SN4K — 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 SN4K, decoded by SO8OO in southeastern Poland. 3,222 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 79 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-16.
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 3,222 FT8 messages attributed to SN4K as the transmitting token by decoded message structure across 79 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (43%), followed by 40 m (40%) and 160 m (12%). Most decodes (80%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (78%); the estimated median was -1.1 dB.
Overview
Bands
Last attributed message: 2026-10-16 22:12 UTC
Observed FT8 message patterns
- Attributed sample
- 3,222 messages
- Active dates
- 79 UTC dates
- Estimated median S/N
- -1.1 dB
- Estimated 10th-90th percentile
- -13 to +11 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 211, moderate (-15 to -9 dB) 513, strong (≥ -8 dB) 2,498.
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 SN4K 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 SN4K
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
- KO03 · 1,704 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 400 km (approx.)
- Last such locator decoded
- 2026-10-16 22:09 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 | SN4K S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-22 18:14 | 40m | - / -17 | DL1ECG | -6 / - | 3 | Partial capture |
| 10-21 20:44 | 40m | - / 0 | M7IPY | -6 / - | 2 | ✓ Closing fragment |
| 10-21 20:27 | 40m | - / -12 | LZ2PAJ | -19 / - | 2 | ✓ Closing fragment |
| 10-21 19:45 | 40m | - / -1 | IW2ODG | 0 / - | 2 | ✓ Closing fragment |
| 10-21 19:30 | 40m | - / +1 | PD3JW | -17 / - | 3 | ✓ Closing fragment |
| 10-20 12:33 | 10m | - / -12 | 7Z1FF | -7 / - | 2 | ✓ Closing fragment |
| 10-18 21:25 | 40m | - / -6 | GJ0KYZ | -4 / - | 2 | ✓ Closing fragment |
| 10-18 20:45 | 40m | - / -9 | M7FSE | -14 / - | 2 | ✓ Closing fragment |
| 10-18 20:41 | 40m | - / -13 | LA7HJA | -17 / - | 2 | ✓ Closing fragment |
| 10-18 20:21 | 40m | - / -11 | PA2ES | +6 / - | 3 | Partial capture |
| 10-18 20:06 | 40m | - / -18 | IU5VMC | -8 / - | 2 | Partial capture |
| 10-18 20:04 | 40m | - / - | TA3BJK | -8 / - | 2 | ✓ Closing fragment |
| 10-18 19:17 | 40m | - / -7 | M0SSV | -7 / - | 8 | Partial capture |
| 10-18 18:34 | 40m | - / +2 | IZ3KLB | -6 / - | 3 | Partial capture |
| 10-17 21:47 | 40m | - / -17 | LB5ZH | -10 / - | 2 | Partial capture |
| 10-17 21:37 | 40m | - / -8 | G1XOW | +8 / - | 2 | ✓ Closing fragment |
| 10-17 21:24 | 40m | - / - | IV3IHV | -8 / - | 3 | Partial capture |
| 10-17 21:14 | 40m | - / -13 | TA2ED | -12 / - | 2 | ✓ Closing fragment |
| 10-17 21:09 | 40m | - / -12 | ON1BH | -16 / - | 2 | ✓ Closing fragment |
| 10-16 22:18 | 80m | - / -10 | DO2GGH | +6 / - | 2 | ✓ Closing fragment |
| 10-16 22:09 | 80m | +4 / -14 | M7RFR | -12 / -19 | 7 | ✓ Full exchange observed |
| 10-16 22:09 | 80m | - / -9 | ON1AEY | +2 / - | 4 | Partial capture |
| 10-16 22:07 | 80m | 0 / -6 | F4NGR | -12 / -3 | 6 | Partial capture |
| 10-16 22:03 | 80m | +4 / - | LA/OZ6GO | - / +7 | 2 | Partial capture |
| 10-16 22:02 | 80m | -2 / -20 | M9DNC | -16 / -19 | 5 | ✓ Full exchange observed |
| 10-16 21:55 | 80m | +4 / - | DK2MAX | -10 / -1 | 5 | ✓ Closing observed |
| 10-16 21:54 | 80m | +1 / - | DL/N0PNG | - / +7 | 4 | Partial capture |
| 10-16 21:52 | 80m | -1 / - | PA1AZ | - / - | 3 | Partial capture |
