SP5HWB — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SP5HWB, decoded by SO8OO in southeastern Poland. 1,018 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 24 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-09-19.
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 1,018 FT8 messages attributed to SP5HWB as the transmitting token by decoded message structure across 24 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (77%), followed by 80 m (18%) and 60 m (4%). Most decodes (58%) fell within the six-hour window 14:00-20:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (61%); the estimated median was -6 dB.
Overview
Bands
Last attributed message: 2026-09-19 17:11 UTC
Observed FT8 message patterns
- Attributed sample
- 1,018 messages
- Active dates
- 24 UTC dates
- Estimated median S/N
- -6 dB
- Estimated 10th-90th percentile
- -16.2 to +11 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 122, moderate (-15 to -9 dB) 270, strong (≥ -8 dB) 626.
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 SP5HWB 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 SP5HWB
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
- JO92 · 346 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 345 km (approx.)
- Last such locator decoded
- 2026-09-13 11:37 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 | SP5HWB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-19 17:10 | 80m | +7 / - | LZ936BA | - / -2 | 2 | Partial capture |
| 09-13 11:37 | 40m | +6 / - | KH8WW | - / - | 2 | Partial capture |
| 09-07 17:50 | 10m | - / - | CT7AUT | -13 / - | 4 | Partial capture |
| 08-18 19:05 | 40m | -6 / +5 | SQ5OMY | -14 / -7 | 4 | ✓ Full exchange observed |
| 08-18 18:46 | 40m | -1 / - | ZL1VAH | - / -16 | 3 | ✓ Closing fragment |
| 08-18 18:43 | 40m | -13 / - | SP5ROM | - / -5 | 3 | ✓ Closing fragment |
| 08-16 14:03 | 40m | - / - | SP4LVG | -12 / - | 5 | Partial capture |
| 07-28 05:58 | 20m | - / - | IZ4JMA | -14 / - | 2 | Partial capture |
| 07-28 05:52 | 20m | - / -15 | PD0WL | -20 / - | 2 | Partial capture |
| 07-28 05:38 | 20m | - / - | EA3ISZ | -17 / - | 3 | Partial capture |
| 07-27 08:32 | 40m | - / - | SP9TEX | -17 / - | 7 | Partial capture |
| 07-27 08:32 | 40m | -20 / - | SQ5ROB | -17 / +4 | 4 | ✓ Full exchange observed |
| 07-27 08:29 | 40m | -4 / - | SQ8KMP | - / +2 | 2 | ✓ Closing fragment |
| 07-27 08:26 | 40m | -11 / - | SO5A | - / 0 | 2 | ✓ Closing fragment |
| 07-27 08:23 | 40m | -12 / - | SP4LVG | -8 / +3 | 5 | ✓ Full exchange observed |
| 07-27 08:22 | 40m | -14 / - | M7KSV | - / -12 | 2 | Partial capture |
| 07-27 05:10 | 80m | 0 / +6 | SP9MOC | +5 / +3 | 6 | ✓ Full exchange observed |
| 07-27 05:09 | 80m | +12 / -17 | IQ4JO | -9 / -10 | 5 | Partial capture |
| 07-27 05:09 | 80m | +18 / - | SP4LVG | +16 / -20 | 5 | ✓ Full exchange observed |
| 07-26 19:17 | 80m | - / - | SP9TEX | +14 / - | 12 | Partial capture |
| 07-26 18:58 | 80m | -8 / - | UR5AMJ | +1 / -14 | 3 | ✓ Full exchange observed |
| 07-26 18:58 | 80m | +3 / +3 | SP7SZJ | +11 / +2 | 8 | ✓ Full exchange observed |
| 07-26 18:56 | 80m | +3 / -4 | SQ5TA | +13 / -7 | 6 | ✓ Full exchange observed |
| 07-26 18:55 | 80m | +10 / -10 | SP7VLU | +15 / 0 | 3 | ✓ Full exchange observed |
| 07-26 18:54 | 80m | +5 / - | SP7TJ | +16 / - | 4 | ✓ Closing observed |
| 07-26 18:53 | 80m | +2 / -2 | DK3TNA | -8 / -2 | 7 | Partial capture |
| 07-26 18:52 | 80m | -2 / - | SP4BP | -5 / -1 | 3 | ✓ Full exchange observed |
| 07-26 18:49 | 80m | +13 / - | SP5DFK | -14 / -9 | 4 | ✓ Closing observed |
