YO3OBB — 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 YO3OBB, decoded by SO8OO in southeastern Poland. 7,809 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 116 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-11-06.
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 7,809 FT8 messages attributed to YO3OBB as the transmitting token by decoded message structure across 116 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (50%), followed by 40 m (36%) and 20 m (11%). Most decodes (57%) fell within the six-hour window 02:00-08:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (65%); the estimated median was -4.1 dB.
Overview
Bands
Last attributed message: 2026-11-06 05:38 UTC
Observed FT8 message patterns
- Attributed sample
- 7,809 messages
- Active dates
- 116 UTC dates
- Estimated median S/N
- -4.1 dB
- Estimated 10th-90th percentile
- -18 to +7 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,217, moderate (-15 to -9 dB) 1,509, strong (≥ -8 dB) 5,083.
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 YO3OBB 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 YO3OBB
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
- KN34 · 5,478 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 721 km (approx.)
- Last such locator decoded
- 2026-11-06 05:38 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 | YO3OBB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-05 21:53 | 40m | +2 / -14 | RZ6AKF | -17 / -5 | 3 | Partial capture |
| 11-05 21:45 | 40m | - / - | UT8IIV | -20 / - | 2 | Partial capture |
| 11-05 21:31 | 40m | - / -20 | SV3CNX | -10 / - | 3 | Partial capture |
| 11-05 20:40 | 40m | - / -11 | SM0EJR | -10 / - | 2 | Partial capture |
| 11-05 20:28 | 40m | - / 0 | EA5ET | -12 / - | 3 | ✓ Closing fragment |
| 11-05 20:00 | 40m | - / -1 | YO3GNU | +1 / - | 5 | Partial capture |
| 11-05 04:40 | 40m | -4 / -2 | PD1DBL | -4 / -18 | 7 | ✓ Full exchange observed |
| 11-05 04:39 | 40m | -16 / -13 | UT4QN | -4 / - | 4 | ✓ Closing observed |
| 11-05 04:34 | 80m | +4 / - | R6ZAJ | - / -6 | 2 | ✓ Closing fragment |
| 11-05 04:27 | 80m | 0 / - | DA6NEL | - / -19 | 2 | ✓ Closing fragment |
| 11-05 04:23 | 80m | +2 / +7 | SV5BYP | -18 / - | 3 | ✓ Closing observed |
| 11-05 04:15 | 80m | - / -13 | SP8HDC | -2 / - | 3 | ✓ Closing fragment |
| 11-05 04:11 | 80m | - / -4 | DO1OAS | -9 / - | 5 | ✓ Closing fragment |
| 11-04 22:26 | 40m | - / - | DJ2MS | -15 / - | 4 | ✓ Closing fragment |
| 11-04 21:12 | 40m | - / -19 | EA8Y | -8 / - | 3 | ✓ Closing fragment |
| 11-04 20:02 | 40m | -5 / - | F4DEB | - / -24 | 2 | ✓ Closing fragment |
| 11-04 19:59 | 40m | -10 / - | OH6CKE | - / -13 | 2 | ✓ Closing fragment |
| 11-04 10:50 | 40m | -5 / - | PD7BDN | - / -10 | 12 | Partial capture |
| 11-04 10:45 | 40m | - / - | YO4BXX | -12 / - | 2 | Partial capture |
| 11-04 10:43 | 40m | -6 / -9 | IU3WNP | -10 / -5 | 3 | ✓ Full exchange observed |
| 11-04 10:39 | 40m | -7 / - | DH1YBD | -20 / -11 | 4 | ✓ Closing observed |
| 11-04 10:36 | 40m | -12 / +5 | OE3RWR | -3 / +7 | 5 | ✓ Full exchange observed |
| 11-04 08:57 | 40m | -10 / - | TC0ATA | - / +4 | 2 | ✓ Closing fragment |
| 11-04 08:57 | 40m | - / -12 | OK4SU | -6 / - | 2 | Partial capture |
