K4MWB — 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 K4MWB, decoded by SO8OO in southeastern Poland. 40 FT8 messages attributed to this token as transmitter, on 80m, 60m, across 6 UTC dates in the available aggregate history. Observed between 2026-08-13 and 2026-10-28.
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 40 FT8 messages attributed to K4MWB as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (98%), followed by 60 m (3%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.
Overview
Bands
Last attributed message: 2026-10-28 00:19 UTC
Observed FT8 message patterns
- Attributed sample
- 40 messages
- Active dates
- 6 UTC dates
- Estimated median S/N
- -9 dB
- Estimated 10th-90th percentile
- -17 to -1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 17, strong (≥ -8 dB) 18.
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 K4MWB 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 K4MWB
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
- FM05 · 14 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 7,754 km (approx.)
- Last such locator decoded
- 2026-10-28 00:19 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 | K4MWB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-05 00:39 | 60m | - / -20 | ON1JP | -16 / - | 6 | Partial capture |
| 10-02 00:38 | 80m | - / -9 | SP5MXZ | +3 / - | 11 | Partial capture |
| 10-02 00:37 | 80m | -14 / -7 | LY5A | +10 / -10 | 5 | ✓ Full exchange observed |
| 10-02 00:35 | 80m | - / - | RO2X | +4 / - | 2 | Partial capture |
| 10-02 00:33 | 80m | -9 / - | CU6AB | - / -9 | 2 | Partial capture |
| 10-02 00:32 | 80m | - / - | UA4FKT | 0 / - | 4 | Partial capture |
| 09-27 23:23 | 60m | - / -12 | G4SRT | -4 / - | 3 | Partial capture |
| 09-26 23:45 | 60m | - / -15 | F6AOJ | +8 / - | 4 | ✓ Closing fragment |
| 09-23 23:47 | 80m | - / - | UA4FKT | -11 / - | 2 | Partial capture |
| 09-23 23:43 | 80m | - / -11 | OK1WE | +3 / - | 15 | Partial capture |
| 09-23 23:38 | 80m | - / -18 | EW8AAC | 0 / - | 3 | ✓ Closing fragment |
| 09-23 00:35 | 80m | -11 / +7 | G7RHF | -14 / - | 5 | Partial capture |
| 09-23 00:34 | 80m | - / - | DL4GCJ | +14 / - | 2 | Partial capture |
| 09-23 00:34 | 80m | - / -12 | YO4NF | +17 / - | 2 | Partial capture |
| 09-23 00:31 | 80m | -15 / -24 | RA4CX | +7 / -12 | 10 | ✓ Full exchange observed |
| 09-22 00:07 | 80m | -10 / - | K5VJZ | - / -4 | 2 | Partial capture |
| 09-22 00:06 | 80m | - / -20 | R3XBS | +4 / - | 3 | Partial capture |
| 09-22 00:06 | 80m | - / - | PE5TDM | -2 / - | 4 | Partial capture |
| 09-22 00:05 | 80m | -14 / - | N4YSA | - / +2 | 2 | ✓ Closing fragment |
| 09-22 00:05 | 80m | - / - | ON4MAP | -8 / - | 5 | Partial capture |
| 09-15 23:46 | 80m | - / -2 | EA8AJ | -13 / - | 2 | ✓ Closing fragment |
| 09-10 00:39 | 60m | - / -16 | PA4A | -1 / - | 3 | Partial capture |
| 08-31 00:40 | 80m | - / -15 | GM6URC | -4 / - | 5 | ✓ Closing fragment |
| 08-26 00:48 | 80m | - / -5 | PI4DX | +9 / - | 2 | ✓ Closing fragment |
| 08-26 00:46 | 80m | -20 / - | CX1T | - / - | 2 | Partial capture |
| 08-26 00:11 | 80m | - / - | SP1TJ | +12 / - | 3 | Partial capture |
| 08-26 00:06 | 80m | - / -14 | OH2MA | +10 / - | 7 | ✓ Closing fragment |
| 08-16 00:06 | 80m | - / - | UT7UA | +17 / - | 7 | Partial capture |
| 08-16 00:05 | 80m | - / -8 | HB9EFK | +16 / - | 2 | ✓ Closing fragment |
| 08-16 00:05 | 80m | - / - | OH3JP | +2 / - | 7 | Partial capture |
| 08-15 23:31 | 60m | - / -13 | PI4DX | 0 / - | 2 | ✓ Closing fragment |
| 08-14 00:15 | 80m | - / - | EA5HM | -8 / - | 3 | Partial capture |
| 08-14 00:15 | 80m | - / - | EA2EES | -17 / - | 2 | Partial capture |
| 08-14 00:14 | 80m | - / -14 | 9A5E | +14 / - | 3 | ✓ Closing fragment |
| 08-14 00:12 | 80m | - / - | DO5HB | +3 / - | 2 | Partial capture |
| 08-14 00:11 | 80m | - / -20 | LZ2VQ | +2 / - | 3 | Partial capture |
| 08-13 00:38 | 80m | -10 / - | KR4EOD | - / +4 | 2 | ✓ Closing fragment |
| 08-13 00:37 | 80m | -4 / - | N9ZJ | -17 / -6 | 3 | ✓ Closing observed |
| 08-13 00:35 | 80m | - / - | F8NHF | +2 / - | 8 | Partial capture |
| 08-13 00:35 | 80m | -7 / +1 | PI4DX | +4 / - | 3 | ✓ Closing observed |
| 08-13 00:33 | 80m | -7 / - | <...> | - / -16 | 2 | Partial capture |
| 08-13 00:30 | 80m | - / - | HB9MZI | -10 / - | 3 | Partial capture |
| 08-13 00:30 | 80m | - / - | LB0TH | -4 / - | 3 | Partial capture |
| 08-13 00:29 | 80m | - / - | DO5HB | -4 / - | 10 | Partial capture |
| 08-13 00:28 | 80m | - / - | DO8JB | +8 / - | 13 | Partial capture |
| 08-13 00:28 | 80m | -2 / - | K4BQP/4 | -22 / -16 | 6 | ✓ Closing observed |
| 08-13 00:27 | 80m | - / - | IK2TPX | +2 / - | 3 | Partial capture |
| 08-13 00:27 | 80m | -2 / -11 | SP1MGM | +11 / -16 | 5 | ✓ Full exchange observed |
| 08-13 00:24 | 80m | -8 / - | PI4DX | - / -3 | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 234615 +9 690 K4MWB F6AOJ JN08 (x3) 232330 -4 625 K4MWB G4SRT -12 (x3) 232500 -17 2303 K4MWB VE3ARF +10 003915 -16 1528 K4MWB ON1JP -20 (x6) 232115 -10 2289 K4MWB F5MYK RR73 001945 -8 2619 S9R K4MWB FM05
UTC dB Audio Message 003730 +11 797 K4MWB LY5A -07 003745 -16 1295 LY5A K4MWB R-10 003800 +9 797 K4MWB LY5A RR73 003815 -12 1295 LY5A K4MWB 73 003830 +5 1294 K4MWB SP5MXZ -09 (x11)
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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