S57AM — 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 S57AM, decoded by SO8OO in southeastern Poland. 1,882 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 40 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-12.
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 1,882 FT8 messages attributed to S57AM as the transmitting token by decoded message structure across 40 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (29%), followed by 20 m (28%) and 40 m (26%). Several six-hour UTC windows tied for the largest share (95%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (72%); the estimated median was -3 dB.
Overview
Bands
Last attributed message: 2026-10-12 20:39 UTC
Observed FT8 message patterns
- Attributed sample
- 1,882 messages
- Active dates
- 40 UTC dates
- Estimated median S/N
- -3 dB
- Estimated 10th-90th percentile
- -17 to +7 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 229, moderate (-15 to -9 dB) 295, strong (≥ -8 dB) 1,358.
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 S57AM 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 S57AM
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
- JN66 · 1,074 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 755 km (approx.)
- Last such locator decoded
- 2026-10-12 20:39 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 | S57AM S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-12 20:39 | 80m | - / - | JA1ILA | -6 / - | 4 | Partial capture |
| 10-12 20:36 | 80m | +11 / +4 | ON4MAP | -8 / -7 | 7 | ✓ Full exchange observed |
| 10-12 20:35 | 80m | +12 / - | SP9AU | -8 / -7 | 4 | ✓ Full exchange observed |
| 10-12 20:32 | 80m | +8 / - | DC0GL | +6 / +1 | 6 | ✓ Full exchange observed |
| 10-12 20:32 | 80m | +11 / -4 | SP1JA | -6 / -10 | 6 | ✓ Full exchange observed |
| 10-12 20:28 | 80m | +10 / - | DO6KGS | - / -18 | 6 | ✓ Closing fragment |
| 10-12 20:24 | 80m | +8 / -3 | SP1RKT | +5 / - | 4 | ✓ Closing observed |
| 10-12 20:24 | 80m | - / - | JA1ILA | +1 / - | 7 | Partial capture |
| 10-12 20:20 | 80m | +5 / - | DL3HO | - / -9 | 2 | ✓ Closing fragment |
| 10-12 20:18 | 80m | +4 / - | EA4FAM | - / -11 | 2 | ✓ Closing fragment |
| 10-12 20:16 | 80m | +6 / - | EA1EA | - / -16 | 2 | ✓ Closing fragment |
| 10-12 20:13 | 80m | - / - | DL3XRZ | -16 / - | 2 | Partial capture |
| 10-12 20:12 | 80m | +1 / - | EA4FAM | - / -23 | 5 | Partial capture |
| 10-12 20:10 | 80m | +3 / - | M3FGR | -15 / -12 | 2 | Partial capture |
| 10-12 20:08 | 80m | +6 / -6 | SP4JEY | -7 / +1 | 5 | ✓ Full exchange observed |
| 10-12 20:05 | 80m | -1 / -22 | JG3TRB | -8 / -10 | 6 | ✓ Full exchange observed |
| 10-12 20:05 | 80m | 0 / -8 | SA6LDQ | -11 / -20 | 5 | ✓ Full exchange observed |
| 10-12 20:00 | 80m | +2 / -9 | M8LOD | -21 / -12 | 5 | ✓ Full exchange observed |
| 10-12 19:59 | 80m | +2 / +6 | IU2THY | +12 / - | 4 | ✓ Full exchange observed |
| 10-12 17:41 | 40m | +2 / - | R3UDU | - / -11 | 6 | ✓ Closing fragment |
| 10-12 17:37 | 40m | +4 / +6 | DL7ROB | -7 / +3 | 7 | ✓ Full exchange observed |
| 10-12 17:35 | 40m | +2 / - | DH9ET | - / -10 | 3 | Partial capture |
| 10-12 17:30 | 40m | +1 / - | R3UDU | -18 / -8 | 9 | Partial capture |
