HZ1RSM — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving HZ1RSM, decoded by SO8OO in southeastern Poland. 91 FT8 messages attributed to this token as transmitter, on 10m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-06-18.
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 91 FT8 messages attributed to HZ1RSM as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (100%). Most decodes (81%) fell within the six-hour window 07:00-13:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (68%); the estimated median was -18 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 91 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- -18 dB
- Estimated 10th-90th percentile
- -24 to -11 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 62, moderate (-15 to -9 dB) 27, strong (≥ -8 dB) 2.
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.
Most frequent locator attributed to HZ1RSM
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
- LL34 · 91 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 3,567 km (approx.)
- Last such locator decoded
- 2026-06-18 07:48 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 | HZ1RSM S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-02 10:58 | 10m | - / -1 | IK4TVP | -22 / - | 4 | Partial capture |
| 08-31 04:56 | 20m | - / - | RV6F | +8 / - | 6 | Partial capture |
| 08-31 04:29 | 20m | - / - | 5Z4VJ | -2 / - | 3 | Partial capture |
| 08-20 04:25 | 20m | - / - | 5Z4VJ | 0 / - | 3 | Partial capture |
| 08-20 04:25 | 20m | - / - | LZ2VQ | -5 / - | 3 | Partial capture |
| 08-18 09:49 | 10m | - / - | LZ4VR | -19 / - | 3 | Partial capture |
| 08-06 10:48 | 20m | - / - | R7OV | -23 / - | 3 | Partial capture |
| 08-05 17:51 | 20m | - / - | PD0RCQ | -18 / - | 3 | Partial capture |
| 08-04 05:02 | 20m | - / - | LZ1VVD | -14 / - | 2 | Partial capture |
| 08-04 05:02 | 20m | - / - | S56A | -23 / - | 3 | Partial capture |
| 07-22 06:54 | 10m | - / -22 | IZ7GIT | -17 / - | 2 | Partial capture |
| 07-21 06:02 | 10m | - / -16 | DL7FD | -16 / - | 3 | Partial capture |
| 07-19 04:32 | 20m | - / - | R6FX | -18 / - | 2 | Partial capture |
| 07-09 11:43 | 10m | - / - | EA3EDU | -14 / - | 3 | Partial capture |
| 07-09 08:11 | 20m | - / - | LZ2VQ | -10 / - | 2 | Partial capture |
| 07-05 07:24 | 10m | - / - | DL3MIB | -16 / - | 3 | Partial capture |
| 06-22 04:40 | 20m | - / - | LZ2VQ | -19 / - | 2 | Partial capture |
| 06-21 06:12 | 20m | - / - | OD5KU | -8 / - | 8 | Partial capture |
| 06-21 05:37 | 20m | - / - | RZ4AZ | -20 / - | 2 | Partial capture |
| 06-16 09:12 | 10m | - / - | IK0GDK | -23 / - | 3 | Partial capture |
| 06-16 09:08 | 10m | - / - | IK0GDK | -21 / - | 3 | Partial capture |
| 06-16 09:01 | 10m | - / - | IK0GDK | -17 / - | 6 | Partial capture |
| 06-16 08:57 | 10m | - / - | IK0GDK | -21 / - | 2 | Partial capture |
| 06-16 08:36 | 10m | - / - | IU0VOG | -18 / - | 10 | Partial capture |
| 06-16 05:20 | 20m | - / - | F5RRS | +13 / - | 3 | Partial capture |
| 06-15 08:41 | 10m | - / - | F4BJN | -11 / - | 3 | Partial capture |
| 06-15 07:49 | 20m | - / - | RV6F | -4 / - | 6 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 072245 -15 877 HZ1RSM RD7LO LN06 060215 -17 1414 HZ1RSM DL7FD -16 (x3) 065400 -21 1594 HZ1RSM IZ7GIT -22 (x2) 085715 -17 1595 HZ1RSM RW4CB -18 094915 -21 1824 HZ1RSM LZ4VR KN13 (x3) 093415 -24 1591 HZ1RSM IW4DLP JN54 105845 -18 1904 HZ1RSM IK4TVP -01 (x4)
UTC dB Audio Message 042615 +2 491 HZ1RSM 5Z4VJ KI88 (x2) 042645 -1 1581 HZ1RSM LZ2VQ KN23 044900 -14 644 HZ1RSM R2AL KO85 041345 -24 1579 HZ1RSM UA3PAB KO84 042945 -2 2229 HZ1RSM 5Z4VJ KI88 (x3) 045630 +4 1464 HZ1RSM RV6F LN14 (x6) 051430 -21 1578 HZ1RSM UX5UW KO50
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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