ZL3ES — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving ZL3ES, decoded by SO8OO in southeastern Poland. 6 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-25 and 2026-08-26.
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 6 FT8 messages attributed to ZL3ES as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (83%), followed by 20 m (17%). In this small sample, the estimated median decoder S/N was -8 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-08-26 05:03 UTC
Observed FT8 message patterns
- Attributed sample
- 6 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -8 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 5.
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 ZL3ES in decoded directed-looking exchanges:
Most frequent locator attributed to ZL3ES
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
- RE66 · 2 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 17,723 km (approx.)
- Last such locator decoded
- 2026-08-26 05:03 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 | ZL3ES S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-17 07:53 | 40m | - / -20 | G4RIQ | -9 / - | 2 | ✓ Closing fragment |
| 09-17 07:46 | 40m | - / - | F4JVF | -17 / - | 2 | Partial capture |
| 09-15 06:30 | 60m | - / - | F5DRD | -9 / - | 3 | ✓ Closing fragment |
| 09-15 06:30 | 60m | - / - | G0TSM | -9 / - | 2 | Partial capture |
| 09-15 06:27 | 60m | - / -15 | HB9ACA | -14 / - | 3 | Partial capture |
| 09-15 06:26 | 60m | - / -19 | PA4PA | -6 / - | 3 | ✓ Closing fragment |
| 09-13 06:04 | 80m | - / - | F4JTM | -3 / - | 7 | Partial capture |
| 09-13 05:40 | 80m | - / - | F4JTM | -8 / - | 4 | Partial capture |
| 09-13 05:37 | 80m | - / -20 | PI4DX | -6 / - | 2 | ✓ Closing fragment |
| 09-07 05:40 | 60m | - / -19 | F5IDJ | +10 / - | 2 | Partial capture |
| 09-07 05:35 | 60m | - / -15 | IT9DVZ | -10 / - | 8 | ✓ Closing fragment |
| 09-07 05:35 | 60m | - / - | DK7UY | -9 / - | 2 | Partial capture |
| 09-07 05:34 | 60m | - / - | IK5CVV | -10 / - | 6 | Partial capture |
| 09-07 05:34 | 60m | - / -22 | G7GXK | -7 / - | 4 | ✓ Closing fragment |
| 09-05 05:56 | 60m | - / -19 | OE7UU | +1 / - | 3 | ✓ Closing fragment |
| 09-05 05:54 | 60m | - / -12 | F5OZC | -14 / - | 3 | ✓ Closing fragment |
| 09-05 05:54 | 60m | - / -23 | G3SHK | -10 / - | 2 | ✓ Closing fragment |
| 09-05 05:51 | 60m | - / - | DL5DQZ | +4 / - | 2 | Partial capture |
| 09-05 05:50 | 60m | - / -16 | DK5WL | -4 / - | 4 | ✓ Closing fragment |
| 09-05 05:48 | 60m | - / -19 | IK4CBO | -12 / - | 6 | ✓ Closing fragment |
| 09-05 05:44 | 60m | - / - | SM3EVR | -1 / - | 4 | Partial capture |
| 09-05 05:43 | 60m | - / -16 | OH8JP | -6 / - | 13 | ✓ Closing fragment |
| 09-05 05:43 | 60m | - / - | DK5WL | -1 / - | 3 | Partial capture |
