KA4JON — 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 KA4JON, decoded by SO8OO in southeastern Poland. 37 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, across 10 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-11-07.
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 37 FT8 messages attributed to KA4JON as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (81%), followed by 20 m (11%) and 60 m (8%). 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 -11 dB.
Overview
Bands
Last attributed message: 2026-11-07 01:47 UTC
Observed FT8 message patterns
- Attributed sample
- 37 messages
- Active dates
- 10 UTC dates
- Estimated median S/N
- -11 dB
- Estimated 10th-90th percentile
- -22 to -8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 17, strong (≥ -8 dB) 8.
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 KA4JON 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 KA4JON
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
- EM84 · 31 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,079 km (approx.)
- Last such locator decoded
- 2026-11-07 01:47 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 | KA4JON S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-05 23:07 | 40m | - / - | DK3JW | +4 / - | 4 | Partial capture |
| 11-05 23:04 | 40m | - / -12 | SV9QWC | -16 / - | 2 | ✓ Closing fragment |
| 10-28 02:15 | 40m | - / +8 | F8MRQ | -2 / - | 4 | ✓ Closing fragment |
| 10-24 02:39 | 40m | - / -5 | MI7XHT | -12 / - | 2 | Partial capture |
| 09-24 02:03 | 60m | - / -7 | PA4PA | +7 / - | 2 | ✓ Closing fragment |
| 09-23 02:07 | 60m | -18 / - | ER3ZW | -13 / - | 3 | ✓ Closing observed |
| 09-22 23:38 | 40m | -11 / - | 7Z1DN | - / - | 5 | Partial capture |
| 09-18 00:11 | 40m | -10 / - | W6E | - / - | 2 | Partial capture |
| 09-17 02:02 | 40m | -23 / - | W6R | - / - | 3 | Partial capture |
| 09-17 01:17 | 40m | -10 / - | W6R | - / - | 6 | Partial capture |
| 09-16 02:37 | 40m | -7 / - | W6L | - / - | 3 | ✓ Closing fragment |
| 09-16 02:30 | 80m | - / -4 | VP2MAA | -11 / - | 2 | ✓ Closing fragment |
| 08-31 01:58 | 20m | - / - | 5Z4VJ | -11 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 025645 -23 2198 SQ100PKP KA4JON EM84 013430 -8 1840 KA4JON EI2JD -17 023915 -12 2258 KA4JON MI7XHT -05 (x2) 021530 -2 2124 KA4JON F8MRQ JN17 (x4) 230415 -18 1916 KA4JON SV9QWC -12 (x2) 230745 +1 757 KA4JON DK3JW JN67 (x4) 014745 -20 2259 DL40EUDXF KA4JON EM84
UTC dB Audio Message 004615 -8 2788 9J2FI KA4JON EM84 020700 -14 2352 KA4JON UT9NA KN49 020715 -18 2094 ER3ZW KA4JON EM84 020830 -13 2020 KA4JON ER3ZW RR73 020845 -17 2094 ER3ZW KA4JON 73 020300 +6 264 KA4JON PA4PA -07 (x2)
UTC dB Audio Message 023015 -12 1081 KA4JON VP2MAA -04 (x2)
UTC dB Audio Message 015845 -8 1970 KA4JON 5Z4VJ KI88 (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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