JA7JWF — 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 JA7JWF, decoded by SO8OO in southeastern Poland. 32 FT8 messages attributed to this token as transmitter, on 160m, 80m, 20m, 10m, across 7 UTC dates in the available aggregate history. Observed between 2026-08-28 and 2026-11-06.
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 32 FT8 messages attributed to JA7JWF as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (75%), followed by 20 m (16%) and 10 m (6%). Several six-hour UTC windows tied for the largest share (94%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.
Overview
Bands
Last attributed message: 2026-11-06 08:39 UTC
Observed FT8 message patterns
- Attributed sample
- 32 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- -16 dB
- Estimated 10th-90th percentile
- -23 to -12 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 18, moderate (-15 to -9 dB) 14, strong (≥ -8 dB) 0.
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 JA7JWF 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 JA7JWF
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
- QM08 · 18 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,525 km (approx.)
- Last such locator decoded
- 2026-11-06 08:39 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 | JA7JWF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-06 08:39 | 10m | -18 / - | <...> | - / -18 | 2 | Partial capture |
| 11-05 21:16 | 80m | - / -18 | OE8DDX | +15 / - | 2 | ✓ Closing fragment |
| 11-05 20:55 | 80m | - / -16 | F5UKW | -4 / - | 2 | ✓ Closing fragment |
| 11-05 20:34 | 80m | - / - | UX5UO | -4 / - | 2 | Partial capture |
| 11-04 21:19 | 80m | - / - | ER3UA | -10 / - | 2 | Partial capture |
| 11-04 21:12 | 160m | - / -20 | RU3GF | +8 / - | 4 | ✓ Closing fragment |
| 11-04 21:12 | 160m | - / - | IW4EGP | -9 / - | 5 | Partial capture |
| 11-04 21:10 | 160m | - / - | IT9KSS | +2 / - | 2 | Partial capture |
| 11-04 21:04 | 160m | - / -17 | IT9GSF | 0 / - | 4 | ✓ Closing fragment |
| 11-03 20:35 | 160m | - / - | OK1XV | 0 / - | 2 | Partial capture |
| 11-03 20:33 | 160m | -24 / -14 | S53R | +22 / - | 3 | ✓ Closing observed |
| 11-01 21:11 | 80m | - / - | EA3EDU | -10 / - | 2 | Partial capture |
| 11-01 21:08 | 80m | - / - | RT6Z | -3 / - | 4 | Partial capture |
| 11-01 20:29 | 160m | - / - | F6BPZ | -5 / - | 3 | Partial capture |
| 11-01 20:24 | 160m | - / -23 | EW1I | +16 / - | 3 | Partial capture |
| 11-01 20:22 | 160m | - / - | OZ2LIN | -6 / - | 2 | Partial capture |
| 11-01 20:21 | 160m | - / -20 | SV8QG | -17 / - | 3 | ✓ Closing fragment |
| 11-01 20:20 | 160m | - / -12 | SM0CXS | -2 / - | 2 | ✓ Closing fragment |
| 10-31 21:46 | 40m | - / - | F5PBG | +6 / - | 2 | Partial capture |
| 10-31 21:45 | 40m | - / - | EA8AR | -13 / - | 3 | Partial capture |
| 10-31 21:38 | 40m | - / - | F5PBG | +8 / - | 2 | Partial capture |
| 10-31 21:36 | 40m | - / -15 | C31CT | -5 / - | 2 | ✓ Closing fragment |
| 10-31 20:40 | 160m | - / -18 | UT6HN | +2 / - | 2 | ✓ Closing fragment |
| 10-31 20:27 | 160m | - / -12 | RU3DNN | -8 / - | 3 | ✓ Closing fragment |
| 10-31 20:27 | 160m | - / - | SP1D | +5 / - | 3 | Partial capture |
| 10-31 20:15 | 160m | - / -18 | OM2ZZ | +9 / - | 3 | ✓ Closing fragment |
| 10-29 21:22 | 160m | - / -20 | IW4EGP | +5 / - | 2 | Partial capture |
| 10-29 21:20 | 160m | - / -17 | OH8SR | -2 / - | 3 | ✓ Closing fragment |
| 10-29 21:14 | 160m | - / -16 | R5WW | +1 / - | 3 | ✓ Closing fragment |
