HB9TVS — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving HB9TVS, decoded by SO8OO in southeastern Poland. 633 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 11 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-08-25.
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 633 FT8 messages attributed to HB9TVS as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (74%), followed by 20 m (26%). The busiest six-hour window was 08:00-14:00 UTC, containing 49% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (63%); the estimated median was -2 dB.
Overview
Bands
Last attributed message: 2026-08-25 20:48 UTC
Observed FT8 message patterns
- Attributed sample
- 633 messages
- Active dates
- 11 UTC dates
- Estimated median S/N
- -2 dB
- Estimated 10th-90th percentile
- -18.7 to +7 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 120, moderate (-15 to -9 dB) 114, strong (≥ -8 dB) 399.
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 HB9TVS 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 HB9TVS
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 · 406 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,158 km (approx.)
- Last such locator decoded
- 2026-08-25 20:47 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 | HB9TVS S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-25 20:48 | 20m | -4 / - | N1XP | - / -15 | 2 | ✓ Closing fragment |
| 08-25 20:45 | 20m | +9 / - | YO3NSS | - / -5 | 2 | ✓ Closing fragment |
| 08-25 20:44 | 20m | +12 / - | K3ATA | - / -15 | 3 | ✓ Closing fragment |
| 08-25 20:37 | 20m | +9 / - | AB2RR | - / -17 | 12 | Partial capture |
| 08-25 20:32 | 20m | +6 / - | IT9JLP | -6 / -17 | 4 | ✓ Closing observed |
| 08-25 20:30 | 20m | +5 / - | HK3AB | - / -18 | 2 | ✓ Closing fragment |
| 08-25 20:28 | 20m | +6 / -14 | LA1SNA | -15 / -20 | 5 | ✓ Full exchange observed |
| 08-25 20:26 | 20m | +2 / - | SP9KSK | - / +2 | 2 | ✓ Closing fragment |
| 08-25 20:19 | 20m | +6 / - | EA4CPM | -6 / - | 6 | Partial capture |
| 08-25 20:16 | 20m | +4 / - | DL1R | - / -9 | 2 | Partial capture |
| 08-25 19:55 | 20m | +10 / - | F4VTR | - / -15 | 8 | Partial capture |
| 08-25 19:51 | 20m | +5 / - | PY4LH | - / -5 | 2 | ✓ Closing fragment |
| 08-25 19:49 | 20m | +11 / +4 | EA7FU | -8 / - | 4 | ✓ Full exchange observed |
| 08-19 20:08 | 20m | -12 / - | OK1AYM | - / -2 | 2 | ✓ Closing fragment |
| 08-19 19:53 | 20m | - / - | F4ACR | +12 / - | 3 | Partial capture |
| 08-11 21:04 | 10m | - / -13 | IZ2WMD | -14 / - | 2 | ✓ Closing fragment |
| 08-11 20:44 | 10m | - / -14 | F1PBZ | +4 / - | 3 | ✓ Closing fragment |
| 08-06 21:08 | 20m | -14 / - | N1WRN | - / -7 | 2 | ✓ Closing fragment |
| 08-06 21:05 | 20m | -16 / - | JT1BZ | - / - | 2 | Partial capture |
| 08-06 20:51 | 20m | -16 / - | JA9JAI | - / -14 | 4 | ✓ Closing fragment |
| 08-06 20:49 | 20m | -18 / - | JG1GEO | - / -15 | 2 | ✓ Closing fragment |
| 08-06 20:47 | 20m | -12 / - | DB2LP | - / -12 | 2 | Partial capture |
| 08-06 20:37 | 20m | -14 / - | ZL1VAH | - / -19 | 2 | ✓ Closing fragment |
| 08-06 20:31 | 20m | -19 / - | DL6UM | - / -12 | 2 | ✓ Closing fragment |
| 08-06 20:27 | 20m | -14 / - | JA3EQC | - / -17 | 2 | ✓ Closing fragment |
| 08-06 20:22 | 20m | -14 / - | DL3NA | - / -15 | 2 | Partial capture |
| 08-06 20:20 | 20m | -18 / - | JR3IAO | - / -9 | 3 | ✓ Closing fragment |
| 08-06 20:18 | 20m | -14 / - | BH4ECL | - / -14 | 3 | ✓ Closing fragment |
| 08-06 20:11 | 20m | -14 / - | BH8NNU | - / -10 | 2 | ✓ Closing fragment |
| 08-06 20:10 | 20m | -15 / - | BI4XDT | -15 / - | 2 | ✓ Closing observed |
| 08-06 20:01 | 20m | -12 / - | CT1BFP | -19 / - | 2 | ✓ Closing observed |
| 08-06 19:59 | 20m | -12 / - | JH3UHG | - / -14 | 2 | ✓ Closing fragment |
| 07-12 04:37 | 20m | - / - | RA3ZDU | -19 / - | 3 | Partial capture |
| 06-30 13:14 | 10m | - / - | DK8HC | -12 / - | 2 | Partial capture |
| 06-30 13:13 | 10m | -20 / - | EA4ZG | - / -10 | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 204145 +11 2058 AB2RR HB9TVS -17 (x3) 204315 +8 2058 CQ HB9TVS JN36 (x2) 204415 +15 3058 K3ATA HB9TVS -15 (x2) 204515 +10 2058 YO3NSS HB9TVS -05 (x2) 204615 +10 2058 K3ATA HB9TVS RR73 204645 +12 2058 CQ HB9TVS JN36 (x3) 204815 -1 2058 N1XP HB9TVS -15 (x2)
UTC dB Audio Message 131245 -22 1758 DL9DWR HB9TVS RR73 131315 -21 1758 CQ HB9TVS JN36 131345 -21 1758 EA4ZG HB9TVS -10 131400 -11 631 HB9TVS DK8HC JO42 131415 -19 1758 EA4ZG HB9TVS RR73 131430 -12 631 HB9TVS DK8HC JO42 131445 -23 1758 CQ HB9TVS JN36 a1 204400 +1 2685 HB9TVS F1PBZ -14 (x3) 210400 -13 2464 HB9TVS IZ2WMD R-13 (x2) 121215 -17 2309 CQ HB9TVS JN36 (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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