HB9TWU — 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 HB9TWU, decoded by SO8OO in southeastern Poland. 3,338 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 76 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-11-05.
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 3,338 FT8 messages attributed to HB9TWU as the transmitting token by decoded message structure across 76 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (73%), followed by 40 m (22%) and 80 m (4%). Most decodes (95%) fell within the six-hour window 03:00-09:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7.4 dB.
Overview
Bands
Last attributed message: 2026-11-05 07:33 UTC
Observed FT8 message patterns
- Attributed sample
- 3,338 messages
- Active dates
- 76 UTC dates
- Estimated median S/N
- -7.4 dB
- Estimated 10th-90th percentile
- -17 to +3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 488, moderate (-15 to -9 dB) 996, strong (≥ -8 dB) 1,854.
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 HB9TWU 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 HB9TWU
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
- JN36 · 1,894 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,158 km (approx.)
- Last such locator decoded
- 2026-11-05 07:32 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 | HB9TWU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-05 07:33 | 40m | -16 / +6 | OK1VPO | -3 / -11 | 4 | ✓ Full exchange observed |
| 11-05 07:31 | 40m | -14 / - | PD1DBL | - / -9 | 2 | ✓ Closing fragment |
| 11-05 07:31 | 40m | - / - | YL3ATJ | -11 / - | 2 | Partial capture |
| 11-05 07:28 | 40m | -14 / - | CT1BFP | - / -3 | 2 | ✓ Closing fragment |
| 11-05 07:27 | 40m | -6 / - | F3CJ | -24 / -13 | 3 | ✓ Closing observed |
| 11-04 07:59 | 40m | - / - | HB9ELE | +7 / - | 3 | Partial capture |
| 11-04 07:58 | 40m | -18 / - | F4NKT | - / -10 | 2 | ✓ Closing fragment |
| 11-04 07:55 | 40m | -16 / -9 | DL1HBG | 0 / -7 | 6 | ✓ Full exchange observed |
| 11-04 07:54 | 40m | -14 / - | OE6OCG | -8 / -1 | 4 | ✓ Closing observed |
| 11-04 07:50 | 40m | -12 / - | OS4K | - / -14 | 2 | ✓ Closing fragment |
| 11-04 07:49 | 40m | -17 / - | EA5GGU | - / -9 | 3 | ✓ Closing fragment |
| 11-04 07:48 | 40m | -16 / - | DL3RAJ | -5 / -3 | 10 | ✓ Closing observed |
| 11-04 07:45 | 40m | -19 / -1 | DK3HV | -16 / +6 | 5 | ✓ Full exchange observed |
| 11-04 05:43 | 60m | -22 / -11 | SQ7LQT | -4 / -7 | 4 | ✓ Full exchange observed |
| 11-04 05:41 | 60m | - / -13 | IZ8NON | -4 / - | 4 | Partial capture |
| 11-04 05:40 | 60m | -17 / -1 | OM1CI | +6 / +8 | 6 | ✓ Full exchange observed |
| 11-04 05:39 | 60m | -18 / -18 | EA6Y | +4 / +4 | 5 | ✓ Full exchange observed |
| 11-04 05:28 | 80m | -4 / 0 | S56A | -4 / -4 | 5 | ✓ Full exchange observed |
| 11-04 05:24 | 80m | -13 / -5 | T77RN | -11 / -24 | 5 | ✓ Full exchange observed |
| 11-04 05:24 | 80m | -12 / -9 | DO2MOG | -14 / - | 3 | ✓ Closing observed |
| 11-03 17:18 | 40m | - / 0 | SV5BYP | -8 / - | 3 | Partial capture |
| 11-03 17:14 | 40m | -14 / -6 | YL3ATJ | -15 / -21 | 2 | Partial capture |
| 11-03 17:13 | 40m | -18 / - | DC6MT | -15 / -5 | 3 | ✓ Closing observed |
| 11-03 17:11 | 40m | -17 / -10 | RW3QW | -6 / -2 | 4 | ✓ Full exchange observed |
| 11-03 17:08 | 40m | - / - | YL3ATJ | -13 / - | 4 | Partial capture |
| 11-03 17:06 | 40m | -16 / - | M8MFU | - / -6 | 2 | ✓ Closing fragment |
| 11-02 07:50 | 40m | - / - | DL1API | -3 / - | 3 | Partial capture |
| 11-02 07:49 | 40m | -18 / - | PG0T | - / -4 | 2 | ✓ Closing fragment |
