YL3MM — 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 YL3MM, decoded by SO8OO in southeastern Poland. 1,233 FT8 messages attributed to this token as transmitter, on 80m, 40m, 10m, across 78 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-17.
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 1,233 FT8 messages attributed to YL3MM as the transmitting token by decoded message structure across 78 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (55%), followed by 80 m (41%) and 10 m (4%). Most decodes (83%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (73%); the estimated median was -1.9 dB.
Overview
Bands
Last attributed message: 2026-10-17 22:25 UTC
Observed FT8 message patterns
- Attributed sample
- 1,233 messages
- Active dates
- 78 UTC dates
- Estimated median S/N
- -1.9 dB
- Estimated 10th-90th percentile
- -15 to +10 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 105, moderate (-15 to -9 dB) 222, strong (≥ -8 dB) 906.
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 YL3MM 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 YL3MM
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
- KO27 · 736 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 867 km (approx.)
- Last such locator decoded
- 2026-10-17 22:25 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 | YL3MM S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-17 22:22 | 80m | +1 / -4 | DL/N0PNG | -11 / -5 | 3 | Partial capture |
| 10-17 22:20 | 80m | +7 / - | F6EAZ | - / - | 3 | Partial capture |
| 10-17 22:15 | 80m | -1 / - | KP4AA | - / -18 | 5 | ✓ Closing fragment |
| 10-17 08:23 | 10m | -4 / - | C91RU | - / - | 6 | Partial capture |
| 10-17 08:21 | 10m | -14 / - | UN6T | - / -14 | 2 | Partial capture |
| 10-17 08:17 | 10m | -11 / - | C91RU | - / - | 4 | Partial capture |
| 10-17 08:14 | 10m | -6 / - | 3W9T | - / - | 3 | Partial capture |
| 10-17 08:07 | 10m | -11 / - | SU8JOTA | - / - | 5 | Partial capture |
| 10-16 21:36 | 40m | - / +1 | IZ0ZIP | -2 / - | 2 | ✓ Closing fragment |
| 10-16 21:33 | 40m | -14 / - | S79VU | - / - | 2 | Partial capture |
| 10-15 17:19 | 80m | -1 / -14 | IK4TVP | +7 / 0 | 5 | ✓ Full exchange observed |
| 10-15 17:17 | 80m | +2 / -11 | SV1EAG | -12 / -10 | 5 | ✓ Full exchange observed |
| 10-14 18:18 | 40m | +3 / - | JA6CNL | - / - | 4 | Partial capture |
| 10-14 18:16 | 40m | +2 / - | OE9GWV | -8 / -4 | 4 | ✓ Closing observed |
| 10-14 18:14 | 40m | +10 / -7 | UN0GY | -8 / -4 | 6 | ✓ Full exchange observed |
| 10-14 18:07 | 40m | +16 / - | JH0BBA | - / -8 | 2 | Partial capture |
| 10-14 18:06 | 40m | - / -7 | F4FSY | -8 / - | 2 | Partial capture |
| 10-14 18:02 | 40m | +14 / - | ZL1VAH | - / -25 | 8 | ✓ Closing fragment |
| 10-14 18:00 | 40m | +2 / - | M7HNI | - / -6 | 2 | Partial capture |
| 10-13 17:30 | 40m | +4 / - | BG0FQU | - / - | 4 | Partial capture |
| 10-13 17:23 | 40m | +2 / - | BG0FQU | - / - | 2 | Partial capture |
| 10-13 15:35 | 10m | - / -13 | CR7BRV | -2 / - | 2 | ✓ Closing fragment |
