S55DX — 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 S55DX, decoded by SO8OO in southeastern Poland. 1,902 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 77 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-23.
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 1,902 FT8 messages attributed to S55DX as the transmitting token by decoded message structure across 77 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (57%), followed by 80 m (19%) and 20 m (9%). Most decodes (88%) fell within the six-hour window 00:00-06:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (76%); the estimated median was -1.9 dB.
Overview
Bands
Last attributed message: 2026-10-23 04:11 UTC
Observed FT8 message patterns
- Attributed sample
- 1,902 messages
- Active dates
- 77 UTC dates
- Estimated median S/N
- -1.9 dB
- Estimated 10th-90th percentile
- -15 to +12 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 173, moderate (-15 to -9 dB) 289, strong (≥ -8 dB) 1,440.
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 S55DX 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 S55DX
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
- JN75 · 212 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 708 km (approx.)
- Last such locator decoded
- 2026-10-23 03:46 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 | S55DX S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-23 04:03 | 40m | -9 / - | V47NT | - / -9 | 4 | Partial capture |
| 10-23 04:00 | 40m | +5 / - | SP0YAGI | - / -10 | 3 | Partial capture |
| 10-23 03:55 | 40m | +2 / - | KC2V | - / -22 | 3 | Partial capture |
| 10-23 03:54 | 40m | -2 / - | V47NT | - / -6 | 7 | Partial capture |
| 10-23 03:46 | 80m | +19 / - | ON4MAP | - / -14 | 2 | ✓ Closing fragment |
| 10-23 03:40 | 80m | +10 / - | IZ5FSO | -11 / -1 | 4 | ✓ Closing observed |
| 10-23 03:40 | 80m | +10 / - | ON1JP | -18 / -13 | 4 | ✓ Full exchange observed |
| 10-23 03:38 | 80m | +8 / -9 | EI5JL | -22 / -21 | 5 | ✓ Full exchange observed |
| 10-23 03:37 | 80m | +12 / - | RW6HP | - / -6 | 2 | ✓ Closing fragment |
| 10-23 03:36 | 80m | +8 / - | R4FDK | - / -9 | 2 | ✓ Closing fragment |
| 10-23 03:30 | 80m | +12 / - | DK5OPA | -8 / -9 | 4 | ✓ Full exchange observed |
| 10-23 03:28 | 80m | +13 / - | KB3HGW | - / -13 | 4 | ✓ Closing fragment |
| 10-23 03:23 | 80m | +10 / - | AI4UC | - / -21 | 3 | Partial capture |
| 10-23 02:35 | 60m | -20 / - | EP2AES | - / -6 | 2 | ✓ Closing fragment |
| 10-23 02:34 | 60m | -20 / - | JT2ZZ | - / -17 | 3 | Partial capture |
| 10-21 04:07 | 40m | - / +1 | GJ0KYZ | -10 / - | 2 | ✓ Closing fragment |
| 10-21 03:56 | 60m | +12 / - | W2AJR | - / -22 | 3 | ✓ Closing fragment |
| 10-20 02:33 | 60m | +11 / - | CO7WT | - / - | 4 | Partial capture |
| 10-19 04:53 | 80m | +16 / +7 | DO5PY | 0 / -1 | 5 | ✓ Full exchange observed |
| 10-19 04:53 | 80m | - / - | G8TJQ | +7 / - | 3 | Partial capture |
| 10-19 04:46 | 80m | - / -4 | SM7WNM | -12 / - | 4 | ✓ Closing fragment |
| 10-19 04:13 | 60m | +20 / +7 | 5P6MJ | -5 / +5 | 4 | ✓ Full exchange observed |
| 10-19 03:54 | 40m | -16 / - | LZ1ZF | - / +5 | 2 | ✓ Closing fragment |
| 10-19 03:46 | 40m | -8 / - | N1KIN | - / -19 | 2 | ✓ Closing fragment |
| 10-19 03:30 | 40m | -18 / - | W5JK | - / -21 | 2 | ✓ Closing fragment |
| 10-19 03:29 | 40m | -18 / - | NK4O | - / -13 | 2 | Partial capture |
