HB9SFL — 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 HB9SFL, decoded by SO8OO in southeastern Poland. 3,124 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 57 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-10-20.
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 3,124 FT8 messages attributed to HB9SFL as the transmitting token by decoded message structure across 57 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (54%), followed by 40 m (30%) and 10 m (13%). Most decodes (56%) fell within the six-hour window 10:00-16:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.
Overview
Bands
Last attributed message: 2026-10-20 13:40 UTC
Observed FT8 message patterns
- Attributed sample
- 3,124 messages
- Active dates
- 57 UTC dates
- Estimated median S/N
- -14 dB
- Estimated 10th-90th percentile
- -20 to -6 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,253, moderate (-15 to -9 dB) 1,317, strong (≥ -8 dB) 554.
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 HB9SFL 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 HB9SFL
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
- JN37 · 2,347 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,116 km (approx.)
- Last such locator decoded
- 2026-10-20 13:40 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 | HB9SFL S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-20 13:36 | 40m | -15 / - | DK4BP | -9 / +8 | 2 | ✓ Closing observed |
| 10-20 13:27 | 40m | -16 / +4 | IK6EUH | -14 / - | 4 | ✓ Closing observed |
| 10-20 13:05 | 40m | -15 / - | DL1THB | -10 / -18 | 3 | ✓ Closing observed |
| 10-20 12:50 | 40m | - / -15 | SQ1BVG | -5 / - | 3 | ✓ Closing fragment |
| 10-20 12:45 | 40m | -13 / -6 | DG0JBA | +4 / -2 | 4 | ✓ Full exchange observed |
| 10-20 12:37 | 40m | -14 / - | G6CKK/P | - / -2 | 2 | ✓ Closing fragment |
| 10-20 12:28 | 40m | -13 / - | DL7WSH | -18 / - | 2 | ✓ Closing observed |
| 10-20 12:24 | 40m | -15 / -14 | IK4TVP | -14 / +4 | 3 | ✓ Full exchange observed |
| 10-18 08:10 | 40m | -17 / - | EA5IHI | - / -21 | 3 | Partial capture |
| 10-18 08:01 | 40m | - / -5 | DJ0WO | -2 / - | 3 | ✓ Closing fragment |
| 10-16 19:58 | 60m | -6 / 0 | PA3ADE | -12 / +10 | 5 | ✓ Full exchange observed |
| 10-16 19:55 | 60m | -5 / - | SV1EKI | -14 / - | 4 | ✓ Closing observed |
| 10-16 19:55 | 60m | -2 / -14 | SV1DZB | -12 / - | 9 | ✓ Full exchange observed |
| 10-16 19:53 | 60m | -3 / - | DL6LG | -18 / +1 | 3 | ✓ Closing observed |
| 10-16 19:50 | 60m | -4 / -6 | SP5EXA | +8 / - | 13 | ✓ Full exchange observed |
| 10-16 19:49 | 60m | -4 / - | DB5HA | -18 / - | 6 | ✓ Full exchange observed |
| 10-16 19:48 | 60m | - / - | DL5CG | -12 / - | 7 | Partial capture |
| 10-16 19:47 | 60m | -3 / -7 | OH1LA | -15 / - | 6 | ✓ Full exchange observed |
| 10-16 19:47 | 60m | -9 / - | SP1ZMO | -10 / - | 4 | ✓ Closing observed |
| 10-16 19:45 | 60m | -9 / -1 | EA1IOK | -2 / - | 6 | ✓ Closing observed |
| 10-16 19:43 | 60m | -10 / - | S56GS | - / +1 | 3 | ✓ Closing fragment |
| 10-16 19:43 | 60m | -8 / 0 | DL1MST | -7 / -1 | 6 | ✓ Full exchange observed |
| 10-16 19:41 | 60m | -6 / - | F5TMJ | - / -13 | 3 | ✓ Closing fragment |
| 10-16 19:39 | 60m | -7 / -2 | LZ2VQ | +2 / - | 6 | ✓ Full exchange observed |
| 10-16 19:38 | 60m | +4 / - | IZ4JMA | - / - | 2 | ✓ Closing fragment |
| 10-16 19:36 | 60m | -8 / -10 | PE1NPS | +4 / - | 6 | ✓ Full exchange observed |
| 10-16 19:34 | 60m | -7 / -10 | IZ4JMA | -10 / -12 | 5 | Partial capture |
| 10-16 19:34 | 60m | - / - | LZ2VQ | -5 / - | 2 | Partial capture |
| 10-16 19:33 | 60m | -6 / - | G8DCJ | - / -5 | 3 | ✓ Closing fragment |
| 10-16 19:33 | 60m | -8 / +9 | ME0PKT | -11 / -2 | 3 | ✓ Full exchange observed |
| 10-16 19:30 | 60m | -8 / - | G0AZH | - / -9 | 2 | Partial capture |
| 10-16 19:28 | 60m | -5 / - | SV1EKI | - / - | 2 | Partial capture |
| 10-16 19:24 | 60m | - / - | SV1EKI | -10 / - | 4 | Partial capture |
| 10-16 19:23 | 60m | -4 / - | YO2LEL | - / +1 | 2 | ✓ Closing fragment |
| 10-16 19:23 | 60m | -6 / -3 | DK7UY | +7 / - | 6 | ✓ Full exchange observed |
| 10-16 19:23 | 60m | -8 / - | G0AZH | -5 / -9 | 8 | ✓ Closing observed |
| 10-16 19:23 | 60m | - / - | LZ2VQ | +8 / - | 2 | Partial capture |
| 10-16 19:21 | 60m | -3 / +8 | F6FHZ | -16 / - | 3 | ✓ Full exchange observed |
| 10-16 19:21 | 60m | -4 / - | ON7GB | +13 / - | 7 | ✓ Full exchange observed |
| 10-14 09:46 | 40m | - / - | SP5CJG | -22 / - | 5 | Partial capture |
| 10-14 09:39 | 40m | - / - | SP5CJG | -16 / - | 6 | Partial capture |
| 10-14 08:48 | 40m | - / - | I3LID | -5 / - | 3 | ✓ Closing fragment |
| 10-10 15:09 | 40m | - / 0 | DL4DW | +9 / - | 3 | ✓ Closing fragment |
| 10-10 15:05 | 40m | -13 / - | M3WHB | - / -5 | 5 | Partial capture |
| 10-10 15:01 | 40m | -6 / - | DL2JFL | - / -2 | 6 | ✓ Closing fragment |
| 10-10 14:55 | 40m | -12 / -13 | DK8HC/P | -12 / -11 | 2 | Partial capture |
| 10-10 14:53 | 40m | -6 / +8 | SQ1MNG | -3 / -6 | 5 | ✓ Full exchange observed |
| 10-10 14:52 | 40m | -12 / - | IU2CBS | -6 / - | 4 | ✓ Full exchange observed |
| 10-10 14:51 | 40m | - / - | IU2THY | +3 / - | 3 | Partial capture |
| 10-10 14:48 | 40m | -6 / - | G4IDK | - / -13 | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 132545 -14 2436 CQ HB9SFL JN37 132730 -15 2437 HB9SFL IK6EUH R+04 132745 -16 2436 IK6EUH HB9SFL RR73 (x2) 132830 -12 2437 HB9SFL IK6EUH 73 132845 -15 2435 CQ HB9SFL JN37 (x5) 133615 -15 2436 DK4BP HB9SFL +08 133700 -9 1316 HB9SFL DK4BP 73 133815 -15 2435 CQ HB9SFL JN37 (x3)
UTC dB Audio Message 195630 -12 947 HB9SFL SV1EKI 73 195630 -16 1843 HB9SFL SV1DZB KM18 (x2) 195715 -1 2426 SV1DZB HB9SFL +21 195730 -6 1843 HB9SFL SV1DZB R-14 195745 -2 2427 SV1DZB HB9SFL RR73 195800 -5 1843 HB9SFL SV1DZB 73 195815 +1 2426 CQ HB9SFL JN37 195845 -3 2427 PA3ADE HB9SFL +10 195900 -12 2427 HB9SFL PA3ADE R+00 195915 -6 2426 PA3ADE HB9SFL RR73 195930 -12 2427 HB9SFL PA3ADE 73 195945 -8 2426 PA3ADE HB9SFL 73 200015 -10 2427 CQ HB9SFL JN37 200030 -12 2190 HB9SFL IW2CAK JN45
UTC dB Audio Message 193400 +4 1716 HB9SFL DL9KM R-13 193415 -14 2588 DL9KM HB9SFL RR73 193430 +0 1716 HB9SFL DL9KM 73 193600 +10 1450 HB9SFL UR5WBK KN19 (x2) 193800 +6 2588 HB9SFL LY4MP KO05 (x5) 194300 -15 422 HB9SFL DL3XRZ JN59 (x5)
UTC dB Audio Message 081015 -10 2579 CQ HB9SFL JN37 081100 -6 1512 HB9SFL OH2ZZ R-03 081115 -12 2614 OH2ZZ HB9SFL RR73 081145 -11 2614 UZ5DM HB9SFL +08 081200 -13 2408 HB9SFL UZ5DM R-05 (x2) 081315 +4 2614 UZ5DM HB9SFL 73 081345 +6 2614 CQ HB9SFL JN37 (x2) 081445 +5 2614 TF5B HB9SFL +02 (x3) 081615 +2 2614 CQ HB9SFL JN37 (x3)
UTC dB Audio Message 082945 -18 2321 CQ HB9SFL JN37 (x4) 083245 -14 2322 OK6PL HB9SFL +10 (x3) 083415 -17 2322 CQ HB9SFL JN37 (x3) 083815 -17 2321 F5NLY HB9SFL +07 084045 -17 2321 CQ HB9SFL JN37 (x4)
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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