SP4NKJ — 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 SP4NKJ, decoded by SO8OO in southeastern Poland. 2,528 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, across 73 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-11-06.
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 2,528 FT8 messages attributed to SP4NKJ as the transmitting token by decoded message structure across 73 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (77%), followed by 80 m (19%) and 40 m (3%). Most decodes (71%) fell within the six-hour window 14:00-20:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (90%); the estimated median was +1.9 dB.
Overview
Bands
Last attributed message: 2026-11-06 05:49 UTC
Observed FT8 message patterns
- Attributed sample
- 2,528 messages
- Active dates
- 73 UTC dates
- Estimated median S/N
- +1.9 dB
- Estimated 10th-90th percentile
- -8.7 to +8.8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 49, moderate (-15 to -9 dB) 207, strong (≥ -8 dB) 2,272.
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 SP4NKJ 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 SP4NKJ
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
- KO13 · 1,906 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 405 km (approx.)
- Last such locator decoded
- 2026-11-06 05:48 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 | SP4NKJ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-06 05:47 | 60m | +11 / - | GX6RAF/P | - / -11 | 6 | Partial capture |
| 11-06 05:25 | 60m | +8 / - | GX6RAF/P | - / - | 10 | Partial capture |
| 11-06 05:01 | 60m | - / 0 | HB9ADP | -6 / - | 3 | ✓ Closing fragment |
| 11-06 04:43 | 60m | - / -3 | S51WB | -3 / - | 4 | ✓ Closing fragment |
| 11-06 04:24 | 60m | - / -4 | F1IQH | -7 / - | 3 | ✓ Closing fragment |
| 11-05 19:42 | 60m | -6 / +5 | DL9DBZ | -11 / +9 | 5 | ✓ Full exchange observed |
| 11-05 19:30 | 60m | -1 / - | EA7Z | -16 / -9 | 4 | Partial capture |
| 11-05 19:27 | 60m | -2 / -10 | F4HGF | -19 / -5 | 5 | ✓ Full exchange observed |
| 11-05 18:17 | 60m | -9 / +1 | DL5SD | -3 / +5 | 3 | ✓ Full exchange observed |
| 11-05 18:14 | 60m | -14 / - | LB5WB | - / -1 | 2 | ✓ Closing fragment |
| 11-05 17:54 | 60m | - / -15 | LZ911TD | -20 / - | 5 | Partial capture |
| 11-05 17:31 | 60m | - / - | DL5AOL | -3 / - | 2 | Partial capture |
| 11-05 17:13 | 60m | -15 / 0 | OE9RWH | +3 / +5 | 4 | ✓ Full exchange observed |
| 11-05 17:11 | 60m | -10 / - | DL7JPH | - / -18 | 2 | ✓ Closing fragment |
| 11-05 16:11 | 60m | +10 / +7 | G8MIA | -7 / -8 | 5 | Partial capture |
| 11-05 16:10 | 60m | - / - | IN3UFW | -17 / - | 4 | Partial capture |
| 11-05 16:08 | 60m | - / - | G8MIA | -5 / - | 2 | Partial capture |
| 11-05 16:04 | 60m | +9 / -4 | IC8ATA | -13 / -19 | 5 | ✓ Full exchange observed |
| 11-05 16:04 | 60m | - / - | IN3UFW | -17 / - | 3 | Partial capture |
| 11-05 16:01 | 60m | - / - | DF2JC | -12 / - | 3 | Partial capture |
| 11-05 15:55 | 60m | +6 / +6 | OH6FSG | -6 / - | 5 | ✓ Full exchange observed |
| 11-05 15:50 | 60m | +7 / - | SP5CTY | -5 / - | 3 | ✓ Closing observed |
| 11-05 15:35 | 60m | +9 / +4 | SP3AVS | -13 / -14 | 4 | ✓ Full exchange observed |
| 11-05 15:29 | 60m | +6 / 0 | SP4OIK | -5 / -10 | 4 | ✓ Full exchange observed |
| 11-05 15:29 | 60m | +8 / -12 | UT2UBC | +3 / -5 | 5 | ✓ Full exchange observed |