| 10-16 21:48 | 80m | +3 / - | G1DWG | - / -6 | 5 | ✓ Closing fragment |
| 10-16 21:46 | 80m | 0 / - | ON8SL | - / - | 3 | Partial capture |
| 10-16 21:44 | 80m | -1 / -5 | OH8WW | +4 / - | 5 | ✓ Full exchange observed |
| 10-16 21:42 | 80m | +8 / -15 | DL1DY | -14 / -14 | 3 | ✓ Full exchange observed |
| 10-16 21:38 | 80m | +15 / - | RN7A | - / - | 3 | Partial capture |
| 10-16 21:35 | 80m | +6 / - | R6AR | - / -5 | 3 | ✓ Closing fragment |
| 10-16 21:33 | 80m | - / -10 | TA3GO | -16 / - | 2 | ✓ Closing fragment |
| 10-16 18:31 | 80m | +7 / - | SP3FXC | +16 / +4 | 5 | Partial capture |
| 10-16 18:22 | 160m | -2 / - | SP3BPU | - / - | 3 | Partial capture |
| 10-16 18:19 | 160m | +3 / - | UD8S | - / - | 3 | Partial capture |
| 10-16 18:17 | 160m | +1 / -18 | RV3V | -10 / - | 4 | ✓ Closing observed |
| 10-16 18:12 | 160m | -6 / - | UA4FKT | - / +4 | 2 | Partial capture |
| 10-16 17:51 | 80m | +2 / - | DA6NEL | - / +3 | 2 | Partial capture |
| 10-16 17:49 | 80m | +4 / - | RA1AGA | - / - | 3 | Partial capture |
| 10-16 17:19 | 80m | +8 / -2 | DO4EB | -1 / -9 | 5 | ✓ Full exchange observed |
| 10-16 17:17 | 80m | -1 / - | R5BM/M | - / - | 3 | Partial capture |
| 10-16 17:16 | 80m | +2 / - | IZ0BEE | - / - | 2 | Partial capture |
| 10-16 17:07 | 80m | 0 / -5 | RK6OQ | -12 / -1 | 5 | ✓ Full exchange observed |
| 10-16 17:07 | 80m | - / - | RA6OY | -2 / - | 4 | Partial capture |
| 10-16 17:05 | 80m | - / - | OE5DML | -10 / - | 2 | ✓ Closing fragment |
| 10-16 16:51 | 40m | -9 / - | SM7WNM | - / -14 | 6 | Partial capture |
| 10-16 16:48 | 40m | - / -2 | DL1BFR | +5 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 193100 -17 1083 SN4K PD3JW R+01 (x2) 193400 -18 2141 SN4K G3YDY -09 194515 +1 1113 SN4K IW2ODG -01 (x2) 194945 -13 1687 SN4K TA4RC RR73 201345 -17 1044 SN4K MW6YPO -12 202745 -18 1047 SN4K LZ2PAJ -12 (x2) 202945 -3 1504 SN4K EG46PPA -15 204415 -5 1610 SN4K M7IPY +00 (x2) 181430 -7 1496 SN4K DL1ECG -17 (x3)
UTC dB Audio Message 113330 -7 580 SN4K CT2FXY RR73 120300 -17 1646 SN4K CT2IGO -03 (x2) 142200 -1 1569 SN4K EA1VIL +03 (x2) 143200 -16 1833 SN4K EA7KQH -13 (x2) 145800 -4 392 SN4K RR73; WA3C <...> -12 151445 -11 831 SN4K EA4GFP -12 (x2) 151745 -21 1450 SN4K EA5BF RR73 113315 -1 2445 SN4K F1PBZ -13 (x2) 123330 -3 2267 SN4K 7Z1FF -12 (x2)
UTC dB Audio Message 220930 -5 728 SN4K ON1AEY -09 220930 +0 789 M7RFR SN4K KO03 220945 -11 789 SN4K M7RFR -14 221000 +3 728 SN4K ON1AEY -09 221000 +5 790 F4NGR SN4K R-03 221015 -15 789 SN4K M7RFR -14 221030 +8 790 M7RFR SN4K R-19 221045 -10 789 SN4K M7RFR RRR 221100 +8 728 SN4K ON1AEY -09 221100 +9 790 M7RFR SN4K 73 221130 +5 790 F4NGR SN4K R-03 (x2) 221445 +2 1491 SN4K HF37KJP +03 221845 +7 2422 SN4K DO2GGH -10 (x2)
UTC dB Audio Message 181115 -7 1871 CQ SN4K KO03 (x2) 181215 -6 1871 UA4FKT SN4K +04 (x2) 181545 -5 1871 CQ SN4K KO03 181730 -8 695 SN4K RV3V LO06 (x2) 181815 +1 1871 RV3V SN4K RRR 181830 -11 695 SN4K RV3V 73 181930 +3 1237 UD8S SN4K KO03 (x3) 182245 -2 2060 SP3BPU SN4K KO03 (x3)
UTC dB Audio Message 220515 -24 1535 SN4K ON8SL -07 (x3)
UTC dB Audio Message 085300 -21 1534 SN4K 2E0TSS R+11 085530 -10 1451 SN4K PD0WL R-06 (x2) 090230 -13 1579 SN4K PD0GJS -03 090630 -8 1086 SN4K M9LCB +03 (x2) 090945 -8 1196 SN4K PD0ACM JO21 (x5) 131030 +1 1880 SN4K UA3RCW -09 (x2) 131330 -17 1653 SN4K G3ZRN RR73 132315 -19 1668 SN4K M9VMT +00
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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