7Z1BM — 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 7Z1BM, decoded by SO8OO in southeastern Poland. 2,773 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 37 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-29.
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 2,773 FT8 messages attributed to 7Z1BM as the transmitting token by decoded message structure across 37 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%), followed by 40 m (0%) and 10 m (0%). Most decodes (82%) 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 -12 dB.
Overview
Bands
Last attributed message: 2026-09-29 07:45 UTC
Observed FT8 message patterns
- Attributed sample
- 2,773 messages
- Active dates
- 37 UTC dates
- Estimated median S/N
- -12 dB
- Estimated 10th-90th percentile
- -19 to -5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 762, moderate (-15 to -9 dB) 1,348, strong (≥ -8 dB) 663.
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 7Z1BM 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 7Z1BM
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
- LL09 · 1,527 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,787 km (approx.)
- Last such locator decoded
- 2026-08-23 17:53 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 | 7Z1BM S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-01 19:54 | 40m | - / -14 | RD3FY | -2 / - | 2 | ✓ Closing fragment |
| 10-01 19:44 | 40m | - / - | RD3FY | 0 / - | 4 | Partial capture |
| 10-01 19:33 | 40m | - / -23 | YO4FZV | -4 / - | 3 | ✓ Closing fragment |
| 09-30 16:35 | 40m | - / - | UB2FEK | -9 / - | 2 | Partial capture |
| 09-30 16:32 | 40m | - / -9 | LZ2XF | +4 / - | 4 | ✓ Closing fragment |
| 09-30 16:27 | 40m | - / -19 | YO7CFD | +12 / - | 2 | ✓ Closing fragment |
| 09-30 16:12 | 40m | - / - | DG6ITP | -4 / - | 2 | Partial capture |
| 09-30 16:08 | 40m | - / -16 | SV1BLD | +10 / - | 4 | ✓ Closing fragment |
| 09-30 15:58 | 40m | - / -13 | R2ASV | -2 / - | 2 | ✓ Closing fragment |
| 09-30 15:55 | 40m | - / -19 | DK9FE | +8 / - | 4 | Partial capture |
| 09-30 15:47 | 40m | - / -20 | YO2NAA | 0 / - | 2 | Partial capture |
| 09-30 15:42 | 40m | - / -7 | RD7LC | +2 / - | 2 | ✓ Closing fragment |
| 09-29 07:42 | 10m | -24 / - | 5W1SA | - / -15 | 4 | Partial capture |
| 08-23 17:52 | 20m | -6 / -13 | RW6MAO | +9 / -10 | 5 | ✓ Full exchange observed |
| 08-23 17:51 | 20m | -6 / - | R6ADH | -18 / -11 | 3 | ✓ Full exchange observed |
| 08-23 17:45 | 20m | -3 / - | Z21ML | - / -15 | 3 | ✓ Closing fragment |
| 08-23 17:09 | 20m | -2 / - | SP3SXU | - / -13 | 6 | Partial capture |
| 08-23 17:05 | 20m | - / - | IZ2KXB | -10 / - | 8 | Partial capture |
| 08-23 17:05 | 20m | +3 / - | VU3KOD | -19 / - | 2 | ✓ Closing observed |
| 08-23 16:58 | 20m | -4 / - | ES3NA | - / -10 | 2 | ✓ Closing fragment |
| 08-23 16:57 | 20m | - / -17 | BH8RDW | -4 / - | 2 | Partial capture |
| 08-23 16:56 | 20m | -4 / - | DG2XB | - / -16 | 2 | ✓ Closing fragment |
| 08-23 16:55 | 20m | -3 / - | SP2HJN | - / -13 | 2 | ✓ Closing fragment |
| 08-23 16:52 | 20m | -8 / - | BG7BVI | -15 / -15 | 4 | ✓ Closing observed |
| 08-23 16:52 | 20m | -2 / -13 | M0LAD | +7 / -19 | 17 | ✓ Full exchange observed |
| 08-23 16:46 | 20m | -8 / - | YL3FO | - / -14 | 10 | Partial capture |
| 08-23 16:44 | 20m | -8 / -9 | F8FFV | +7 / -18 | 4 | Partial capture |
| 08-23 16:43 | 20m | - / - | M0LAD | +10 / - | 4 | Partial capture |
| 08-23 16:41 | 20m | -12 / - | UT4WT | - / -12 | 2 | Partial capture |
| 08-23 16:41 | 20m | - / - | M3ONL | -8 / - | 2 | Partial capture |
| 08-23 16:40 | 20m | -10 / - | UB4CLH | - / -14 | 2 | ✓ Closing fragment |
| 08-23 16:38 | 20m | -8 / - | UA3LKM | - / -12 | 2 | ✓ Closing fragment |
| 08-23 16:37 | 20m | -8 / - | BG8PN | - / -12 | 2 | ✓ Closing fragment |
| 08-23 16:37 | 20m | - / - | G4FHL | 0 / - | 6 | Partial capture |
| 08-23 16:36 | 20m | - / - | M0LAD | +10 / - | 3 | Partial capture |
| 08-23 16:30 | 20m | -11 / - | ZR6AGA | - / -14 | 2 | ✓ Closing fragment |
| 08-23 16:29 | 20m | -10 / -24 | CT2IGO | -6 / - | 11 | ✓ Closing observed |
| 08-23 16:28 | 20m | -7 / -5 | BI1AFK | +5 / -4 | 6 | ✓ Full exchange observed |
| 08-23 16:26 | 20m | - / - | M0LAD | +4 / - | 4 | Partial capture |
| 08-23 16:22 | 20m | - / - | F4MXU | -12 / - | 2 | Partial capture |
| 08-23 16:22 | 20m | -11 / +2 | RU4D | -8 / - | 4 | ✓ Full exchange observed |
| 08-15 04:35 | 20m | -23 / - | W6YLZ | - / -13 | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 163230 +4 1683 7Z1BM LZ2XF KN33 (x3) 163500 -9 3000 7Z1BM UB2FEK KO04 (x2) 163630 -11 1443 7Z1BM R3KAB R-12 193330 -8 2100 7Z1BM YO4FZV KN44 (x3) 194430 +2 2721 7Z1BM RD3FY KO85 (x6)
UTC dB Audio Message 074215 -23 1795 5W1SA 7Z1BM -15 (x4)
UTC dB Audio Message 175030 -9 931 CQ 7Z1BM LL09 175045 -12 1799 7Z1BM R6OIW KN86 175045 -9 930 7Z1BM PA0ARR -01 175100 -6 931 R6ADH 7Z1BM -11 175115 -20 931 7Z1BM R6ADH R+11 (x2) 175200 -3 931 CQ 7Z1BM LL09 175215 +15 1526 7Z1BM RW6MAO KN97 175230 -6 931 RW6MAO 7Z1BM -10 175245 +5 1526 7Z1BM RW6MAO R-13 175300 -5 931 RW6MAO 7Z1BM RR73 175315 +7 1526 7Z1BM RW6MAO 73 175330 -3 931 CQ 7Z1BM LL09 175400 +0 931 YO4GGA 7Z1BM -12 185930 -5 1353 NL8F 7Z1BM -22
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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