SP7VLU — 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 SP7VLU, decoded by SO8OO in southeastern Poland. 728 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 68 UTC dates in the available aggregate history. Observed between 2026-06-06 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 728 FT8 messages attributed to SP7VLU as the transmitting token by decoded message structure across 68 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (71%), followed by 40 m (29%). Most decodes (82%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (91%); the estimated median was +7 dB.
Overview
Bands
Last attributed message: 2026-10-23 10:33 UTC
Observed FT8 message patterns
- Attributed sample
- 728 messages
- Active dates
- 68 UTC dates
- Estimated median S/N
- +7 dB
- Estimated 10th-90th percentile
- -8 to +18 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 49, strong (≥ -8 dB) 663.
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 SP7VLU 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 SP7VLU
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
- KO00 · 359 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 84 km (approx.)
- Last such locator decoded
- 2026-10-23 07:31 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 | SP7VLU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-23 10:33 | 40m | -1 / -1 | SQ8V | 0 / +6 | 3 | ✓ Full exchange observed |
| 10-23 07:30 | 40m | -7 / 0 | SP7VCL | -5 / - | 7 | Partial capture |
| 10-23 05:49 | 80m | +2 / -12 | SP7VCL | +4 / +4 | 12 | ✓ Full exchange observed |
| 10-22 18:29 | 80m | +10 / - | SP5ROM | -15 / -20 | 4 | ✓ Closing observed |
| 10-21 19:05 | 80m | -1 / +7 | SP4VIT | -2 / - | 3 | ✓ Closing observed |
| 10-21 18:01 | 80m | -6 / -8 | ER5DX | -13 / -14 | 4 | ✓ Full exchange observed |
| 10-18 18:38 | 80m | +6 / - | DB100FT | - / - | 2 | Partial capture |
| 10-18 18:27 | 80m | +14 / +1 | SQ9MEZ | +6 / -1 | 5 | ✓ Full exchange observed |
| 10-18 18:08 | 80m | +8 / +3 | SP2GR | -2 / -3 | 5 | ✓ Full exchange observed |
| 10-18 18:07 | 80m | +7 / - | UA3QNA | +2 / +5 | 3 | ✓ Closing observed |
| 10-18 18:05 | 80m | +11 / -1 | RK6OQ | +2 / 0 | 5 | ✓ Full exchange observed |
| 10-18 18:04 | 80m | - / -18 | RC9WC | -17 / - | 2 | Partial capture |
| 10-18 18:03 | 80m | +8 / +5 | DO1SSB | +1 / -6 | 5 | ✓ Full exchange observed |
| 10-16 19:14 | 80m | +11 / - | HF10SQ8W | - / - | 3 | Partial capture |
| 10-16 19:07 | 80m | +9 / 0 | SQ9MEZ | -15 / -12 | 13 | Partial capture |
| 10-16 19:05 | 80m | +12 / - | OE/PD1SCO | - / - | 2 | Partial capture |
| 10-16 19:04 | 80m | +9 / - | HF10SQ8W | - / - | 2 | Partial capture |
| 10-16 18:58 | 80m | +11 / - | HF10SQ8W | - / - | 5 | Partial capture |
| 10-16 18:54 | 80m | +13 / - | LZ936BA | - / - | 3 | Partial capture |
| 10-16 15:46 | 40m | -5 / - | OH0KCE | - / - | 2 | Partial capture |
| 10-16 15:32 | 40m | -1 / - | SP5RZL | - / - | 4 | Partial capture |
| 10-14 18:34 | 80m | +3 / +2 | SP4NKU | +2 / - | 6 | ✓ Closing observed |
| 10-14 18:31 | 80m | +5 / -9 | DK8HC | -4 / -14 | 9 | ✓ Full exchange observed |
