HZ1YJ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving HZ1YJ, decoded by SO8OO in southeastern Poland. 56 FT8 messages attributed to this token as transmitter, on 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-08-09 and 2026-08-12.
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 56 FT8 messages attributed to HZ1YJ as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Most decodes (57%) fell within the six-hour window 14:00-20:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (75%); the estimated median was -21 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 56 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -21 dB
- Estimated 10th-90th percentile
- -24 to -13 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 42, moderate (-15 to -9 dB) 14, 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.
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with HZ1YJ 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 HZ1YJ
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
- LL26 · 19 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 3,273 km (approx.)
- Last such locator decoded
- 2026-08-12 17:28 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 | HZ1YJ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-14 13:48 | 20m | - / - | PD2HYN | -12 / - | 2 | Partial capture |
| 08-14 10:01 | 20m | - / -8 | DH9DR | -2 / - | 5 | ✓ Closing fragment |
| 08-14 10:01 | 20m | - / -16 | UR9QQ | -12 / - | 3 | ✓ Closing fragment |
| 08-14 09:50 | 20m | - / -15 | UR9QQ | -17 / - | 3 | Partial capture |
| 08-14 09:40 | 20m | - / -17 | PA1PA | -15 / - | 4 | ✓ Closing fragment |
| 08-14 09:04 | 20m | - / - | IU5TUG | -22 / - | 2 | ✓ Closing fragment |
| 08-14 09:02 | 20m | - / -13 | YO6MP | -10 / - | 2 | ✓ Closing fragment |
| 08-14 08:50 | 20m | - / -14 | EC3A | -6 / - | 2 | ✓ Closing fragment |
| 08-14 08:49 | 20m | - / -15 | EA3FN | -11 / - | 3 | ✓ Closing fragment |
| 08-14 08:15 | 20m | - / - | IN3XUG | -7 / - | 6 | Partial capture |
| 08-14 08:09 | 20m | - / -11 | IK4HLQ | -11 / - | 3 | ✓ Closing fragment |
| 08-13 23:12 | 40m | - / -16 | IU5VLR | -15 / - | 3 | ✓ Closing fragment |
| 08-13 22:52 | 40m | - / - | PD0IFI | -10 / - | 2 | Partial capture |
| 08-13 22:48 | 40m | - / -17 | M0GLT | -4 / - | 3 | ✓ Closing fragment |
| 08-13 22:46 | 40m | - / - | DK2SW | -12 / - | 16 | Partial capture |
| 08-13 22:11 | 60m | - / - | EA1RT | -6 / - | 4 | Partial capture |
| 08-13 22:02 | 40m | - / - | OZ6P | -8 / - | 2 | ✓ Closing fragment |
| 08-13 21:52 | 40m | - / - | HB9TOC | -7 / - | 3 | Partial capture |
| 08-13 21:49 | 40m | - / -11 | DL1AOB | 0 / - | 4 | ✓ Closing fragment |
| 08-13 21:41 | 40m | - / -18 | RN6MA | -14 / - | 2 | ✓ Closing fragment |
| 08-13 21:39 | 40m | - / -6 | 5B4AMM | -12 / - | 2 | ✓ Closing fragment |
| 08-13 21:28 | 40m | - / - | OT1V | -12 / - | 11 | Partial capture |
| 08-13 21:20 | 40m | - / - | PC2J | -16 / - | 2 | Partial capture |
| 08-13 21:11 | 40m | - / - | OT1V | +2 / - | 2 | Partial capture |
| 08-13 21:10 | 40m | - / - | IW0RLC | -21 / - | 3 | Partial capture |
| 08-13 21:06 | 40m | - / - | DK7VK | -11 / - | 10 | Partial capture |
| 08-13 21:04 | 40m | - / -23 | S52D | -6 / - | 5 | ✓ Closing fragment |
| 08-13 21:03 | 40m | - / - | OK1CT | -8 / - | 3 | Partial capture |
| 08-13 21:01 | 40m | - / - | S51UN | -12 / - | 2 | Partial capture |
| 08-13 21:01 | 40m | - / - | IW0RLC | -23 / - | 3 | Partial capture |
| 08-13 20:59 | 40m | - / - | RL3K | -16 / - | 2 | Partial capture |
| 08-13 20:58 | 40m | - / -13 | SV8GXC | -21 / - | 2 | ✓ Closing fragment |
| 08-13 20:45 | 40m | - / - | DL7ACA | -11 / - | 3 | Partial capture |
| 08-13 20:45 | 40m | - / - | DR800WE | -4 / - | 3 | ✓ Closing fragment |
| 08-13 20:43 | 40m | - / - | S57BTI | -11 / - | 3 | Partial capture |
| 08-13 20:39 | 40m | - / - | 9A5CW | -12 / - | 6 | Partial capture |
| 08-13 20:35 | 40m | - / -13 | IK6DLK | -19 / - | 3 | ✓ Closing fragment |
| 08-13 20:11 | 40m | - / -13 | SP7QJF | -17 / - | 3 | ✓ Closing fragment |
| 08-12 22:23 | 20m | - / -16 | IZ2DVI | +4 / - | 4 | ✓ Closing fragment |
| 08-12 22:00 | 20m | - / -10 | S58N | +6 / - | 7 | ✓ Closing fragment |
| 08-12 21:55 | 20m | - / -20 | PA2EW | -11 / - | 3 | ✓ Closing fragment |
| 08-12 21:42 | 20m | - / - | SP7QJF | -12 / - | 2 | Partial capture |
| 08-12 20:28 | 20m | - / -14 | IU3BIX | -3 / - | 5 | ✓ Closing fragment |
| 08-12 20:17 | 20m | - / - | ON6AO | +6 / - | 18 | Partial capture |
| 08-12 19:54 | 20m | - / -21 | PA4GDR | -10 / - | 3 | ✓ Closing fragment |
| 08-12 19:43 | 20m | - / - | OZ1LDO | -12 / - | 3 | Partial capture |
| 08-12 19:42 | 20m | - / - | OK2PB | -8 / - | 4 | Partial capture |
| 08-12 19:37 | 20m | -24 / -12 | IZ4EKI | -9 / -6 | 7 | ✓ Full exchange observed |
| 08-12 19:29 | 20m | - / - | PD3LKN | -8 / - | 11 | Partial capture |
| 08-12 19:24 | 20m | - / -7 | F6BPZ | -18 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 094115 -12 2021 HZ1YJ PA1PA R-17 (x2) 095045 -17 1372 HZ1YJ UR9QQ KN77 (x4) 100115 -1 1844 HZ1YJ DH9DR JO31 100145 -14 1373 HZ1YJ UR9QQ R-16 (x2) 100215 -2 1978 HZ1YJ DH9DR JO31 (x4) 134815 -12 1406 HZ1YJ PD2HYN JO21 (x2)
UTC dB Audio Message 225115 -20 1800 HZ1YJ DK2SW JO43 (x3) 225245 -10 2225 HZ1YJ PD0IFI JO32 225245 -15 1800 HZ1YJ DK2SW JO43 225315 -9 2225 HZ1YJ PD0IFI JO32 225315 -16 1800 HZ1YJ DK2SW JO43 (x6) 231215 -18 1534 HZ1YJ IU5VLR JN53 (x3)
UTC dB Audio Message 221115 -4 756 HZ1YJ EA1RT IN73 (x4)
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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