DB3OI — 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 DB3OI, decoded by SO8OO in southeastern Poland. 2,070 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 100 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-21.
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 2,070 FT8 messages attributed to DB3OI as the transmitting token by decoded message structure across 100 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (49%), followed by 40 m (21%) and 160 m (14%). Most decodes (60%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (67%); the estimated median was -5 dB.
Overview
Bands
Last attributed message: 2026-10-21 05:08 UTC
Observed FT8 message patterns
- Attributed sample
- 2,070 messages
- Active dates
- 100 UTC dates
- Estimated median S/N
- -5 dB
- Estimated 10th-90th percentile
- -15.6 to +5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 207, moderate (-15 to -9 dB) 485, strong (≥ -8 dB) 1,378.
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 DB3OI 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 DB3OI
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
- JO52 · 1,155 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 803 km (approx.)
- Last such locator decoded
- 2026-10-21 05:05 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 | DB3OI S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-21 05:07 | 80m | -2 / -12 | M9XPN | -14 / -6 | 7 | ✓ Full exchange observed |
| 10-19 05:35 | 80m | -1 / -2 | DJ2PW | -8 / +5 | 4 | ✓ Full exchange observed |
| 10-19 05:34 | 80m | 0 / -5 | PA0MUS | -6 / +7 | 5 | ✓ Full exchange observed |
| 10-19 05:33 | 80m | +6 / +7 | G8TJQ | -3 / - | 5 | ✓ Full exchange observed |
| 10-19 05:30 | 80m | 0 / - | DO1BOC | - / - | 2 | Partial capture |
| 10-18 17:27 | 80m | +1 / - | UA3YFL | -1 / -9 | 4 | Partial capture |
| 10-18 17:23 | 80m | 0 / - | DL9YAO | - / -15 | 2 | ✓ Closing fragment |
| 10-18 17:21 | 80m | +2 / - | PE1BOL | - / -9 | 2 | ✓ Closing fragment |
| 10-18 17:19 | 80m | 0 / - | DO5AX | - / -13 | 2 | ✓ Closing fragment |
| 10-18 17:16 | 60m | 0 / - | EG46PPA | - / - | 2 | Partial capture |
| 10-18 05:09 | 80m | +2 / -19 | R1BED | -21 / -20 | 4 | ✓ Full exchange observed |
| 10-18 05:08 | 80m | +3 / +2 | OK7BB | +7 / 0 | 4 | ✓ Full exchange observed |
| 10-18 05:03 | 80m | -2 / -4 | SQ9EJ | +1 / 0 | 4 | ✓ Full exchange observed |
| 10-18 05:01 | 80m | 0 / +4 | F1PSX | -17 / 0 | 4 | ✓ Full exchange observed |
| 10-17 17:08 | 60m | +3 / +7 | DL8GBR | -8 / +1 | 5 | ✓ Full exchange observed |
| 10-17 17:04 | 80m | +9 / -7 | US7KC | +9 / -7 | 4 | ✓ Full exchange observed |
| 10-17 17:03 | 80m | +8 / - | OK3WOD | - / -2 | 2 | ✓ Closing fragment |
| 10-17 17:00 | 80m | -1 / -13 | UR4LG | -14 / -9 | 6 | ✓ Full exchange observed |
| 10-17 16:59 | 80m | -7 / - | DO1XMC/P | - / -7 | 2 | ✓ Closing fragment |
| 10-17 05:16 | 60m | - / - | SP1ZMO | -6 / - | 4 | Partial capture |
| 10-17 05:09 | 60m | -1 / - | EG46PPA | - / - | 3 | Partial capture |
| 10-17 05:08 | 60m | +1 / - | LB5UK | - / -14 | 2 | ✓ Closing fragment |
| 10-16 19:57 | 60m | -7 / - | DH4PAP | -3 / -7 | 5 | ✓ Full exchange observed |
| 10-16 17:23 | 80m | -12 / - | DO4FOX | - / - | 2 | ✓ Closing fragment |
| 10-16 17:22 | 80m | -6 / -6 | OZ1OTA | -12 / -1 | 4 | ✓ Full exchange observed |
| 10-16 17:20 | 80m | +4 / -12 | DO4FOX | -13 / -1 | 2 | Partial capture |
