HB9CYN — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving HB9CYN, decoded by SO8OO in southeastern Poland. 447 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 13 UTC dates in the available aggregate history. Observed between 2026-07-24 and 2026-09-17.
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 447 FT8 messages attributed to HB9CYN as the transmitting token by decoded message structure across 13 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (46%), followed by 80 m (44%) and 10 m (4%). Most decodes (85%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (66%); the estimated median was -4.7 dB.
Overview
Bands
Last attributed message: 2026-09-17 18:53 UTC
Observed FT8 message patterns
- Attributed sample
- 447 messages
- Active dates
- 13 UTC dates
- Estimated median S/N
- -4.7 dB
- Estimated 10th-90th percentile
- -16 to +6 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 48, moderate (-15 to -9 dB) 104, strong (≥ -8 dB) 295.
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 HB9CYN 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 HB9CYN
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 · 352 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,158 km (approx.)
- Last such locator decoded
- 2026-09-17 18:53 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 | HB9CYN S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-17 18:53 | 80m | - / - | DL6LG | -14 / - | 2 | Partial capture |
| 09-17 18:51 | 80m | -11 / - | DL2RN | -3 / +2 | 3 | ✓ Closing observed |
| 09-17 18:49 | 80m | -7 / - | DL5JMN | +1 / -13 | 3 | ✓ Closing observed |
| 09-17 18:48 | 80m | -8 / - | IZ4AIF | -13 / -6 | 3 | ✓ Closing observed |
| 09-17 18:44 | 80m | - / -11 | OK1DBE | 0 / - | 2 | ✓ Closing fragment |
| 09-17 18:40 | 80m | -4 / -1 | PA0LDE | -13 / -8 | 3 | ✓ Full exchange observed |
| 09-17 18:34 | 80m | -5 / - | M0KHR | -19 / -16 | 4 | ✓ Closing observed |
| 09-17 18:32 | 80m | -6 / - | EA5TS | -22 / -24 | 3 | ✓ Closing observed |
| 09-17 18:29 | 80m | -6 / - | EA1CWR | - / -25 | 2 | ✓ Closing fragment |
| 09-17 18:28 | 80m | -6 / - | OZ0A | - / -12 | 2 | ✓ Closing fragment |
| 09-17 18:25 | 80m | -4 / - | CT2GQA | - / -24 | 2 | ✓ Closing fragment |
| 09-17 18:24 | 80m | -5 / -4 | SP6FME | +15 / -11 | 5 | ✓ Full exchange observed |
| 09-17 18:22 | 80m | -2 / -12 | UR3LM | +15 / -10 | 5 | ✓ Full exchange observed |
| 09-17 18:18 | 80m | -5 / -11 | R7DX | +7 / -8 | 6 | ✓ Full exchange observed |
| 09-17 18:18 | 80m | -4 / -11 | SP9TDA | +7 / -14 | 5 | ✓ Full exchange observed |
| 09-17 18:15 | 80m | -9 / - | DO6JO | - / -23 | 2 | ✓ Closing fragment |
| 09-17 18:14 | 80m | -10 / +3 | ON7IR | -5 / -4 | 5 | ✓ Full exchange observed |
| 09-17 18:11 | 80m | -7 / -1 | DL9KM | -11 / -16 | 4 | ✓ Full exchange observed |
| 09-17 18:10 | 80m | -13 / - | DD2MON | - / -12 | 2 | ✓ Closing fragment |
| 09-15 19:35 | 80m | - / -14 | HB3YPJ | -11 / - | 3 | Partial capture |
| 09-15 19:28 | 80m | -12 / - | JE6KYA | - / - | 3 | Partial capture |
| 09-15 18:49 | 80m | - / - | DB2LP | -15 / - | 3 | Partial capture |
| 09-15 18:19 | 80m | - / - | DL9KM | -2 / - | 5 | Partial capture |
| 09-15 18:18 | 80m | - / -4 | OE5ABL | +3 / - | 9 | Partial capture |
| 09-14 21:50 | 40m | +5 / -11 | ON1BH | -1 / -6 | 5 | ✓ Full exchange observed |
| 09-14 21:49 | 40m | +6 / -8 | PD0LBY | -9 / -9 | 7 | ✓ Full exchange observed |
| 09-14 21:49 | 40m | 0 / -3 | IZ8PPI | -20 / -9 | 3 | ✓ Full exchange observed |
| 09-14 21:45 | 40m | +4 / - | V51WH | - / -20 | 8 | ✓ Closing fragment |
| 09-14 21:12 | 40m | +5 / - | V51WH | - / -20 | 52 | Partial capture |
| 09-14 20:58 | 40m | -2 / - | TN8GD | - / -24 | 4 | ✓ Closing fragment |
| 09-11 15:54 | 80m | -12 / +1 | DO2KMB | -10 / - | 4 | ✓ Closing observed |
| 09-11 15:49 | 80m | -15 / - | DL4MFC | -4 / -7 | 4 | ✓ Full exchange observed |
| 09-11 15:48 | 80m | - / +2 | DA0O | -14 / - | 3 | ✓ Closing fragment |
| 09-11 15:44 | 80m | -17 / -4 | DK1RWR | -24 / -17 | 3 | ✓ Full exchange observed |
| 09-11 15:36 | 80m | -15 / - | I2BPP | - / -7 | 2 | ✓ Closing fragment |
| 09-09 21:53 | 80m | - / -10 | GX4RAF/P | -19 / - | 2 | ✓ Closing fragment |
| 09-09 21:28 | 40m | +2 / - | TN8GD | - / - | 2 | Partial capture |
| 09-09 21:18 | 40m | +10 / - | TN8GD | - / - | 2 | Partial capture |
| 09-09 21:13 | 40m | +2 / - | V51WH | - / - | 4 | Partial capture |
| 09-09 20:50 | 80m | -7 / - | 5Z4VJ | - / - | 8 | Partial capture |
| 09-09 20:36 | 80m | -14 / - | 5Z4VJ | - / - | 3 | Partial capture |
| 09-09 20:24 | 80m | -11 / - | 5Z4VJ | - / - | 3 | Partial capture |
| 09-09 20:21 | 80m | -19 / -7 | IU6JMK | -4 / -4 | 3 | ✓ Full exchange observed |
| 09-09 20:20 | 80m | - / - | UR5VLC | -2 / - | 2 | Partial capture |
| 09-09 20:17 | 80m | - / +3 | ON4MAP | -20 / - | 2 | Partial capture |
| 09-09 20:10 | 80m | - / +1 | DF5RA | -12 / - | 2 | Partial capture |
| 09-09 20:07 | 80m | - / -25 | RK6OQ | +3 / - | 4 | ✓ Closing fragment |
| 09-09 20:06 | 80m | -10 / - | GU0SUP | - / -11 | 2 | ✓ Closing fragment |
| 09-09 20:02 | 80m | - / - | R7BI | 0 / - | 2 | Partial capture |
| 09-09 20:00 | 80m | -16 / -14 | EI5JL | -4 / -18 | 4 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 184845 -8 2164 IZ4AIF HB9CYN RR73 184900 -13 2164 HB9CYN IZ4AIF 73 184915 -9 2164 CQ HB9CYN JN36 184930 +1 637 HB9CYN DL5JMN JO60 184945 -8 2164 CQ HB9CYN JN36 185015 -11 2164 DL5JMN HB9CYN -13 (x2) 185115 -9 2164 CQ HB9CYN JN36 185145 -14 2164 DL2RN HB9CYN +02 (x2) 185230 -3 2219 HB9CYN DL2RN 73 185245 -12 2164 CQ HB9CYN JN36 (x2) 185330 -16 2904 HB9CYN DL6LG JO60 (x2)
UTC dB Audio Message 214930 -4 1534 HB9CYN PD0LBY JO22 214945 +7 929 IZ8PPI HB9CYN R-09 215000 -15 1534 HB9CYN PD0LBY JO22 215015 -6 929 IZ8PPI HB9CYN 73 215030 -16 1534 HB9CYN PD0LBY JO22 215030 +2 2502 HB9CYN ON1BH -11 215045 +6 929 PD0LBY HB9CYN -09 215100 -6 1534 HB9CYN PD0LBY R-08 215100 -3 2502 HB9CYN ON1BH -11 215115 +6 929 PD0LBY HB9CYN RR73 215130 -6 1534 HB9CYN PD0LBY 73 215130 -3 2502 HB9CYN ON1BH -11 215145 +5 930 ON1BH HB9CYN R-06 215200 +0 2502 HB9CYN ON1BH RR73 215315 +9 930 HF7X HB9CYN RR73
UTC dB Audio Message 125145 -10 466 XU7O HB9CYN JN36 (x13) 081100 -17 1772 HB9CYN EX7CQ -25 (x2)
UTC dB Audio Message 194030 -15 1484 HB9CYN PA3FR JO33 (x3) 191530 -3 1295 HB9CYN OK1DXR JO60 (x6)
UTC dB Audio Message 183045 -9 2552 OJ0YL HB9CYN JN36 (x3) 183730 -6 1807 HB9CYN RR73; DL1YEG <...> -06 184600 -1 2486 ER3UA HB9CYN JN36 184615 -2 2137 HB9CYN ER3UA -03 184630 -1 2486 ER3UA HB9CYN R-16 184645 -3 2137 HB9CYN ER3UA RR73 184700 -1 2486 ER3UA HB9CYN 73 184745 -6 1130 HB9CYN DK7UY JO44 (x2)
UTC dB Audio Message 165745 -10 2357 C91RU HB9CYN JN36 (x3) 170300 -7 2270 UK7AL HB9CYN JN36 (x12)
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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