| 10-29 21:12 | 160m | - / -19 | DF2UU | 0 / - | 3 | ✓ Closing fragment |
| 10-29 21:06 | 160m | - / - | SP8VJV | +8 / - | 4 | Partial capture |
| 10-29 21:05 | 160m | - / -22 | G4IRN | -1 / - | 2 | ✓ Closing fragment |
| 10-29 21:04 | 160m | - / -19 | DK7ZT | -13 / - | 5 | Partial capture |
| 10-29 21:03 | 160m | - / -22 | LA6YEA | -4 / - | 2 | ✓ Closing fragment |
| 10-29 20:49 | 160m | - / -13 | LA0FA | 0 / - | 2 | ✓ Closing fragment |
| 10-29 20:43 | 160m | - / -16 | IS0ZOD | -1 / - | 3 | ✓ Closing fragment |
| 10-29 20:40 | 160m | - / - | SP3BPU | +5 / - | 12 | Partial capture |
| 10-29 20:39 | 160m | - / -13 | ON8DM | +1 / - | 2 | ✓ Closing fragment |
| 10-29 20:37 | 160m | - / -14 | F8FKI | +8 / - | 2 | ✓ Closing fragment |
| 10-29 20:35 | 160m | - / -13 | UA4CC | -16 / - | 2 | ✓ Closing fragment |
| 10-29 20:29 | 160m | - / -16 | IW4AOT | -2 / - | 4 | ✓ Closing fragment |
| 10-29 20:27 | 160m | - / -15 | RA6MQ/P | -8 / - | 3 | ✓ Closing fragment |
| 10-29 20:27 | 160m | - / -22 | DK7ZT | -17 / - | 5 | Partial capture |
| 10-29 20:27 | 160m | - / -18 | IW0RGN | -2 / - | 2 | Partial capture |
| 10-29 20:26 | 160m | - / -7 | F4EZJ | -4 / - | 2 | ✓ Closing fragment |
| 10-29 20:25 | 160m | - / - | SP8VJV | -2 / - | 2 | Partial capture |
| 10-29 20:24 | 160m | - / - | OM3RP | +6 / - | 2 | Partial capture |
| 10-29 20:23 | 160m | - / -16 | ON7NQ | -4 / - | 5 | ✓ Closing fragment |
| 10-29 20:18 | 160m | - / -8 | OK2BPU | 0 / - | 4 | ✓ Closing fragment |
| 10-29 20:15 | 160m | - / -15 | DF6PW | +11 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 102845 -5 1221 JA7JWF EA3AKY RR73 103445 -10 1841 JA7JWF F4FSY -08 (x5) 104145 -14 702 JA7JWF HB9XBY RR73 104315 -9 389 JA7JWF F4IVI -07 104400 -7 2747 JA7JWF EA3FCQ JN01 104430 -5 334 JA7JWF F4IVI -17 (x2) 111045 -3 2125 JA7JWF CT2IBL -13 (x2) 083915 -17 1222 <...> JA7JWF QM08 (x2)
UTC dB Audio Message 210915 -3 2917 JA7JWF RT6Z KN98 (x2) 211145 -11 1300 JA7JWF EA3EDU JN01 (x2) 202230 +7 686 JA7JWF UX5UO KO50 211900 -5 2104 JA7JWF ER3UA KN37 (x2) 212045 -16 639 CT2KNA JA7JWF QM08 212245 -14 639 OK2BUZ JA7JWF QM08 203415 -4 921 JA7JWF UX5UO KO50 (x2) 205530 -6 2435 JA7JWF F5UKW -16 (x2) 211630 +16 2554 JA7JWF OE8DDX -18 (x2)
UTC dB Audio Message 210430 +3 1793 JA7JWF IT9GSF -17 (x2) 210530 -17 1587 JA7JWF YO4CPO KN44 210530 -1 1793 JA7JWF IT9GSF RR73 211000 +3 1067 JA7JWF IT9KSS JM68 (x2) 211200 -8 1363 JA7JWF IW4EGP JN64 211230 +7 2322 JA7JWF RU3GF KO92 211230 -11 1363 JA7JWF IW4EGP JN64 211300 +8 2322 JA7JWF RU3GF KO92 211300 -23 1363 JA7JWF IW4EGP JN64 211330 +10 2322 JA7JWF RU3GF R-20 (x2) 211430 -5 1363 JA7JWF IW4EGP JN64 (x2)
UTC dB Audio Message 204130 +15 2260 JA7JWF ON4IQ JO20 (x4) 204430 -4 2364 JA7JWF RN2F RR73 213100 -24 1650 JA7JWF IU7IVX JN80 213600 -7 2357 JA7JWF C31CT -15 (x2) 213830 +6 2693 JA7JWF F5PBG IN78 (x2) 214530 -11 1784 JA7JWF EA8AR IL18 214600 +5 2692 JA7JWF F5PBG IN78 214600 -12 1785 JA7JWF EA8AR IL18 214630 +7 2692 JA7JWF F5PBG IN78 214630 -15 1785 JA7JWF EA8AR IL18
UTC dB Audio Message 210430 +7 377 JA7JWF <...> 73 210615 +20 407 JA7JWF EA8UP -11 (x2) 210815 -1 584 JA7JWF EC3A -08 (x2) 210945 +3 496 JA7JWF EB3DBR JN11 211015 -18 1654 JA7JWF F4IBJ R-15 211015 -1 495 JA7JWF EB3DBR JN11 211215 +3 913 JA7JWF F4JVF IN95 (x5) 211515 -8 1877 JA7JWF EA6TU -16 (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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