| 07-26 18:48 | 80m | +13 / -19 | R2EN | -14 / -12 | 4 | ✓ Full exchange observed |
| 07-26 18:48 | 80m | - / - | SO8DAN | +21 / - | 3 | Partial capture |
| 07-26 18:45 | 80m | +17 / -8 | R2EA | -2 / - | 3 | ✓ Closing observed |
| 07-26 18:45 | 80m | +17 / - | SO5A | +9 / -8 | 5 | ✓ Closing observed |
| 07-26 18:45 | 80m | - / -1 | SP7SZJ | +10 / - | 8 | Partial capture |
| 07-26 18:43 | 80m | +11 / - | SO8DAN | +14 / -7 | 6 | Partial capture |
| 07-26 18:43 | 80m | - / - | SP9WSS | +8 / - | 4 | Partial capture |
| 07-26 18:41 | 80m | - / - | SQ8KMP | +15 / - | 33 | Partial capture |
| 07-26 18:41 | 80m | +17 / -9 | YO6TIM | +2 / -6 | 15 | Partial capture |
| 07-26 18:41 | 80m | +1 / +3 | SP7KGO | +15 / +2 | 22 | Partial capture |
| 07-26 18:40 | 80m | - / - | SP7VLU | +15 / - | 2 | Partial capture |
| 07-26 18:38 | 80m | +17 / - | SP8XXX | +14 / - | 4 | ✓ Closing observed |
| 07-26 18:37 | 80m | - / - | SP9WSS | +15 / - | 2 | Partial capture |
| 07-26 18:37 | 80m | +12 / +8 | SQ3SKN | +9 / 0 | 8 | Partial capture |
| 07-26 18:37 | 80m | +17 / +1 | SP9HAX | +11 / 0 | 7 | ✓ Full exchange observed |
| 07-26 18:37 | 80m | +8 / +6 | SQ7FBP | +12 / +2 | 5 | ✓ Full exchange observed |
| 07-26 18:34 | 80m | +5 / - | SP6TRK | +6 / -4 | 6 | ✓ Full exchange observed |
| 07-26 18:34 | 80m | +7 / - | SP4LVG | 0 / +2 | 2 | Partial capture |
| 07-26 18:34 | 80m | - / - | SP7VLU | +14 / - | 2 | Partial capture |
| 07-26 18:34 | 80m | +13 / -8 | SQ9BC | +21 / 0 | 7 | ✓ Full exchange observed |
| 07-26 18:33 | 80m | +13 / - | HF5A | - / -1 | 3 | ✓ Closing fragment |
| 07-26 08:16 | 20m | - / - | MM7CEH | -15 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 051130 -15 2482 SP5HWB IQ4JO R-17 051145 -1 1309 SP9MOC SP5HWB +03 051200 +6 1309 SP5HWB SP9MOC R+06 051200 -12 2482 SP5HWB IQ4JO R-17 051215 +2 1309 SP9MOC SP5HWB RR73 051230 +9 1309 SP5HWB SP9MOC 73 051245 +6 1309 CQ SP5HWB JO92 (x3) 051400 -1 2482 SP5HWB IQ4JO JN63 051445 +7 1309 CQ SP5HWB JO92 (x3) 171015 +1 257 LZ936BA SP5HWB -02 (x2)
UTC dB Audio Message 184415 -13 2176 SP5ROM SP5HWB -05 (x2) 184600 -2 2784 ZL1VAH SP5HWB -16 (x3) 184830 -16 1787 SP7SZJ SP5HWB 73 184845 -7 2539 SP5HWB R2EA/P -11 190500 -5 1012 SQ5OMY SP5HWB -07 190515 -14 1012 SP5HWB SQ5OMY R+05 190530 -6 1013 SQ5OMY SP5HWB RR73 190545 -20 1847 SP5HWB YO4LUP KN43 190545 -14 1012 SP5HWB SQ5OMY 73 190545 -6 2576 SP5HWB R2EA/P -11 113700 +6 987 KH8WW SP5HWB JO92 (x2)
UTC dB Audio Message 164815 +0 2338 SP5HWB ON5RZ JO21 (x2) 170415 -19 1461 SP5HWB DK4RH JO31 (x5) 171815 -17 1184 SP5HWB DF2JK JO30 (x2) 103900 -17 2427 SP5HWB RD7O 73 104330 +5 392 SP5HWB RN6MA +15 175030 -12 1529 SP5HWB CT7AUT IM67 (x4)
UTC dB Audio Message 075930 +1 2639 SP5HWB DJ1TU R-03 080230 -13 1478 SP5HWB DK3TNA JO62 (x2) 080930 -13 991 SP5HWB DG4FFF JO40 081600 -16 2324 SP5HWB MM7CEH IO85 (x2) 053845 -18 1837 SP5HWB EA3ISZ JN01 (x3) 055215 -22 1779 SP5HWB PD0WL JO21 (x2) 055845 -12 1039 SP5HWB IZ4JMA JN54 (x3) 060445 -20 1532 SP5HWB R4FDW -06
UTC dB Audio Message 193930 -8 1509 SP5HWB SP2GRP -11 193930 -7 1084 SP5HWB F5RAV R-16 194000 -11 1509 SP5HWB SP2GRP -11 194000 -6 1084 SP5HWB F5RAV 73 194015 +4 1729 SP1DL SP5HWB RR73 194045 +2 1729 CQ SP5HWB JO92 (x2) 194130 -6 1378 SP5HWB SP2GRP JO94 194145 -1 1729 CQ SP5HWB JO92 194200 -9 1558 SP5HWB SP2GRP JO94 194215 +4 1729 CQ SP5HWB JO92 194230 -12 1557 SP5HWB SP2GRP JO94 194330 -2 333 SP5HWB LZ9HS KN32 (x3)
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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