KF8EXX — 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 KF8EXX, decoded by SO8OO in southeastern Poland. 1,223 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 35 UTC dates in the available aggregate history. Observed between 2026-06-30 and 2026-10-21.
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 1,223 FT8 messages attributed to KF8EXX as the transmitting token by decoded message structure across 35 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (69%), followed by 40 m (17%) and 20 m (15%). Most decodes (94%) fell within the six-hour window 00:00-06:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.
Overview
Bands
Last attributed message: 2026-10-21 05:51 UTC
Observed FT8 message patterns
- Attributed sample
- 1,223 messages
- Active dates
- 35 UTC dates
- Estimated median S/N
- -14 dB
- Estimated 10th-90th percentile
- -22 to -7 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 501, moderate (-15 to -9 dB) 539, strong (≥ -8 dB) 183.
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 KF8EXX 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 KF8EXX
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
- EM98 · 431 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 7,628 km (approx.)
- Last such locator decoded
- 2026-10-21 05:51 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 | KF8EXX S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-21 06:23 | 40m | - / - | IK4LZH | +2 / - | 2 | Partial capture |
| 10-21 06:23 | 40m | - / -19 | G0JEI | -10 / - | 3 | Partial capture |
| 10-21 06:21 | 40m | - / -10 | F1PBZ | +4 / - | 2 | ✓ Closing fragment |
| 10-21 06:17 | 40m | - / -10 | GJ0KYZ | -6 / - | 2 | ✓ Closing fragment |
| 10-21 06:08 | 80m | - / - | DL6UM | 0 / - | 4 | Partial capture |
| 10-21 05:59 | 80m | - / -11 | EA2EJO | -19 / - | 4 | ✓ Closing fragment |
| 10-21 05:57 | 80m | - / -10 | 2E0FHM | -7 / - | 4 | ✓ Closing fragment |
| 10-21 05:57 | 80m | - / -7 | DL2SWU | 0 / - | 6 | ✓ Closing fragment |
| 10-21 05:56 | 80m | - / - | OH2BPU | +1 / - | 2 | Partial capture |
| 10-21 05:55 | 80m | - / - | OZ6G | 0 / - | 4 | Partial capture |
| 10-21 05:55 | 80m | - / -12 | SP9MOC | +4 / - | 8 | Partial capture |
| 10-21 05:54 | 80m | - / -11 | IX1HOF | -16 / - | 3 | ✓ Closing fragment |
| 10-21 05:51 | 80m | - / - | DO4UM | -3 / - | 7 | Partial capture |
| 10-21 05:51 | 80m | - / - | OZ6G | +4 / - | 2 | Partial capture |
| 10-21 05:49 | 80m | -24 / -14 | G4OWT | -7 / - | 4 | ✓ Closing observed |
| 10-21 05:49 | 80m | - / -18 | DM2GG | -3 / - | 3 | ✓ Closing fragment |
| 10-21 05:49 | 80m | - / -16 | ES5PC | -11 / - | 10 | Partial capture |
| 10-21 05:47 | 80m | - / - | DO2ZZ | -10 / - | 3 | Partial capture |
| 10-21 05:40 | 80m | - / - | DA125RH | -4 / - | 4 | Partial capture |
| 10-21 05:39 | 80m | - / -13 | IK3VZO | -12 / - | 7 | ✓ Closing fragment |
| 10-21 05:38 | 80m | - / -19 | ES5PC | -9 / - | 7 | Partial capture |
| 10-21 05:35 | 80m | - / -7 | DJ3AA | +13 / - | 3 | ✓ Closing fragment |
| 10-21 05:32 | 80m | - / - | PA0MUS | -18 / - | 3 | Partial capture |
| 10-21 05:30 | 80m | - / -13 | 2W0YOX | -8 / - | 6 | ✓ Closing fragment |
| 10-21 05:28 | 80m | - / -16 | 9A3TGT | -4 / - | 4 | ✓ Closing fragment |
| 10-21 05:25 | 80m | -15 / -14 | IK3VZO | -11 / -17 | 4 | Partial capture |
| 10-21 05:24 | 80m | - / -18 | YO7CFD | +12 / - | 9 | Partial capture |
| 10-21 05:18 | 80m | - / - | DO2NM | -4 / - | 4 | Partial capture |
| 10-21 05:18 | 80m | - / -10 | PE1KWE | -2 / - | 5 | ✓ Closing fragment |
| 10-21 05:17 | 80m | - / - | M0IOY | -5 / - | 3 | ✓ Closing fragment |
| 10-21 05:16 | 80m | - / -10 | DG5PW | -5 / - | 3 | ✓ Closing fragment |
| 10-21 05:13 | 80m | - / - | OV9A | +2 / - | 2 | Partial capture |
| 10-21 05:12 | 80m | - / - | OM8FR | +8 / - | 3 | Partial capture |
| 10-21 05:10 | 80m | -20 / -9 | OH2CLX | -3 / -11 | 5 | ✓ Full exchange observed |
| 10-21 05:10 | 80m | -14 / -16 | SP9UPH | +14 / -14 | 5 | ✓ Full exchange observed |
| 10-21 05:07 | 80m | -12 / -16 | DO1BOC | -6 / -21 | 6 | ✓ Full exchange observed |
| 10-21 05:07 | 80m | - / - | DO5AX | -20 / - | 2 | Partial capture |
| 10-21 05:07 | 80m | -14 / -13 | SP9JBP | +8 / -9 | 5 | ✓ Full exchange observed |
| 10-21 05:04 | 80m | -13 / -8 | F4AAS | -21 / - | 5 | ✓ Closing observed |
| 10-21 05:02 | 80m | - / -8 | DL1JEL | -1 / - | 7 | ✓ Closing fragment |
| 10-21 05:00 | 80m | -11 / -2 | DA1ST | +2 / -10 | 10 | ✓ Full exchange observed |
| 10-21 05:00 | 80m | -9 / -4 | DL1MEV | +1 / -11 | 7 | ✓ Full exchange observed |
| 10-21 04:58 | 80m | - / -20 | HA3TBL | +6 / - | 5 | ✓ Closing fragment |
| 10-21 04:57 | 80m | - / - | RM2E | +1 / - | 2 | Partial capture |
| 10-21 04:57 | 80m | -9 / -7 | DF0KK | +5 / -7 | 4 | ✓ Full exchange observed |
| 10-21 04:54 | 80m | -6 / - | IU5RBX | -16 / -17 | 3 | Partial capture |
| 10-21 04:49 | 80m | - / - | YO2UKG | -2 / - | 2 | Partial capture |
| 10-21 04:49 | 80m | - / -18 | IK4DCW | -4 / - | 3 | ✓ Closing fragment |
| 10-21 04:48 | 80m | - / -11 | SV1HFE | -16 / - | 2 | Partial capture |
| 10-21 04:47 | 80m | - / - | IW3AGO | +4 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 025845 -15 1354 KF8EXX M9XPN IO91 025845 -9 681 KF8EXX F5MDW RR73 025945 -7 1354 KF8EXX M9XPN 73 061330 +0 833 KF8EXX RR73; SP5DU <...> -04 061715 -5 2520 KF8EXX GJ0KYZ -10 (x2) 062130 +5 545 KF8EXX F1PBZ -10 062130 -18 1104 KF8EXX EA5SW +00 062200 +2 545 KF8EXX F1PBZ RR73 062300 -10 738 KF8EXX G0JEI -19 062330 -1 433 KF8EXX IK4LZH JN54 062330 -8 738 KF8EXX G0JEI -19 062400 +4 433 KF8EXX IK4LZH JN54 062400 -12 738 KF8EXX G0JEI -19 062400 -19 1104 KF8EXX EA5SW 73
UTC dB Audio Message 055930 -18 2128 KF8EXX EA2EJO IN83 055930 +11 2497 KF8EXX DL8FL JN48 055930 +0 1705 KF8EXX DL2SWU 73 055930 -9 1046 KF8EXX 2E0FHM R-10 060000 -14 1538 KF8EXX MM0JTV IO75 060000 -20 2128 KF8EXX EA2EJO R-11 060000 -7 1046 KF8EXX 2E0FHM R-10 060030 -18 2128 KF8EXX EA2EJO 73 060100 -7 1046 KF8EXX 2E0FHM 73 060400 -21 1737 KF8EXX SA7BYQ -15 060700 -6 1046 KF8EXX 2E0FHM IO92 060830 -3 1054 KF8EXX DL6UM JO60 (x4)
UTC dB Audio Message 145100 -15 1581 KF8EXX CS7BPG IN51 (x4) 161945 -10 1642 KF8EXX EA7J IM77 161730 -14 2495 KF8EXX CR7BUW R+08
UTC dB Audio Message 045330 -8 894 KF8EXX F1IGI -14
UTC dB Audio Message 212430 -19 2213 KC3BTV KF8EXX R-15 (x2) 212515 -16 1198 KF8EXX AB3JS FM29 212600 -13 2214 CQ KF8EXX EM98 (x2) 212700 -12 2214 UW5KW KF8EXX -04 (x2) 212800 -13 2213 CQ KF8EXX EM98 213100 -8 2214 PA2SVD KF8EXX -24 (x3) 023630 -1 2477 KF8EXX IK2ZJR JN45 (x3) 060745 -17 2574 J88IH KF8EXX EM98
UTC dB Audio Message 043645 -17 2132 KF8EXX PE1NPS R-21 (x2) 043730 -7 1210 KF8EXX OZ1HYM JO44 043745 -17 2132 KF8EXX PE1NPS R-21 043800 -5 1209 KF8EXX OZ1HYM JO44 (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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