SV1DZB — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SV1DZB, decoded by SO8OO in southeastern Poland. 2,366 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 56 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-10-14.
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 2,366 FT8 messages attributed to SV1DZB as the transmitting token by decoded message structure across 56 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (47%), followed by 60 m (33%) and 80 m (14%). Most decodes (94%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9.6 dB.
Overview
Bands
Last attributed message: 2026-10-14 22:45 UTC
Observed FT8 message patterns
- Attributed sample
- 2,366 messages
- Active dates
- 56 UTC dates
- Estimated median S/N
- -9.6 dB
- Estimated 10th-90th percentile
- -17 to +1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 400, moderate (-15 to -9 dB) 906, strong (≥ -8 dB) 1,060.
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 SV1DZB 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 SV1DZB
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
- KM18 · 1,478 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,275 km (approx.)
- Last such locator decoded
- 2026-10-14 22:42 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 | SV1DZB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-14 22:41 | 40m | -5 / -12 | N3OC | -4 / -7 | 12 | ✓ Full exchange observed |
| 10-14 22:37 | 40m | -6 / -4 | F4HKP | -2 / -19 | 5 | ✓ Full exchange observed |
| 10-14 22:34 | 40m | -6 / - | UA9FLI | - / -20 | 5 | ✓ Closing fragment |
| 10-14 22:27 | 40m | -1 / - | UA9SY | - / -14 | 2 | ✓ Closing fragment |
| 10-14 22:25 | 40m | +2 / - | F3CJ | - / -13 | 4 | ✓ Closing fragment |
| 10-14 22:24 | 40m | -5 / - | DH8FAC | - / -15 | 2 | ✓ Closing fragment |
| 10-14 22:16 | 40m | -4 / - | BG0FQU | - / -21 | 8 | ✓ Closing fragment |
| 10-14 22:13 | 40m | -3 / - | EP2AES | - / - | 5 | Partial capture |
| 10-14 22:10 | 40m | +1 / - | PE4C | - / -21 | 6 | ✓ Closing fragment |
| 10-14 22:05 | 40m | -13 / - | SP9OJ | - / -6 | 3 | ✓ Closing fragment |
| 10-14 22:03 | 40m | -10 / - | OK1HEH | - / -16 | 2 | ✓ Closing fragment |
| 10-14 22:00 | 40m | +5 / - | R3YCJ | - / - | 2 | Partial capture |
| 10-14 21:57 | 40m | -7 / - | BG0FQU | - / - | 5 | Partial capture |
| 10-14 21:42 | 40m | -4 / - | 9A1UN | - / - | 3 | Partial capture |
| 10-14 21:34 | 40m | -5 / - | UR4QWW | - / - | 3 | Partial capture |
| 10-14 21:29 | 40m | -8 / - | EA5KB | - / - | 5 | Partial capture |
| 10-14 21:24 | 40m | -7 / - | G1UZL | - / - | 6 | Partial capture |
| 10-14 21:21 | 40m | -6 / - | OE3HPT | - / -4 | 4 | ✓ Closing fragment |
| 10-14 21:19 | 40m | -9 / - | JA9CZE | - / - | 3 | Partial capture |
| 10-14 21:08 | 40m | -5 / - | DF9DL | - / -17 | 2 | ✓ Closing fragment |
| 10-14 20:42 | 40m | -7 / -22 | M1DZI | +2 / - | 6 | Partial capture |
| 10-14 20:32 | 40m | -13 / - | BI6AN | - / -15 | 2 | ✓ Closing fragment |
| 10-14 20:29 | 40m | -13 / - | SP6AMI | - / 0 | 3 | ✓ Closing fragment |
| 10-14 20:23 | 40m | -10 / - | UA9YBF | -9 / -14 | 9 | ✓ Closing observed |
| 10-13 22:24 | 40m | -11 / -3 | IZ1TMO | -4 / -13 | 5 | ✓ Full exchange observed |
| 10-13 22:15 | 40m | - / -12 | IK1MJL | +6 / - | 2 | ✓ Closing fragment |
| 10-13 22:14 | 40m | -6 / - | UR4QWW | - / - | 3 | Partial capture |
| 10-13 22:11 | 40m | -11 / - | SP9ENV | - / -20 | 3 | ✓ Closing fragment |
| 10-13 22:00 | 40m | -12 / - | BG0FQU | - / - | 3 | Partial capture |
| 10-13 21:54 | 40m | -12 / - | IZ1TMO | - / - | 2 | Partial capture |
