UB3DSR — 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 UB3DSR, decoded by SO8OO in southeastern Poland. 124 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 16 UTC dates in the available aggregate history. Observed between 2026-08-20 and 2026-11-04.
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 124 FT8 messages attributed to UB3DSR as the transmitting token by decoded message structure across 16 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (52%), followed by 40 m (35%) and 160 m (13%). Several six-hour UTC windows tied for the largest share (70%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.
Overview
Bands
Last attributed message: 2026-11-04 04:40 UTC
Observed FT8 message patterns
- Attributed sample
- 124 messages
- Active dates
- 16 UTC dates
- Estimated median S/N
- -10 dB
- Estimated 10th-90th percentile
- -17 to -3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 53, strong (≥ -8 dB) 55.
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 UB3DSR 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 UB3DSR
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
- KO92 · 56 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,229 km (approx.)
- Last such locator decoded
- 2026-11-04 04:40 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 | UB3DSR S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-04 17:35 | 40m | - / -17 | RC6OX | -18 / - | 3 | Partial capture |
| 11-04 04:39 | 40m | -6 / - | PI40EUDXF | - / - | 2 | Partial capture |
| 11-04 04:37 | 40m | - / -14 | RK6OU | -12 / - | 2 | ✓ Closing fragment |
| 11-01 04:49 | 40m | - / -8 | RK6MC | -20 / - | 2 | Partial capture |
| 10-30 15:44 | 80m | -9 / - | UA3IDQ | -4 / -8 | 6 | ✓ Full exchange observed |
| 10-30 15:34 | 40m | - / -1 | ER3KAZ | -8 / - | 2 | ✓ Closing fragment |
| 10-25 04:30 | 40m | -5 / - | R9CS/P | -9 / -3 | 5 | ✓ Full exchange observed |
| 10-25 04:22 | 40m | -19 / -5 | RN3ZBX | -2 / - | 3 | ✓ Closing observed |
| 10-25 04:00 | 40m | - / -16 | R2FBW | -18 / - | 2 | Partial capture |
| 10-17 04:16 | 40m | - / - | EB2EMZ | -16 / - | 2 | Partial capture |
| 10-17 04:14 | 40m | - / -7 | HA3IC | -2 / - | 2 | ✓ Closing fragment |
| 10-16 17:39 | 80m | - / - | DL9KM | -3 / - | 7 | Partial capture |
| 10-16 17:37 | 80m | -7 / - | R3ZBD | - / - | 3 | ✓ Closing fragment |
| 10-16 16:16 | 80m | - / -11 | RC1TF | -12 / - | 3 | ✓ Closing fragment |
| 10-16 16:13 | 80m | -11 / - | UN7CL | - / -11 | 2 | ✓ Closing fragment |
| 10-15 18:46 | 80m | -1 / - | UA4PDJ | - / -4 | 4 | ✓ Closing fragment |
| 10-15 16:45 | 80m | - / - | YO2UKG | +14 / - | 2 | Partial capture |
| 10-15 16:43 | 80m | -14 / - | R4SCQ | - / -17 | 3 | ✓ Closing fragment |
| 10-15 16:40 | 80m | -6 / -5 | RX6LG | -6 / 0 | 5 | Partial capture |
| 10-15 16:38 | 80m | -12 / - | R6AR | -4 / -5 | 3 | ✓ Closing observed |
| 10-15 16:32 | 40m | -12 / - | UB8SII | - / -16 | 2 | Partial capture |
| 10-14 17:06 | 40m | -8 / -13 | 2E0FHM | -7 / -12 | 2 | Partial capture |
| 10-14 16:46 | 40m | -20 / - | R4HGK | - / -5 | 2 | ✓ Closing fragment |
| 10-14 16:43 | 40m | -11 / - | R7ZY | -12 / -8 | 4 | ✓ Closing observed |
| 10-12 17:41 | 40m | - / -13 | RT7B | -2 / - | 2 | ✓ Closing fragment |
