YO8CNA — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving YO8CNA, decoded by SO8OO in southeastern Poland. 221 FT8 messages attributed to this token as transmitter, on 20m, across 13 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-08-23.
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 221 FT8 messages attributed to YO8CNA as the transmitting token by decoded message structure across 13 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Most decodes (60%) fell within the six-hour window 12:00-18:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (66%); the estimated median was -6 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 221 messages
- Active dates
- 13 UTC dates
- Estimated median S/N
- -6 dB
- Estimated 10th-90th percentile
- -14 to +2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 66, strong (≥ -8 dB) 146.
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 YO8CNA 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 YO8CNA
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
- KN37 · 162 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 468 km (approx.)
- Last such locator decoded
- 2026-08-23 09:31 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 | YO8CNA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-11 03:02 | 40m | - / - | UB6HJZ | -6 / - | 2 | Partial capture |
| 08-28 10:18 | 20m | - / - | LA1SNA | -16 / - | 2 | Partial capture |
| 08-28 10:17 | 20m | - / - | F4BYA | +2 / - | 8 | Partial capture |
| 08-27 09:51 | 20m | - / -17 | UT7UJ | +1 / - | 6 | ✓ Closing fragment |
| 08-27 09:47 | 20m | - / -17 | OS4K | -2 / - | 6 | Partial capture |
| 08-27 09:45 | 20m | - / +5 | IK4LZH | +15 / - | 4 | ✓ Closing fragment |
| 08-27 09:33 | 20m | - / - | EA1CQ | -14 / - | 2 | Partial capture |
| 08-27 06:21 | 20m | - / -4 | F1ROA | +1 / - | 4 | ✓ Closing fragment |
| 08-27 06:20 | 20m | - / - | F4HSB | -5 / - | 3 | Partial capture |
| 08-27 06:19 | 20m | - / -19 | PE0V | -8 / - | 4 | Partial capture |
| 08-27 06:14 | 20m | - / -9 | ON1JP | -6 / - | 5 | Partial capture |
| 08-27 05:57 | 20m | - / - | EA5HM | -14 / - | 2 | Partial capture |
| 08-27 05:53 | 20m | - / - | LA1SNA | -8 / - | 2 | Partial capture |
| 08-27 05:49 | 20m | - / -11 | ON4JPE | +10 / - | 7 | ✓ Closing fragment |
| 08-27 05:32 | 20m | - / -12 | SV8NAJ | -11 / - | 7 | Partial capture |
| 08-27 05:31 | 20m | - / -4 | R4FDW | -10 / - | 12 | Partial capture |
| 08-27 05:28 | 20m | - / -11 | F1PBZ | +4 / - | 2 | ✓ Closing fragment |
| 08-27 05:28 | 20m | - / - | RZ4FWA | +6 / - | 4 | Partial capture |
| 08-24 10:02 | 20m | - / - | PD7LB | -12 / - | 4 | Partial capture |
| 08-23 16:21 | 20m | - / - | MI7JQH | -8 / - | 3 | Partial capture |
| 08-23 12:42 | 20m | - / - | HB9HYO | -10 / - | 2 | Partial capture |
| 08-23 12:40 | 20m | - / - | DB1EF | -8 / - | 3 | Partial capture |
| 08-23 12:40 | 20m | - / -13 | ON1JP | -4 / - | 4 | Partial capture |
