OD5SB — 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 OD5SB, decoded by SO8OO in southeastern Poland. 460 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 41 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-18.
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 460 FT8 messages attributed to OD5SB as the transmitting token by decoded message structure across 41 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (68%), followed by 20 m (30%) and 40 m (2%). Most decodes (76%) fell within the six-hour window 19:00-01:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.
Overview
Bands
Last attributed message: 2026-10-18 23:27 UTC
Observed FT8 message patterns
- Attributed sample
- 460 messages
- Active dates
- 41 UTC dates
- Estimated median S/N
- -14 dB
- Estimated 10th-90th percentile
- -22 to -3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 193, moderate (-15 to -9 dB) 161, strong (≥ -8 dB) 106.
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 OD5SB 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 OD5SB
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
- KM74 · 225 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,025 km (approx.)
- Last such locator decoded
- 2026-10-18 23:15 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 | OD5SB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-19 20:29 | 40m | - / -3 | R4ADJ | -6 / - | 2 | ✓ Closing fragment |
| 10-18 23:28 | 40m | - / - | ON7IO | 0 / - | 2 | Partial capture |
| 10-18 23:08 | 40m | - / - | UA4FKT | +2 / - | 4 | Partial capture |
| 10-18 23:06 | 40m | - / -15 | UN0GY | -2 / - | 4 | ✓ Closing fragment |
| 10-17 19:36 | 40m | - / -10 | YO4NT | -4 / - | 2 | ✓ Closing fragment |
| 10-16 12:23 | 10m | - / - | PD4WAC | -20 / - | 2 | Partial capture |
| 10-16 12:18 | 10m | - / -13 | PD0PWH | -15 / - | 3 | Partial capture |
| 10-12 20:07 | 80m | - / - | R5BS | -3 / - | 2 | Partial capture |
| 10-12 20:03 | 80m | - / - | SP5GW | +4 / - | 4 | Partial capture |
| 10-12 20:02 | 80m | - / -16 | R3EDI | +2 / - | 3 | Partial capture |
| 10-12 20:02 | 80m | - / - | R5BS | -12 / - | 4 | Partial capture |
| 10-12 20:01 | 80m | - / - | LY1DY | +5 / - | 3 | Partial capture |
| 10-12 20:01 | 80m | - / -13 | R7ZY | -11 / - | 3 | ✓ Closing fragment |
| 10-12 02:51 | 80m | - / -9 | IZ8XXE | +8 / - | 2 | ✓ Closing fragment |
| 10-12 02:47 | 80m | - / - | G0CUZ | +2 / - | 3 | Partial capture |
| 10-12 02:44 | 80m | -12 / - | F4NGR | -4 / -12 | 5 | Partial capture |
| 10-12 02:42 | 80m | - / -13 | 9H6C | -12 / - | 2 | ✓ Closing fragment |
| 10-12 02:40 | 80m | - / -20 | OK1AMF | +9 / - | 4 | ✓ Closing fragment |
| 10-12 02:37 | 80m | -14 / -12 | 9H6C | -5 / - | 2 | Partial capture |
| 10-12 02:36 | 80m | - / -19 | T77RN | +2 / - | 2 | Partial capture |
| 10-12 02:26 | 80m | -10 / -13 | R4UA | -1 / +4 | 5 | ✓ Full exchange observed |
| 10-12 02:25 | 80m | - / - | IU2THY | -1 / - | 3 | Partial capture |
| 10-12 02:23 | 80m | - / - | EA1EA | -15 / - | 4 | Partial capture |
| 10-12 02:23 | 80m | - / - | R3KLE | -8 / - | 3 | Partial capture |
| 10-12 02:23 | 80m | - / - | ON8WR | +4 / - | 2 | Partial capture |
