IT9ACJ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IT9ACJ, decoded by SO8OO in southeastern Poland. 1,722 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 55 UTC dates in the available aggregate history. Observed between 2026-06-29 and 2026-09-08.
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 1,722 FT8 messages attributed to IT9ACJ as the transmitting token by decoded message structure across 55 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (46%), followed by 10 m (37%) and 40 m (18%). The busiest six-hour window was 17:00-23:00 UTC, containing 46% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16.8 dB.
Overview
Bands
Last attributed message: 2026-09-08 21:07 UTC
Observed FT8 message patterns
- Attributed sample
- 1,722 messages
- Active dates
- 55 UTC dates
- Estimated median S/N
- -16.8 dB
- Estimated 10th-90th percentile
- -23 to -3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 969, moderate (-15 to -9 dB) 403, strong (≥ -8 dB) 350.
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 IT9ACJ 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 IT9ACJ
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
- JM77 · 1,364 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,485 km (approx.)
- Last such locator decoded
- 2026-09-08 21:07 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 | IT9ACJ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-08 21:15 | 40m | - / -10 | TC2EYL | -1 / - | 5 | ✓ Closing fragment |
| 09-08 21:02 | 40m | -13 / -11 | LZ1CCP | -12 / -6 | 5 | ✓ Full exchange observed |
| 09-07 22:05 | 40m | - / - | PF2A | -3 / - | 4 | Partial capture |
| 09-07 22:05 | 40m | - / - | SP9CLQ | -18 / - | 2 | Partial capture |
| 09-07 22:05 | 40m | -7 / - | SP9SIR | - / -19 | 2 | ✓ Closing fragment |
| 09-07 21:59 | 40m | - / - | DG5PW | -5 / - | 2 | Partial capture |
| 09-07 06:28 | 40m | - / -16 | SP2SGK | -10 / - | 3 | Partial capture |
| 09-07 05:50 | 40m | - / -17 | YO6BLM | -4 / - | 2 | ✓ Closing fragment |
| 09-07 05:44 | 40m | - / - | YO6BLM | -2 / - | 6 | Partial capture |
| 09-07 05:36 | 40m | -22 / - | IN3LTL | -14 / - | 2 | ✓ Closing observed |
| 09-07 05:17 | 40m | - / -8 | PD2MAC | -11 / - | 5 | ✓ Closing fragment |
| 09-07 05:13 | 40m | - / - | KB3Z | -10 / - | 6 | Partial capture |
| 09-06 22:28 | 40m | -14 / -9 | DL2EMS | -12 / -25 | 4 | Partial capture |
| 09-06 22:18 | 40m | - / - | IU5JAE | -20 / - | 2 | Partial capture |
| 09-06 21:42 | 40m | -9 / -9 | RJ6L | -3 / -5 | 5 | ✓ Full exchange observed |
| 09-06 06:00 | 40m | - / -16 | PE1OID | -10 / - | 15 | ✓ Closing fragment |
| 09-06 05:41 | 40m | - / -9 | PE1OID | -10 / - | 2 | Partial capture |
| 09-05 23:55 | 40m | -17 / - | R3PJV | 0 / -12 | 6 | Partial capture |
| 09-05 23:53 | 40m | - / +1 | TA3NK | -4 / - | 4 | ✓ Closing fragment |
| 09-05 23:04 | 40m | - / - | OU7M/P | +7 / - | 3 | Partial capture |
| 09-05 22:56 | 40m | - / - | R2GFN | +4 / - | 5 | Partial capture |
| 09-05 22:52 | 40m | - / - | F6FHZ | -13 / - | 5 | Partial capture |