| 10-12 17:40 | 40m | - / -16 | G6PWS | 0 / - | 2 | Partial capture |
| 10-12 17:06 | 40m | -13 / -12 | RA5AD | -5 / -12 | 3 | ✓ Full exchange observed |
| 10-11 04:01 | 40m | - / -7 | SV5BYP | -12 / - | 2 | Partial capture |
| 10-11 04:00 | 40m | - / -5 | RA6LO | -5 / - | 2 | ✓ Closing fragment |
| 10-11 02:05 | 80m | -16 / -18 | RZ6HBF | -3 / -5 | 4 | ✓ Full exchange observed |
| 10-11 01:58 | 80m | - / - | F4FPR | -7 / - | 5 | Partial capture |
| 10-11 01:57 | 80m | - / - | DO1ANB | -24 / - | 4 | Partial capture |
| 10-11 01:56 | 80m | -11 / -13 | R5AV | -17 / -12 | 3 | ✓ Full exchange observed |
| 10-11 01:51 | 80m | -5 / -5 | RW6HP | -6 / - | 3 | ✓ Closing observed |
| 10-11 01:51 | 80m | - / -10 | SP5EXA | -16 / - | 4 | ✓ Closing fragment |
| 10-11 00:57 | 160m | -2 / -17 | EW2ZC | +11 / -19 | 7 | Partial capture |
| 10-11 00:55 | 160m | -3 / -3 | UA3AGW | +12 / -6 | 4 | ✓ Full exchange observed |
| 10-11 00:14 | 80m | -4 / -8 | EC5W | +10 / -15 | 10 | ✓ Full exchange observed |
| 10-06 17:28 | 80m | -6 / - | RV3DNK | -5 / -2 | 3 | ✓ Closing observed |
| 10-06 17:24 | 80m | -8 / -16 | UA4HBR | -7 / -4 | 5 | ✓ Full exchange observed |
| 10-06 17:19 | 160m | -6 / - | RA0ADQ | - / - | 2 | Partial capture |
| 10-06 17:15 | 160m | -14 / - | R2HM | - / - | 3 | Partial capture |
| 10-06 17:15 | 160m | - / -10 | R2DRE | -17 / - | 3 | Partial capture |
| 10-06 17:13 | 160m | -15 / -12 | RT2P | -10 / -14 | 5 | ✓ Full exchange observed |
| 10-06 17:11 | 160m | -2 / 0 | RQ7O | +4 / -9 | 4 | ✓ Full exchange observed |
| 10-06 17:06 | 80m | - / -5 | RA3PGR | -10 / - | 3 | ✓ Closing fragment |
| 10-06 17:04 | 80m | -10 / +8 | RY4C | -10 / +4 | 4 | ✓ Full exchange observed |
| 10-02 18:33 | 80m | -6 / +1 | RV3FF | +4 / -6 | 5 | ✓ Full exchange observed |
| 10-02 18:13 | 80m | - / - | RX1AB | -10 / - | 2 | Partial capture |
| 10-02 18:10 | 80m | -2 / +5 | RN1QK | -11 / - | 3 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 153445 -8 2431 UB3DSR ER3KAZ RR73 153630 -14 1700 RG8U UB3DSR KO92 043915 +16 825 UB3DSR RA6FCU/P -07 044800 -12 2440 UB3DSR TA1MB KN41 044900 -17 1110 UB3DSR RK6MC -08 044915 -16 1592 UB3DSR RV6F LN14 044930 -24 1556 UB3DSR RK6MC -08 044930 -5 2840 UB3DSR R6FMK LN05 043715 -13 2477 UB3DSR RK6OU -14 (x2) 043945 -5 2377 PI40EUDXF UB3DSR KO92 (x2) 173530 -14 1945 UB3DSR RC6OX -17 (x3)
UTC dB Audio Message 173815 -8 1305 R3ZBD UB3DSR KO92 (x2) 173930 -4 1342 UB3DSR DL9KM JN68 (x7) 154430 -3 2231 UB3DSR UA3IDQ +13 154445 -8 2231 UA3IDQ UB3DSR KO92 154500 -5 2231 UB3DSR UA3IDQ +11 154515 -10 2231 UA3IDQ UB3DSR R-08 154530 -4 2231 UB3DSR UA3IDQ RR73 154545 -10 2231 UA3IDQ UB3DSR 73
UTC dB Audio Message 172130 -9 2270 R2HM UB3DSR KO92 005530 +14 2106 UB3DSR UA3AGW -03 005545 -1 2106 UA3AGW UB3DSR R-06 005600 +11 2106 UB3DSR UA3AGW RR73 005615 -5 2107 UA3AGW UB3DSR 73 005630 +1 843 UB3DSR RM5F KO85 005700 -19 1203 UB3DSR R8CC -08 005700 +12 1043 UB3DSR EW2ZC -17 (x5) 005945 -1 1042 EW2ZC UB3DSR R-19 (x2) 010345 -5 1365 UT5ZC UB3DSR KO92
UTC dB Audio Message 061300 -3 1065 UB3DSR R9AL -06 (x2) 123430 -16 1420 UB3DSR DK3BK -16 183615 -5 820 UB3DSR <...> -09 (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.
Explore CW reception at SO8OOFT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee