ZL1HX — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving ZL1HX, decoded by SO8OO in southeastern Poland. 17 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-06-10.
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 17 FT8 messages attributed to ZL1HX as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -19 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 17 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- -19 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 17, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 0.
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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with ZL1HX in decoded directed-looking exchanges:
Most frequent locator attributed to ZL1HX
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
- RF63 · 4 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 17,271 km (approx.)
- Last such locator decoded
- 2026-06-10 03:58 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 | ZL1HX S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-12 04:48 | 20m | - / - | YT3MD | -18 / - | 3 | Partial capture |
| 08-12 04:26 | 20m | - / - | SV2HXV | -22 / - | 2 | Partial capture |
| 08-12 04:26 | 20m | - / - | YU5BU | -16 / - | 2 | ✓ Closing fragment |
| 08-12 04:25 | 20m | - / - | LZ1BT | -13 / - | 8 | Partial capture |
| 08-12 04:23 | 20m | - / - | LZ2VM | 0 / - | 4 | Partial capture |
| 08-12 04:19 | 20m | - / - | LZ1BT | -13 / - | 5 | Partial capture |
| 08-12 04:15 | 20m | - / - | UA3ZUX | -12 / - | 2 | Partial capture |
| 08-12 04:13 | 20m | - / - | RL6MT | -12 / - | 2 | Partial capture |
| 08-12 04:12 | 20m | - / - | LZ1BT | -10 / - | 2 | Partial capture |
| 08-12 04:10 | 20m | - / - | OH7KB | -11 / - | 3 | Partial capture |
| 08-10 04:12 | 20m | - / - | OD5KU | -1 / - | 4 | Partial capture |
| 08-02 04:40 | 20m | - / - | SV1EKI | -3 / - | 5 | Partial capture |
| 07-27 05:17 | 20m | - / - | F4LNM | -11 / - | 2 | Partial capture |
| 07-27 05:14 | 20m | - / - | DL3MIB | 0 / - | 3 | Partial capture |
| 07-27 05:13 | 20m | - / -13 | 9A5JU | -3 / - | 3 | Partial capture |
| 07-27 05:13 | 20m | - / -8 | S54E | -15 / - | 2 | Partial capture |
| 07-27 05:11 | 20m | - / - | I1FLC | -10 / - | 2 | ✓ Closing fragment |
| 07-27 05:11 | 20m | - / - | IK4LZH | -9 / - | 3 | Partial capture |
| 07-21 04:51 | 20m | - / - | OD5KU | 0 / - | 4 | Partial capture |
| 07-21 04:45 | 20m | - / - | LX1TI | -10 / - | 2 | Partial capture |
| 07-21 04:25 | 20m | - / - | A71DA | -14 / - | 8 | Partial capture |
| 07-21 02:13 | 20m | - / -6 | IK4LZH | -2 / - | 3 | Partial capture |
| 07-20 05:32 | 20m | - / -1 | IU8UOQ | -18 / - | 4 | Partial capture |
| 07-20 05:22 | 20m | - / - | OD5KU | -4 / - | 8 | Partial capture |
| 07-15 10:54 | 20m | - / -16 | GM1DSK | -6 / - | 2 | Partial capture |
| 07-13 10:23 | 20m | - / - | ON8BB | -20 / - | 3 | Partial capture |
| 07-13 09:58 | 20m | - / - | ON8BB | -18 / - | 2 | Partial capture |
| 06-28 04:30 | 20m | - / -22 | A71AT | -7 / - | 3 | Partial capture |
| 06-27 03:19 | 20m | - / - | RN3GJ | -17 / - | 2 | Partial capture |
| 06-27 03:15 | 20m | - / - | RN3GJ | -18 / - | 2 | Partial capture |
| 06-27 02:27 | 20m | - / - | RA6OB | -8 / - | 3 | Partial capture |
| 06-27 02:16 | 20m | - / - | RA6OB | -7 / - | 4 | Partial capture |
| 06-27 02:14 | 20m | - / -18 | US5HL | +2 / - | 2 | Partial capture |
| 06-25 03:14 | 20m | - / - | OD5KU | -10 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 042615 -15 2083 ZL1HX YU5BU KN03 042615 -22 1679 ZL1HX SV2HXV KN10 042615 -14 2264 ZL1HX LZ1BT KN12 042645 -22 1679 ZL1HX SV2HXV KN10 042645 -13 2265 ZL1HX LZ1BT KN12 042715 +3 3006 ZL1HX LZ2VM KN23 042715 -15 2266 ZL1HX LZ1BT KN12 042745 -17 2083 ZL1HX YU5BU 73 042745 -16 2266 ZL1HX LZ1BT KN12 (x4) 044845 -20 1679 ZL1HX YT3MD KN04 (x3)
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