DB4VI — 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 DB4VI, decoded by SO8OO in southeastern Poland. 343 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 38 UTC dates in the available aggregate history. Observed between 2026-06-20 and 2026-11-03.
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 343 FT8 messages attributed to DB4VI as the transmitting token by decoded message structure across 38 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (55%), followed by 40 m (26%) and 10 m (11%). Most decodes (62%) fell within the six-hour window 12:00-18:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.
Overview
Bands
Last attributed message: 2026-11-03 23:47 UTC
Observed FT8 message patterns
- Attributed sample
- 343 messages
- Active dates
- 38 UTC dates
- Estimated median S/N
- -11 dB
- Estimated 10th-90th percentile
- -21 to -1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 98, moderate (-15 to -9 dB) 111, strong (≥ -8 dB) 134.
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 DB4VI 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 DB4VI
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
- JN39 · 205 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,063 km (approx.)
- Last such locator decoded
- 2026-11-03 23:45 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 | DB4VI S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-05 09:00 | 40m | - / - | OE5FIL | -16 / - | 4 | ✓ Closing fragment |
| 11-03 23:46 | 80m | -4 / -11 | VE3DZ | -24 / -7 | 4 | ✓ Full exchange observed |
| 11-03 23:45 | 80m | -3 / +1 | YL2KF | -1 / +5 | 5 | ✓ Full exchange observed |
| 11-03 11:39 | 40m | -21 / +1 | DM5ME | -16 / - | 4 | ✓ Closing observed |
| 11-03 11:38 | 40m | - / +4 | DF0KK | -2 / - | 2 | Partial capture |
| 11-02 18:15 | 80m | -10 / +1 | DL6EL | +12 / +7 | 4 | ✓ Full exchange observed |
| 11-02 18:12 | 80m | -14 / - | DJ8TX | - / -6 | 2 | ✓ Closing fragment |
| 11-02 18:08 | 80m | - / +3 | DB2HA | +5 / - | 3 | ✓ Closing fragment |
| 11-02 17:57 | 80m | -16 / - | DL6EL | - / -8 | 2 | Partial capture |
| 11-02 17:53 | 80m | -7 / -4 | DO3ME | -8 / +5 | 5 | ✓ Full exchange observed |
| 11-02 17:44 | 80m | -14 / - | E70SZ | - / - | 4 | Partial capture |
| 11-02 17:22 | 80m | - / -3 | IW1ALW | -4 / - | 3 | ✓ Closing fragment |
| 11-02 17:15 | 80m | - / - | IK0CHU | 0 / - | 3 | Partial capture |
| 11-02 17:14 | 80m | -13 / -13 | SQ9EJ | +1 / -11 | 15 | Partial capture |
| 11-02 17:10 | 80m | - / +8 | DL4PY | +1 / - | 3 | ✓ Closing fragment |
| 11-02 17:02 | 80m | - / -13 | ES2AJ | +10 / - | 2 | ✓ Closing fragment |
| 11-02 17:00 | 80m | -14 / - | F5JSQ | - / +8 | 2 | ✓ Closing fragment |
| 11-02 16:58 | 80m | -18 / +1 | DL5OAH | -4 / +5 | 5 | ✓ Full exchange observed |
| 10-31 23:39 | 40m | - / -21 | CT1BFP | -8 / - | 8 | ✓ Closing fragment |
| 10-31 16:18 | 60m | - / -12 | DK3GI | +8 / - | 3 | ✓ Closing fragment |
| 10-31 16:16 | 60m | - / 0 | DL4NHP | -14 / - | 3 | ✓ Closing fragment |
| 10-27 09:32 | 40m | -24 / +1 | DD1OO | -18 / - | 4 | ✓ Closing observed |
| 10-25 23:00 | 80m | - / - | SP6AXW | -8 / - | 2 | Partial capture |
| 10-25 22:59 | 80m | - / - | SP9YGD | -3 / - | 3 | Partial capture |
| 10-25 22:58 | 80m | -8 / -16 | YO6LM | +4 / - | 5 | ✓ Closing observed |
| 10-25 22:58 | 80m | -4 / - | DO5PY | +3 / +3 | 3 | ✓ Closing observed |
| 10-25 15:56 | 40m | - / +6 | HB9EOT | -2 / - | 2 | ✓ Closing fragment |
| 10-25 00:27 | 80m | +1 / - | 7P8GE | - / -11 | 6 | Partial capture |
