IU8TIS — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving IU8TIS, decoded by SO8OO in southeastern Poland. 553 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 23 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-10-25.
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 553 FT8 messages attributed to IU8TIS as the transmitting token by decoded message structure across 23 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (61%), followed by 40 m (15%) and 160 m (13%). Most decodes (92%) fell within the six-hour window 18:00-00:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (83%); the estimated median was -2 dB.
Overview
Bands
Last attributed message: 2026-10-25 20:33 UTC
Observed FT8 message patterns
- Attributed sample
- 553 messages
- Active dates
- 23 UTC dates
- Estimated median S/N
- -2 dB
- Estimated 10th-90th percentile
- -10 to +6 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 80, strong (≥ -8 dB) 460.
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 IU8TIS 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 IU8TIS
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
- JM88 · 354 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,327 km (approx.)
- Last such locator decoded
- 2026-10-25 20:33 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 | IU8TIS S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-25 20:31 | 60m | -3 / - | S9R | - / -15 | 5 | Partial capture |
| 10-25 20:19 | 60m | 0 / - | S9R | - / -15 | 15 | Partial capture |
| 10-23 22:08 | 40m | - / -10 | CT9/DF7EE | +2 / - | 4 | Partial capture |
| 10-16 23:20 | 80m | +7 / - | F6BHK | 0 / -3 | 7 | Partial capture |
| 10-16 23:08 | 80m | +8 / -8 | R3UG | +9 / -3 | 4 | ✓ Full exchange observed |
| 10-16 23:08 | 80m | +5 / -7 | SP4WJ | +1 / -10 | 26 | ✓ Full exchange observed |
| 10-16 23:03 | 80m | +6 / - | DL9KM | - / -13 | 2 | ✓ Closing fragment |
| 10-16 22:56 | 80m | +4 / +6 | DH2SK | +7 / -6 | 6 | ✓ Full exchange observed |
| 10-16 22:47 | 80m | +12 / -6 | MM3JFM | -3 / -18 | 5 | ✓ Full exchange observed |
| 10-16 22:45 | 80m | +12 / -16 | RZ4M | -1 / -10 | 4 | ✓ Full exchange observed |
| 10-16 22:40 | 80m | -4 / - | IZ1HJU | - / -7 | 2 | ✓ Closing fragment |
| 10-16 22:36 | 80m | +4 / - | OE1MSC | -1 / -8 | 6 | ✓ Closing observed |
| 10-16 22:34 | 80m | +4 / - | CT4KQ | -13 / -13 | 4 | ✓ Closing observed |
| 10-16 22:32 | 80m | +7 / -18 | OE2AGZ | 0 / -10 | 4 | ✓ Full exchange observed |
| 10-16 22:30 | 80m | +4 / -5 | SQ1EG | +6 / -13 | 4 | ✓ Full exchange observed |
| 10-16 22:29 | 80m | +6 / 0 | SP9EVL | +4 / -13 | 4 | ✓ Full exchange observed |
| 10-16 22:27 | 80m | +5 / -4 | RN2F | +5 / -1 | 5 | ✓ Full exchange observed |
| 10-16 22:26 | 80m | +8 / -2 | OK1AWC | +6 / -5 | 5 | ✓ Full exchange observed |
| 10-16 22:20 | 80m | +4 / - | F4NGR | 0 / -7 | 4 | ✓ Full exchange observed |
| 10-16 22:18 | 80m | -2 / -6 | ON4MAP | -11 / -15 | 5 | ✓ Full exchange observed |
| 10-16 22:16 | 80m | +6 / -4 | DO3DY | 0 / -14 | 6 | ✓ Full exchange observed |
| 10-16 22:12 | 80m | -2 / -5 | 9A3AUH | +10 / -6 | 7 | ✓ Full exchange observed |
| 10-16 22:12 | 80m | -2 / +1 | F5MXH | +3 / -15 | 7 | ✓ Full exchange observed |
| 10-16 22:10 | 80m | +2 / -5 | US2YW | +11 / -5 | 6 | ✓ Full exchange observed |
| 10-16 22:09 | 80m | +2 / -9 | PC2J | -8 / -17 | 4 | ✓ Full exchange observed |
