R4FBZ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving R4FBZ, decoded by SO8OO in southeastern Poland. 15 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-09-05.
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 15 FT8 messages attributed to R4FBZ as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (73%), followed by 80 m (27%). In this small sample, the estimated median decoder S/N was -10 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-05 17:15 UTC
Observed FT8 message patterns
- Attributed sample
- 15 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- -10 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 10, strong (≥ -8 dB) 3.
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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with R4FBZ in decoded directed-looking exchanges:
Most frequent locator attributed to R4FBZ
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
- LO33 · 2 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,771 km (approx.)
- Last such locator decoded
- 2026-09-05 16:25 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 | R4FBZ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-05 17:15 | 80m | -13 / -9 | RA3GK | +4 / - | 3 | ✓ Closing observed |
| 09-05 16:52 | 40m | -9 / - | UB3FBD | - / -1 | 2 | ✓ Closing fragment |
| 09-05 16:49 | 40m | -10 / +6 | RO3Z | -1 / - | 3 | ✓ Closing observed |
| 09-05 16:34 | 80m | -16 / - | RA4FP | -2 / +4 | 3 | ✓ Closing observed |
| 09-05 16:32 | 80m | - / - | R3KLE | -18 / - | 3 | Partial capture |
| 09-05 16:31 | 80m | - / -21 | R3LCW | -1 / - | 3 | ✓ Closing fragment |
| 09-05 16:29 | 80m | - / -3 | UB4FGK | -10 / - | 2 | ✓ Closing fragment |
| 09-05 15:45 | 40m | -8 / - | RA3PGR | - / +2 | 2 | ✓ Closing fragment |
| 09-05 15:40 | 40m | -10 / - | R3ICU | - / -13 | 3 | ✓ Closing fragment |
| 09-05 15:38 | 40m | -11 / - | RL1I/P | - / -6 | 3 | ✓ Closing fragment |
| 09-05 15:31 | 80m | - / -3 | RX6DA | -12 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 162930 -12 1338 R4FBZ UB4FGK 73 163100 +2 2268 R4FBZ R3LCW KO64 (x3) 163200 -19 2057 R4FBZ R3KLE KO91 163200 +13 2661 R4FBZ R1943OD -11 163230 -19 2058 R4FBZ R3KLE KO91 (x2) 163445 -17 1076 RA4FP R4FBZ R+04 163500 -2 668 R4FBZ RA4FP RR73 163515 -14 1076 RA4FP R4FBZ 73 170015 -12 809 R4FBZ R9DT -12 171500 +2 1703 R4FBZ RA3GK -09 (x2) 171545 -13 937 RA3GK R4FBZ 73
UTC dB Audio Message 153815 -10 1192 RL1I/P R4FBZ LO33 (x3) 154045 -10 1192 R3ICU R4FBZ -13 (x3) 154545 -7 917 RA3PGR R4FBZ R+02 (x2) 164930 -1 2154 R4FBZ RO3Z +06 (x2) 165015 -10 1717 RO3Z R4FBZ 73 165130 -12 841 R4FBZ RA0SCZ R-10 165245 -7 1717 UB3FBD R4FBZ -01 (x2)
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