| 08-23 09:31 | 20m | - / - | DL7ARV | -7 / - | 4 | Partial capture |
| 08-23 09:29 | 20m | - / - | DL1R | +5 / - | 10 | Partial capture |
| 08-23 09:24 | 20m | +3 / -7 | PD0PMF | +10 / - | 5 | ✓ Closing observed |
| 08-23 09:23 | 20m | - / - | IW5ALZ | -4 / - | 2 | Partial capture |
| 08-23 09:20 | 20m | - / - | F4ECT | +5 / - | 2 | Partial capture |
| 08-23 09:17 | 20m | - / - | DL7ARV | -4 / - | 7 | Partial capture |
| 08-23 09:16 | 20m | - / - | IW5ALZ | -4 / - | 3 | Partial capture |
| 08-23 09:15 | 20m | - / - | M7TUP | -2 / - | 2 | Partial capture |
| 08-23 09:13 | 20m | - / - | DL2ZJA | -6 / - | 6 | Partial capture |
| 08-23 09:06 | 20m | - / -11 | F1PBZ | +17 / - | 3 | Partial capture |
| 08-23 09:02 | 20m | - / - | PD0PWH | -3 / - | 3 | Partial capture |
| 08-17 17:07 | 20m | -7 / -13 | MW8OEG | -8 / -9 | 16 | ✓ Full exchange observed |
| 08-17 17:04 | 20m | -4 / - | BH3WBQ | - / - | 4 | Partial capture |
| 08-17 17:03 | 20m | +2 / - | MW8OEG | - / - | 2 | Partial capture |
| 08-17 16:57 | 20m | -16 / - | 7X2KF | - / - | 2 | ✓ Closing fragment |
| 08-17 16:49 | 20m | -8 / -10 | IZ8EDI | -16 / -6 | 3 | ✓ Full exchange observed |
| 08-17 16:48 | 20m | - / - | F4AGZ | -14 / - | 2 | Partial capture |
| 08-17 16:42 | 20m | -8 / - | DF1WR | - / -8 | 2 | Partial capture |
| 08-17 16:32 | 20m | -9 / - | BH3WBQ | - / - | 6 | Partial capture |
| 08-17 16:15 | 20m | - / -11 | UA4CDN | -12 / - | 2 | Partial capture |
| 08-17 16:13 | 20m | - / -1 | 2W0YOX | -6 / - | 5 | Partial capture |
| 08-17 07:13 | 20m | - / - | SV1EKI | -15 / - | 6 | Partial capture |
| 08-17 07:07 | 20m | - / - | DL2BCY | -18 / - | 3 | Partial capture |
| 08-17 07:07 | 20m | - / - | SV1EKI | -13 / - | 2 | Partial capture |
| 08-12 10:36 | 10m | - / -19 | F1PBZ | -10 / - | 2 | Partial capture |
| 08-01 10:53 | 20m | - / -18 | PD1HBL | -7 / - | 4 | Partial capture |
| 08-01 10:44 | 20m | - / - | F4LML | -9 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 024430 -3 2305 YO8CNA UB6HJZ LN04 024700 -19 2287 YO8CNA RO6G -08 030200 -7 2304 YO8CNA UB6HJZ LN04 (x2)
UTC dB Audio Message 095215 -3 1349 YO8CNA UT7UJ -17 (x4) 095945 +7 2596 YO8CNA PD9FLX JO22 101715 -4 2715 YO8CNA F4BYA JN19 (x2) 101815 -17 1313 YO8CNA LA1SNA JO49 101815 +4 2715 YO8CNA F4BYA JN19 (x2) 101915 -16 1314 YO8CNA LA1SNA JO49 101915 +4 2715 YO8CNA F4BYA JN19 (x4)
UTC dB Audio Message 094100 -16 1940 YO8CNA DK7ZT +22 094200 -11 2610 YO8CNA TM2WWA -07 094230 -6 1542 YO8CNA I4BMJ JN54 (x2) 094330 -12 570 YO8CNA DF9JL JO31 094330 -4 1540 YO8CNA I4BMJ JN54 094400 -12 570 YO8CNA DF9JL R+27 (x2) 095100 -12 571 YO8CNA IK1MJK 73 095330 -10 2610 YO8CNA TM2WWA -09 (x2) 095930 -10 2509 YO8CNA DO4MTB JO41 103615 -12 2635 YO8CNA F1PBZ -19 (x2) 103845 -12 926 YO8CNA UW5EHL R-07
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.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee