SQ4KBF — 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 SQ4KBF, decoded by SO8OO in southeastern Poland. 689 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, across 8 UTC dates in the available aggregate history. Observed between 2026-09-29 and 2026-10-10.
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 689 FT8 messages attributed to SQ4KBF as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (68%), followed by 60 m (27%) and 80 m (5%). Most decodes (65%) fell within the six-hour window 13:00-19:00 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: 2026-10-10 17:26 UTC
Observed FT8 message patterns
- Attributed sample
- 689 messages
- Active dates
- 8 UTC dates
- Estimated median S/N
- -11 dB
- Estimated 10th-90th percentile
- -16 to -3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 103, moderate (-15 to -9 dB) 358, strong (≥ -8 dB) 228.
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 SQ4KBF 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 SQ4KBF
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 · 382 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 405 km (approx.)
- Last such locator decoded
- 2026-10-10 17:24 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 | SQ4KBF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-16 05:46 | 10m | - / -16 | 4Z5NN | -1 / - | 3 | ✓ Closing fragment |
| 10-10 17:25 | 60m | -12 / -2 | OK2RM | -20 / -14 | 5 | ✓ Full exchange observed |
| 10-10 17:23 | 60m | -10 / - | ON4MGV | - / -15 | 2 | Partial capture |
| 10-10 17:21 | 60m | -12 / - | OZ5AGJ | - / -9 | 2 | Partial capture |
| 10-10 17:18 | 60m | -10 / -6 | OE5DML | 0 / -3 | 6 | ✓ Full exchange observed |
| 10-10 17:17 | 60m | - / - | OM7FS | -5 / - | 3 | Partial capture |
| 10-10 17:16 | 60m | -9 / -1 | LY2J | -10 / -5 | 5 | ✓ Full exchange observed |
| 10-10 17:14 | 60m | -6 / -16 | DL1IP | -4 / -13 | 4 | Partial capture |
| 10-10 17:12 | 60m | -6 / -2 | G4JYU | -1 / -12 | 6 | ✓ Full exchange observed |
| 10-10 17:12 | 60m | -10 / +2 | SP6SOZ | -17 / -8 | 5 | ✓ Full exchange observed |
| 10-10 17:09 | 60m | -8 / 0 | IK0BAL | -2 / - | 6 | ✓ Closing observed |
| 10-10 17:08 | 60m | -4 / 0 | DK7ZT | -8 / -13 | 5 | ✓ Full exchange observed |
| 10-10 17:06 | 60m | - / - | SV2BWY | -4 / - | 4 | Partial capture |
| 10-10 13:58 | 10m | - / +3 | ZS5HR | -16 / - | 2 | Partial capture |
| 10-10 11:50 | 10m | - / -2 | CT3MD | -15 / - | 2 | ✓ Closing fragment |
| 10-10 08:05 | 10m | - / -2 | JH3CUL | -13 / - | 3 | ✓ Closing fragment |
| 10-09 06:50 | 80m | -4 / -10 | DA1ST | -12 / -16 | 6 | ✓ Full exchange observed |
| 10-09 06:46 | 80m | 0 / +6 | SP5EXA | +6 / -1 | 5 | ✓ Full exchange observed |
| 10-09 06:43 | 80m | +5 / -1 | SQ7LQT | -13 / -12 | 4 | ✓ Full exchange observed |
| 10-09 06:40 | 80m | +4 / -7 | SP6FME | +7 / -13 | 6 | ✓ Full exchange observed |
| 10-09 06:39 | 80m | +3 / - | SP4VIT | 0 / -6 | 5 | ✓ Full exchange observed |
| 10-09 06:35 | 60m | - / - | DK2MAX | -12 / - | 7 | Partial capture |
| 10-09 06:35 | 60m | - / - | ON7KEI | -16 / - | 3 | Partial capture |
| 10-09 06:32 | 60m | -6 / -9 | DL1UDO | -8 / -17 | 10 | ✓ Full exchange observed |
| 10-09 06:29 | 60m | - / - | DK2MAX | -10 / - | 8 | Partial capture |
| 10-09 06:27 | 60m | -4 / - | RG0S | - / - | 6 | Partial capture |
| 10-05 15:42 | 40m | -10 / - | RO2T | - / -7 | 2 | Partial capture |
| 10-05 15:40 | 40m | -10 / - | IN3KSR | - / -14 | 2 | Partial capture |
| 10-05 15:33 | 40m | -11 / - | F4IOE | -2 / -11 | 10 | ✓ Closing observed |
| 10-05 15:27 | 40m | -16 / -4 | YO2OXD | -4 / - | 3 | ✓ Closing observed |
| 10-05 15:12 | 40m | -10 / - | IK1MJK | -9 / -7 | 2 | Partial capture |
| 10-05 15:10 | 40m | -8 / - | IK2RZQ | -4 / -13 | 3 | ✓ Closing observed |
| 10-05 15:06 | 40m | -10 / -13 | DL9KM | -10 / -1 | 5 | ✓ Full exchange observed |
| 10-05 14:33 | 40m | -8 / - | DL1KEA | - / 0 | 3 | Partial capture |
| 10-05 14:29 | 40m | -10 / -10 | DD7EE | -4 / -1 | 4 | ✓ Full exchange observed |
| 10-05 14:18 | 40m | -9 / - | R4YX | -21 / -8 | 15 | Partial capture |
| 10-05 14:18 | 40m | -10 / - | M1DBB | - / -10 | 2 | Partial capture |
| 10-05 14:12 | 40m | -11 / -12 | UR4QRT | -16 / -11 | 4 | ✓ Full exchange observed |
| 10-05 14:08 | 40m | -12 / -12 | DF2KD | -20 / -14 | 11 | ✓ Full exchange observed |
| 10-05 14:02 | 40m | -7 / - | SP2BT | - / -14 | 3 | ✓ Closing fragment |
| 10-05 13:58 | 40m | - / - | YO2OXD | -3 / - | 3 | Partial capture |
| 10-05 13:57 | 40m | -14 / -9 | LY1SR | -2 / +1 | 4 | ✓ Full exchange observed |
| 10-05 13:54 | 40m | - / -16 | F1IQH | -16 / - | 2 | ✓ Closing fragment |
| 10-05 13:52 | 40m | -12 / -4 | SQ9DKS | -10 / -5 | 5 | ✓ Full exchange observed |
| 10-05 13:49 | 40m | -11 / - | DL3IAK | - / -8 | 6 | Partial capture |
| 10-05 13:49 | 40m | - / - | R4YX | -20 / - | 2 | Partial capture |
| 10-05 13:48 | 40m | -14 / -18 | IN3OWY | -20 / -15 | 3 | Partial capture |
| 10-05 13:45 | 40m | -11 / - | OH3MB | -7 / 0 | 3 | Partial capture |
| 10-05 13:43 | 40m | -8 / - | DC9GT | - / -12 | 2 | Partial capture |
| 10-05 13:41 | 40m | -6 / -4 | HA7TM | +9 / +2 | 5 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 125145 -23 1917 SQ4KBF YD0ATZ RR73 131945 -24 1827 SQ4KBF EA8ACW 73 075145 -13 2460 SQ4KBF JF1RYU R-16 080545 -14 2393 SQ4KBF JH3CUL PM74 (x3) 115015 -13 1258 SQ4KBF CT3MD R-02 (x2) 135845 -18 2359 SQ4KBF ZS5HR KG50 (x2) 054600 -1 488 SQ4KBF 4Z5NN -16 (x3)
UTC dB Audio Message 172000 -11 1335 OE5DML SQ4KBF 73 172030 -13 1336 CQ SQ4KBF KO13 (x2) 172115 -9 1335 SQ4KBF DC9JVN JN59 172130 -13 1336 OZ5AGJ SQ4KBF -09 (x2) 172230 -12 1336 CQ SQ4KBF KO13 a1 172300 -9 1336 ON4MGV SQ4KBF -15 (x2) 172430 -10 1336 CQ SQ4KBF KO13 172500 -11 1336 OK2RM SQ4KBF -14 172515 -22 1280 SQ4KBF OK2RM R-02 172530 -10 1336 OK2RM SQ4KBF RRR 172545 -17 1280 SQ4KBF OK2RM 73 172600 -14 1336 OK2RM SQ4KBF 73
UTC dB Audio Message 065115 -14 1739 SQ4KBF DA1ST JO41 065130 -6 1739 DA1ST SQ4KBF -16 065145 -12 1739 SQ4KBF DA1ST R-10 065200 -3 1739 DA1ST SQ4KBF RRR 065215 -9 1739 SQ4KBF DA1ST 73 065230 +0 1739 CQ SQ4KBF KO13 (x10)
UTC dB Audio Message 153345 -2 1240 SQ4KBF F4IOE JN06 (x3) 153500 -5 1264 F4IOE SQ4KBF -11 (x5) 153845 -2 1239 SQ4KBF F4IOE 73 153930 -15 1265 CQ SQ4KBF KO13 154000 -7 1264 IN3KSR SQ4KBF -14 (x2) 154130 -12 1264 CQ SQ4KBF KO13 154230 -11 1265 RO2T SQ4KBF -07 (x2)
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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