| 10-12 02:21 | 80m | - / -12 | YO3GNF | -3 / - | 4 | ✓ Closing fragment |
| 10-12 02:21 | 80m | -16 / -15 | SP1MGM | +4 / -14 | 4 | ✓ Full exchange observed |
| 10-12 02:18 | 80m | - / - | YL3VN | -15 / - | 3 | Partial capture |
| 10-12 02:16 | 80m | -11 / -8 | SP9IZV | +8 / - | 18 | ✓ Closing observed |
| 10-12 02:15 | 80m | -14 / -19 | UF5F | 0 / -12 | 16 | ✓ Full exchange observed |
| 10-12 02:15 | 80m | - / - | YL3VN | -12 / - | 2 | Partial capture |
| 10-12 02:14 | 80m | - / - | YO3GNF | -5 / - | 6 | Partial capture |
| 10-12 02:13 | 80m | -14 / -20 | DL1MEV | +6 / -3 | 8 | ✓ Full exchange observed |
| 10-12 02:13 | 80m | - / -10 | HA1SU | +10 / - | 3 | ✓ Closing fragment |
| 10-12 02:11 | 80m | -13 / -16 | F4BPO | +11 / -13 | 19 | ✓ Full exchange observed |
| 10-08 21:42 | 80m | - / - | S57BTI | +9 / - | 2 | Partial capture |
| 10-06 20:07 | 80m | - / - | SQ3RX | +3 / - | 3 | Partial capture |
| 10-06 20:03 | 80m | - / -18 | UC6D | +3 / - | 2 | ✓ Closing fragment |
| 10-06 19:57 | 80m | - / -18 | YO3JW | -11 / - | 2 | ✓ Closing fragment |
| 10-06 04:14 | 40m | - / -13 | F6ECI | -7 / - | 2 | ✓ Closing fragment |
| 10-05 03:13 | 40m | - / -20 | SV4LGX | +2 / - | 5 | Partial capture |
| 10-05 03:07 | 40m | - / -22 | SV4LGX | +2 / - | 6 | Partial capture |
| 10-02 22:50 | 80m | -14 / - | RA0SCA | - / - | 4 | Partial capture |
| 10-02 22:47 | 80m | - / -10 | RT4A/QRP | -16 / - | 2 | Partial capture |
| 10-02 22:44 | 80m | - / - | RW9AW | +2 / - | 2 | Partial capture |
| 10-02 22:43 | 80m | - / - | SP7CMW | +12 / - | 2 | Partial capture |
| 10-02 22:41 | 80m | - / - | LA4NM | -4 / - | 2 | Partial capture |
| 10-02 22:41 | 80m | - / -16 | TF3VS | -1 / - | 5 | ✓ Closing fragment |
| 10-02 22:41 | 80m | - / - | EA7LIC | -6 / - | 2 | Partial capture |
| 10-02 22:39 | 80m | -23 / - | 7Z1IS | - / -14 | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 230615 +1 2529 OD5SB UN0GY -15 (x4) 230815 +3 1588 OD5SB UA4FKT LO23 (x4) 231500 -18 1587 9V1YC OD5SB KM74 232715 -17 1585 RA0AF OD5SB 73 232830 -2 712 OD5SB ON7IO JO20 (x2) 232900 -24 1510 OD5SB BG0FQU -20 202945 -12 1291 OD5SB R4ADJ -03 (x2)
UTC dB Audio Message 121530 -23 1347 OD5SB PD0PWH JO21 121730 -16 1346 OD5SB PD4WAC JO22 121800 -12 1343 OD5SB PD0PWH R-13 (x3) 122330 -19 1346 OD5SB PD4WAC JO22 (x2)
UTC dB Audio Message 200230 +0 1216 OD5SB R3EDI KO82 200230 +5 1514 OD5SB LY1DY KO14 200300 +9 603 OD5SB SP5GW KO12 200300 +2 1216 OD5SB R3EDI R-16 200300 +7 1514 OD5SB OK1CI -09 200330 +5 603 OD5SB SP5GW KO12 200330 -14 1768 OD5SB R5BS KO85 200330 +3 1216 OD5SB R3EDI R-14 200400 -7 1769 OD5SB R5BS KO85 200430 +8 603 OD5SB SP5GW KO12 200430 -17 1768 OD5SB R5BS KO85 200630 -4 603 OD5SB SP5GW KO12 200700 -5 1700 OD5SB SP2MEF 73 200700 -7 1159 OD5SB R5BS KO85 (x2)
UTC dB Audio Message 222500 -7 2254 W4PSK OD5SB KM74 (x2) 054800 +4 1756 OD5SB IR7MGGC -18 (x2) 171900 -7 1753 IR7MGGC OD5SB KM74 (x2) 204145 -20 2102 II7MGBT OD5SB R-07 184530 -21 1399 OD5SB II7MGFG -17 184945 -13 1400 II7MGFG OD5SB R-13 (x3) 190415 -17 975 II7MGXX OD5SB KM74 121300 +15 439 OD5SB IU5HIU JN53 (x3)
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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