OH3BRJ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving OH3BRJ, decoded by SO8OO in southeastern Poland. 73 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-20.
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 73 FT8 messages attributed to OH3BRJ 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 (49%), followed by 40 m (49%) and 20 m (1%). Several six-hour UTC windows tied for the largest share (52%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.
Overview
Bands
Last attributed message: 2026-09-20 18:13 UTC
Observed FT8 message patterns
- Attributed sample
- 73 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- -14 dB
- Estimated 10th-90th percentile
- -22 to -4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 34, moderate (-15 to -9 dB) 16, strong (≥ -8 dB) 23.
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 OH3BRJ 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 OH3BRJ
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
- KP11 · 50 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,288 km (approx.)
- Last such locator decoded
- 2026-09-20 18:13 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 | OH3BRJ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-12 05:35 | 40m | -20 / - | J38LD | - / - | 4 | Partial capture |
| 09-12 05:30 | 40m | -19 / - | J38LD | - / - | 5 | Partial capture |
| 09-12 05:14 | 40m | -21 / - | D44TWO | - / -11 | 5 | Partial capture |
| 09-12 05:07 | 40m | -22 / - | D44TWO | - / - | 6 | Partial capture |
| 09-02 17:57 | 80m | -9 / - | RI1FJL | - / -9 | 23 | Partial capture |
| 08-22 20:15 | 40m | -12 / - | TN8GD | - / - | 2 | Partial capture |
| 08-16 15:39 | 20m | - / - | DK3HV | -2 / - | 2 | ✓ Closing fragment |
| 07-29 14:04 | 20m | - / - | PE9JAN | -14 / - | 3 | Partial capture |
| 07-27 06:00 | 20m | - / 0 | LA6VQ | -18 / - | 2 | ✓ Closing fragment |
| 07-25 19:27 | 80m | -5 / +4 | LY1DX | +13 / +10 | 6 | ✓ Full exchange observed |
| 07-25 19:25 | 80m | -3 / -5 | OH6JD | -1 / - | 5 | ✓ Full exchange observed |
| 07-25 19:24 | 80m | -2 / -14 | YO5EEE | -2 / -9 | 6 | ✓ Full exchange observed |
| 07-25 19:22 | 80m | -13 / -8 | EW7EL | +4 / +10 | 4 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 180345 -1 1545 RI1FJL OH3BRJ KP11 (x13) 181245 -5 2164 RI1FJZ OH3BRJ KP11 181315 -4 2163 IQ0AAI OH3BRJ KP11
UTC dB Audio Message 051545 -21 2172 D44TWO OH3BRJ KP11 (x3) 052030 -22 1705 J38LD OH3BRJ KP11 052130 -19 1705 J38DX OH3BRJ -24 053030 -21 1705 J38LD OH3BRJ KP11 (x10)
UTC dB Audio Message 060030 -20 2031 OH3BRJ LA6VQ +00 (x2) 140415 -18 1624 OH3BRJ PE9JAN JO22 (x3) 194430 -13 1224 OH3BRJ R4FDW RR73 054830 -7 2982 OK1ZJK OH3BRJ R+00 153945 -4 2365 OH3BRJ DK3HV JO31 (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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