| 10-16 17:18 | 80m | +2 / - | DB4SCW | - / -7 | 2 | ✓ Closing fragment |
| 10-16 17:14 | 80m | 0 / -17 | UT2SQ | -7 / - | 3 | ✓ Closing observed |
| 10-16 15:54 | 40m | -11 / - | DL8NDV/P | - / -12 | 3 | ✓ Closing fragment |
| 10-16 15:53 | 40m | -11 / - | DL1NRC | -4 / - | 4 | ✓ Full exchange observed |
| 10-16 15:51 | 40m | -10 / - | IK0HQV | - / -20 | 2 | Partial capture |
| 10-13 15:31 | 40m | -5 / - | R5BM/6 | - / - | 3 | Partial capture |
| 10-11 05:51 | 80m | -6 / +6 | DO2NM | -3 / +5 | 5 | ✓ Full exchange observed |
| 10-11 05:49 | 80m | -2 / - | F1IQH | -18 / -3 | 4 | ✓ Closing observed |
| 10-10 20:03 | 80m | +2 / +2 | SP9VEY | -7 / +6 | 3 | ✓ Full exchange observed |
| 10-10 20:00 | 160m | -1 / +2 | M0IOY | -4 / -11 | 3 | ✓ Full exchange observed |
| 10-10 19:59 | 160m | +4 / -10 | RK6OQ | -5 / -5 | 5 | ✓ Full exchange observed |
| 10-10 17:28 | 80m | +2 / +3 | DJ7XY | -4 / +3 | 5 | ✓ Full exchange observed |
| 10-10 17:25 | 80m | +6 / +2 | E70SZ | -2 / +3 | 5 | ✓ Full exchange observed |
| 10-10 17:23 | 80m | +9 / - | DB2GM | - / -13 | 2 | ✓ Closing fragment |
| 10-10 17:21 | 80m | +5 / +7 | OZ5NJ | +6 / - | 5 | ✓ Full exchange observed |
| 10-10 06:08 | 40m | -2 / -10 | UW8SM | +10 / +9 | 5 | ✓ Full exchange observed |
| 10-10 06:06 | 40m | -4 / - | ZL2BBR | - / - | 2 | Partial capture |
| 10-10 06:05 | 40m | -8 / - | EA3ISZ | - / -12 | 3 | Partial capture |
| 10-10 06:04 | 40m | -7 / - | GJ0KYZ | -10 / - | 2 | ✓ Closing observed |
| 10-10 06:01 | 40m | -15 / - | ZL2BBR | - / - | 2 | Partial capture |
| 10-09 20:29 | 160m | -6 / - | DO5SB | - / -13 | 2 | ✓ Closing fragment |
| 10-09 20:26 | 160m | -10 / - | CT1CHT | - / -10 | 4 | ✓ Closing fragment |
| 10-09 20:24 | 160m | -8 / - | DL4BCY | -8 / - | 3 | Partial capture |
| 10-09 15:59 | 80m | +2 / - | ON7YG | - / +1 | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 053800 -1 1803 CQ DB3OI JO52 (x8) 050715 -16 1744 DB3OI M9XPN IO91 050730 +2 1745 M9XPN DB3OI -06 050745 -16 1745 DB3OI M9XPN R-12 050800 -6 1745 M9XPN DB3OI RR73 050815 -13 1745 DB3OI M9XPN R-12 050830 -3 1745 M9XPN DB3OI RR73 050845 -12 1745 DB3OI M9XPN 73
UTC dB Audio Message 051815 -4 2110 DB3OI SP1ZMO JO73 170800 +6 983 CQ DB3OI JO52 170815 -8 982 DB3OI DL8GBR JN38 170830 -1 983 DL8GBR DB3OI +01 170845 -8 982 DB3OI DL8GBR R+07 170900 +7 983 DL8GBR DB3OI RR73 170915 -9 982 DB3OI DL8GBR 73 045700 -17 2100 CQ DB3OI JO52 (x3) 171645 +1 2351 EG46PPA DB3OI JO52 (x2) 045700 -17 2187 CQ DB3OI JO52 (x3)
UTC dB Audio Message 153345 -1 747 R5BM/6 DB3OI R+17 155100 -14 2111 DL8NDV/P DB3OI -10 155130 -11 2110 IK0HQV DB3OI -20 (x2) 155230 -8 2150 CQ DB3OI JO52 ? a1 155300 -11 2149 DL1NRC DB3OI +12 155315 -8 2150 DB3OI DL1NRC R+15 155330 -11 2149 DL1NRC DB3OI RR73 155345 +1 2150 DB3OI DL1NRC 73 155400 -13 2149 DL8NDV/P DB3OI RR73 (x3) 144245 -20 2118 CQ DB3OI JO52 a1 (x3)
UTC dB Audio Message 202830 -3 2345 CQ DB3OI JO52 (x2) 202930 -6 2345 DO5SB DB3OI -13 (x2) 171830 -6 1491 G4GVB DB3OI JO52 195830 +3 2165 CQ DB3OI JO52 (x2) 195915 -3 1502 DB3OI RK6OQ KN87 195930 +7 2165 RK6OQ DB3OI -05 195945 -6 1502 DB3OI RK6OQ R-10 200000 +1 2165 RK6OQ DB3OI RR73 200015 -6 1502 DB3OI RK6OQ 73 200030 +0 2165 M0IOY DB3OI -11 200045 -4 1067 DB3OI M0IOY R+02 200100 -2 2165 M0IOY DB3OI RR73
UTC dB Audio Message 152830 -8 803 DB3OI R50RKZ -05 (x2)
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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