JA8UIV — 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 JA8UIV, decoded by SO8OO in southeastern Poland. 66 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 15 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-11-01.
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 66 FT8 messages attributed to JA8UIV as the transmitting token by decoded message structure across 15 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (71%), followed by 20 m (15%) and 40 m (14%). Several six-hour UTC windows tied for the largest share (98%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.
Overview
Bands
Last attributed message: 2026-11-01 20:21 UTC
Observed FT8 message patterns
- Attributed sample
- 66 messages
- Active dates
- 15 UTC dates
- Estimated median S/N
- -12 dB
- Estimated 10th-90th percentile
- -19 to -7 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 21, moderate (-15 to -9 dB) 30, strong (≥ -8 dB) 15.
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 JA8UIV 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 JA8UIV
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 · 30 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,073 km (approx.)
- Last such locator decoded
- 2026-11-01 20:21 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 | JA8UIV S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-25 21:19 | 80m | - / -11 | 4O4A | +13 / - | 3 | Partial capture |
| 10-25 20:57 | 80m | -14 / - | 4O4A | - / -5 | 4 | Partial capture |
| 10-18 20:19 | 80m | - / -16 | SP6GCU | +14 / - | 2 | Partial capture |
| 10-18 20:17 | 80m | -7 / -14 | OT7K | +12 / -24 | 6 | ✓ Full exchange observed |
| 10-18 20:16 | 80m | - / - | DL8UNO | +2 / - | 8 | Partial capture |
| 10-18 20:16 | 80m | - / - | DL2MIJ | -4 / - | 2 | Partial capture |
| 10-18 20:15 | 80m | - / - | LY1DY | +12 / - | 4 | Partial capture |
| 10-18 20:14 | 80m | - / -16 | SP6GCU | +8 / - | 2 | Partial capture |
| 10-18 20:13 | 80m | -11 / -20 | IK1UGX | 0 / -20 | 10 | ✓ Full exchange observed |
| 10-18 20:11 | 80m | -8 / -12 | ON6AA | -5 / -10 | 5 | ✓ Full exchange observed |
| 10-18 20:09 | 80m | -10 / - | ON8DM | - / -12 | 4 | ✓ Closing fragment |
| 10-18 20:06 | 80m | -12 / -19 | UW5KW | +10 / -15 | 4 | ✓ Full exchange observed |
| 10-18 20:04 | 80m | -10 / - | ON6LEO | - / - | 2 | Partial capture |
| 10-18 20:03 | 80m | -10 / - | YU7BW | - / - | 2 | Partial capture |
| 10-18 20:02 | 80m | -12 / - | 9A2G | - / - | 2 | Partial capture |
| 10-15 20:42 | 80m | - / -16 | RZ4M | -4 / - | 4 | Partial capture |
| 10-15 20:41 | 80m | - / -13 | LX1JH | +12 / - | 2 | ✓ Closing fragment |
| 10-14 19:38 | 80m | - / - | RK6OQ | -10 / - | 2 | Partial capture |
| 10-14 19:37 | 80m | - / - | 9A5E | 0 / - | 6 | Partial capture |
| 10-14 19:37 | 80m | -20 / -9 | OM5FM | +14 / - | 3 | ✓ Closing observed |
| 10-14 18:37 | 80m | - / -16 | UN7LAN | -21 / - | 2 | ✓ Closing fragment |
| 10-14 18:30 | 80m | - / - | RA3ICA | -3 / - | 2 | Partial capture |
| 10-14 18:20 | 80m | - / - | RZ3ZY | -2 / - | 5 | Partial capture |
| 10-14 18:20 | 80m | - / -16 | YO4CPO | -5 / - | 4 | ✓ Closing fragment |
