Z35T — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving Z35T, decoded by SO8OO in southeastern Poland. 1,285 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 52 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-14.
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 1,285 FT8 messages attributed to Z35T as the transmitting token by decoded message structure across 52 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (56%), followed by 80 m (23%) and 60 m (12%). Most decodes (90%) fell within the six-hour window 03:00-09:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (73%); the estimated median was -3.2 dB.
Overview
Bands
Last attributed message: 2026-10-14 05:24 UTC
Observed FT8 message patterns
- Attributed sample
- 1,285 messages
- Active dates
- 52 UTC dates
- Estimated median S/N
- -3.2 dB
- Estimated 10th-90th percentile
- -12.9 to +8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 61, moderate (-15 to -9 dB) 288, strong (≥ -8 dB) 936.
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 Z35T 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 Z35T
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
- KN11 · 330 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 943 km (approx.)
- Last such locator decoded
- 2026-10-08 04:08 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 | Z35T S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-14 05:22 | 60m | -8 / - | FW1P | - / -19 | 5 | Partial capture |
| 10-13 04:10 | 40m | - / 0 | RK4UZ | -7 / - | 2 | ✓ Closing fragment |
| 10-13 03:47 | 40m | - / - | EA5HM | -4 / - | 3 | Partial capture |
| 10-12 03:31 | 40m | - / - | RZ4FWA | -24 / - | 2 | ✓ Closing fragment |
| 10-11 04:50 | 40m | -23 / - | PR2TX | - / -24 | 3 | Partial capture |
| 10-09 03:07 | 40m | - / -11 | F4FPR | -10 / - | 2 | ✓ Closing fragment |
| 10-08 04:08 | 40m | -20 / - | C5R | - / - | 2 | Partial capture |
| 10-07 05:02 | 80m | - / - | IN3WZS | +4 / - | 9 | Partial capture |
| 10-07 05:00 | 80m | - / -16 | KY2J | -12 / - | 3 | Partial capture |
| 10-07 04:59 | 80m | - / - | 5P1OT | 0 / - | 10 | Partial capture |
| 10-07 04:59 | 80m | - / -2 | F5RAV | -1 / - | 3 | ✓ Closing fragment |
| 10-07 04:58 | 80m | -8 / -11 | HA7XL | +18 / - | 4 | ✓ Closing observed |
| 10-07 04:57 | 80m | -6 / -5 | DL1MC | +1 / -12 | 3 | ✓ Full exchange observed |
| 10-07 04:55 | 80m | -20 / -22 | UT1XU | +7 / - | 4 | ✓ Closing observed |
| 10-07 04:54 | 80m | -18 / +3 | YO9HP | -5 / +3 | 3 | ✓ Full exchange observed |
| 10-07 04:53 | 80m | -16 / -4 | WF2A | +2 / -8 | 3 | ✓ Full exchange observed |
| 10-07 04:13 | 80m | -2 / -8 | N0BUZ | -10 / -14 | 6 | ✓ Full exchange observed |
| 10-06 04:37 | 60m | -6 / - | W9JJB | - / -19 | 3 | ✓ Closing fragment |
| 10-06 04:33 | 60m | -6 / -5 | NP3RK | -8 / -9 | 7 | ✓ Full exchange observed |
| 10-04 05:19 | 40m | - / - | PA1VW | -8 / - | 2 | Partial capture |
| 10-04 05:16 | 40m | -10 / - | HI3LER | - / -13 | 6 | Partial capture |
| 10-04 04:56 | 40m | -7 / - | HI3LER | - / -16 | 4 | Partial capture |
| 10-04 04:53 | 40m | -1 / - | F5PBG | -13 / -8 | 2 | Partial capture |
| 10-04 04:52 | 40m | -2 / - | TA3XEE | - / -12 | 2 | ✓ Closing fragment |
| 10-04 04:15 | 60m | -2 / - | 9T0MD | - / -14 | 13 | Partial capture |
| 10-04 03:59 | 60m | -4 / - | 9T0MD | - / - | 4 | Partial capture |
| 10-04 03:49 | 60m | -4 / - | 9T0MD | - / - | 5 | Partial capture |
| 10-04 03:47 | 60m | 0 / - | S56P | - / -13 | 2 | ✓ Closing fragment |
| 10-04 03:46 | 60m | +2 / - | 9T0MD | - / - | 2 | Partial capture |
| 10-04 03:46 | 60m | +1 / - | S57MPU | -9 / +9 | 5 | Partial capture |
| 10-04 03:45 | 60m | -2 / 0 | DF7EF | +11 / +7 | 7 | ✓ Full exchange observed |
| 10-04 03:42 | 60m | -4 / - | KM0T | - / -22 | 6 | Partial capture |
| 10-04 03:39 | 60m | -4 / - | 9T0MD | - / - | 6 | Partial capture |
| 10-03 04:26 | 60m | -8 / - | S57MPU | +14 / -4 | 7 | Partial capture |
| 10-03 04:25 | 60m | -10 / - | HK5R | - / -17 | 2 | Partial capture |
| 10-03 04:20 | 60m | 0 / - | K5UR | - / -8 | 2 | ✓ Closing fragment |
| 10-03 04:13 | 60m | -6 / - | HK5R | - / -16 | 12 | Partial capture |
| 10-03 04:12 | 60m | -4 / 0 | F5MOO | -8 / -23 | 5 | ✓ Full exchange observed |
| 10-03 04:10 | 60m | 0 / - | IK4CBO | -8 / -16 | 5 | ✓ Full exchange observed |
| 10-03 04:10 | 60m | - / - | DL6FKR | -7 / - | 2 | Partial capture |
| 10-03 04:09 | 60m | -4 / +4 | F4LVE | -14 / -19 | 5 | ✓ Full exchange observed |
| 10-03 04:09 | 60m | -2 / - | EA8BS | -8 / +5 | 3 | ✓ Closing observed |
| 10-03 04:06 | 60m | -4 / - | K4MV | - / -8 | 2 | ✓ Closing fragment |
| 10-03 04:05 | 60m | -2 / - | WA2CLX | - / -20 | 2 | ✓ Closing fragment |
| 10-03 04:04 | 60m | -2 / - | AA6KJ | - / -5 | 2 | ✓ Closing fragment |
| 10-03 04:00 | 60m | - / - | DL6FKR | -13 / - | 2 | Partial capture |
| 10-03 03:59 | 60m | -3 / - | N4DWD | - / -12 | 2 | ✓ Closing fragment |
| 10-03 03:58 | 60m | -4 / -2 | DD6WF | -4 / - | 4 | ✓ Full exchange observed |
| 10-03 03:57 | 60m | -3 / - | K2TY | - / -4 | 2 | ✓ Closing fragment |
| 10-03 03:56 | 60m | -12 / - | TA4SSK | - / -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 043400 -6 2164 NP3RK Z35T -09 043415 -8 738 Z35T NP3RK R-05 043430 -6 2164 NP3RK Z35T RR73 (x4) 043630 -3 2164 <SV5/TF1OL> Z35T -08 043700 -3 2164 W9JJB Z35T -19 (x3) 052215 -20 723 FW1P Z35T -19 (x5)
UTC dB Audio Message 030745 -9 2412 Z35T F4FPR R-11 (x2) 045000 -22 1782 PR2TX Z35T -24 (x4) 033100 -20 2300 Z35T R1BMY R-16 033130 -24 1773 Z35T RZ4FWA LO23 (x2) 034745 -5 2114 Z35T EA5HM IM99 (x3) 041045 -7 2777 Z35T RK4UZ R+00 (x2) 042230 -12 2420 Z35T PQ5TA R+00
UTC dB Audio Message 050145 +10 2345 Z35T 5P1OT JO66 050215 +8 2409 Z35T IN3WZS JN56 050215 +3 2221 Z35T 5P1OT JO66 050245 +8 2409 Z35T IN3WZS JN56 050245 +1 2221 Z35T 5P1OT JO66 050315 +6 2409 Z35T IN3WZS JN56 050315 +0 2339 Z35T 5P1OT JO66 050345 +5 2409 Z35T IN3WZS JN56 050345 +1 2340 Z35T 5P1OT JO66 050415 +5 2409 Z35T IN3WZS JN56 050415 +0 2339 Z35T 5P1OT JO66 050445 +5 2409 Z35T IN3WZS JN56 (x4)
UTC dB Audio Message 084000 +10 2669 BH7KBW Z35T -15 (x5) 090100 -14 2168 Z35T <...> R-04 (x2)
UTC dB Audio Message 053700 +7 2723 VK3KCD Z35T -08 (x3) 045415 -24 1840 Z35T <...> -15 (x3) 050400 -7 2104 Z35T EP2AES R+12 (x2) 050530 -24 1834 Z35T UB6LLI R-24 050530 -9 2104 Z35T EP2AES 73 051300 -1 1582 Z35T R6DYK -02 (x2) 051430 -23 1749 Z35T EB7CFU 73 051515 -16 2710 R6DYK Z35T R-09 (x2)
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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