| 11-05 15:25 | 60m | - / - | F1TYP | -13 / - | 7 | Partial capture |
| 11-05 05:33 | 60m | +6 / -4 | DL5MRK | -1 / -8 | 4 | ✓ Full exchange observed |
| 11-05 04:32 | 60m | - / -8 | DL3AMW | -2 / - | 2 | Partial capture |
| 11-04 19:28 | 60m | - / - | VE1YX | -14 / - | 2 | Partial capture |
| 11-04 19:19 | 60m | - / +6 | IK2SND | +5 / - | 3 | ✓ Closing fragment |
| 11-04 19:17 | 60m | - / -4 | DL7FE | -6 / - | 3 | ✓ Closing fragment |
| 11-04 19:09 | 60m | - / -15 | IN3WZS | -12 / - | 4 | ✓ Closing fragment |
| 11-04 19:07 | 60m | - / - | TA4SSK | -16 / - | 2 | Partial capture |
| 11-04 18:58 | 60m | - / +2 | F5AUB | -6 / - | 3 | ✓ Closing fragment |
| 11-04 18:24 | 60m | +8 / +8 | OZ6VFR | -18 / 0 | 3 | ✓ Full exchange observed |
| 11-04 18:17 | 60m | - / - | TA2EE | -16 / - | 2 | Partial capture |
| 11-04 18:15 | 60m | -2 / - | LA1HW | - / -8 | 2 | ✓ Closing fragment |
| 11-04 18:10 | 60m | +4 / -18 | GM4KHE | -10 / -11 | 4 | ✓ Full exchange observed |
| 11-04 17:37 | 60m | +4 / - | GB1RBL | - / -21 | 2 | ✓ Closing fragment |
| 11-04 17:34 | 60m | +5 / +5 | OK8DCC | -4 / +9 | 5 | ✓ Full exchange observed |
| 11-04 17:27 | 60m | +8 / - | SP7WQY | - / -2 | 2 | ✓ Closing fragment |
| 11-04 17:24 | 60m | +7 / 0 | IW0FGX | -10 / -1 | 5 | ✓ Full exchange observed |
| 11-04 17:19 | 60m | +8 / - | M0DSK | -14 / -2 | 4 | ✓ Full exchange observed |
| 11-04 17:11 | 60m | +6 / - | UN8DSW | - / -18 | 3 | ✓ Closing fragment |
| 11-04 17:10 | 60m | +8 / - | M0BEW | -13 / -5 | 3 | ✓ Closing observed |
| 11-04 16:51 | 60m | 0 / - | DL1LCK | -9 / +6 | 3 | ✓ Closing observed |
| 11-04 16:49 | 60m | -10 / +9 | DL9BDR | -13 / +2 | 4 | ✓ Full exchange observed |
| 11-04 16:37 | 60m | +8 / +4 | DJ7BU | +4 / +4 | 5 | ✓ Full exchange observed |
| 11-04 16:36 | 60m | +4 / - | OH1KH | -12 / +4 | 4 | ✓ Full exchange observed |
| 11-04 16:33 | 60m | +6 / -2 | OH5D | -22 / +7 | 4 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 052615 +9 581 GX6RAF/P SP4NKJ KO13 (x15)
UTC dB Audio Message 172545 -11 704 SP4NKJ DM2BM JO54 172600 +10 704 DM2BM SP4NKJ -06 172615 -13 704 SP4NKJ DM2BM R+04 172630 +6 704 DM2BM SP4NKJ RR73 172645 -13 704 SP4NKJ DM2BM 73 172700 +7 704 CQ SP4NKJ KO13 (x5) 172945 -16 1551 SP4NKJ UR5WBO +06 173000 +6 544 EI4KF SP4NKJ KO13 (x2) 051315 +9 852 T77RN SP4NKJ KO13 051530 -8 852 SP4NKJ T77RN -13
UTC dB Audio Message 192000 -13 1757 SP4NKJ DK7ZT -07 193230 +14 2113 SP4NKJ HA7TM -14 (x2) 193315 -9 2113 HA7TM SP4NKJ 73 193645 -15 566 UR4LRG SP4NKJ KO13 193930 -10 2269 SQ2RAD SP4NKJ KO13 194015 +10 2269 SP4NKJ SQ2RAD -22 (x2) 194615 -12 2682 UR4LRG SP4NKJ KO13 195245 -17 702 YO9HP SP4NKJ KO13 (x2) 195945 -2 388 F5BZB SP4NKJ KO13 201130 +4 2803 EW4M SP4NKJ KO13 051830 -12 480 F4BPO SP4NKJ KO13 051945 -8 2281 OZ1ADL SP4NKJ KO13
UTC dB Audio Message 101115 -12 1190 DL7PIA SP4NKJ KO13 (x2) 101200 -10 1307 SP4NKJ DL7PIA -20 101215 -8 1190 DL7PIA SP4NKJ R-14 053715 +6 478 SP4NKJ DM8ITZ -15 (x2) 054400 +10 777 SP4NKJ RR73; SV4YQ <...> +12 161115 -6 1912 SP4NKJ DH2LM +16 161130 -14 1913 DH2LM SP4NKJ KO13 161145 +0 1912 SP4NKJ DH2LM +08 (x2) 172515 -9 1413 SP4NKJ R3DQB KO94 191315 -16 2237 SP4NKJ PE1JLZ JO22 (x3)
UTC dB Audio Message 054945 +8 1310 SP4NKJ GB64MOD +05
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.
Explore CW reception at SO8OOFT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee