWW KN77 061845 -11 2721 SP4TT DL1R JN58 061915 -8 2652 SP4TT PD0HLA -15 061945 -17 1872 SP4TT UR4QWW KN77 061945 -9 2651 SP4TT PD0HLA -15 062045 -8 1872 SP4TT UR4QWW KN77 062045 -7 2758 SP4TT DJ0MAB JN49 062115 -3 2721 SP4TT DL1R JN58 (x3) 075915 -8 2494 SP4TT SV1EKI KM18 (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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