| 11-02 07:47 | 40m | - / -6 | DM3XD | -19 / - | 2 | ✓ Closing fragment |
| 11-02 07:46 | 40m | -17 / - | MM3JFM | - / -24 | 2 | Partial capture |
| 11-02 07:44 | 40m | - / - | DG9PC | -14 / - | 2 | ✓ Closing fragment |
| 11-02 07:41 | 40m | -12 / -12 | OM5BS | -5 / - | 4 | ✓ Closing observed |
| 11-02 07:19 | 40m | -15 / - | GJ0KYZ | - / -1 | 2 | ✓ Closing fragment |
| 11-02 07:19 | 40m | - / - | DL6UCK | -7 / - | 5 | Partial capture |
| 11-02 07:14 | 80m | -21 / +1 | DL5MRK | -14 / -18 | 4 | ✓ Full exchange observed |
| 11-02 07:11 | 80m | -16 / +8 | DF2KD | -17 / -2 | 5 | ✓ Full exchange observed |
| 11-02 07:11 | 80m | - / - | DO5HCS | -22 / - | 2 | Partial capture |
| 11-02 07:08 | 80m | -19 / -8 | OK2CNI | +3 / -21 | 5 | ✓ Full exchange observed |
| 11-02 07:08 | 80m | -14 / - | EC3A | - / -16 | 2 | ✓ Closing fragment |
| 11-02 07:06 | 80m | -17 / -7 | DK8CX | +1 / -15 | 5 | ✓ Full exchange observed |
| 11-01 11:04 | 40m | - / - | OH1TEV | -10 / - | 3 | Partial capture |
| 11-01 10:51 | 40m | -17 / - | F1PBZ | - / -1 | 2 | ✓ Closing fragment |
| 11-01 10:49 | 40m | -16 / - | DL0KS | -16 / - | 3 | ✓ Full exchange observed |
| 11-01 10:45 | 40m | -14 / - | DC7MA | -21 / -7 | 6 | ✓ Full exchange observed |
| 11-01 10:44 | 40m | -16 / - | PD1LVK | - / -14 | 2 | ✓ Closing fragment |
| 11-01 10:40 | 40m | -15 / - | M7MJW | - / -6 | 2 | ✓ Closing fragment |
| 11-01 10:37 | 40m | -14 / -3 | PD2FS | -17 / -13 | 2 | Partial capture |
| 11-01 10:34 | 40m | -16 / - | EA2EED | - / -14 | 2 | ✓ Closing fragment |
| 11-01 10:33 | 40m | -19 / +6 | IU2THY | -1 / +7 | 5 | ✓ Full exchange observed |
| 11-01 10:28 | 40m | -17 / -9 | S53AK | 0 / -4 | 6 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 072830 -13 1236 CT1BFP HB9TWU -03 (x2) 072930 -15 1237 CQ HB9TWU JN36 (x3) 073115 -11 1236 HB9TWU YL3ATJ KO27 073115 -16 1292 PD1DBL HB9TWU -09 073145 -11 1236 HB9TWU YL3ATJ KO27 073145 -12 1292 PD1DBL HB9TWU RR73 073215 -15 1292 CQ HB9TWU JN36 (x2) 073300 -4 2109 HB9TWU OK1VPO JO60 073315 -16 1292 OK1VPO HB9TWU -11 073330 -2 2109 HB9TWU OK1VPO R+06 (x2)
UTC dB Audio Message 081745 -16 1098 SP9JP HB9TWU RR73 081845 -20 1098 HA8HA HB9TWU RR73 083630 -14 770 HB9TWU 5R8IC +06 084815 -16 1197 HB9TWU UB3BCT R-17 085815 -20 2288 HB9TWU 5Z4RS -10
UTC dB Audio Message 054115 -18 1571 CQ HB9TWU JN36 054130 +6 2263 HB9TWU OM1CI JN88 054130 -3 1177 HB9TWU IZ8NON R-13 054145 -15 1571 OM1CI HB9TWU +08 054200 +6 2263 HB9TWU OM1CI R-01 054200 -3 1177 HB9TWU IZ8NON R-13 054215 -19 1571 OM1CI HB9TWU RR73 054230 +6 2263 HB9TWU OM1CI 73 054230 -6 1177 HB9TWU IZ8NON JN71 054245 -13 1571 CQ HB9TWU JN36 054300 -3 2483 HB9TWU SQ7LQT -11 054315 -20 1571 SQ7LQT HB9TWU R-07 054330 -4 2482 HB9TWU SQ7LQT RR73 054345 -23 1571 SQ7LQT HB9TWU 73 054415 -17 1571 K1QD HB9TWU JN36
UTC dB Audio Message 052500 -10 2349 HB9TWU T77RN -05 052515 -17 2349 T77RN HB9TWU R-24 052530 -12 2349 HB9TWU T77RN RR73 052545 -11 2349 T77RN HB9TWU 73 052615 -13 2349 CQ HB9TWU JN36 (x5) 052845 -7 2349 HB9TWU S56A JN76 052900 -8 2349 S56A HB9TWU -04 052915 -4 2349 HB9TWU S56A R+00 052930 -1 2349 S56A HB9TWU RR73 052945 -2 2349 HB9TWU S56A 73 053000 -6 2349 CQ HB9TWU JN36
UTC dB Audio Message 070245 +9 1844 UA4POO HB9TWU 73 070315 +11 1844 CQ HB9TWU JN36 (x3) 070430 +1 1880 HB9TWU HB9FNN JN37 070445 +4 1844 CQ HB9TWU JN36 (x5) 070700 +1 1730 HB9TWU UA3RRT LO03 070715 +5 1844 UA3RRT HB9TWU -06 070730 +1 1730 HB9TWU UA3RRT R-03 070745 +14 1844 UA3RRT HB9TWU RR73 070800 -2 1730 HB9TWU UA3RRT 73
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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