| 10-12 21:37 | 80m | 0 / - | T77RN | - / - | 5 | Partial capture |
| 10-12 21:00 | 80m | +3 / - | LA1PHA | - / -10 | 2 | Partial capture |
| 10-12 20:59 | 80m | +5 / -2 | YO4NF | +4 / - | 3 | ✓ Closing observed |
| 10-12 20:57 | 80m | +3 / - | GM3CQD | - / -7 | 3 | ✓ Closing fragment |
| 10-12 20:52 | 80m | -14 / - | JJ2IJU | - / - | 3 | Partial capture |
| 10-12 18:35 | 40m | +8 / - | EY7BM | - / - | 6 | Partial capture |
| 10-12 18:28 | 40m | +19 / -10 | JI4POR | -9 / -15 | 7 | ✓ Full exchange observed |
| 10-12 18:25 | 40m | +5 / - | EY7BM | - / - | 4 | Partial capture |
| 10-12 18:22 | 40m | +4 / - | RC9WC | - / -10 | 5 | Partial capture |
| 10-05 17:52 | 40m | +2 / - | 7Z1MM | - / - | 5 | Partial capture |
| 10-05 17:48 | 40m | +4 / - | JY5IB | - / -14 | 6 | ✓ Closing fragment |
| 10-02 21:06 | 80m | +4 / - | VK6IR | - / -17 | 8 | ✓ Closing fragment |
| 10-02 21:04 | 80m | +6 / - | V51WH | - / - | 3 | Partial capture |
| 10-02 20:58 | 80m | +2 / - | V51VH | - / - | 3 | Partial capture |
| 10-02 20:55 | 80m | +6 / - | DK8HC | 0 / -3 | 3 | Partial capture |
| 10-02 20:50 | 80m | 0 / - | AP2HA | - / -11 | 5 | ✓ Closing fragment |
| 10-02 20:50 | 80m | +5 / - | OM3PR | +10 / - | 2 | ✓ Closing observed |
| 10-02 20:48 | 80m | +5 / -19 | DM8ET | -24 / -11 | 4 | ✓ Full exchange observed |
| 10-02 20:47 | 80m | - / - | OM3PR | +14 / - | 2 | Partial capture |
| 10-02 20:44 | 80m | +9 / - | 4L7T | - / -10 | 3 | ✓ Closing fragment |
| 09-25 18:43 | 80m | -5 / - | OD5XX | - / - | 3 | Partial capture |
| 09-25 18:40 | 80m | -6 / -16 | UN7LAN | -13 / -1 | 4 | Partial capture |
| 09-25 18:40 | 80m | -5 / 0 | YL2IV | -6 / - | 3 | ✓ Closing observed |
| 09-25 18:39 | 80m | -6 / - | DO5AX | - / -24 | 2 | Partial capture |
| 09-25 18:37 | 80m | -8 / - | PC2J | - / -3 | 3 | ✓ Closing fragment |
| 09-24 19:48 | 80m | -3 / -14 | 5B4AMM | +6 / - | 3 | Partial capture |
| 09-24 18:29 | 40m | -6 / - | 4Z5NZ | - / -12 | 6 | Partial capture |
| 09-24 18:17 | 40m | -8 / - | EA9DX | - / - | 11 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 172015 +0 1545 IK4TVP YL3MM R+00 172030 +10 1544 YL3MM IK4TVP RR73 172045 -2 1545 IK4TVP YL3MM 73 221500 +3 1503 KP4AA YL3MM KO27 (x5) 222000 +9 1304 F6EAZ YL3MM RRR (x3) 222200 +0 1113 DL/N0PNG YL3MM -05 (x2) 222245 -11 1114 YL3MM DL/N0PNG R-04 222515 +10 709 YB1LIN YL3MM KO27
UTC dB Audio Message 081500 -7 2518 3W9T YL3MM KO27 (x2) 081700 -6 2518 C91RU YL3MM KO27 (x4) 082130 -14 2197 UN6T YL3MM KO27 (x2) 082315 -2 405 C91RU YL3MM KO27 (x6) 122030 -20 1637 YL3MM C5R -13
UTC dB Audio Message 181645 +12 2646 UN0GY YL3MM KO27 181715 +3 1422 OE9GWV YL3MM -04 (x2) 181800 -7 1422 YL3MM OE9GWV 73 181845 +14 421 JA6CNL YL3MM KO27 (x4) 213115 -7 919 S79VU YL3MM KO27 (x3) 213630 -13 616 OD5ZZ YL3MM 73 213645 -8 616 YL3MM IZ0ZIP +01 (x2) 213815 -8 321 K2TQC YL3MM KO27
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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