UA4CKN — 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 UA4CKN, decoded by SO8OO in southeastern Poland. 1,889 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 114 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-22.
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 1,889 FT8 messages attributed to UA4CKN as the transmitting token by decoded message structure across 114 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (33%), followed by 80 m (32%) and 20 m (24%). Most decodes (65%) fell within the six-hour window 16:00-22:00 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: 2026-10-22 14:47 UTC
Observed FT8 message patterns
- Attributed sample
- 1,889 messages
- Active dates
- 114 UTC dates
- Estimated median S/N
- -11 dB
- Estimated 10th-90th percentile
- -20 to -2.8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 479, moderate (-15 to -9 dB) 789, strong (≥ -8 dB) 621.
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 UA4CKN 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 UA4CKN
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
- LO31 · 501 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,774 km (approx.)
- Last such locator decoded
- 2026-10-21 20:19 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 | UA4CKN S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-22 17:07 | 160m | - / -21 | R3LA | 0 / - | 2 | ✓ Closing fragment |
| 10-22 16:43 | 160m | - / -13 | UD8D | -14 / - | 2 | ✓ Closing fragment |
| 10-22 15:32 | 160m | - / -23 | RJ3DC | -20 / - | 3 | ✓ Closing fragment |
| 10-22 15:04 | 80m | - / -5 | RA5AD | -5 / - | 2 | ✓ Closing fragment |
| 10-22 14:32 | 40m | - / - | R3KSJ | 0 / - | 2 | ✓ Closing fragment |
| 10-22 14:27 | 40m | -14 / -4 | R1QF/P | -16 / -4 | 3 | ✓ Full exchange observed |
| 10-22 04:40 | 40m | -10 / 0 | R3DII | -6 / -16 | 4 | ✓ Full exchange observed |
| 10-22 04:40 | 40m | -14 / - | RZ1OA | - / -6 | 2 | Partial capture |
| 10-21 21:43 | 160m | -14 / - | ON8DM | - / -15 | 2 | Partial capture |
| 10-21 21:37 | 160m | -17 / - | EC6AAE | - / -16 | 3 | Partial capture |
| 10-21 21:34 | 160m | -14 / 0 | R5AJ | +3 / -3 | 4 | ✓ Full exchange observed |
| 10-21 21:24 | 160m | -9 / - | F4DSK | - / -11 | 3 | Partial capture |
| 10-21 21:03 | 160m | -8 / - | F1PBZ | - / -22 | 2 | Partial capture |
| 10-21 20:56 | 160m | -6 / - | OH4SS | - / -6 | 2 | Partial capture |
| 10-21 20:54 | 160m | -12 / - | SP3SLA | - / -7 | 2 | Partial capture |
| 10-21 20:51 | 160m | -14 / - | DG5CST | - / -10 | 2 | Partial capture |
| 10-21 20:49 | 160m | -13 / - | EU6MM | - / +2 | 3 | Partial capture |
| 10-21 20:46 | 160m | -10 / -12 | DO6SHB | -13 / -24 | 6 | ✓ Full exchange observed |
| 10-21 20:43 | 160m | -10 / -19 | R2FC | -6 / -13 | 5 | ✓ Full exchange observed |
| 10-21 20:31 | 160m | -19 / -15 | G0OIL | -10 / - | 3 | ✓ Closing observed |
| 10-21 20:29 | 160m | -22 / - | G0OIL | - / -9 | 2 | Partial capture |
| 10-21 20:20 | 160m | -14 / - | LZ2ZG | - / -15 | 2 | Partial capture |
| 10-21 20:15 | 160m | -18 / - | R2FC | - / -15 | 6 | Partial capture |
| 10-21 19:52 | 160m | -16 / - | R4FES | - / -16 | 3 | ✓ Closing fragment |
| 10-21 19:51 | 160m | -6 / - | SP3IBS | +16 / -10 | 3 | ✓ Closing observed |
| 10-21 19:26 | 80m | -5 / -22 | DA6EE | +15 / -19 | 5 | ✓ Full exchange observed |
| 10-21 18:32 | 160m | - / -15 | EU1KY | +24 / - | 2 | ✓ Closing fragment |
| 10-21 17:56 | 160m | - / -7 | OH4TQ | +3 / - | 2 | ✓ Closing fragment |
| 10-21 17:31 | 160m | - / -9 | RU3XU | -13 / - | 4 | Partial capture |
| 10-20 05:37 | 40m | - / +6 | RA5AD | -6 / - | 2 | ✓ Closing fragment |
| 10-20 05:16 | 40m | - / - | DJ0MAB | +2 / - | 2 | Partial capture |
| 10-20 04:48 | 40m | - / - | F1IQH | -11 / - | 3 | Partial capture |
| 10-20 04:37 | 40m | -17 / - | UA9SY | - / -5 | 2 | ✓ Closing fragment |
| 10-20 04:32 | 40m | -17 / -3 | ON8WR | -9 / -18 | 4 | ✓ Full exchange observed |
| 10-20 04:28 | 40m | -17 / -11 | DJ0MAB | 0 / -16 | 8 | ✓ Full exchange observed |
| 10-20 04:13 | 40m | - / - | HB9ZHK | -22 / - | 2 | Partial capture |
| 10-20 04:10 | 40m | -16 / - | RZ6AFN | - / -11 | 2 | Partial capture |
| 10-18 18:13 | 160m | - / -7 | R7MR | -8 / - | 2 | ✓ Closing fragment |
| 10-18 17:01 | 160m | - / -16 | R1FD | 0 / - | 2 | ✓ Closing fragment |
| 10-18 06:44 | 40m | - / +10 | R3ZBH | -12 / - | 2 | ✓ Closing fragment |
| 10-17 22:44 | 160m | -18 / -16 | IS0JHQ | -2 / -24 | 8 | ✓ Full exchange observed |
| 10-17 22:34 | 160m | -18 / - | LA9JKA | -12 / -19 | 8 | Partial capture |
| 10-17 22:17 | 160m | -19 / -15 | SP3HUU | +4 / -19 | 4 | ✓ Full exchange observed |
| 10-17 22:12 | 160m | -20 / -11 | R5KH | -16 / -4 | 5 | ✓ Full exchange observed |
| 10-17 21:40 | 160m | - / -14 | SP8NR | +6 / - | 2 | ✓ Closing fragment |
| 10-17 21:33 | 160m | - / -8 | RK3AW | -12 / - | 2 | ✓ Closing fragment |
| 10-17 21:18 | 160m | - / -10 | SQ5MJX | +8 / - | 2 | ✓ Closing fragment |
| 10-17 20:48 | 160m | - / -8 | OH3JP | -9 / - | 2 | ✓ Closing fragment |
| 10-17 20:42 | 160m | - / -13 | UA7K | -2 / - | 2 | ✓ Closing fragment |
| 10-17 17:15 | 160m | - / -17 | UA9OR | -24 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 213430 -15 1925 R5AJ UA4CKN RR73 213445 +3 1925 UA4CKN R5AJ 73 213700 -14 1744 EC6AAE UA4CKN -16 (x3) 214300 -16 2038 ON8DM UA4CKN -15 (x2) 153215 -18 1452 UA4CKN RJ3DC KO95 (x3) 163415 -18 1251 UA4CKN RO3ZW R-10 164315 -13 1337 UA4CKN UD8D -13 (x2) 170715 +2 2267 UA4CKN R3LA R-21 (x2)
UTC dB Audio Message 191045 -12 992 CQ UA4CKN LO31 191415 -10 2059 UA4CKN OZ5THY JO46 (x2) 173015 -10 1900 UA4CKN RZ4FO R-06 174730 -9 836 UA4CKN RA1AGA R-16 172300 -15 2218 UA4CKN R8PG R-14 172700 -3 2582 UA4CKN RD9U 73 192200 -14 1966 RC6ZY UA4CKN -18 192645 -2 350 DA6EE UA4CKN -19 (x2) 192730 +12 349 UA4CKN DA6EE R-22 192745 -9 350 DA6EE UA4CKN RR73 192800 +18 349 UA4CKN DA6EE 73 150445 -5 1900 UA4CKN RA5AD R-05 (x2)
UTC dB Audio Message 044000 -16 2185 RZ1OA UA4CKN -06 044030 -11 948 R3DII UA4CKN -16 044045 -5 948 UA4CKN R3DII R+00 044100 -10 947 R3DII UA4CKN RR73 044115 -6 947 UA4CKN R3DII 73 044200 -11 2185 RZ1OA UA4CKN -13 142745 -14 2500 R1QF/P UA4CKN -04 142800 -14 2500 UA4CKN R1QF/P R-04 (x2) 142900 -11 2780 R3KSJ UA4CKN -02 143215 -1 2780 UA4CKN R3KSJ 73 (x2) 143615 -5 504 UA4CKN UA3IAG R-03 144700 -19 1235 R1BRY UA4CKN RR73 144745 -12 487 R8UJ UA4CKN -18
UTC dB Audio Message 150245 +4 632 R7WA UA4CKN -17 150900 -1 655 R9MDA UA4CKN -19 151045 -11 914 UA4CKN G8IXM JO02 151100 -8 655 CQ UA4CKN LO31 151115 +4 655 UA4CKN F1IQH JN27 151130 -2 655 CQ UA4CKN LO31 151145 +6 655 UA4CKN F1IQH JN27 151200 +0 655 CQ UA4CKN LO31 151215 +5 655 UA4CKN F1IQH JN27 (x2) 151245 -1 1001 UA4CKN EI4JFB IO63 151330 -6 656 EI4JFB UA4CKN RR73 151400 +0 655 CQ UA4CKN LO31 (x2) 151530 -6 655 RX0AT UA4CKN -13
UTC dB Audio Message 152200 +10 2875 UA4CKN GW8DX R-22 (x2) 152300 +14 2815 UA4CKN RR73; F4AXK <GW8DX> -12 081115 -15 1018 UA4CKN R7IA R-04 (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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