| 10-25 00:24 | 80m | -4 / - | RK3YWS/P | - / -7 | 5 | Partial capture |
| 10-25 00:08 | 40m | - / -11 | KI8JP | -6 / - | 2 | ✓ Closing fragment |
| 10-24 13:26 | 60m | - / -11 | ON4CN | -24 / - | 2 | Partial capture |
| 10-24 10:04 | 40m | - / -10 | F1PBZ | -11 / - | 2 | Partial capture |
| 10-24 10:03 | 40m | - / -9 | DG3YEV | +1 / - | 4 | ✓ Closing fragment |
| 10-24 10:03 | 40m | - / -2 | DK8IZ | -15 / - | 3 | ✓ Closing fragment |
| 10-23 23:29 | 160m | - / -10 | OK1WCF | +3 / - | 3 | ✓ Closing fragment |
| 10-23 23:27 | 160m | - / -6 | DF3JO | -24 / - | 2 | Partial capture |
| 10-23 23:13 | 80m | -5 / - | EA8AJ | - / - | 6 | Partial capture |
| 10-23 16:55 | 80m | -14 / -2 | DO2BBC | -4 / - | 3 | ✓ Closing observed |
| 10-23 16:52 | 80m | -13 / - | DO2BBC | -1 / - | 2 | Partial capture |
| 10-23 16:51 | 80m | -11 / +1 | DO2NM | +1 / +7 | 5 | ✓ Full exchange observed |
| 10-23 16:49 | 80m | -19 / -1 | DK0KG | +2 / - | 5 | ✓ Full exchange observed |
| 10-23 15:13 | 60m | - / -8 | DL8GBR | -14 / - | 3 | ✓ Closing fragment |
| 10-23 15:10 | 60m | - / - | DM5MA | -2 / - | 2 | Partial capture |
| 10-23 15:09 | 60m | - / -3 | SP2EWQ | -2 / - | 6 | ✓ Closing fragment |
| 10-23 15:09 | 60m | - / -18 | LY8O | +6 / - | 4 | ✓ Closing fragment |
| 10-18 22:05 | 80m | -5 / -9 | G0WZM | -4 / +1 | 4 | ✓ Full exchange observed |
| 10-17 16:57 | 40m | +6 / -11 | YO3GJE | -13 / -12 | 8 | Partial capture |
| 10-17 16:52 | 40m | -5 / - | ZL1VAH | - / -16 | 5 | Partial capture |
| 10-17 16:50 | 40m | -6 / - | DH5IS | -16 / +4 | 3 | ✓ Closing observed |
| 10-17 16:43 | 40m | -9 / - | RV3DFC | -13 / -5 | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 113815 -4 2434 DB4VI DF0KK JO31 (x2) 113915 -16 1449 DB4VI DM5ME JO52 (x2) 114000 -21 2201 DM5ME DB4VI RR73 114015 -18 1449 DB4VI DM5ME 73 114500 -17 2201 CQ DB4VI JN39 105630 -1 675 DB4VI DL40EUDXF +13 105700 +0 674 DB4VI RR73; PD0MJC <...> -20 105800 -4 1596 DB4VI OE3RWR JN88 090015 -14 1722 DB4VI OE5FIL JN68 (x4) 090245 -14 1921 DB4VI DB2GM JN47
UTC dB Audio Message 181500 -7 2258 CQ DB4VI JN39 181515 +9 930 DB4VI DL6EL +01 181530 -11 2259 DL6EL DB4VI R+07 181545 +15 930 DB4VI DL6EL RR73 181630 -8 2258 DL6EL DB4VI R+07 234515 -4 969 CQ DB4VI JN39 234530 -5 2062 DB4VI YL2KF KO27 234545 -5 955 YL2KF DB4VI +05 234600 -2 2062 DB4VI YL2KF R+01 234615 -1 955 YL2KF DB4VI RR73 234630 +3 2062 DB4VI YL2KF 73 234630 -24 1602 DB4VI VE3DZ FN03 234645 +1 955 VE3DZ DB4VI -07 234700 -24 1602 DB4VI VE3DZ R-11 234715 -8 955 VE3DZ DB4VI RR73
UTC dB Audio Message 151115 -2 1423 DB4VI DM5MA JO52 151145 -2 1476 DB4VI SP2EWQ R-03 (x2) 151315 -14 1476 DB4VI DL8GBR JN38 (x3) 132615 -24 1631 DB4VI ON4CN -11 (x2) 161530 -3 789 DB4VI DK3GI JN59 161600 -17 1435 DB4VI DL4NHP JN59 (x3) 161830 +5 789 DB4VI DK3GI JN59 (x3)
UTC dB Audio Message 232745 -23 1642 DB4VI DF3JO JO31 (x2) 232945 +5 1642 DB4VI OK1WCF JO80 (x3) 233100 -23 1643 CQ DB4VI JN39
UTC dB Audio Message 082045 -10 2592 DB4VI RW6HPS LN15 (x3) 101815 -12 787 CQ DB4VI JN39 (x5) 104945 -16 1392 SM5KNV DB4VI JN39 182415 -19 1056 DB4VI PY4DY -08 085015 -1 1027 DB4VI UA9MA -18 (x3)
UTC dB Audio Message 084400 -13 829 DB4VI SQ3MZM JO72 (x2) 102715 -24 1421 F1PPH DB4VI -03 103245 -15 2109 K4RUM DB4VI JN39 (x4) 103430 -7 2729 DB4VI K4RUM -09 103445 -13 2109 K4RUM DB4VI R-02 103500 -6 2728 DB4VI K4RUM RR73 104315 +9 1280 DB4VI F5SFT +12 (x3) 093400 -17 1772 CQ DB4VI JN39 (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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