KD4EXS — 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 KD4EXS, decoded by SO8OO in southeastern Poland. 9 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-07-31 and 2026-08-26.
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 9 FT8 messages attributed to KD4EXS as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (78%), followed by 80 m (22%). In this small sample, the estimated median decoder S/N was -15 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-08-26 00:14 UTC
Observed FT8 message patterns
- Attributed sample
- 9 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -15 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 5, strong (≥ -8 dB) 0.
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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with KD4EXS in decoded directed-looking exchanges:
Most frequent locator attributed to KD4EXS
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
- EM62 · 7 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,487 km (approx.)
- Last such locator decoded
- 2026-08-26 00:14 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 | KD4EXS S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-22 00:49 | 60m | - / +4 | EA1IOK | -4 / - | 15 | Partial capture |
| 10-22 00:46 | 60m | - / -5 | WP3UX | -19 / - | 5 | ✓ Closing fragment |
| 10-15 23:30 | 40m | - / -20 | F5NBU | +11 / - | 6 | Partial capture |
| 10-13 01:36 | 80m | - / -22 | KB1PA | -9 / - | 10 | Partial capture |
| 10-04 05:43 | 60m | - / -21 | DK9HN | -5 / - | 5 | ✓ Closing fragment |
| 10-04 05:41 | 60m | - / -8 | EA3CUU | -14 / - | 4 | ✓ Closing fragment |
| 10-04 05:36 | 60m | - / -8 | G4ATX | +1 / - | 5 | ✓ Closing fragment |
| 10-04 05:34 | 60m | - / -12 | OV1MF | -5 / - | 3 | ✓ Closing fragment |
| 10-04 05:34 | 60m | - / -10 | PE1MHY | -6 / - | 7 | ✓ Closing fragment |
| 10-04 05:29 | 60m | - / -12 | DL3OCF | 0 / - | 4 | ✓ Closing fragment |
| 10-04 05:22 | 60m | - / -14 | DL9NEI | 0 / - | 3 | ✓ Closing fragment |
| 10-04 05:21 | 60m | - / - | F6FTB | +3 / - | 9 | Partial capture |
| 10-04 05:20 | 60m | - / +3 | PA1RC | -2 / - | 2 | Partial capture |
| 10-04 05:20 | 60m | - / - | IK2DZN | +1 / - | 3 | Partial capture |
| 10-04 05:18 | 60m | - / -20 | DL1UDO | -5 / - | 3 | ✓ Closing fragment |
| 10-04 05:13 | 60m | - / -14 | YO2MAX | +9 / - | 3 | ✓ Closing fragment |
| 10-04 05:13 | 60m | - / -12 | PE1MHY | -11 / - | 4 | Partial capture |
| 10-04 02:08 | 60m | - / -12 | PA4PA | +4 / - | 2 | ✓ Closing fragment |
| 10-04 02:02 | 60m | - / -13 | PA4PA | +5 / - | 5 | ✓ Closing fragment |
| 10-04 01:44 | 60m | - / -15 | F5RRS | +3 / - | 3 | ✓ Closing fragment |
| 10-04 01:44 | 60m | - / - | PA4PA | +10 / - | 5 | Partial capture |
| 10-04 01:24 | 60m | - / - | F5RRS | +1 / - | 4 | Partial capture |
| 10-04 01:24 | 60m | - / -4 | F8NHF | -1 / - | 6 | Partial capture |
| 10-04 01:18 | 60m | - / - | PA4PA | +6 / - | 13 | Partial capture |
| 10-04 01:17 | 60m | - / -15 | PA4A | -1 / - | 5 | ✓ Closing fragment |
| 10-04 01:12 | 60m | - / - | DL1UDO | -1 / - | 2 | Partial capture |
| 10-04 01:06 | 60m | - / -15 | DK1ML | +3 / - | 2 | ✓ Closing fragment |
| 09-30 23:49 | 40m | - / - | F4FPR | -15 / - | 4 | Partial capture |
| 09-27 00:16 | 80m | - / - | N4DB | -7 / - | 2 | ✓ Closing fragment |
| 09-26 01:10 | 80m | - / -20 | ON6AA | +1 / - | 7 | Partial capture |
| 09-21 01:53 | 40m | - / -4 | NP3RK | -2 / - | 2 | ✓ Closing fragment |
| 09-20 03:00 | 40m | - / - | EA1HVS | -8 / - | 2 | Partial capture |
| 09-20 02:55 | 40m | - / -17 | IZ8DBJ | -4 / - | 2 | Partial capture |
| 09-20 02:54 | 40m | - / - | PD9OH | +9 / - | 3 | Partial capture |
| 09-20 02:38 | 40m | - / - | PD9OH | +7 / - | 3 | Partial capture |
| 09-19 02:30 | 40m | - / -8 | WT1A | -10 / - | 2 | ✓ Closing fragment |
| 09-18 23:13 | 40m | - / - | EB1LA | -12 / - | 4 | Partial capture |
| 09-16 05:01 | 80m | - / -18 | EA3AKY | -13 / - | 3 | ✓ Closing fragment |
| 09-16 04:59 | 80m | - / -15 | F1TXI | -17 / - | 5 | ✓ Closing fragment |
| 09-16 04:57 | 80m | - / - | EA3AKY | -15 / - | 3 | Partial capture |
| 09-16 04:57 | 80m | - / -14 | F4UJU | -7 / - | 5 | Partial capture |
| 09-16 04:55 | 80m | - / -18 | ON7GB | +8 / - | 4 | ✓ Closing fragment |
| 09-16 04:54 | 80m | - / -17 | F5OHW | +3 / - | 4 | ✓ Closing fragment |
| 09-16 04:23 | 60m | - / +2 | PE1MHY | -2 / - | 4 | Partial capture |
| 09-16 04:14 | 60m | - / -21 | IK4CBO | -6 / - | 5 | ✓ Closing fragment |
| 09-16 04:14 | 60m | - / -15 | ON8BB | +3 / - | 7 | ✓ Closing fragment |
| 09-16 04:10 | 60m | - / - | ON8BB | -6 / - | 3 | Partial capture |
| 08-31 01:35 | 40m | - / -15 | KP4LCA | -16 / - | 2 | ✓ Closing fragment |
| 08-29 00:23 | 40m | - / -15 | MI7XHT | -10 / - | 2 | Partial capture |
| 08-29 00:03 | 20m | - / -17 | 7Z1CZ | -8 / - | 4 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 004945 -8 1079 KD4EXS EA1IOK IN62 (x14) 011000 -4 462 KD4EXS RR73; K5PA <...> -20
UTC dB Audio Message 025545 -5 1579 KD4EXS IZ8DBJ R-17 030045 -11 2602 KD4EXS EA1HVS IN73 (x2) 015300 +1 994 KD4EXS NP3RK -04 (x2) 234900 -14 237 KD4EXS F4FPR IN88 (x4) 233015 +11 2548 KD4EXS F5NBU JN28 (x6)
UTC dB Audio Message 011300 +0 2251 KD4EXS ON6AA R-15 (x3) 001615 -6 772 KD4EXS N4DB R+14 (x2) 013615 -8 2133 KD4EXS KB1PA FN65 (x10)
UTC dB Audio Message 004100 -9 2135 KD4EXS W1AVK RRR (x10) 000300 -10 1578 KD4EXS 7Z1CZ -17 (x4) 000500 -7 904 KD4EXS TI5RR EK70
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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