| 09-05 22:49 | 40m | - / - | R2GFN | +2 / - | 4 | Partial capture |
| 09-05 22:48 | 40m | - / - | F6FHZ | -12 / - | 2 | Partial capture |
| 09-05 22:41 | 40m | - / - | F6FHZ | -11 / - | 6 | Partial capture |
| 09-05 22:41 | 40m | - / - | IZ4AFM | +17 / - | 2 | Partial capture |
| 09-05 22:39 | 40m | - / - | R2GFN | 0 / - | 3 | Partial capture |
| 09-05 22:37 | 40m | - / - | F6FHZ | -12 / - | 4 | Partial capture |
| 09-05 22:20 | 40m | -14 / - | OZ2NYB/P | -5 / -7 | 2 | Partial capture |
| 09-05 22:20 | 40m | -16 / - | TA7I | - / -7 | 2 | ✓ Closing fragment |
| 09-05 22:15 | 40m | -20 / -15 | 5P2F/P | +1 / -11 | 5 | ✓ Full exchange observed |
| 09-05 22:10 | 40m | - / - | DA1TE | -8 / - | 2 | Partial capture |
| 09-05 22:07 | 40m | - / -17 | 5P2F/P | -1 / - | 2 | Partial capture |
| 09-05 22:01 | 40m | - / -9 | RD6OZ | +4 / - | 4 | ✓ Closing fragment |
| 09-05 21:59 | 40m | -11 / -14 | PA0KGB | +2 / -5 | 6 | ✓ Full exchange observed |
| 09-05 21:52 | 40m | - / -9 | DF1IH | 0 / - | 5 | ✓ Closing fragment |
| 09-05 21:37 | 40m | - / - | OZ2NYB/P | 0 / - | 3 | Partial capture |
| 09-05 21:35 | 40m | - / +5 | OZ8MW | -8 / - | 5 | Partial capture |
| 09-05 21:28 | 40m | - / - | F6FHZ | -8 / - | 5 | Partial capture |
| 09-05 21:24 | 40m | - / - | OZ7SKB/P | 0 / - | 3 | Partial capture |
| 09-05 21:22 | 40m | - / -15 | OZ3FYN/P | -1 / - | 3 | ✓ Closing fragment |
| 09-03 05:35 | 40m | - / - | S57CT | -2 / - | 3 | Partial capture |
| 09-02 21:38 | 40m | - / - | TC2EYL | -21 / - | 2 | Partial capture |
| 09-01 22:58 | 40m | - / - | R3PJV | +6 / - | 2 | Partial capture |
| 09-01 22:41 | 40m | -17 / - | UA9SY | -11 / - | 2 | ✓ Closing observed |
| 09-01 22:25 | 40m | - / - | SP5MXW/P | -10 / - | 2 | Partial capture |
| 09-01 22:21 | 40m | -13 / +1 | TC30AGU | -3 / -10 | 2 | Partial capture |
| 09-01 22:12 | 40m | -18 / -10 | R3PJV | -8 / -15 | 5 | Partial capture |
| 09-01 22:09 | 40m | - / 0 | RD7O | -1 / - | 4 | ✓ Closing fragment |
| 09-01 21:37 | 40m | -17 / -14 | DL1PJO | -11 / -17 | 4 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 210045 -16 1469 CQ IT9ACJ JM77 (x3) 210215 -11 1260 LZ1CCP IT9ACJ -06 (x2) 210300 -17 1256 IT9ACJ LZ1CCP R-11 210315 -16 1262 LZ1CCP IT9ACJ RR73 210330 -8 1256 IT9ACJ LZ1CCP 73 210715 -16 1473 CQ IT9ACJ JM77 211530 +0 1694 IT9ACJ TC2EYL KM59 (x5) 060330 -19 1570 IT9ACJ DA1TE JO50
UTC dB Audio Message 073700 +6 1541 IT9ACJ IZ2CPP 73 073730 +4 1541 IT9ACJ IU3WNU -04 073745 -8 1546 CQ IT9ACJ JM77 (x2) 073830 -4 1541 IT9ACJ IU3WNU -04 073845 -10 1545 CQ IT9ACJ JM77 (x3) 074400 -21 1545 IT9ACJ TA2ED -17 074415 -13 1546 CQ IT9ACJ JM77 074730 -9 2104 IT9ACJ EP2AES LM55 (x3) 075630 +11 1628 IT9ACJ UA3FO R-17 (x2)
UTC dB Audio Message 103645 -18 1526 CQ IT9ACJ JM77 (x7) 111015 -24 1497 SP6JKE IT9ACJ -13 182230 -15 1085 CQ IT9ACJ JM77 (x2) 183300 -19 1093 PY5TD IT9ACJ -02 210715 -24 1481 CQ IT9ACJ JM77 191245 -17 1580 IT9ACJ DO2SHJ JN49 (x3)
UTC dB Audio Message 054300 +9 999 IT9ACJ SP9WAZ -06
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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