SP5BB — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SP5BB, decoded by SO8OO in southeastern Poland. 228 FT8 messages attributed to this token as transmitter, on 80m, 40m, 10m, across 11 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-08-20.
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 228 FT8 messages attributed to SP5BB as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (50%), followed by 40 m (34%) and 10 m (16%). Most decodes (64%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (81%); the estimated median was +7.2 dB.
Overview
Bands
Last attributed message: 2026-08-20 19:15 UTC
Observed FT8 message patterns
- Attributed sample
- 228 messages
- Active dates
- 11 UTC dates
- Estimated median S/N
- +7.2 dB
- Estimated 10th-90th percentile
- -13 to +20 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 27, strong (≥ -8 dB) 185.
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 SP5BB 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 SP5BB
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
- KO01 · 99 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 182 km (approx.)
- Last such locator decoded
- 2026-08-20 19:14 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 | SP5BB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-03 18:33 | 80m | - / - | DK7UY | +5 / - | 3 | Partial capture |
| 08-20 19:15 | 40m | +14 / +7 | DL1EDR | +7 / -2 | 5 | ✓ Full exchange observed |
| 08-20 19:12 | 40m | +20 / -5 | UT3RO | +6 / -1 | 8 | ✓ Full exchange observed |
| 08-20 19:11 | 40m | +16 / - | SP5ETF | - / -19 | 2 | ✓ Closing fragment |
| 08-20 19:02 | 40m | +12 / - | SQ7SE | -10 / -3 | 4 | ✓ Full exchange observed |
| 08-20 14:44 | 20m | - / +5 | UT4QM | +1 / - | 3 | ✓ Closing fragment |
| 08-20 13:38 | 40m | -6 / - | IU3OVL | - / -13 | 2 | Partial capture |
| 08-20 13:36 | 40m | -15 / -4 | HA1ORA | -15 / -7 | 6 | ✓ Full exchange observed |
| 08-20 13:15 | 40m | -18 / - | SP5ZTM | - / -7 | 2 | Partial capture |
| 08-20 13:13 | 40m | -12 / -1 | SQ7BCB | -1 / +3 | 4 | ✓ Full exchange observed |
| 08-20 13:12 | 40m | -16 / 0 | DL1FAM | -16 / -2 | 7 | ✓ Full exchange observed |
| 08-18 16:47 | 10m | - / - | F6FDY | -16 / - | 2 | Partial capture |
| 08-13 19:10 | 80m | +20 / -6 | SV9MBH | -8 / -10 | 3 | ✓ Full exchange observed |
| 08-13 19:03 | 80m | +16 / - | SQ7SE | +14 / +4 | 6 | ✓ Full exchange observed |
| 08-13 11:23 | 10m | - / - | IZ0EGA | -20 / - | 4 | Partial capture |
| 08-13 11:14 | 10m | - / - | IK4LZH | +10 / - | 4 | Partial capture |
| 08-13 11:10 | 10m | - / - | IK4LZH | +11 / - | 3 | Partial capture |
| 08-13 11:07 | 10m | - / +10 | F1PBZ | 0 / - | 3 | Partial capture |
| 08-12 15:48 | 10m | - / +10 | DF7EE | -12 / - | 4 | Partial capture |
| 08-12 15:48 | 10m | - / -4 | PD2WL | 0 / - | 2 | ✓ Closing fragment |
| 08-11 09:28 | 10m | - / - | IZ4JMA | -22 / - | 2 | ✓ Closing fragment |
| 08-11 05:12 | 10m | - / - | SV2CLJ | -3 / - | 4 | Partial capture |
| 08-10 02:23 | 80m | - / +2 | DO1OAS | -6 / - | 7 | Partial capture |
| 08-10 02:21 | 80m | - / - | DL1UDO | -2 / - | 2 | Partial capture |
| 08-10 02:18 | 80m | +16 / - | VP2MAA | - / -15 | 4 | ✓ Closing fragment |
| 08-10 02:16 | 80m | +18 / -2 | DH2YBG | +7 / -2 | 7 | ✓ Full exchange observed |
| 08-10 02:11 | 80m | - / 0 | <...> | +7 / - | 2 | Partial capture |
| 08-10 02:11 | 80m | - / - | DO5PY | +1 / - | 3 | Partial capture |
| 08-09 12:36 | 10m | - / +3 | F6BNX | -18 / - | 2 | Partial capture |
| 08-06 02:56 | 80m | - / - | IK4LZH | +3 / - | 4 | Partial capture |
| 08-06 02:52 | 80m | - / - | IK4LZH | +8 / - | 4 | Partial capture |
| 08-06 02:50 | 80m | +1 / -15 | RU3GF | -21 / -4 | 3 | ✓ Full exchange observed |
| 08-06 02:49 | 80m | - / +5 | DO1OAS | -8 / - | 3 | Partial capture |
| 08-06 02:46 | 80m | - / - | DK7UY | -14 / - | 2 | Partial capture |
| 08-06 02:44 | 80m | - / - | IK4LZH | +3 / - | 3 | Partial capture |
| 08-06 02:43 | 80m | - / - | DL9ATW | -12 / - | 2 | Partial capture |
| 08-06 02:43 | 80m | +10 / - | K4YT | -13 / -4 | 7 | Partial capture |
| 08-06 02:41 | 80m | - / - | DK7UY | 0 / - | 2 | Partial capture |
| 08-06 02:41 | 80m | +4 / +3 | SQ6ELK | 0 / -3 | 4 | ✓ Full exchange observed |
| 08-06 02:41 | 80m | +12 / -24 | UA3RCW | -24 / -11 | 3 | ✓ Full exchange observed |
| 08-06 02:40 | 80m | - / -5 | F1PBZ | +8 / - | 2 | Partial capture |
| 08-06 02:40 | 80m | - / - | IK4LZH | +1 / - | 4 | Partial capture |
| 08-06 02:37 | 80m | - / - | DL9ATW | -8 / - | 4 | Partial capture |
| 08-06 02:36 | 80m | - / 0 | DO1OAS | -6 / - | 7 | Partial capture |
| 08-06 02:36 | 80m | +11 / +9 | RW3XB | -14 / -2 | 5 | ✓ Full exchange observed |
| 08-06 02:29 | 80m | - / - | IK4LZH | +4 / - | 3 | Partial capture |
| 08-06 02:27 | 80m | +8 / +8 | SP5EXA | +13 / -2 | 5 | ✓ Full exchange observed |
| 08-06 02:24 | 80m | +8 / - | Z62NS | - / +5 | 2 | Partial capture |
| 08-05 07:48 | 10m | - / - | SV2HXV | -2 / - | 3 | ✓ Closing fragment |
| 08-05 07:43 | 10m | - / +4 | SV8DCW | -17 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 190500 +12 635 SP5BB SQ7SE R+23 (x2) 190545 +14 2449 SQ7SE SP5BB RR73 190600 +15 635 SP5BB SQ7SE 73 190845 +21 2449 CQ SP5BB KO01 (x4) 191045 +21 2449 SV9MBH SP5BB -10 191100 -8 1432 SP5BB SV9MBH R-06 191115 +19 2449 SV9MBH SP5BB RR73 191215 +18 2449 CQ SP5BB KO01 183330 +4 2749 SP5BB DK7UY JO44 (x3)
UTC dB Audio Message 191215 +17 2931 SP5ETF SP5BB 73 191230 +5 2937 SP5BB UT3RO KO60 (x2) 191315 +22 2931 UT3RO SP5BB -01 191330 +14 2937 SP5BB UT3RO KO60 191345 +20 2931 UT3RO SP5BB +00 191400 +5 2937 SP5BB UT3RO R-05 191415 +18 2931 UT3RO SP5BB RR73 191430 +1 2937 SP5BB UT3RO 73 191445 +17 2931 CQ SP5BB KO01 191500 +2 2931 SP5BB DL1EDR JO41 191515 +18 2931 DL1EDR SP5BB -02 191530 +11 2932 SP5BB DL1EDR R+07 191545 +10 2931 DL1EDR SP5BB RR73 191600 +9 2932 SP5BB DL1EDR 73
UTC dB Audio Message 124930 -8 2040 SP5BB IU8RFW JN70 153600 +16 2749 SP5BB LZ1BT R-06 (x2) 161830 -22 2009 SP5BB GW3TYI R-04 (x2) 163100 -20 1350 SP5BB MM7RGM RR73 163100 -11 2127 SP5BB RZ4FWA LO23 (x2) 163930 -13 2471 SP5BB PE1NPS JO22 144400 +1 3040 SP5BB UT4QM R+05 (x3)
UTC dB Audio Message 110815 +1 2487 SP5BB F1PBZ +10 (x2) 111015 +8 490 SP5BB IK4LZH JN54 (x7) 112330 -22 1350 SP5BB IZ0EGA JN61 (x4) 164700 -16 1134 SP5BB F6FDY JN33 (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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