| 10-14 18:19 | 80m | - / -18 | IZ0ZIP | -6 / - | 4 | Partial capture |
| 10-14 18:18 | 80m | - / -20 | RU3T | +3 / - | 3 | ✓ Closing fragment |
| 10-14 18:15 | 80m | - / - | OZ8ABA | +7 / - | 6 | Partial capture |
| 10-14 18:07 | 80m | -23 / -16 | OZ8ABA | +6 / -18 | 7 | ✓ Full exchange observed |
| 10-14 18:07 | 80m | -17 / -11 | UR4LRG | 0 / -9 | 5 | ✓ Full exchange observed |
| 10-14 18:06 | 80m | - / - | RU3T | -4 / - | 2 | Partial capture |
| 10-14 18:04 | 80m | - / -21 | DK7ZT | +6 / - | 5 | Partial capture |
| 10-14 18:04 | 80m | -21 / -10 | HB9CXZ | +6 / - | 7 | ✓ Closing observed |
| 10-14 18:04 | 80m | -18 / -9 | RZ3DJ | -4 / -8 | 5 | ✓ Full exchange observed |
| 10-14 18:03 | 80m | -19 / -11 | E79D | +18 / -12 | 4 | ✓ Full exchange observed |
| 10-13 20:47 | 80m | - / - | IV3DXW | +14 / - | 2 | Partial capture |
| 10-13 20:45 | 80m | - / - | RA5BM | -2 / - | 2 | Partial capture |
| 10-13 20:43 | 80m | - / -16 | RO2X | -3 / - | 9 | ✓ Closing fragment |
| 10-13 20:29 | 80m | - / -12 | UX1AA | -4 / - | 2 | ✓ Closing fragment |
| 09-29 20:41 | 80m | - / - | UX5UO | +12 / - | 2 | Partial capture |
| 09-27 20:51 | 80m | - / -14 | SP9JZU | +7 / - | 2 | ✓ Closing fragment |
| 09-27 20:47 | 80m | - / -16 | YL3OI | +2 / - | 2 | ✓ Closing fragment |
| 09-27 20:43 | 80m | -17 / -18 | OH1TSM | +3 / -15 | 4 | ✓ Full exchange observed |
| 09-27 20:28 | 80m | - / - | LY1DY | +11 / - | 3 | Partial capture |
| 09-27 20:28 | 80m | - / -11 | RA3WY | -4 / - | 3 | ✓ Closing fragment |
| 09-27 20:26 | 80m | -12 / -17 | OH2BGD | +10 / - | 6 | ✓ Closing observed |
| 09-27 20:25 | 80m | -14 / -12 | YL2AO | +10 / - | 5 | ✓ Closing observed |
| 09-27 19:41 | 80m | -19 / -9 | SP2HNF | +13 / - | 4 | ✓ Closing observed |
| 09-27 19:23 | 40m | - / - | EA3AAY | -13 / - | 3 | Partial capture |
| 09-27 19:22 | 40m | - / -1 | RX3DQX | -8 / - | 7 | Partial capture |
| 09-27 19:22 | 40m | - / -3 | DK7ZT | -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 201900 +10 2753 JA8UIV SP6GCU -16 201900 +4 1349 JA8UIV DL8UNO JO71 201930 +18 2753 JA8UIV SP6GCU -16 201930 +3 1348 JA8UIV DL8UNO JO71 202000 -12 1512 JA8UIV UR5WDG KO20 202000 +1 1349 JA8UIV DL8UNO JO71 205715 -16 2860 4O4A JA8UIV -05 (x4) 211930 +14 2733 JA8UIV 4O4A -11 (x3) 201915 +1 1368 JA8UIV YO3FBD KN34 202130 -14 371 Z62NS JA8UIV QN03
UTC dB Audio Message 203100 +19 2754 JA8UIV SP2HNF -21 201915 +3 2672 JA8UIV ON4IQ R-19
UTC dB Audio Message 192200 -11 1907 JA8UIV DK7ZT -03 192230 -12 895 JA8UIV SV1MOZ KM17 192230 -11 1383 JA8UIV RX3DQX KO94 192230 +1 1907 JA8UIV DK7ZT -03 192230 +4 506 JA8UIV DB4JW/QRP -12 192300 -8 1383 JA8UIV RX3DQX KO94 (x2) 192330 -11 1439 JA8UIV EA3AAY JN11 192400 -7 1383 JA8UIV RX3DQX KO94 (x3) 192500 -11 1440 JA8UIV EA3AAY JN11 192530 -13 1383 JA8UIV RX3DQX R-01 192630 +1 384 JA8UIV R1BDX KO59 192630 -16 1439 JA8UIV EA3AAY JN11
UTC dB Audio Message 224700 -10 510 JA8UIV UX1VT KN68 (x2) 224915 -13 2380 JA8UIV UN0GY -11 201945 -7 2851 JA8UIV LY1DX -10
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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