| 10-12 17:27 | 40m | +1 / - | DB5HA | - / 0 | 2 | ✓ Closing fragment |
| 10-12 17:27 | 40m | -1 / -15 | S56DS | -8 / -12 | 4 | ✓ Full exchange observed |
| 10-12 17:25 | 40m | 0 / - | R3PCB | - / -4 | 2 | ✓ Closing fragment |
| 10-12 17:23 | 40m | +2 / - | UT7KF | - / -13 | 4 | ✓ Closing fragment |
| 10-12 17:21 | 40m | -1 / - | IU6WSD | - / -6 | 2 | ✓ Closing fragment |
| 10-12 17:17 | 40m | 0 / - | R3UDU | - / -11 | 7 | Partial capture |
| 10-12 17:15 | 40m | -1 / - | G0LCC | - / -25 | 3 | ✓ Closing fragment |
| 10-12 17:12 | 40m | +6 / +2 | SQ1EIC | -12 / -5 | 5 | ✓ Full exchange observed |
| 10-12 17:11 | 40m | +5 / - | F4NKT | - / -8 | 2 | ✓ Closing fragment |
| 10-12 17:08 | 40m | +5 / - | OK2ZUZ | - / +4 | 2 | ✓ Closing fragment |
| 10-12 17:05 | 40m | +2 / 0 | F4HKP | -9 / +1 | 5 | ✓ Full exchange observed |
| 10-12 16:57 | 40m | +6 / - | LB6LK | - / -1 | 2 | ✓ Closing fragment |
| 10-12 16:57 | 40m | +4 / +4 | DK9RC | -7 / -8 | 7 | ✓ Full exchange observed |
| 10-11 20:36 | 40m | - / - | DL1ECG | -18 / - | 2 | Partial capture |
| 10-11 20:28 | 40m | - / -13 | MW0DNF | -8 / - | 2 | Partial capture |
| 10-11 19:51 | 80m | +6 / - | OE3HPT | +10 / +8 | 5 | ✓ Full exchange observed |
| 10-11 19:49 | 80m | 0 / - | F4MWH | -9 / -5 | 5 | ✓ Full exchange observed |
| 10-11 19:47 | 80m | +6 / - | IK5ZTT | - / -2 | 3 | ✓ Closing fragment |
| 10-11 19:46 | 80m | +10 / -8 | R4FDD | -16 / -15 | 4 | ✓ Full exchange observed |
| 10-11 19:43 | 80m | +4 / - | RC9WC | - / -19 | 3 | Partial capture |
| 10-11 19:43 | 80m | - / - | R4FDD | -21 / - | 2 | Partial capture |
| 10-11 19:41 | 80m | +8 / - | JE2ERR | -7 / -22 | 3 | ✓ Closing observed |
| 10-11 19:39 | 80m | +8 / - | DF3TZ | +4 / +5 | 5 | ✓ Full exchange observed |
| 10-11 19:37 | 80m | +10 / - | RA1QCX | - / -11 | 3 | ✓ Closing fragment |
| 10-11 19:33 | 80m | +7 / +2 | OE5ABL | +3 / +10 | 5 | ✓ Full exchange observed |
| 10-11 19:33 | 80m | +9 / -2 | UR5EEW | +4 / +7 | 8 | ✓ Full exchange observed |
| 10-11 19:32 | 80m | +10 / - | DO1TEM | - / -16 | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 203615 -10 453 S57AM SP9AU 73 203630 +8 1839 CQ S57AM JN66 203645 -6 313 S57AM ON4MAP JO20 203700 +16 1839 ON4MAP S57AM -07 203715 -8 313 S57AM ON4MAP R+04 203730 +9 1839 ON4MAP S57AM -07 203745 -8 313 S57AM ON4MAP R+04 203800 +9 1839 ON4MAP S57AM RR73 203815 -10 313 S57AM ON4MAP 73 203830 +13 1839 CQ S57AM JN66 (x2) 203945 -8 2995 S57AM JA1ILA QM05 (x4)
UTC dB Audio Message 173830 +2 2044 DL7ROB S57AM +03 173845 -5 1151 S57AM DL7ROB R+06 173900 +6 2044 DL7ROB S57AM RR73 173915 -3 1151 S57AM DL7ROB 73 173930 +4 2044 CQ S57AM JN66 (x4) 174130 +1 2044 R3UDU S57AM -11 (x3) 174300 +4 2044 CQ S57AM JN66 174330 -3 2044 R3UDU S57AM RR73 (x3)
UTC dB Audio Message 180745 -1 1820 CQ S57AM JN66 180900 -1 2566 S57AM OZ2LIN JO46 180930 -15 1302 S57AM DF6DBF JO31 (x13)
UTC dB Audio Message 181200 -18 1958 S57AM TA3OER KN30 (x2) 144800 -17 2025 S57AM TA2R KN41 (x2) 143600 -15 2293 S57AM D2ACE RR73
UTC dB Audio Message 173745 -9 1761 M7GOA S57AM RR73 184915 -16 1724 RI1FJL S57AM JN66 (x13) 064930 -8 739 S57AM LZ1OPM KN22
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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