SP3RK — 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 SP3RK, decoded by SO8OO in southeastern Poland. 864 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 23 UTC dates in the available aggregate history. Observed between 2026-06-16 and 2026-10-17.
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 864 FT8 messages attributed to SP3RK as the transmitting token by decoded message structure across 23 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (29%), followed by 40 m (28%) and 60 m (16%). Most decodes (66%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (61%); the estimated median was -5.1 dB.
Overview
Bands
Last attributed message: 2026-10-17 19:27 UTC
Observed FT8 message patterns
- Attributed sample
- 864 messages
- Active dates
- 23 UTC dates
- Estimated median S/N
- -5.1 dB
- Estimated 10th-90th percentile
- -17.8 to +11 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 141, moderate (-15 to -9 dB) 196, strong (≥ -8 dB) 527.
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 SP3RK 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 SP3RK
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
- JO71 · 437 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 508 km (approx.)
- Last such locator decoded
- 2026-10-17 19:27 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 | SP3RK S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-21 18:28 | 40m | - / -19 | S56DS | -10 / - | 2 | ✓ Closing fragment |
| 10-21 18:18 | 40m | - / -2 | IK2SND | +7 / - | 3 | ✓ Closing fragment |
| 10-21 18:14 | 40m | - / - | OO0O | -12 / - | 2 | ✓ Closing fragment |
| 10-21 18:12 | 40m | - / -13 | PH2M | 0 / - | 3 | ✓ Closing fragment |
| 10-21 17:53 | 40m | - / -15 | F1PBZ | -1 / - | 3 | Partial capture |
| 10-17 19:27 | 160m | -20 / - | RA0AF | - / - | 2 | Partial capture |
| 10-17 19:20 | 40m | -17 / - | EX7CQ | -11 / - | 2 | ✓ Closing observed |
| 10-16 19:52 | 40m | - / +10 | EI8GS | +5 / - | 2 | ✓ Closing fragment |
| 10-16 19:10 | 60m | +1 / - | BD4RHV | - / - | 2 | Partial capture |
| 10-16 19:08 | 60m | 0 / +5 | YL3NU | -13 / -1 | 5 | ✓ Full exchange observed |
| 10-16 19:07 | 60m | +4 / - | F5LMJ | - / -11 | 2 | Partial capture |
| 10-16 19:06 | 60m | +1 / 0 | IK4CBO | -4 / -5 | 5 | ✓ Full exchange observed |
| 10-16 19:06 | 60m | 0 / -8 | IZ4JMA | -22 / - | 3 | ✓ Closing observed |
| 10-16 19:03 | 60m | +6 / -5 | LZ2VQ | -2 / -10 | 7 | ✓ Full exchange observed |
| 10-16 19:02 | 60m | +6 / - | F6FHZ | - / -12 | 2 | ✓ Closing fragment |
| 10-16 18:29 | 160m | -17 / - | E70SZ | - / - | 5 | Partial capture |
| 10-16 18:23 | 160m | -17 / -12 | OH5KNL | +8 / - | 3 | ✓ Closing observed |
| 10-16 18:15 | 160m | -17 / 0 | PI4DX | +10 / - | 3 | ✓ Closing observed |
| 10-16 18:12 | 160m | -24 / -1 | YL3CW | +8 / +4 | 3 | ✓ Full exchange observed |
| 10-16 18:11 | 160m | - / - | F4AYI | -22 / - | 2 | Partial capture |
| 10-16 18:08 | 160m | -18 / -9 | HA1DAE | +7 / -5 | 9 | ✓ Full exchange observed |
| 10-16 18:05 | 160m | -22 / -5 | SP1MGM | -3 / +2 | 5 | ✓ Full exchange observed |
| 10-16 18:04 | 160m | -22 / - | DK7ZT | - / -6 | 3 | Partial capture |
| 10-16 18:01 | 160m | - / -9 | SP9DWT | -7 / - | 3 | ✓ Closing fragment |
| 10-16 17:59 | 160m | -23 / -19 | DG1LRH | -17 / - | 4 | ✓ Closing observed |
| 10-16 17:52 | 160m | - / -10 | LY8O | -5 / - | 3 | ✓ Closing fragment |
| 09-21 20:39 | 60m | +1 / - | DL9DBF | -15 / -5 | 5 | ✓ Closing observed |
| 09-21 20:38 | 60m | -4 / - | SO5WD | -12 / 0 | 3 | ✓ Closing observed |
