SP9TBT — 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 SP9TBT, decoded by SO8OO in southeastern Poland. 7,331 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 115 UTC dates in the available aggregate history. Observed between 2026-06-06 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 7,331 FT8 messages attributed to SP9TBT as the transmitting token by decoded message structure across 115 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (75%), followed by 60 m (12%) and 40 m (12%). Most decodes (89%) fell within the six-hour window 19:00-01:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (84%); the estimated median was +5 dB.
Overview
Bands
Last attributed message: 2026-10-21 23:11 UTC
Observed FT8 message patterns
- Attributed sample
- 7,331 messages
- Active dates
- 115 UTC dates
- Estimated median S/N
- +5 dB
- Estimated 10th-90th percentile
- -13 to +14 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 486, moderate (-15 to -9 dB) 669, strong (≥ -8 dB) 6,176.
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 SP9TBT 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 SP9TBT
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
- JO90 · 5,446 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 208 km (approx.)
- Last such locator decoded
- 2026-10-21 23:11 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 | SP9TBT S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-21 23:52 | 40m | - / -12 | EC3A | -12 / - | 2 | Partial capture |
| 10-21 23:44 | 40m | - / - | RX9WM | -6 / - | 2 | Partial capture |
| 10-21 23:29 | 40m | - / -15 | EC3A | -1 / - | 2 | Partial capture |
| 10-21 23:26 | 40m | - / -18 | TA2ED | -18 / - | 5 | Partial capture |
| 10-21 23:22 | 40m | - / - | RX9WM | -8 / - | 3 | Partial capture |
| 10-21 23:15 | 60m | - / - | UD6AWH | -11 / - | 4 | Partial capture |
| 10-21 23:07 | 80m | +5 / - | F4NJU | - / -18 | 4 | ✓ Closing fragment |
| 10-21 21:28 | 40m | - / -18 | F4MVU | -9 / - | 4 | ✓ Closing fragment |
| 10-21 21:13 | 40m | - / - | F4MVU | -8 / - | 3 | Partial capture |
| 10-21 21:13 | 40m | - / +1 | M0OVG | -12 / - | 3 | ✓ Closing fragment |
| 10-21 21:11 | 40m | - / - | UA9SY | -22 / - | 2 | Partial capture |
| 10-21 21:06 | 40m | - / -19 | TA2ED | -22 / - | 3 | Partial capture |
| 10-21 21:02 | 40m | - / -9 | F1PBZ | +1 / - | 4 | Partial capture |
| 10-21 20:59 | 40m | - / -11 | MW7RHR | -12 / - | 2 | Partial capture |
| 10-21 08:22 | 40m | -17 / +3 | SP3SBY | -14 / +1 | 6 | ✓ Full exchange observed |
| 10-21 08:18 | 40m | -13 / - | WA1BXY | - / - | 4 | Partial capture |
| 10-21 08:09 | 40m | - / -16 | F1PBZ | -6 / - | 2 | Partial capture |
| 10-20 23:02 | 40m | - / -13 | TA2ED | -22 / - | 2 | Partial capture |
| 10-20 22:59 | 40m | - / -11 | TA2ED | -19 / - | 2 | Partial capture |
| 10-20 22:56 | 40m | - / - | PD0LBY | -6 / - | 2 | ✓ Closing fragment |
| 10-20 22:46 | 40m | - / -18 | TA2ED | -16 / - | 5 | Partial capture |
| 10-20 22:39 | 40m | - / -10 | IK5ZTY | -8 / - | 2 | ✓ Closing fragment |
| 10-20 22:24 | 40m | - / -5 | G0HSP | -8 / - | 3 | ✓ Closing fragment |
| 10-20 22:00 | 60m | - / -19 | G7FTN | -12 / - | 5 | ✓ Closing fragment |
| 10-20 21:54 | 60m | - / -7 | G8OCV | -6 / - | 2 | ✓ Closing fragment |
| 10-20 21:29 | 40m | - / -11 | F4JLS | -12 / - | 4 | ✓ Closing fragment |
| 10-20 21:20 | 40m | - / -13 | TA3STR | -11 / - | 2 | Partial capture |
| 10-20 10:41 | 40m | -13 / - | F3CJ | - / -24 | 6 | ✓ Closing fragment |
| 10-20 10:37 | 40m | -10 / - | M9XPN | - / -8 | 4 | ✓ Closing fragment |
| 10-20 10:31 | 40m | -8 / - | OH2CUB/P | - / -7 | 10 | ✓ Closing fragment |
| 10-19 22:40 | 40m | - / - | UA9SY | -19 / - | 6 | Partial capture |
| 10-19 22:35 | 40m | - / -15 | F1PBZ | +9 / - | 3 | Partial capture |
| 10-19 22:35 | 40m | - / - | R4FDD | -5 / - | 3 | Partial capture |
| 10-19 21:39 | 60m | - / -5 | IW3HXR | -4 / - | 4 | ✓ Closing fragment |
| 10-19 21:36 | 60m | - / -6 | SP6IYR | -4 / - | 2 | ✓ Closing fragment |
| 10-18 23:28 | 40m | - / -12 | F1PBZ | +8 / - | 3 | Partial capture |
| 10-18 22:27 | 80m | +3 / -1 | DH9DR | +7 / +4 | 6 | ✓ Full exchange observed |
| 10-18 22:23 | 80m | +7 / - | BD7OXR | - / -24 | 4 | ✓ Closing fragment |
| 10-18 22:20 | 80m | +1 / -7 | 1F3SW | -24 / - | 4 | Partial capture |
| 10-18 22:19 | 80m | +1 / -3 | DC4CP | +1 / 0 | 5 | ✓ Full exchange observed |
| 10-18 22:19 | 80m | - / - | ON4MAP | -12 / - | 4 | Partial capture |
| 10-18 22:18 | 80m | - / -2 | F1PBZ | +2 / - | 2 | Partial capture |
| 10-18 22:02 | 60m | - / -6 | DJ8DI | -10 / - | 4 | ✓ Closing fragment |
| 10-18 21:56 | 60m | - / -10 | SP3JHZ | -19 / - | 3 | ✓ Closing fragment |
| 10-18 20:42 | 40m | - / - | RU6LC | -8 / - | 2 | Partial capture |
| 10-18 20:37 | 40m | - / - | UA4FKT | +6 / - | 4 | Partial capture |
| 10-18 20:10 | 60m | - / -14 | DG2EBG | -15 / - | 3 | ✓ Closing fragment |
| 10-18 20:05 | 60m | - / +5 | DL5CG | -8 / - | 4 | ✓ Closing fragment |
| 10-18 19:41 | 60m | - / +5 | PF1B | -16 / - | 3 | ✓ Closing fragment |
| 10-18 19:32 | 80m | - / -18 | R2BQM | -24 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 212945 -8 1746 SP9TBT F4MVU 73 232245 -8 1728 SP9TBT RX9WM LO74 (x3) 232645 -21 1722 SP9TBT TA2ED -18 (x5) 232945 -1 1946 SP9TBT EC3A -15 (x2) 234445 -9 1394 SP9TBT RX9WM LO74 (x2) 235215 -8 1946 SP9TBT EC3A -12 (x2)
UTC dB Audio Message 213900 -4 2120 SP9TBT IW3HXR JN55 (x4) 215415 -6 959 SP9TBT G8OCV R-07 (x2) 220045 -13 940 SP9TBT G7FTN IO83 (x5) 231515 -13 1362 SP9TBT UD6AWH KN84 (x4)
UTC dB Audio Message 194415 +6 1896 CQ SP9TBT JO90 (x4) 230715 +4 2434 F4NJU SP9TBT -18 (x2) 230815 +5 2434 CQ SP9TBT JO90 (x2) 230915 +4 2434 F4NJU SP9TBT RR73 (x2) 231015 +9 2434 CQ SP9TBT JO90 (x4) 231300 -18 1549 SP9TBT ER1CW KN47
UTC dB Audio Message 233315 -13 1744 SA6BZZ SP9TBT JO90 190545 -17 1748 W1AW/1 SP9TBT JO90 (x2) 190915 -20 1748 <SQ100PKP> SP9TBT JO90 (x3) 191130 +5 1905 SP9TBT SQ100PKP -18 232815 -9 1793 CQ SP9TBT JO90 (x8)
UTC dB Audio Message 192530 -2 657 SP9TBT DN9DKN 73 193115 -3 1277 SP9TBT DF7EE JO40 (x5) 194215 -13 2074 SP9TBT DG6MDG JN47 (x3) 202945 -11 2395 SP9TBT IU3QYU JN55 (x3) 123745 -5 834 SP9TBT CR7CDR IM58 (x3)
UTC dB Audio Message 125100 -7 1660 SP9TBT PD3LKN R-07 125130 +1 2069 SP9TBT RZ4FWA LO23 125130 -7 1660 SP9TBT PD3LKN 73 125600 -14 1869 SP9TBT II7MGMU -14 125930 -6 1662 SP9TBT E70SZ JN84 (x3) 214830 -1 1250 SP9TBT EA5HM IM99 (x5) 224200 -16 1018 SP9TBT IR7MGGC -12 223830 -16 1565 SP9TBT DB1EF JO41 (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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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