SP9WTC — 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 SP9WTC, decoded by SO8OO in southeastern Poland. 516 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 43 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-10-23.
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 516 FT8 messages attributed to SP9WTC as the transmitting token by decoded message structure across 43 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (63%), followed by 80 m (27%) and 20 m (5%). Most decodes (64%) 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 -11 dB.
Overview
Bands
Last attributed message: 2026-10-23 19:33 UTC
Observed FT8 message patterns
- Attributed sample
- 516 messages
- Active dates
- 43 UTC dates
- Estimated median S/N
- -11 dB
- Estimated 10th-90th percentile
- -18 to +11 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 113, moderate (-15 to -9 dB) 185, strong (≥ -8 dB) 218.
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 SP9WTC 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 SP9WTC
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
- KN09 · 259 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 75 km (approx.)
- Last such locator decoded
- 2026-10-23 19:30 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 | SP9WTC S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-24 15:24 | 10m | - / -1 | EB1LA | -4 / - | 3 | ✓ Closing fragment |
| 10-24 02:31 | 40m | - / -14 | PJ4/DH8BQA | -2 / - | 2 | Partial capture |
| 10-23 19:32 | 160m | +2 / -17 | SP3WWI | +1 / 0 | 6 | ✓ Full exchange observed |
| 10-23 19:30 | 160m | -4 / - | OH3DJP | - / -11 | 4 | ✓ Closing fragment |
| 10-23 18:56 | 80m | - / -16 | SP7VCL | +6 / - | 2 | ✓ Closing fragment |
| 10-23 16:53 | 40m | -24 / +1 | SP4VIT | -8 / +1 | 3 | ✓ Full exchange observed |
| 10-18 20:38 | 40m | - / - | PD0LBY | -9 / - | 3 | Partial capture |
| 10-18 18:33 | 80m | +11 / - | SQ9MEZ | +5 / - | 2 | ✓ Closing observed |
| 10-18 10:48 | 40m | -12 / - | SQ9MEZ | - / - | 6 | Partial capture |
| 10-13 14:45 | 40m | -8 / - | DA0M | - / -13 | 2 | ✓ Closing fragment |
| 10-13 14:44 | 40m | -6 / - | SP5RZL | - / +6 | 2 | ✓ Closing fragment |
| 10-13 09:20 | 40m | - / - | HF5W | -4 / - | 2 | Partial capture |
| 10-13 09:15 | 40m | -18 / -8 | SP4GDW | -21 / 0 | 4 | ✓ Full exchange observed |
| 10-12 06:28 | 40m | - / -2 | SP4VIT | -6 / - | 2 | ✓ Closing fragment |
| 10-09 12:19 | 40m | -19 / - | SP4GDW | -19 / +7 | 4 | ✓ Closing observed |
| 10-09 06:26 | 80m | -2 / - | SP4VIT | -2 / - | 4 | ✓ Closing observed |
| 10-08 17:18 | 80m | +1 / -4 | SQ9BC | +14 / - | 3 | ✓ Closing observed |
| 10-08 17:16 | 80m | -2 / - | SP4VIT | - / +8 | 3 | ✓ Closing fragment |
| 10-08 16:57 | 40m | - / -16 | SP4VIT | -7 / - | 3 | Partial capture |
| 10-08 07:02 | 40m | - / +9 | SP4VIT | -14 / - | 2 | ✓ Closing fragment |
| 10-07 10:24 | 40m | - / - | IU3WON | -19 / - | 3 | Partial capture |
| 10-07 10:23 | 40m | -16 / - | UA4FKT | - / 0 | 2 | ✓ Closing fragment |
| 10-07 10:21 | 40m | -20 / - | SP4VIT | -13 / +7 | 4 | ✓ Full exchange observed |
| 10-06 06:23 | 80m | 0 / +2 | SP4VIT | -5 / +6 | 7 | ✓ Full exchange observed |
| 10-05 18:56 | 80m | +2 / -1 | SP4VIT | -3 / +7 | 2 | Partial capture |
| 10-05 06:20 | 40m | - / - | S55A | +1 / - | 2 | Partial capture |
| 10-05 06:20 | 40m | - / -2 | SP4VIT | -9 / - | 2 | ✓ Closing fragment |
| 10-03 16:55 | 80m | - / -14 | OE5DML | +12 / - | 4 | ✓ Closing fragment |
