R4QB — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving R4QB, decoded by SO8OO in southeastern Poland. 21 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-08-30.
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 21 FT8 messages attributed to R4QB as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -2 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 21 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- -2 dB
- Estimated 10th-90th percentile
- -7 to +3 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 2, strong (≥ -8 dB) 19.
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 R4QB in decoded directed-looking exchanges:
Most frequent locator attributed to R4QB
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
- LO45 · 9 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,920 km (approx.)
- Last such locator decoded
- 2026-08-30 07:01 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 | R4QB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-30 07:00 | 20m | -3 / -12 | RZ6CO | -11 / - | 3 | ✓ Closing observed |
| 08-30 06:59 | 20m | 0 / -8 | EA3BIC | +4 / -5 | 5 | ✓ Full exchange observed |
| 08-30 06:56 | 20m | -7 / -17 | TA4SSK | -2 / -14 | 3 | Partial capture |
| 08-30 06:54 | 20m | +4 / -8 | F4LNM | +6 / +2 | 10 | ✓ Full exchange observed |
| 08-30 06:53 | 20m | -2 / -14 | YO4NF | +10 / +6 | 3 | ✓ Full exchange observed |
| 08-30 06:50 | 20m | 0 / - | EW1MN | - / - | 2 | ✓ Closing fragment |
| 08-30 06:48 | 20m | 0 / 0 | F4EDB | -1 / +1 | 5 | ✓ Full exchange observed |
| 08-29 19:19 | 20m | - / -6 | SV2AEL | 0 / - | 3 | ✓ Closing fragment |
| 08-29 18:58 | 20m | - / - | EA3AAY | 0 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 065700 +6 1483 R4QB F4LNM R-08 (x2) 065745 +5 1022 F4LNM R4QB RR73 065800 +4 1483 R4QB F4LNM 73 065845 +4 1022 CQ R4QB LO45 065900 -10 738 R4QB IW5ALZ JN53 065930 +1 948 R4QB EA3BIC JN11 065945 +0 1021 EA3BIC R4QB -05 070000 +5 948 R4QB EA3BIC R-08 070015 +0 1021 EA3BIC R4QB RR73 070030 -10 1777 R4QB RZ6CO -12 070030 +7 948 R4QB EA3BIC 73 070100 -12 1778 R4QB RZ6CO RR73 070115 -3 1021 RZ6CO R4QB 73 070145 -2 1021 CQ R4QB LO45
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