JA8NZB — 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 JA8NZB, decoded by SO8OO in southeastern Poland. 21 FT8 messages attributed to this token as transmitter, on 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-08-20 and 2026-08-30.
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 21 FT8 messages attributed to JA8NZB as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Several six-hour UTC windows tied for the largest share (81%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 21 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -8 dB
- Estimated 10th-90th percentile
- -17 to -1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 3, strong (≥ -8 dB) 11.
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 JA8NZB in decoded directed-looking exchanges:
Most frequent locator attributed to JA8NZB
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
- QN03 · 10 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,073 km (approx.)
- Last such locator decoded
- 2026-08-30 20:44 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 | JA8NZB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-23 21:18 | 40m | - / -16 | RA3ZH | -5 / - | 3 | ✓ Closing fragment |
| 09-04 20:50 | 40m | - / -14 | EX7CQ | -1 / - | 2 | Partial capture |
| 09-04 20:31 | 40m | - / -15 | SV5BYP | 0 / - | 5 | Partial capture |
| 09-02 20:22 | 40m | - / -15 | RN6MA | -2 / - | 3 | Partial capture |
| 09-02 19:49 | 40m | - / -20 | YO4NF | +4 / - | 2 | Partial capture |
| 09-02 19:46 | 40m | - / -13 | US2YW | -8 / - | 4 | Partial capture |
| 08-31 12:34 | 20m | - / -15 | LA2GCA | 0 / - | 2 | Partial capture |
| 08-30 20:48 | 20m | -4 / - | OK2VCR | - / -5 | 2 | ✓ Closing fragment |
| 08-30 20:44 | 20m | -2 / - | 4X5EF | - / -10 | 3 | Partial capture |
| 08-30 20:38 | 20m | -9 / - | HA1BF | -16 / -12 | 4 | ✓ Closing observed |
| 08-30 20:33 | 20m | -7 / 0 | OM3LU | -22 / - | 6 | ✓ Closing observed |
| 08-30 20:21 | 20m | - / - | IK8IUQ | -4 / - | 2 | Partial capture |
| 08-30 20:11 | 20m | - / -7 | IK0PUL | -1 / - | 8 | ✓ Closing fragment |
| 08-29 20:55 | 20m | - / - | T77RN | 0 / - | 2 | ✓ Closing fragment |
| 08-28 21:28 | 20m | - / -4 | A61OK | -8 / - | 2 | ✓ Closing fragment |
| 08-28 21:17 | 20m | - / - | F1SZC | +5 / - | 3 | Partial capture |
| 08-28 21:13 | 20m | - / -4 | 4Z5PT | 0 / - | 2 | ✓ Closing fragment |
| 08-28 06:41 | 20m | - / -25 | GM3AND | -2 / - | 12 | ✓ Closing fragment |
| 08-27 21:10 | 20m | - / -10 | PD0MNO | -19 / - | 8 | Partial capture |
| 08-27 21:06 | 20m | - / -14 | DL0BSO | 0 / - | 6 | Partial capture |
| 08-27 20:55 | 20m | - / -10 | I2SDD | -11 / - | 4 | Partial capture |
| 08-27 20:50 | 20m | - / -9 | F5CCX | +3 / - | 3 | ✓ Closing fragment |
| 08-25 21:09 | 20m | - / - | CR7BRV | +11 / - | 2 | Partial capture |
| 08-25 21:03 | 20m | - / - | CR7BRV | +12 / - | 4 | Partial capture |
| 08-25 21:02 | 20m | - / - | EB5GG | -10 / - | 3 | Partial capture |
| 08-25 21:02 | 20m | - / - | F4IBJ | +2 / - | 4 | Partial capture |
| 08-25 21:01 | 20m | - / - | G8IXM | -10 / - | 2 | Partial capture |
| 08-25 13:37 | 20m | - / - | A61FJ | -16 / - | 2 | Partial capture |
| 08-25 13:35 | 20m | -17 / - | HA9PP | - / - | 3 | Partial capture |
| 08-25 04:47 | 20m | - / -15 | CE1KR | +1 / - | 2 | ✓ Closing fragment |
| 08-25 04:35 | 20m | - / -12 | PW8BR | -6 / - | 2 | ✓ Closing fragment |
| 08-24 12:55 | 20m | - / -11 | ON4AOI | +5 / - | 2 | ✓ Closing fragment |
| 08-24 12:52 | 20m | - / -22 | IU5HIU | -1 / - | 3 | Partial capture |
| 08-24 05:59 | 20m | - / +7 | HC2GRC | -11 / - | 2 | ✓ Closing fragment |
| 08-22 20:41 | 20m | - / -12 | HB9EKJ | -22 / - | 6 | ✓ Closing fragment |
| 08-22 20:20 | 20m | - / -19 | EA7AQY | -8 / - | 2 | Partial capture |
| 08-22 20:18 | 20m | - / -9 | BG7BMG | -16 / - | 4 | Partial capture |
| 08-22 20:15 | 20m | - / -18 | EA3IE | 0 / - | 3 | Partial capture |
| 08-21 20:54 | 20m | - / -13 | OE9GWV | -5 / - | 3 | Partial capture |
| 08-21 20:49 | 20m | - / -13 | 9A5MP | -20 / - | 2 | Partial capture |
| 08-21 20:43 | 20m | - / -13 | 9A5MP | -16 / - | 2 | Partial capture |
| 08-21 20:13 | 20m | - / -16 | DB9LG | +1 / - | 4 | Partial capture |
| 08-21 20:12 | 20m | - / -8 | IN3MBS | -12 / - | 2 | Partial capture |
| 08-21 20:05 | 20m | - / -13 | DL3MIB | +12 / - | 4 | ✓ Closing fragment |
| 08-21 00:52 | 20m | - / -15 | HA1BF | -12 / - | 8 | Partial capture |
| 08-02 06:51 | 10m | - / -3 | UR3HC | -5 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 195015 +6 252 JA8NZB YO4NF -20 200900 -5 2630 JA8NZB R5BS KO85 202245 -2 509 JA8NZB RN6MA -15 (x3) 203100 -1 1752 JA8NZB SV5BYP -15 (x5) 205000 +0 1736 JA8NZB EX7CQ -14 (x2) 211815 +0 483 JA8NZB RA3ZH KO81 (x3)
UTC dB Audio Message 203445 -22 1870 JA8NZB OM3LU RR73 203500 -8 1871 OM3LU JA8NZB 73 203515 -21 1870 JA8NZB OM3LU 73 203815 -9 1217 EX7DY JA8NZB 73 203845 -9 1344 HA1BF JA8NZB QN03 (x2) 203930 -16 1344 JA8NZB HA1BF RR73 203945 -8 1345 HA1BF JA8NZB 73 204430 -1 1087 4X5EF JA8NZB QN03 (x3) 204830 -2 1087 OK2VCR JA8NZB -05 (x2) 123400 +5 958 JA8NZB LA2GCA -15 (x2)
UTC dB Audio Message 064400 -20 1286 JA8NZB UR3HC -12 (x3)
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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