| 10-16 21:27 | 40m | -13 / - | S79VU | - / - | 3 | Partial capture |
| 10-13 22:07 | 40m | - / - | PD2PE | -9 / - | 4 | Partial capture |
| 10-13 21:51 | 40m | - / - | IU4PPL | +4 / - | 2 | Partial capture |
| 10-13 21:50 | 40m | - / -10 | IZ1HJU | -10 / - | 2 | Partial capture |
| 10-13 21:46 | 40m | - / - | IZ1HJU | -8 / - | 2 | Partial capture |
| 10-13 21:33 | 40m | - / - | CT2GQA | -3 / - | 3 | ✓ Closing fragment |
| 10-13 21:25 | 40m | - / -15 | F4NFM | -6 / - | 3 | ✓ Closing fragment |
| 10-13 21:23 | 40m | -8 / - | R2ASY | - / -11 | 2 | ✓ Closing fragment |
| 10-13 21:18 | 40m | -6 / - | EA3AKY | - / -4 | 2 | ✓ Closing fragment |
| 10-13 21:13 | 40m | -7 / - | OS4K | - / -14 | 3 | Partial capture |
| 10-13 21:04 | 40m | -10 / - | OS4K | - / -14 | 3 | Partial capture |
| 10-13 20:57 | 40m | - / +2 | OS4K | -14 / - | 4 | Partial capture |
| 10-13 20:43 | 40m | -9 / - | HS0ZOY | - / -12 | 8 | ✓ Closing fragment |
| 10-11 16:00 | 40m | - / - | DN2FBG | -19 / - | 2 | Partial capture |
| 10-11 16:00 | 40m | - / -11 | RW3QW | +4 / - | 2 | ✓ Closing fragment |
| 10-11 15:53 | 40m | -15 / - | UK8FCM | - / -11 | 3 | Partial capture |
| 10-05 20:44 | 80m | 0 / - | UA4FET | - / -14 | 2 | Partial capture |
| 10-05 20:43 | 80m | -3 / - | JH2FXK | - / -7 | 2 | ✓ Closing fragment |
| 10-05 20:41 | 80m | -6 / -7 | RK6OQ | -2 / -4 | 5 | ✓ Full exchange observed |
| 10-05 20:40 | 80m | -4 / -19 | SP9UH | 0 / -14 | 9 | ✓ Full exchange observed |
| 10-05 20:37 | 80m | -4 / - | EI6HIB | - / - | 4 | Partial capture |
| 09-22 22:14 | 160m | -8 / -15 | DF2NV | +2 / -7 | 4 | ✓ Full exchange observed |
| 09-22 22:12 | 160m | -8 / - | EA5YI | - / -10 | 2 | ✓ Closing fragment |
| 09-22 22:09 | 160m | -8 / - | EA2EWL | - / - | 2 | ✓ Closing fragment |
| 09-22 22:08 | 160m | -12 / +2 | IU5TUD | -12 / - | 3 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 202315 +5 2537 S9R IU8TIS JM88 (x15)
UTC dB Audio Message 215145 +5 2765 IU8TIS IU4PPL JN54 (x2) 220530 -20 895 IU8TIS OD5ZZ RR73 220700 -12 1768 IU8TIS PD2PE JO21 220715 -8 2764 OA4ENG IU8TIS JM88 220730 -5 1769 IU8TIS PD2PE JO21 (x3) 212730 -14 2437 S79VU IU8TIS JM88 (x3) 220800 +2 620 IU8TIS CT9/DF7EE -10 (x4)
UTC dB Audio Message 165930 -9 2707 EC8AVE IU8TIS JM88 (x2) 170445 -9 1201 IU8TIS CT3MD +04 (x2) 132115 -10 2638 OY9JD IU8TIS JM88
UTC dB Audio Message 231630 +4 2618 SP4WJ IU8TIS RR73 (x7) 232000 +8 2618 CQ IU8TIS JM88 232015 +0 2619 IU8TIS F6BHK JN24 (x5) 232300 +8 2618 F6BHK IU8TIS -03 (x2)
UTC dB Audio Message 220815 -11 2470 IU8TIS IU5TUD +02 (x2) 220900 -12 2471 IU5TUD IU8TIS 73 220930 -8 2470 EA2EWL IU8TIS JM88 (x2) 221100 -8 2470 CQ IU8TIS JM88 (x2) 221200 -9 2470 EA5YI IU8TIS -10 (x2) 221300 -8 2471 CQ IU8TIS JM88 (x2) 221400 -9 2471 DF2NV IU8TIS -07 221415 +0 303 IU8TIS DF2NV R-15 221430 -6 2470 DF2NV IU8TIS RR73 221445 +4 303 IU8TIS DF2NV 73
UTC dB Audio Message 152400 +16 2733 EA3FYO IU8TIS JM88 (x3) 152600 +14 2733 IK0ISD IU8TIS JM88 (x4) 171830 -5 2723 RZ3Z/P IU8TIS JM88 172015 -2 2723 EP2AES IU8TIS JM88 (x2) 172130 -5 2104 IU8TIS EP2AES -21 172145 +1 2723 EP2AES IU8TIS R-21 172200 -2 2104 IU8TIS EP2AES -21 172215 -5 2723 EP2AES IU8TIS R-19 (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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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