| 10-13 21:34 | 40m | -8 / - | EI3KVB | - / -20 | 3 | Partial capture |
| 10-12 20:23 | 60m | -11 / -13 | S57MPU | -5 / -15 | 5 | ✓ Full exchange observed |
| 10-12 20:17 | 60m | -10 / -2 | UT5ECZ | -8 / -12 | 5 | ✓ Full exchange observed |
| 10-12 20:16 | 60m | -14 / +3 | G3SJX | -3 / - | 4 | ✓ Closing observed |
| 10-12 20:08 | 60m | -12 / - | BD8ENU | - / -22 | 3 | ✓ Closing fragment |
| 10-12 20:02 | 60m | -13 / - | BD8ENU | - / - | 3 | Partial capture |
| 10-12 19:37 | 60m | -11 / +8 | G3TKT | -6 / -19 | 7 | ✓ Full exchange observed |
| 10-12 19:34 | 60m | -11 / +2 | DL4DQL | -14 / -20 | 7 | ✓ Full exchange observed |
| 10-12 19:30 | 60m | -13 / - | SP5TIC | -23 / -13 | 3 | ✓ Closing observed |
| 10-12 19:25 | 60m | -10 / - | LY2EW | -8 / -19 | 4 | ✓ Closing observed |
| 10-12 19:22 | 60m | -14 / - | SQ8AA | - / -17 | 2 | ✓ Closing fragment |
| 10-12 19:20 | 60m | -12 / -3 | EI2GLB | +8 / -8 | 5 | ✓ Full exchange observed |
| 10-12 19:16 | 60m | -10 / - | S57MPU | - / - | 8 | Partial capture |
| 10-12 19:13 | 60m | -12 / +3 | S58X | +2 / -19 | 5 | ✓ Full exchange observed |
| 10-11 22:24 | 60m | -12 / - | A92AE | - / -14 | 4 | ✓ Closing fragment |
| 10-11 19:47 | 80m | - / -17 | T77R | 0 / - | 2 | Partial capture |
| 10-11 19:13 | 60m | -12 / - | <...> | - / - | 2 | Partial capture |
| 10-11 19:07 | 60m | -15 / - | 9H6C | - / -17 | 8 | ✓ Closing fragment |
| 10-09 21:58 | 40m | -13 / - | S79KW | - / - | 6 | Partial capture |
| 10-09 21:55 | 40m | -13 / - | EY7BM | - / -21 | 4 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 223915 -13 2096 CQ SV1DZB KM18 (x3) 224115 -12 2096 N3OC SV1DZB KM18 (x4) 224400 -3 518 SV1DZB N3OC -12 224415 +0 518 N3OC SV1DZB R-07 224430 -3 517 SV1DZB N3OC -12 224445 +0 518 N3OC SV1DZB R-08 224500 -4 517 SV1DZB N3OC -12 224515 -1 518 N3OC SV1DZB R-08 224530 -4 517 SV1DZB N3OC RR73 224545 +1 518 N3OC SV1DZB 73
UTC dB Audio Message 200915 -14 1702 BD8ENU SV1DZB 73 201615 -16 1702 G3SJX SV1DZB KM18 201630 -3 823 SV1DZB G3SJX +03 (x2) 201715 -13 1702 G3SJX SV1DZB 73 201745 -9 1702 UT5ECZ SV1DZB KM18 201800 -8 1851 SV1DZB UT5ECZ -02 201815 -10 1702 UT5ECZ SV1DZB R-12 201830 -8 1851 SV1DZB UT5ECZ RR73 201845 -11 1702 UT5ECZ SV1DZB 73 202330 -5 250 SV1DZB S57MPU -13 202345 -16 1702 S57MPU SV1DZB R-15 202400 -3 250 SV1DZB S57MPU RR73 202415 -6 1702 S57MPU SV1DZB 73 202430 -6 250 SV1DZB S57MPU 73
UTC dB Audio Message 205430 -4 1388 SV1DZB II5GG RR73 205445 -6 1388 II5GG SV1DZB 73 205630 -15 1254 IQ2AAH SV1DZB KM18 205645 -3 1254 SV1DZB IQ2AAH -08 (x2) 210330 -15 2171 R9AL SV1DZB KM18 (x2) 210445 +8 1667 SV1DZB UA3AGW KO85 (x3) 194030 -16 1890 DB100FT SV1DZB KM18 194100 -21 1889 HF40BLP SV1DZB R-13 194230 -19 1890 T77R SV1DZB KM18 194715 +0 1103 SV1DZB T77R -17 (x2)
UTC dB Audio Message 190145 +0 1497 SV1DZB DL8OH -21 (x3) 200215 -24 1608 SV1DZB SV1DKR -06 (x2) 193530 +11 827 SV1DZB S57MPU JN76 (x3)
UTC dB Audio Message 211815 -13 2077 JA1SJS SV1DZB R-08 211830 -7 2735 SV1DZB JA1SJS RR73 211845 -13 2077 JA1SJS SV1DZB 73 214630 -14 2078 JH4MGU SV1DZB KM18 214645 -3 2424 SV1DZB JH4MGU -07 (x2) 215030 -1 1391 SV1DZB MW1CFA -04 (x9)
UTC dB Audio Message 190915 -15 1970 OM0AFM SV1DZB R-07 191115 -16 1969 US1VS SV1DZB 73 094930 -11 593 IK4HLQ SV1DZB R-20 095230 -12 593 DN9MJK SV1DZB KM18 095445 -13 593 4X1QQ SV1DZB KM18 095715 -9 593 YO4GIY SV1DZB R-03 (x2) 095815 -7 593 S58E SV1DZB KM18 (x2) 095945 -11 593 IT9BYL SV1DZB R-02
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.
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