9Z4CT — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving 9Z4CT, decoded by SO8OO in southeastern Poland. 12 FT8 messages attributed to this token as transmitter, on 40m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-21.
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 12 FT8 messages attributed to 9Z4CT as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 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
- 12 messages
- Active dates
- 5 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) 8, moderate (-15 to -9 dB) 4, 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 9Z4CT in decoded directed-looking exchanges:
Most frequent locator attributed to 9Z4CT
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
- FK90 · 7 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,602 km (approx.)
- Last such locator decoded
- 2026-09-21 00:12 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 | 9Z4CT S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-14 23:29 | 40m | - / -2 | M6WRB | -11 / - | 8 | Partial capture |
| 09-14 23:28 | 40m | - / - | PC2J | +8 / - | 5 | Partial capture |
| 09-14 23:14 | 40m | - / - | DL7ACA | +8 / - | 2 | Partial capture |
| 09-14 23:11 | 40m | -16 / +2 | EH3ST | -16 / -14 | 7 | ✓ Full exchange observed |
| 09-14 23:11 | 40m | - / - | BD8CNL | -16 / - | 2 | Partial capture |
| 09-14 23:11 | 40m | - / - | HB9ELE | +12 / - | 11 | Partial capture |
| 09-14 23:07 | 40m | - / -14 | ON1JP | -19 / - | 2 | Partial capture |
| 09-14 23:06 | 40m | - / - | LB9VH | -8 / - | 2 | Partial capture |
| 08-19 23:16 | 40m | - / -11 | PA1PXL | +3 / - | 6 | Partial capture |
| 08-16 23:38 | 40m | - / -17 | UT5ZC | -11 / - | 8 | Partial capture |
| 08-16 23:31 | 40m | - / -19 | UT5ZC | -13 / - | 6 | Partial capture |
| 08-16 23:30 | 40m | - / - | HB9DGK | -9 / - | 2 | Partial capture |
| 08-16 23:29 | 40m | - / - | OM0RX | -6 / - | 4 | Partial capture |
| 08-16 23:27 | 40m | - / -21 | RA4FUP | -18 / - | 3 | Partial capture |
| 08-16 23:27 | 40m | - / -12 | EW8CW | -14 / - | 10 | Partial capture |
| 08-16 23:18 | 40m | - / - | G0GFC | -20 / - | 2 | ✓ Closing fragment |
| 08-16 23:18 | 40m | - / -19 | RA4FUP | -14 / - | 6 | Partial capture |
| 08-16 23:18 | 40m | - / -12 | SP5EXA | 0 / - | 8 | ✓ Closing fragment |
| 08-16 23:14 | 40m | - / -7 | DL1UDO | -20 / - | 4 | Partial capture |
| 08-16 23:13 | 40m | - / - | DG5SMY | -20 / - | 2 | Partial capture |
| 08-16 23:13 | 40m | - / - | RX3ASQ | -18 / - | 2 | Partial capture |
| 08-16 23:13 | 40m | - / - | SP5EXA | +1 / - | 3 | Partial capture |
| 08-16 22:58 | 40m | - / -14 | YO6LM | +1 / - | 2 | Partial capture |
| 08-06 23:07 | 40m | - / - | LB7ZG | -13 / - | 2 | ✓ Closing fragment |
| 08-06 23:01 | 40m | - / -17 | F5MYH | -20 / - | 23 | Partial capture |
| 08-06 22:59 | 40m | - / - | DH5BM | -20 / - | 2 | Partial capture |
| 08-04 23:25 | 40m | - / -13 | UA3DIB | -12 / - | 4 | ✓ Closing fragment |
| 08-04 23:23 | 40m | - / - | M0LAD | -22 / - | 2 | Partial capture |
| 08-04 23:13 | 40m | - / -17 | ON3ABR | -10 / - | 3 | ✓ Closing fragment |
| 08-04 22:29 | 40m | - / -15 | G0ANS | -12 / - | 2 | Partial capture |
| 08-04 22:20 | 40m | - / -14 | G3YPP | -21 / - | 4 | ✓ Closing fragment |
| 08-01 19:37 | 10m | - / - | CR7BOV | -13 / - | 4 | Partial capture |
| 07-28 15:58 | 10m | - / - | EA3CXN | -12 / - | 2 | Partial capture |
| 07-26 23:01 | 40m | - / -18 | UA4FKT | -10 / - | 4 | ✓ Closing fragment |
| 07-26 22:59 | 40m | - / -9 | DL7DL | -11 / - | 3 | ✓ Closing fragment |
| 07-26 22:55 | 40m | - / - | DL7DL | -11 / - | 2 | Partial capture |
| 07-26 22:52 | 40m | - / -13 | EB1LA | -17 / - | 3 | ✓ Closing fragment |
| 07-26 20:43 | 10m | - / -6 | F1LZV | -16 / - | 2 | ✓ Closing fragment |
| 07-26 20:34 | 10m | - / - | F1LZV | -16 / - | 2 | Partial capture |
| 07-10 19:37 | 10m | - / - | DO1SWC | -16 / - | 5 | Partial capture |
| 07-10 19:37 | 10m | - / -18 | DO3ME | -6 / - | 2 | Partial capture |
| 07-10 19:26 | 10m | - / -18 | DG5TF | 0 / - | 5 | Partial capture |
| 07-04 00:44 | 40m | - / - | R4RM | -4 / - | 2 | Partial capture |
| 07-04 00:34 | 40m | - / -12 | RA3TKS | -18 / - | 2 | ✓ Closing fragment |
| 07-04 00:33 | 40m | - / -12 | HB9EFK | -2 / - | 2 | ✓ Closing fragment |
| 07-04 00:33 | 40m | - / - | R4RL | -8 / - | 2 | Partial capture |
| 06-29 21:51 | 10m | - / -13 | IW3FVQ | -5 / - | 6 | ✓ Closing fragment |
| 06-28 22:15 | 10m | - / - | DO3SK | -4 / - | 2 | Partial capture |
| 06-27 14:41 | 10m | - / -14 | ON7EH | -16 / - | 3 | ✓ Closing fragment |
| 06-27 11:52 | 10m | - / -20 | DL6II | -5 / - | 5 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 232830 +10 593 9Z4CT PC2J JO22 (x3) 232930 -19 2034 9Z4CT M6WRB -02 233000 +12 593 9Z4CT PC2J JO22 233000 -8 2034 9Z4CT M6WRB -02 233030 +6 593 9Z4CT PC2J JO22 233030 -6 2034 9Z4CT M6WRB -02 (x6) 001230 -15 1508 CQ 9Z4CT FK90 001245 -14 876 9Z4CT N4DWD EM86
UTC dB Audio Message 193930 -21 1953 9Z4CT DO1SWC JN58 144630 -12 600 9Z4CT EB3JT JN01 155700 -12 589 9Z4CT DN9BT JO40 203230 -17 1794 9Z4CT RA3QVJ KO90 203430 -14 1215 9Z4CT F1LZV JN13 (x4) 155815 -12 936 9Z4CT EA3CXN JN01 (x2) 154615 -9 2732 9Z4CT F1PBZ -11 193745 -13 2531 9Z4CT CR7BOV IM58 (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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