| 10-14 18:30 | 80m | +6 / - | SP9KKA | +11 / -1 | 3 | ✓ Closing observed |
| 10-13 19:17 | 80m | +9 / - | SQ7SE | 0 / +7 | 5 | ✓ Closing observed |
| 10-13 18:32 | 80m | +6 / +6 | OE3OOG | +10 / -2 | 5 | ✓ Full exchange observed |
| 10-13 18:31 | 80m | +6 / 0 | SP9KKA | +2 / - | 6 | ✓ Full exchange observed |
| 10-13 17:35 | 80m | +9 / 0 | RA7E/P | -8 / -18 | 7 | Partial capture |
| 10-13 15:14 | 40m | -8 / - | SP5RZL | - / +7 | 5 | ✓ Closing fragment |
| 10-12 18:38 | 80m | +7 / - | UA9JTJ/9 | - / +5 | 4 | Partial capture |
| 10-12 17:23 | 80m | -3 / +3 | SP9KKA | -8 / -2 | 8 | ✓ Full exchange observed |
| 10-11 05:45 | 80m | +20 / -6 | SP5RZL | +9 / -4 | 6 | ✓ Full exchange observed |
| 10-10 19:10 | 80m | +1 / - | SP5RZL | - / -1 | 4 | Partial capture |
| 10-10 19:05 | 80m | - / -10 | YO4NF | +9 / - | 3 | ✓ Closing fragment |
| 10-10 19:03 | 80m | 0 / -8 | SQ9MEZ | -9 / -16 | 2 | Partial capture |
| 10-09 17:47 | 80m | +8 / -14 | UT2SQ | +3 / - | 4 | ✓ Closing observed |
| 10-09 17:43 | 80m | +10 / -4 | HA/DO1SWC | +4 / -2 | 7 | Partial capture |
| 10-08 17:22 | 80m | -2 / - | SP4VIT | - / 0 | 3 | ✓ Closing fragment |
| 10-05 18:49 | 80m | +8 / +6 | SP4VIT | -1 / +3 | 5 | ✓ Full exchange observed |
| 10-04 13:45 | 40m | +3 / - | G0RVY | - / -16 | 3 | Partial capture |
| 10-04 13:35 | 40m | +2 / -2 | SP8RPA | 0 / - | 7 | ✓ Full exchange observed |
| 10-03 20:12 | 80m | +8 / - | SP7VCL | - / +9 | 9 | ✓ Closing fragment |
| 10-02 16:14 | 80m | +10 / +8 | SP9IML | -4 / +3 | 6 | Partial capture |
| 10-02 16:13 | 80m | +10 / -4 | SP7VCL | +14 / - | 4 | ✓ Full exchange observed |
| 10-02 07:46 | 40m | -13 / -8 | SP7VCL | -3 / - | 7 | ✓ Full exchange observed |
| 10-01 16:29 | 40m | -6 / -11 | SP4GDW | -12 / +5 | 5 | ✓ Full exchange observed |
| 09-29 19:17 | 80m | +2 / - | SP4VIT | - / -9 | 4 | ✓ Closing fragment |
| 09-27 09:57 | 40m | -6 / - | SP4GDW | - / +1 | 3 | ✓ Closing fragment |
| 09-27 09:50 | 40m | -4 / - | SQ9AWN | -6 / 0 | 5 | ✓ Full exchange observed |
| 09-24 18:29 | 80m | +4 / - | SN100PKP | - / -8 | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 153345 +2 954 SP5RZL SP7VLU KO00 153830 -7 1593 R9CS/P SP7VLU KO00 154600 -7 888 OH0KCE SP7VLU KO00 (x3) 073000 -7 1749 SP7VCL SP7VLU KO00 (x3) 073245 -4 1749 SP7VLU SP7VCL +00 (x4) 103300 +1 677 SP7VLU SQ8V -01 103315 -1 600 SQ8V SP7VLU R+06 103330 -1 677 SP7VLU SQ8V RR73
UTC dB Audio Message 183115 -15 1015 SP7VLU SP5ROM RR73 183130 +9 1014 SP5ROM SP7VLU 73 054900 +1 1503 SP7VCL SP7VLU KO00 054915 +5 1503 SP7VLU SP7VCL -12 054930 +0 1503 SP7VCL SP7VLU R+04 054945 +4 1503 SP7VLU SP7VCL -12 055000 -4 1503 SP7VCL SP7VLU R+04 (x2) 055045 +2 1502 SP7VLU SP7VCL RR73 055100 +1 925 SP7VCL SP7VLU R+00 055115 +5 1503 SP7VLU SP7VCL RR73 055130 +7 924 SP7VCL SP7VLU R+00 055145 +5 1502 SP7VLU SP7VCL RR73 055200 +7 925 SP7VCL SP7VLU R+00 055300 +4 1383 DB100FT SP7VLU KO00
UTC dB Audio Message 192215 +4 2215 SP7VLU EA8UP -13
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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