| 09-05 05:43 | 60m | - / - | DL5AXX | +6 / - | 2 | Partial capture |
| 09-05 05:43 | 60m | - / - | IK4CBO | -14 / - | 2 | Partial capture |
| 09-05 05:42 | 60m | - / -13 | HB9ALO | -8 / - | 6 | ✓ Closing fragment |
| 09-05 05:40 | 60m | - / - | DL5AXX | +14 / - | 2 | Partial capture |
| 09-05 05:40 | 60m | - / -12 | F6FTB | -9 / - | 6 | Partial capture |
| 09-05 05:39 | 60m | - / - | IK4CBO | -14 / - | 4 | Partial capture |
| 09-05 05:38 | 60m | - / - | G3SHK | -8 / - | 2 | Partial capture |
| 09-05 05:37 | 60m | - / - | F5NLY | -16 / - | 4 | Partial capture |
| 09-05 05:36 | 60m | - / -19 | SM3EVR | +2 / - | 4 | Partial capture |
| 09-03 06:17 | 40m | - / -10 | ON5RZ | -6 / - | 8 | Partial capture |
| 08-31 05:29 | 40m | - / - | IZ0HDB | -10 / - | 3 | Partial capture |
| 08-31 05:24 | 40m | - / - | OK2IT | -8 / - | 2 | Partial capture |
| 08-31 05:22 | 40m | - / - | GB64MOD | -11 / - | 5 | ✓ Closing fragment |
| 08-31 05:22 | 40m | - / - | IU5AWQ | -8 / - | 2 | Partial capture |
| 08-31 05:21 | 40m | - / - | DL5XJ | +15 / - | 7 | Partial capture |
| 08-31 05:21 | 40m | - / - | II3DRC | +8 / - | 8 | Partial capture |
| 08-31 05:18 | 40m | - / -10 | SV2BWY | -15 / - | 4 | ✓ Closing fragment |
| 08-31 05:17 | 40m | - / -12 | DJ9FK | +9 / - | 5 | ✓ Closing fragment |
| 08-31 05:15 | 40m | - / -15 | EA5HM | -18 / - | 2 | ✓ Closing fragment |
| 08-31 05:13 | 40m | - / - | PA3HFT | -10 / - | 2 | Partial capture |
| 08-31 05:12 | 40m | - / -15 | DM9LSB | -5 / - | 4 | ✓ Closing fragment |
| 08-31 04:57 | 40m | - / - | EA3NE | -11 / - | 2 | Partial capture |
| 08-31 04:55 | 40m | - / -8 | DL3OCF | +4 / - | 5 | Partial capture |
| 08-31 04:54 | 40m | - / -11 | 4O7CC | 0 / - | 2 | ✓ Closing fragment |
| 08-27 05:29 | 40m | - / -19 | OK2BJ | +6 / - | 7 | ✓ Closing fragment |
| 08-26 05:10 | 40m | - / - | F6DZU | 0 / - | 3 | Partial capture |
| 08-26 05:10 | 40m | - / -19 | OK1UG | +14 / - | 6 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 052930 -11 1633 ZL3ES IZ0HDB JN62 (x3) 061745 -2 411 ZL3ES ON5RZ -10 (x8) 074600 -19 2296 ZL3ES F4JVF IN95 (x2) 075315 -9 1751 ZL3ES G4RIQ R-20 (x2)
UTC dB Audio Message 053900 -14 1157 ZL3ES IT9DVZ R-15 (x2) 054000 +11 2418 ZL3ES F5IDJ -19 (x2) 062630 -7 239 ZL3ES PA4PA JO22 (x2) 062700 -11 2232 ZL3ES HB9ACA JN36 062730 -5 238 ZL3ES PA4PA 73 062730 -15 2232 ZL3ES HB9ACA JN36 (x2) 063030 -8 651 ZL3ES G0TSM IO90 063030 -7 534 ZL3ES F5DRD RR73 (x2) 063130 -10 651 ZL3ES G0TSM IO90 063130 -9 534 ZL3ES F5DRD RR73
UTC dB Audio Message 053745 -5 1066 ZL3ES PI4DX R-20 (x2) 054015 -8 1157 ZL3ES F4JTM JN39 (x4) 054315 -21 1158 ZL3ES F4FRQ JN37 060430 -4 2603 ZL3ES F4JTM JN39 (x7)
UTC dB Audio Message 044145 -18 1828 VA7TF ZL3ES RE66
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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