| 10-03 16:53 | 80m | +14 / +4 | SP8RPA | -2 / - | 8 | ✓ Full exchange observed |
| 10-03 16:47 | 80m | +2 / - | SP8RPA | - / - | 2 | Partial capture |
| 10-03 11:06 | 40m | -16 / - | SH6RES | - / -4 | 3 | Partial capture |
| 10-03 11:03 | 40m | -16 / - | DL1NB | - / - | 2 | Partial capture |
| 10-02 19:16 | 80m | +3 / -1 | SP4VIT | -6 / - | 3 | ✓ Closing observed |
| 10-02 17:39 | 40m | - / -16 | SP4VIT | -4 / - | 2 | Partial capture |
| 10-02 16:59 | 80m | - / - | R2AL | +3 / - | 4 | Partial capture |
| 10-02 16:59 | 80m | +2 / -2 | YO4NT | +6 / - | 3 | Partial capture |
| 10-02 16:58 | 80m | 0 / -2 | SP7VCL | +4 / - | 2 | ✓ Closing observed |
| 10-02 16:51 | 80m | -1 / - | SP7VCL | - / - | 2 | Partial capture |
| 10-02 16:03 | 80m | +13 / -4 | UA4FKT | +5 / - | 5 | ✓ Full exchange observed |
| 10-02 16:01 | 80m | +8 / +1 | SP7VCL | +6 / - | 5 | ✓ Full exchange observed |
| 10-02 07:21 | 40m | -11 / 0 | SP7VCL | -4 / +4 | 5 | ✓ Full exchange observed |
| 10-01 16:25 | 40m | -8 / -9 | SP4GDW | -14 / -9 | 6 | ✓ Full exchange observed |
| 09-22 11:11 | 40m | -16 / -3 | SP8NFH | -3 / - | 5 | ✓ Full exchange observed |
| 09-22 11:07 | 40m | -15 / - | ZA5G | - / -14 | 3 | Partial capture |
| 09-22 11:03 | 40m | -24 / -10 | SP9WAZ | -12 / - | 3 | ✓ Closing observed |
| 09-22 11:01 | 40m | - / -4 | S51DD | -5 / - | 2 | ✓ Closing fragment |
| 09-21 19:08 | 80m | +18 / - | SQ9AWN | -2 / -4 | 6 | ✓ Full exchange observed |
| 09-19 10:06 | 40m | -23 / -2 | DH7TS | 0 / -2 | 3 | ✓ Full exchange observed |
| 09-12 18:30 | 80m | +19 / +4 | 3Z100PKP | +14 / +10 | 2 | Partial capture |
| 09-09 20:09 | 160m | -2 / -9 | SP100PKP | +5 / +5 | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 152430 -7 1413 SP9WTC EB1LA IN73 (x3)
UTC dB Audio Message 104915 -14 2209 SQ9MEZ SP9WTC KN09 (x5) 185230 -9 627 SP9WTC UA3GJM -06 203800 -9 1533 SP9WTC PD0LBY JO22 (x3) 145645 -11 2134 BG0FQU SP9WTC -18 165300 -8 1339 SP9WTC SP4VIT +01 165315 -24 1339 SP4VIT SP9WTC R+01 165330 -9 1339 SP9WTC SP4VIT RR73 023130 +0 2878 SP9WTC PJ4/DH8BQA R-14 (x2)
UTC dB Audio Message 200930 -2 2142 SP9WTC RR73; SP6JIU <...> +14 200945 -2 2233 <SP100PKP> SP9WTC +05 201030 +5 2232 SP9WTC SP100PKP R-09 201945 -3 2142 SO100PKP SP9WTC +13 202000 +11 1963 SP9WTC SQ100PKP R+02 193015 -3 476 OH3DJP SP9WTC KN09 (x4) 193230 +0 358 SP9WTC SP3WWI -17 193245 +4 476 SP3WWI SP9WTC R+00 193300 +0 358 SP9WTC SP3WWI -17 193315 +4 476 SP3WWI SP9WTC R+04 193330 +3 359 SP9WTC SP3WWI RRR 193345 -1 476 SP3WWI SP9WTC 73
UTC dB Audio Message 062500 +1 2142 SP4VIT SP9WTC 73 (x4) 171800 +14 630 SP9WTC SQ9BC -04 (x2) 171845 +1 1881 SQ9BC SP9WTC 73 062600 -4 1881 SP4VIT SP9WTC KN09 062615 -3 1545 SP9WTC SP4VIT +11 (x2) 062700 -1 1881 SP4VIT SP9WTC 73 183300 +11 531 SQ9MEZ SP9WTC KN09 183345 +5 532 SP9WTC SQ9MEZ RR73 185600 +4 1731 SP9WTC SP7VCL -16 (x2)
UTC dB Audio Message 191945 -13 1793 IK4CBO SP9WTC RR73 192000 -7 2140 SP9WTC IK4CBO 73 192030 -4 2605 SP9WTC DK7UY R-10 (x2) 172515 -16 1949 SP8BJU SP9WTC +10 172530 +5 1554 SP9WTC SP8BJU R+00 172545 -11 1865 SP8BJU SP9WTC RR73 172600 +9 1554 SP9WTC SP8BJU 73 172530 -9 1191 SP8BJU SP9WTC KN09 172645 +6 1191 SP9WTC SP8BJU +00 (x3) 172845 -13 725 SP9WTC DK1XAM JO42 (x3)
UTC dB Audio Message 111030 -3 2406 SP9WTC IK2ZJR JN45 (x4) 113415 -22 2406 RI1FJL SP9WTC KN09 (x11)
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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