RA5BB — 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 RA5BB, decoded by SO8OO in southeastern Poland. 94 FT8 messages attributed to this token as transmitter, on 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-29 and 2026-10-09.
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 94 FT8 messages attributed to RA5BB as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -7 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 94 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -7 dB
- Estimated 10th-90th percentile
- -14 to 0 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 34, strong (≥ -8 dB) 55.
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 RA5BB in decoded directed-looking exchanges:
Most frequent locator attributed to RA5BB
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
- KO85 · 62 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,193 km (approx.)
- Last such locator decoded
- 2026-10-09 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 | RA5BB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-09 18:02 | 40m | -12 / - | CN8NS | - / - | 2 | Partial capture |
| 10-09 17:40 | 40m | - / - | EU1FQ | -1 / - | 3 | Partial capture |
| 10-09 17:38 | 40m | -6 / - | R6JAE | - / -17 | 6 | ✓ Closing fragment |
| 10-09 17:25 | 40m | -10 / - | RA8AF | -8 / -3 | 2 | ✓ Closing observed |
| 10-09 17:23 | 40m | -10 / +10 | RV3LO | +11 / - | 2 | Partial capture |
| 10-09 17:22 | 40m | -10 / - | EW4DX | -2 / -9 | 5 | ✓ Closing observed |
| 10-09 17:17 | 40m | -12 / - | EC1ALT | -8 / -14 | 6 | ✓ Closing observed |
| 10-09 17:15 | 60m | - / - | 9A4ZM | +4 / - | 2 | Partial capture |
| 10-09 17:14 | 40m | -7 / - | BG0FQU | - / - | 3 | Partial capture |
| 10-09 17:12 | 40m | -5 / -5 | OH3OJ | 0 / - | 3 | ✓ Closing observed |
| 10-09 17:11 | 40m | - / -6 | R6AEB | +2 / - | 2 | ✓ Closing fragment |
| 10-09 17:08 | 40m | -3 / -5 | RC6OZ | -1 / -1 | 5 | ✓ Full exchange observed |
| 10-09 17:07 | 40m | -2 / - | R6AEB | - / - | 2 | Partial capture |
| 10-09 16:56 | 40m | -15 / - | RT3K/P | - / - | 2 | Partial capture |
| 10-09 16:55 | 40m | -16 / -6 | IQ0AAX | -14 / - | 4 | Partial capture |
| 10-09 16:53 | 40m | -14 / -13 | HB9ELE | +12 / -4 | 4 | Partial capture |
| 10-09 16:50 | 40m | -14 / -8 | YO3VPT | -10 / -19 | 4 | ✓ Full exchange observed |
| 10-09 16:48 | 40m | -10 / - | YO2LFP | - / -19 | 3 | ✓ Closing fragment |
| 10-09 16:47 | 40m | -11 / - | M9YDD | - / - | 3 | Partial capture |
| 10-09 16:46 | 40m | -11 / - | R6JAE | - / - | 2 | Partial capture |
| 10-09 16:44 | 40m | -10 / - | BI6AN | - / - | 3 | Partial capture |
| 10-09 16:42 | 40m | -4 / - | EU7FBB | - / - | 4 | Partial capture |
| 10-09 16:35 | 40m | -9 / -11 | YT3IN | -10 / - | 4 | ✓ Closing observed |
| 10-09 16:33 | 40m | -8 / - | UA2FFD | - / - | 3 | Partial capture |
| 10-09 16:25 | 40m | -9 / -10 | F4GHN | -1 / -13 | 10 | ✓ Full exchange observed |
| 10-09 16:22 | 40m | -8 / - | F4GHN | - / - | 2 | Partial capture |
| 10-09 16:20 | 40m | -15 / -16 | DF3IS | +6 / - | 3 | ✓ Closing observed |
| 10-09 16:18 | 40m | -8 / - | BG2ATH | - / - | 4 | Partial capture |
| 10-09 16:16 | 40m | -16 / - | IV3XPP | - / - | 3 | Partial capture |
| 08-29 20:35 | 40m | -4 / - | IR7MGGC | - / -7 | 3 | Partial capture |
| 08-29 20:32 | 40m | -2 / - | A61OK | - / - | 2 | Partial capture |
| 08-29 20:30 | 40m | -1 / -12 | ON2BCB | -13 / -20 | 5 | ✓ Full exchange observed |
| 08-29 20:28 | 40m | -1 / - | YT2FA | - / - | 4 | Partial capture |
| 08-29 20:25 | 40m | +2 / - | SN4K | - / -11 | 3 | ✓ Closing fragment |
| 08-29 20:22 | 40m | 0 / - | <...> | - / - | 2 | Partial capture |
| 08-29 20:21 | 40m | - / -13 | PE1NAO | -7 / - | 3 | Partial capture |
| 08-29 20:20 | 40m | 0 / - | UI6O | - / - | 2 | Partial capture |
| 08-29 20:17 | 40m | -1 / -16 | VU2MSA | -17 / -19 | 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 172545 -10 2656 RA8AF RA5BB R-03 172600 -8 842 RA5BB RA8AF RR73 173800 -5 2656 R6JAE RA5BB -17 (x6) 174045 -4 2657 RA5BB EU1FQ KO33 (x3) 180200 -12 2657 CN8NS RA5BB KO85 (x3) 181300 -19 2122 EC1COU RA5BB KO85
UTC dB Audio Message 171500 +7 2467 RA5BB 9A4ZM JN86 (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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