| 11-04 08:34 | 40m | -11 / - | YO2LQF | - / -13 | 2 | Partial capture |
| 11-04 08:27 | 40m | -9 / - | PI4TS | - / -11 | 4 | ✓ Closing fragment |
| 11-04 08:22 | 40m | -7 / - | SP5DUJ | - / -18 | 3 | ✓ Closing fragment |
| 11-04 06:59 | 40m | -9 / -10 | OE6OCG | -7 / - | 4 | ✓ Closing observed |
| 11-04 06:24 | 40m | -5 / -9 | DG5PW | -14 / - | 4 | ✓ Closing observed |
| 11-04 06:20 | 40m | -10 / -13 | R2SN | -7 / 0 | 3 | ✓ Full exchange observed |
| 11-04 06:10 | 40m | -16 / -14 | F6ECI | +5 / +8 | 5 | ✓ Full exchange observed |
| 11-04 05:58 | 40m | -4 / - | YO2LQF | - / -17 | 6 | Partial capture |
| 11-04 05:54 | 40m | -4 / - | W5THT | - / -10 | 7 | Partial capture |
| 11-04 05:46 | 40m | -8 / - | OK2CNI | - / -5 | 2 | ✓ Closing fragment |
| 11-04 05:43 | 40m | -4 / -5 | HB9ELE | +13 / +2 | 5 | ✓ Full exchange observed |
| 11-04 05:36 | 40m | -6 / - | YO8TVD | - / +5 | 2 | ✓ Closing fragment |
| 11-04 05:24 | 80m | -15 / - | R3KAB | - / -8 | 2 | Partial capture |
| 11-04 05:12 | 80m | -4 / - | R3KAB | - / -8 | 2 | Partial capture |
| 11-01 08:07 | 40m | -4 / -4 | YO2MKE | -3 / - | 5 | ✓ Full exchange observed |
| 11-01 07:53 | 40m | -2 / - | DL1VED | - / -8 | 2 | ✓ Closing fragment |
| 11-01 07:07 | 40m | - / - | LZ1ZF | -6 / - | 2 | Partial capture |
| 11-01 06:49 | 40m | - / - | LZ1ZF | +3 / - | 2 | Partial capture |
| 11-01 06:46 | 40m | -5 / -9 | IZ5FSO | -18 / 0 | 6 | ✓ Full exchange observed |
| 11-01 06:38 | 40m | - / - | LZ1ZF | +1 / - | 2 | Partial capture |
| 11-01 06:34 | 40m | 0 / - | RW6ATD | -1 / -4 | 3 | ✓ Closing observed |
| 11-01 06:27 | 40m | -2 / - | UA3SCU | - / -13 | 2 | ✓ Closing fragment |
| 11-01 05:59 | 40m | -4 / - | TA3XEE | - / -17 | 2 | ✓ Closing fragment |
| 11-01 05:54 | 40m | - / -12 | IW2ODG | -1 / - | 2 | Partial capture |
| 10-31 19:02 | 40m | -17 / - | SP7VPR | - / -10 | 2 | ✓ Closing fragment |
| 10-31 19:01 | 40m | -11 / - | YO3TEP | - / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 212445 -1 1152 CQ YO3OBB KN34 212615 +0 1152 BA8BLK YO3OBB -09 213130 -14 1152 YO3OBB SV3CNX KM17 (x3) 214100 -17 1152 YO3OBB PD4SN JO32 214445 +1 1152 CQ YO3OBB KN34 214500 -19 1152 YO3OBB UT8IIV KN88 (x2) 215145 -6 1152 CQ YO3OBB KN34 215345 +1 1152 RZ6AKF YO3OBB -05 (x2) 215500 -2 365 YO3OBB HA3HZ JN96 215600 -17 1153 YO3OBB RZ6AKF R-14 053845 -2 1153 CQ YO3OBB KN34
UTC dB Audio Message 042745 +0 1115 DA6NEL YO3OBB -19 (x2) 042845 -2 1115 CQ YO3OBB KN34 (x11) 043415 +4 1115 R6ZAJ YO3OBB -06 (x2)
UTC dB Audio Message 090945 -15 1297 CQ YO3OBB KN34 091015 -13 1297 SP3WVL YO3OBB +00 (x2) 125430 -2 2327 YO3OBB EA7Z IM67 (x2) 105430 -16 1205 YO3OBB EA7DL IM87 (x3) 121800 -7 1201 YO3OBB CT4KQ IN60 155900 -9 1228 YO3OBB CR7BUJ IM58 (x6)
UTC dB Audio Message 204100 +5 1443 YO3OBB UX7QV KN29 (x7) 031830 +6 1178 YO3OBB S57MPU JN76 (x5)
UTC dB Audio Message 192045 -13 1525 CQ YO3OBB KN34 (x2) 213230 +3 2910 YO3OBB IW5ALZ JN53 213245 -16 1525 BA3NZ YO3OBB RR73 (x2) 213330 -8 2005 YO3OBB IW5ALZ JN53 213445 -21 1525 CQ YO3OBB KN34 a1 213715 -20 1525 BG7BVI YO3OBB 73 214015 -1 1525 CQ YO3OBB KN34 (x3) 042930 -19 1522 YO3OBB ZL2THM RE78 043445 -23 1779 CQ YO3OBB KN34 (x2) 044345 -16 1780 SQ7OBB YO3OBB 73
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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