JA7BXS — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving JA7BXS, decoded by SO8OO in southeastern Poland. 790 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 50 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-15.
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 790 FT8 messages attributed to JA7BXS as the transmitting token by decoded message structure across 50 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (97%), followed by 40 m (3%). Several six-hour UTC windows tied for the largest share (100%), 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
Bands
Last attributed message: 2026-09-15 20:10 UTC
Observed FT8 message patterns
- Attributed sample
- 790 messages
- Active dates
- 50 UTC dates
- Estimated median S/N
- -8 dB
- Estimated 10th-90th percentile
- -19 to +1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 182, moderate (-15 to -9 dB) 201, strong (≥ -8 dB) 407.
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 JA7BXS 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 JA7BXS
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 · 7 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,525 km (approx.)
- Last such locator decoded
- 2026-08-23 20:10 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 | JA7BXS S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-15 20:08 | 40m | - / - | EA7BHO | -7 / - | 2 | Partial capture |
| 09-15 20:07 | 40m | -18 / - | DK8ZT | +9 / -13 | 3 | ✓ Closing observed |
| 09-15 20:00 | 40m | -15 / -8 | M1DZI | +4 / -13 | 3 | ✓ Full exchange observed |
| 09-10 11:14 | 40m | - / - | DJ7XB | -8 / - | 9 | Partial capture |
| 09-03 20:20 | 40m | -17 / - | UT0IN | -12 / -12 | 2 | Partial capture |
| 09-03 20:08 | 40m | -17 / - | SP5LST | - / -17 | 2 | ✓ Closing fragment |
| 09-03 20:06 | 40m | -13 / -11 | SV9QWC | -13 / -13 | 5 | ✓ Full exchange observed |
| 08-31 20:33 | 20m | - / -19 | IU5NWT | -3 / - | 3 | ✓ Closing fragment |
| 08-31 20:19 | 20m | - / -2 | 5Z4VJ | -2 / - | 3 | ✓ Closing fragment |
| 08-31 20:06 | 20m | - / - | IU0NAD | -14 / - | 2 | Partial capture |
| 08-30 20:16 | 20m | - / - | PD0DDA | -13 / - | 3 | Partial capture |
| 08-30 20:04 | 20m | - / -16 | MI5ERE | -2 / - | 2 | ✓ Closing fragment |
| 08-30 19:26 | 20m | - / -6 | GM0VMV | +2 / - | 2 | ✓ Closing fragment |
| 08-29 10:13 | 20m | - / - | EA5FIF | -9 / - | 2 | Partial capture |
| 08-27 20:13 | 40m | -8 / - | G6PWS | - / -17 | 2 | Partial capture |
| 08-27 10:23 | 20m | -15 / - | PD9FLX | - / -19 | 2 | Partial capture |
| 08-26 19:54 | 40m | - / - | PA0MUS | -14 / - | 2 | Partial capture |
| 08-26 19:50 | 40m | -10 / -15 | SQ8EFK | -5 / -16 | 5 | ✓ Full exchange observed |
| 08-26 19:49 | 40m | - / - | TA2EE | -16 / - | 4 | Partial capture |
| 08-26 19:47 | 40m | -11 / -7 | HB9HGH | +3 / - | 6 | ✓ Closing observed |
| 08-26 19:45 | 40m | -9 / -5 | EU1TN | -7 / -18 | 6 | ✓ Full exchange observed |
| 08-25 19:44 | 40m | - / - | DL1SRS | -9 / - | 3 | Partial capture |
| 08-25 19:44 | 40m | -14 / -6 | ON4IQ | +17 / -8 | 5 | ✓ Full exchange observed |
| 08-25 19:40 | 40m | -15 / -13 | LB7ZG | +6 / -11 | 8 | ✓ Full exchange observed |
| 08-25 19:38 | 40m | - / - | F6FHZ | -8 / - | 2 | Partial capture |
| 08-25 19:38 | 40m | -9 / -5 | DL7DS | -5 / -16 | 5 | Partial capture |
| 08-25 19:21 | 20m | +1 / - | PA3JWS | - / -17 | 2 | ✓ Closing fragment |
| 08-25 19:18 | 20m | +2 / - | PE1OPL | +3 / -9 | 4 | Partial capture |
| 08-24 20:28 | 20m | - / - | EB5RCA | -17 / - | 2 | Partial capture |
| 08-24 20:19 | 20m | - / -14 | PE8HB | -10 / - | 2 | ✓ Closing fragment |
| 08-24 20:10 | 20m | - / - | DL5SUA | 0 / - | 4 | Partial capture |
| 08-24 20:10 | 20m | - / +5 | D2IM | -2 / - | 2 | ✓ Closing fragment |
| 08-23 20:21 | 20m | -8 / - | EB1FE | - / - | 2 | ✓ Closing fragment |
| 08-23 20:01 | 20m | - / -11 | ON2CB | -6 / - | 4 | ✓ Closing fragment |
| 08-23 19:59 | 20m | -3 / - | PE1NGW | - / -13 | 2 | Partial capture |
| 08-20 20:17 | 20m | -6 / - | DL1R | +4 / -6 | 13 | Partial capture |
| 08-20 20:16 | 20m | - / - | RA3ZH | +8 / - | 2 | Partial capture |
| 08-20 20:15 | 20m | -15 / - | GM0GDD | - / -19 | 3 | ✓ Closing fragment |
| 08-16 20:26 | 20m | - / - | R2DN | -5 / - | 3 | Partial capture |
| 08-16 20:14 | 20m | -22 / -8 | F4NGC | -8 / - | 5 | ✓ Closing observed |
| 08-16 20:08 | 20m | - / -9 | DL2SWA | -2 / - | 2 | ✓ Closing fragment |
| 08-16 20:02 | 20m | - / - | R7RCG | -20 / - | 2 | Partial capture |
| 08-16 19:49 | 20m | -14 / -3 | DH5AZ | -12 / -9 | 6 | ✓ Full exchange observed |
| 08-15 20:09 | 20m | - / - | IU1WKA | -14 / - | 2 | Partial capture |
| 08-15 19:57 | 20m | - / -9 | MM0GTU | -6 / - | 2 | ✓ Closing fragment |
| 08-15 19:52 | 20m | - / -8 | OR1A | -10 / - | 3 | ✓ Closing fragment |
| 08-13 19:55 | 20m | - / - | F4ACR | -17 / - | 3 | Partial capture |
| 08-13 19:50 | 20m | -10 / - | ON4FL | - / -21 | 2 | Partial capture |
| 08-12 19:48 | 80m | - / -10 | SV8TCK | -7 / - | 2 | ✓ Closing fragment |
| 08-12 19:30 | 20m | - / -10 | DD7MK | -6 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 111645 -7 1116 JA7BXS DJ7XB JO52 (x5) 200000 -15 975 M1DZI JA7BXS -13 200045 +4 975 JA7BXS M1DZI R-08 (x2) 200145 -6 973 JA7BXS RC7KK KN85 200730 -16 2093 DK8ZT JA7BXS -13 (x2) 200815 -10 2596 JA7BXS EA7BHO IM87 200915 +9 2417 JA7BXS DK8ZT 73 200945 -4 2596 JA7BXS EA7BHO IM87 201000 -21 2073 DL6ZFG JA7BXS -14
UTC dB Audio Message 200445 -2 1948 JA7BXS MI5ERE R-16 (x2) 201600 -15 1652 JA7BXS PD0DDA JO22 (x3) 195800 -18 898 JA7BXS G6ZIM R-10 200630 -15 2353 JA7BXS IU0NAD JN62 (x2) 201215 -2 2375 JA7BXS MW7VCN -20 201915 -1 2370 JA7BXS 5Z4VJ KI88 (x3) 203315 -7 2025 JA7BXS IU5NWT -19 (x3)
UTC dB Audio Message 202545 -6 1489 JA7BXS YU9YAU KN04 (x3) 201415 -1 468 JA7BXS DL3QC JO32 202045 -2 1442 JA7BXS OE2LMN JN67 (x2) 194630 -11 1622 JA7BXS <...> R-17 194830 -10 370 JA7BXS SV8TCK R-10 (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.
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