| 09-21 20:37 | 60m | +1 / -11 | TF1A | -8 / -1 | 5 | ✓ Full exchange observed |
| 09-21 20:07 | 80m | +22 / - | LX1JH | - / - | 3 | Partial capture |
| 09-20 20:43 | 80m | +15 / - | PE1NPS | -16 / - | 2 | ✓ Closing observed |
| 09-20 20:40 | 80m | +11 / 0 | DO9SAM | +4 / - | 7 | ✓ Full exchange observed |
| 09-20 20:38 | 80m | +12 / - | MM0ULL | - / -5 | 4 | ✓ Closing fragment |
| 09-20 20:14 | 80m | +13 / - | EA8UP | - / - | 6 | Partial capture |
| 09-20 19:55 | 80m | +16 / - | JA5MHD | -17 / -13 | 3 | ✓ Closing observed |
| 09-20 19:53 | 80m | +13 / +3 | IQ0AAI | -1 / -4 | 5 | ✓ Full exchange observed |
| 09-16 06:37 | 60m | -4 / - | SQ7LQT | -1 / - | 3 | ✓ Closing observed |
| 09-16 06:32 | 60m | - / - | HA5DI | -17 / - | 9 | Partial capture |
| 09-16 06:32 | 60m | - / +1 | SQ7LQT | -3 / - | 5 | Partial capture |
| 09-16 06:31 | 60m | 0 / -1 | F4EJL | -10 / +3 | 5 | ✓ Full exchange observed |
| 09-11 20:35 | 160m | -4 / - | F4ISR | - / -25 | 2 | Partial capture |
| 09-11 20:30 | 160m | -14 / - | F4ISR | - / -21 | 4 | Partial capture |
| 09-11 20:24 | 160m | -16 / -13 | DO3VE | -4 / -6 | 6 | ✓ Full exchange observed |
| 09-11 20:24 | 160m | -17 / - | DL1KYF/P | - / -15 | 2 | ✓ Closing fragment |
| 09-11 18:53 | 60m | -4 / - | IU2PKC | - / -9 | 2 | ✓ Closing fragment |
| 09-11 18:50 | 60m | -5 / -8 | SP9UOP | +2 / -2 | 3 | ✓ Full exchange observed |
| 09-11 18:46 | 60m | +4 / - | DJ7BU | - / +3 | 2 | ✓ Closing fragment |
| 09-11 18:44 | 60m | +2 / - | DC9JVN | - / -10 | 2 | ✓ Closing fragment |
| 09-11 18:41 | 60m | +2 / -2 | DL7UKM | -2 / +3 | 7 | ✓ Full exchange observed |
| 09-11 18:40 | 60m | -1 / +3 | OM5JG | +2 / +8 | 6 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 175315 +3 2537 SP3RK F1PBZ -15 (x3) 181215 +2 292 SP3RK PH2M -13 (x3) 181445 -17 342 SP3RK OO0O JO11 (x2) 181845 +8 642 SP3RK IK2SND JN45 181915 -6 1872 SP3RK RU3VT -21 181915 +6 642 SP3RK IK2SND R-02 (x2) 182245 -15 1410 SP3RK OE7FZI JN57 182830 -9 1343 SP3RK S56DS -19 (x2)
UTC dB Audio Message 181800 -14 1042 CQ SP3RK JO71 181815 -20 1042 SP3RK OE1TOA JN88 182045 -19 1620 S59A SP3RK JO71 182300 +9 2435 SP3RK OH5KNL -12 (x2) 182345 -17 2435 OH5KNL SP3RK 73 182415 -13 2435 CQ SP3RK JO71 182545 -14 2435 UT7NY SP3RK -04 182900 -15 1004 E70SZ SP3RK JO71 (x5) 192700 -22 1502 RA0AF SP3RK JO71 (x2)
UTC dB Audio Message 190630 -22 1928 SP3RK IZ4JMA 73 190630 -6 2186 SP3RK IK4CBO JN54 190645 -2 785 IK4CBO SP3RK -05 190700 -3 2186 SP3RK IK4CBO R+00 190715 +4 784 IK4CBO SP3RK RR73 190730 -3 2186 SP3RK IK4CBO 73 190745 +6 784 F5LMJ SP3RK -11 190800 -12 1877 SP3RK YL3NU +05 190815 +2 785 F5LMJ SP3RK -11 190830 -12 1877 SP3RK YL3NU R-22 190845 +0 785 YL3NU SP3RK R-01 190900 -15 1877 SP3RK YL3NU RR73 190915 +1 785 YL3NU SP3RK 73 191030 -2 1535 BD4RHV SP3RK JO71 (x2)
UTC dB Audio Message 203915 +15 1509 MM0ULL SP3RK JO71 (x3) 204030 +6 1510 SP3RK DO9SAM JO61 (x3) 204215 +11 1510 DO9SAM SP3RK +16 204230 +4 1510 SP3RK DO9SAM R+00 204245 +11 1510 DO9SAM SP3RK RR73 204300 +4 1510 SP3RK DO9SAM 73 204345 +15 1510 PE1NPS SP3RK RR73 204400 -16 2052 SP3RK PE1NPS 73 200715 +21 2744 LX1JH SP3RK JO71 (x3)
UTC dB Audio Message 190315 +3 776 SP3RK Z61DX +25 (x2) 190015 -1 916 SP3RK CT3MD +06 090200 -12 1375 SP3RK EX8ABR -03 (x2)
UTC dB Audio Message 211130 -4 528 SP3RK DL1FLW JO61 211230 -6 529 SP3RK PA2KV R+10 (x2) 211330 -3 528 SP3RK DL1FLW JO61 (x5) 212000 -8 529 SP3RK DB5HA JO31 (x4) 065830 -14 1001 SP3RK MM7CEH IO85 (x3)
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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