| 10-19 02:58 | 40m | -15 / - | KN4VZR | - / -25 | 4 | Partial capture |
| 10-19 02:17 | 40m | -18 / - | W2GMW | -22 / - | 2 | ✓ Closing observed |
| 10-19 01:36 | 40m | -6 / - | TG9SO | - / -20 | 20 | ✓ Closing fragment |
| 10-19 01:33 | 40m | -7 / - | KJ4YLR | - / -22 | 5 | Partial capture |
| 10-19 01:31 | 40m | -6 / - | K3YQA | - / -20 | 3 | Partial capture |
| 10-19 01:27 | 60m | +10 / -9 | KK4CDK | -10 / -7 | 5 | ✓ Full exchange observed |
| 10-18 05:27 | 40m | +12 / - | VO1ACZ | - / -16 | 20 | Partial capture |
| 10-18 04:38 | 40m | -4 / - | VO1ACZ | - / -18 | 36 | Partial capture |
| 10-18 04:28 | 40m | -2 / - | VO1ACZ | - / -13 | 3 | Partial capture |
| 10-18 04:21 | 40m | +1 / - | VO1ACZ | - / -16 | 8 | Partial capture |
| 10-18 04:09 | 40m | +5 / - | KB0YLQ | - / -16 | 8 | ✓ Closing fragment |
| 10-18 04:08 | 40m | +8 / - | KQ4WBE | - / -23 | 2 | ✓ Closing fragment |
| 10-18 04:06 | 40m | +7 / - | W3XG | - / -15 | 2 | ✓ Closing fragment |
| 10-18 03:59 | 40m | +4 / - | YV5YDT | - / -4 | 5 | ✓ Closing fragment |
| 10-18 03:56 | 40m | +6 / - | VO1ACZ | - / - | 6 | Partial capture |
| 10-18 03:55 | 40m | +14 / - | KI6UIT | - / - | 2 | Partial capture |
| 10-18 03:49 | 40m | 0 / - | OZ7SP/J | - / -21 | 2 | Partial capture |
| 10-18 03:47 | 40m | +12 / - | K4J | - / -17 | 4 | ✓ Closing fragment |
| 10-18 03:41 | 40m | +2 / - | VO1ACZ | - / - | 10 | Partial capture |
| 10-18 03:38 | 40m | +2 / - | SA3LEN | - / - | 2 | ✓ Closing fragment |
| 10-16 03:48 | 60m | +5 / +9 | VP2MAW | -3 / -7 | 10 | Partial capture |
| 10-15 04:58 | 40m | - / +7 | YY5EHT | -22 / - | 2 | Partial capture |
| 10-14 05:31 | 80m | +10 / - | PJ2/W4IPC | - / -14 | 10 | Partial capture |
| 10-14 05:28 | 80m | +8 / - | RA7E/P | - / -14 | 6 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 035715 +7 2304 V47NT S55DX -11 (x4) 040015 -8 2304 OH2CUB/P S55DX -10 040045 +7 642 SP0YAGI S55DX -10 (x3) 040315 -4 643 V47NT S55DX -09 (x4) 040845 -21 2149 N3JO S55DX 73 041000 -11 2263 S55DX R6OK KN87 041130 -9 584 6Y5SJ S55DX -21
UTC dB Audio Message 034015 -17 1282 S55DX ON1JP +14 034015 -8 1123 S55DX IZ5FSO JN53 034030 +9 1123 ON1JP S55DX R-13 034045 -19 1282 S55DX ON1JP RR73 034100 +10 1123 ON1JP S55DX 73 034130 +5 1123 CQ DX S55DX JN75 (x2) 034215 -14 1123 S55DX IZ5FSO JN53 034230 +11 1123 IZ5FSO S55DX -01 (x2) 034400 +14 1123 CQ DX S55DX JN75 (x3) 034630 +17 694 ON4MAP S55DX -14 (x2)
UTC dB Audio Message 041345 +20 731 5P6MJ S55DX RR73 041400 -3 2036 S55DX 5P6MJ 73 023300 +12 1938 CO7WT S55DX JN75 (x4) 035645 +10 1192 W2AJR S55DX -22 (x3) 023415 -20 1137 JT2ZZ S55DX -17 (x3) 023545 -19 1790 EP2AES S55DX -06 (x2) 023745 -19 1790 JT2ZZ S55DX -17
UTC dB Audio Message 091945 -9 995 <...> S55DX JN75
UTC dB Audio Message 221915 +2 1708 RI1FJZ S55DX JN75 (x8) 222300 -13 1007 S55DX RI1FJZ -16 222315 -4 1708 RI1FJZ S55DX R-16 (x6)
UTC dB Audio Message 045915 +5 1792 HZ1YJ S55DX RR73 054700 +10 1326 <...> S55DX -10 054715 -1 1370 S55DX <...> R-06 055230 +12 2135 VK4KTW S55DX RR73 051415 +6 1310 S55DX GB64MOD +08 (x2) 050715 -16 2728 S55DX VK3HA R-06 053530 -10 643 HI8YMR S55DX -02 (x2) 053715 -18 1730 S55DX HI8YMR 73 053045 -2 1155 S55DX TC30AUG R-02 051045 -12 2676 S55DX VK2ZR +03 (x4)
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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