HA5KN — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving HA5KN, decoded by SO8OO in southeastern Poland. 1,517 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 66 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-15.
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 1,517 FT8 messages attributed to HA5KN as the transmitting token by decoded message structure across 66 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (85%), followed by 20 m (14%) and 80 m (1%). Most decodes (67%) 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 (80%); the estimated median was -4 dB.
Overview
Bands
Last attributed message: 2026-09-15 08:52 UTC
Observed FT8 message patterns
- Attributed sample
- 1,517 messages
- Active dates
- 66 UTC dates
- Estimated median S/N
- -4 dB
- Estimated 10th-90th percentile
- -10 to +6 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 303, strong (≥ -8 dB) 1,212.
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 HA5KN 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 HA5KN
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
- JN97 · 1,262 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 340 km (approx.)
- Last such locator decoded
- 2026-09-15 08:52 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 | HA5KN S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-15 08:47 | 40m | +7 / - | PD1WD | - / - | 10 | Partial capture |
| 09-15 08:43 | 40m | +3 / - | YU4FQN | - / -12 | 3 | ✓ Closing fragment |
| 09-15 08:38 | 40m | +4 / -13 | F4BNZ | -24 / -3 | 8 | ✓ Full exchange observed |
| 09-15 08:35 | 40m | +8 / - | DB1IUA | - / - | 5 | Partial capture |
| 09-15 07:40 | 40m | -6 / - | II9IAGM | - / -1 | 2 | Partial capture |
| 09-15 06:09 | 40m | - / -11 | F5OIH | -5 / - | 2 | ✓ Closing fragment |
| 09-12 18:44 | 40m | -8 / - | II0CDS | -9 / -20 | 11 | ✓ Closing observed |
| 09-12 17:59 | 40m | -4 / - | DL1NB | - / -9 | 4 | ✓ Closing fragment |
| 09-12 17:56 | 40m | -3 / - | F1UNR | - / - | 7 | Partial capture |
| 09-12 07:47 | 40m | +2 / - | MW9LQA | - / - | 2 | Partial capture |
| 09-11 07:40 | 40m | -7 / - | F1UNR | - / - | 7 | Partial capture |
| 09-11 07:33 | 40m | -6 / - | OZ/OO4O | - / - | 2 | Partial capture |
| 09-10 08:35 | 40m | - / - | DL9KM | -8 / - | 7 | Partial capture |
| 09-10 07:39 | 40m | - / +2 | YO9ADN | -12 / - | 2 | Partial capture |
| 09-10 06:28 | 40m | - / 0 | LY2MM | -6 / - | 2 | ✓ Closing fragment |
| 09-09 18:02 | 40m | +2 / - | EA5CAL | - / - | 10 | Partial capture |
| 09-09 17:55 | 40m | 0 / - | OH7MFO | - / - | 15 | Partial capture |
| 09-09 17:52 | 40m | -1 / - | ZL1RPC/P | - / - | 5 | Partial capture |
| 09-08 05:53 | 40m | - / -14 | HB9TWU | -10 / - | 2 | ✓ Closing fragment |
| 09-08 05:45 | 40m | - / +7 | PD1RGW | +2 / - | 2 | ✓ Closing fragment |
| 09-03 06:24 | 40m | +5 / - | F4IEW | - / - | 18 | Partial capture |
| 09-03 06:11 | 40m | 0 / - | YU5DR | - / -3 | 3 | ✓ Closing fragment |
| 09-03 06:07 | 40m | 0 / - | II7MGBA | - / +2 | 2 | Partial capture |
| 09-03 06:04 | 40m | +2 / -7 | SP8WB | -8 / -5 | 2 | Partial capture |
| 09-03 05:59 | 40m | -5 / - | <...> | - / +4 | 4 | Partial capture |
| 09-03 05:57 | 40m | -2 / - | EA3IWJ | - / - | 4 | Partial capture |
| 09-03 05:55 | 40m | -2 / - | PA3DTN | - / - | 3 | Partial capture |
| 08-31 16:40 | 40m | - / -9 | 4X1UF | -7 / - | 18 | Partial capture |
| 08-31 12:22 | 20m | - / +2 | PA4AV | +2 / - | 2 | ✓ Closing fragment |
| 08-31 10:49 | 20m | -5 / - | F4CQS | - / - | 9 | Partial capture |
| 08-31 08:36 | 20m | - / -14 | EA7R | 0 / - | 2 | ✓ Closing fragment |
| 08-31 08:21 | 20m | - / -16 | PD0AAZ | +7 / - | 2 | ✓ Closing fragment |
| 08-30 15:24 | 40m | -1 / - | S56LKP | - / -6 | 7 | ✓ Closing fragment |
| 08-30 15:20 | 40m | -1 / - | OZ2ADC | - / - | 3 | Partial capture |
| 08-30 15:04 | 40m | +8 / - | <...> | - / - | 18 | Partial capture |
| 08-30 14:31 | 40m | +4 / - | SP2ZST | - / - | 10 | Partial capture |
| 08-30 14:28 | 40m | +6 / - | DH8KAM | - / - | 4 | Partial capture |
| 08-30 14:22 | 40m | -1 / - | PD2MAC | - / -22 | 8 | ✓ Closing fragment |
| 08-30 14:11 | 20m | - / -13 | M8NDF | -13 / - | 3 | ✓ Closing fragment |
| 08-30 13:55 | 20m | - / - | PA2AMJ | -4 / - | 3 | Partial capture |
| 08-30 06:30 | 20m | - / -4 | G4YTU | -14 / - | 4 | Partial capture |
| 08-29 17:06 | 40m | -7 / - | R5BM/M | - / - | 3 | Partial capture |
| 08-29 17:04 | 40m | +5 / - | RA3VMK/P | - / - | 5 | Partial capture |
| 08-29 17:00 | 40m | +8 / - | RA3VMK/P | - / - | 4 | Partial capture |
| 08-28 16:30 | 20m | - / +3 | GW5JJV | +4 / - | 2 | ✓ Closing fragment |
| 08-28 05:41 | 40m | - / - | DL6UCK | -3 / - | 2 | Partial capture |
| 08-26 18:36 | 40m | +2 / - | II7MGML | - / - | 19 | Partial capture |
| 08-26 06:03 | 40m | - / - | DL9KM | 0 / - | 3 | Partial capture |
| 08-26 06:01 | 40m | 0 / - | <...> | - / - | 2 | Partial capture |
| 08-25 16:39 | 20m | - / +6 | M9SGT | +4 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 084100 +3 2658 F4BNZ HA5KN R-03 (x2) 084345 +3 2658 YU4FQN HA5KN JN97 (x3) 084730 +4 2658 PD1WD HA5KN JN97 (x10)
UTC dB Audio Message 082215 +5 2808 HA5KN PD0AAZ RR73 083600 +1 2442 HA5KN EA7R -14 (x2) 104900 -1 2696 F4CQS HA5KN JN97 (x9) 122200 +4 2250 HA5KN PA4AV +02 (x2) 191100 -15 1290 HA5KN DF8DR -06
UTC dB Audio Message 070630 -1 2610 UT4VL HA5KN JN97 (x5) 070845 -18 1784 HA5KN RN1CW KO59 (x3) 071115 -2 2607 HA5KN UR5EPZ 73 095145 -13 1712 HA5KN DN9DSP +00 (x2) 065630 -12 918 HA5KN DO2PY -16 (x2) 070100 -12 2618 HA5KN <...> -09 105600 -11 295 HA5KN PG4T -11
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.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee