IU5SCG — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IU5SCG, decoded by SO8OO in southeastern Poland. 1,838 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 27 UTC dates in the available aggregate history. Observed between 2026-08-24 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 1,838 FT8 messages attributed to IU5SCG as the transmitting token by decoded message structure across 27 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (47%), followed by 80 m (27%) and 60 m (18%). Most decodes (65%) fell within the six-hour window 22:00-04:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.
Overview
Bands
Last attributed message: 2026-10-14 17:35 UTC
Observed FT8 message patterns
- Attributed sample
- 1,838 messages
- Active dates
- 27 UTC dates
- Estimated median S/N
- -7 dB
- Estimated 10th-90th percentile
- -16.9 to +4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 237, moderate (-15 to -9 dB) 555, strong (≥ -8 dB) 1,046.
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 IU5SCG 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 IU5SCG
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
- JN54 · 1,223 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,013 km (approx.)
- Last such locator decoded
- 2026-10-14 17:33 UTC
Other locator fields attributed to this token: CN84 (27).
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 | IU5SCG S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-14 17:34 | 60m | -12 / +9 | SP9DWT | -3 / +9 | 5 | ✓ Full exchange observed |
| 10-14 17:33 | 60m | -10 / -6 | SP9SOS | -8 / +1 | 7 | ✓ Full exchange observed |
| 10-14 17:32 | 60m | - / - | F4AYI | +13 / - | 3 | Partial capture |
| 10-14 17:31 | 60m | -8 / -12 | EA3ACQ | -12 / - | 3 | ✓ Closing observed |
| 10-14 17:30 | 60m | - / - | OE3DXA | +21 / - | 2 | Partial capture |
| 10-14 17:27 | 60m | -7 / -6 | SP2BDR | -3 / - | 5 | ✓ Full exchange observed |
| 10-14 17:24 | 60m | - / - | DB3EH | -6 / - | 2 | Partial capture |
| 10-14 17:24 | 60m | -5 / -7 | DL2AOM | -11 / -6 | 5 | ✓ Full exchange observed |
| 10-14 13:30 | 40m | -20 / - | DM3PT | -18 / - | 6 | Partial capture |
| 10-14 13:30 | 40m | -18 / - | DG2PHE | - / -9 | 4 | ✓ Closing fragment |
| 10-14 13:29 | 40m | -20 / - | OE7KTI | - / -6 | 2 | ✓ Closing fragment |
| 10-14 13:27 | 40m | - / +7 | DK7ZT | -4 / - | 3 | Partial capture |
| 10-14 13:27 | 40m | - / - | F4BYA | -2 / - | 4 | Partial capture |
| 10-14 13:22 | 40m | - / +5 | DK7ZT | -5 / - | 4 | Partial capture |
| 10-14 10:59 | 40m | - / +1 | DK7ZT | -11 / - | 3 | Partial capture |
| 10-14 10:59 | 40m | - / - | F4BYA | -4 / - | 4 | Partial capture |
| 10-14 10:58 | 40m | - / - | IZ3EAW | -15 / - | 3 | ✓ Closing fragment |
| 10-14 06:45 | 40m | -6 / - | LZ2KSQ | -19 / -13 | 4 | ✓ Closing observed |
| 10-12 15:50 | 40m | - / - | IK8DYE | -8 / - | 4 | Partial capture |
| 10-12 15:47 | 40m | -6 / - | DK8HC | - / 0 | 2 | ✓ Closing fragment |
| 10-12 15:46 | 40m | - / -7 | YO3FFF | +8 / - | 3 | ✓ Closing fragment |
| 10-12 15:45 | 40m | - / - | UA9FMT | -13 / - | 2 | Partial capture |
| 10-12 15:42 | 40m | - / -7 | DL6ZOG | -6 / - | 2 | Partial capture |
| 10-12 15:39 | 40m | -10 / -3 | IU4DTV | -10 / - | 3 | ✓ Full exchange observed |
| 10-12 15:39 | 40m | - / -4 | DK7ZT | +2 / - | 2 | Partial capture |
| 10-12 08:41 | 40m | - / +1 | IK4JPP | -16 / - | 2 | Partial capture |
| 10-12 08:37 | 40m | - / - | S57CT | -1 / - | 3 | ✓ Closing fragment |
| 10-12 08:36 | 40m | - / 0 | DK1CE | -12 / - | 3 | ✓ Closing fragment |
| 10-12 08:24 | 40m | - / - | I5HLK | -10 / - | 4 | Partial capture |
| 10-12 08:17 | 40m | - / -8 | 9A2KO | -10 / - | 2 | Partial capture |
| 10-12 08:17 | 40m | - / -9 | DK1WU | +6 / - | 3 | ✓ Closing fragment |
| 10-12 08:17 | 40m | - / - | DB2HA | +3 / - | 9 | Partial capture |
| 10-11 06:19 | 40m | -11 / - | Z62NS | - / - | 3 | Partial capture |
| 10-11 06:16 | 40m | -8 / - | DH5BM | -4 / -8 | 2 | ✓ Closing observed |
| 10-11 06:11 | 60m | - / +9 | DK7ZT | -21 / - | 3 | Partial capture |
| 10-11 06:09 | 60m | -12 / - | OZ3AEV | - / -2 | 2 | ✓ Closing fragment |
| 10-11 06:08 | 60m | -12 / - | EA5JFO | - / 0 | 2 | ✓ Closing fragment |
| 10-11 06:07 | 60m | -13 / - | DK4RH | - / +6 | 2 | ✓ Closing fragment |
| 10-11 06:04 | 60m | - / +2 | DK7ZT | -18 / - | 2 | Partial capture |
| 10-11 06:04 | 60m | -6 / - | EA6BH | -15 / +5 | 6 | ✓ Closing observed |
| 10-11 06:03 | 60m | -7 / - | G0JEI | - / -2 | 2 | ✓ Closing fragment |
| 10-11 05:56 | 60m | -12 / -4 | ER5GB | -6 / -15 | 5 | ✓ Full exchange observed |
| 10-11 05:54 | 60m | -12 / - | SQ7LQT | - / -1 | 2 | ✓ Closing fragment |
| 10-11 05:53 | 60m | -11 / -8 | PA5RH | -11 / - | 4 | ✓ Closing observed |
| 10-11 05:49 | 60m | -14 / - | ON4DN | - / -10 | 2 | ✓ Closing fragment |
| 10-11 05:48 | 60m | -4 / - | F5OYA/P | - / -10 | 2 | ✓ Closing fragment |
| 10-11 05:45 | 60m | -6 / - | SQ8GBG | - / - | 2 | ✓ Closing fragment |
| 10-11 05:40 | 60m | -8 / - | SP9HWD | - / -9 | 3 | ✓ Closing fragment |
| 10-11 05:40 | 60m | - / -14 | DK7ZT | -12 / - | 4 | Partial capture |
| 10-11 05:38 | 60m | -10 / -7 | YO4BEW | -12 / -16 | 11 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 173330 -5 1371 IU5SCG SP9SOS KN09 173330 +12 2762 IU5SCG F4AYI JN08 173345 -9 1370 CQ IU5SCG JN54 173400 -9 1371 IU5SCG SP9SOS KN09 173400 -5 1129 IU5SCG SP9DWT JN99 173400 -2 2483 IU5SCG DK7ZT +06 173415 -9 1371 SP9DWT IU5SCG +09 173430 -8 1371 IU5SCG SP9SOS KN09 173430 -2 1129 IU5SCG SP9DWT R+09 173445 -14 1370 SP9DWT IU5SCG RR73 173500 -8 1371 IU5SCG SP9SOS KN09 173500 -2 1129 IU5SCG SP9DWT 73 173515 -10 1370 SP9SOS IU5SCG +01 173530 -9 1371 IU5SCG SP9SOS R-06 (x2)
UTC dB Audio Message 132845 -4 2489 IU5SCG DK7ZT +07 132900 -23 1420 OE7KTI IU5SCG -06 (x2) 132945 -8 1740 IU5SCG SP6AMI -13 133000 -15 1420 CQ IU5SCG JN54 133030 -17 1420 DG2PHE IU5SCG R-09 133045 -17 1420 IU5SCG DM3PT JN58 133130 -23 1420 DG2PHE IU5SCG R-09 133145 -17 1420 IU5SCG DM3PT JN58 133200 -16 1420 DG2PHE IU5SCG R-09 133215 -19 1420 IU5SCG DM3PT JN58 133230 -18 1420 DG2PHE IU5SCG RR73 133245 -20 1420 IU5SCG DM3PT JN58 133300 -22 1419 DM3PT IU5SCG +11 (x2)
UTC dB Audio Message 051730 -24 252 CQ IU5SCG JN54 (x4) 052015 +5 2007 IU5SCG G0BLB IO81 052015 -9 989 IU5SCG DO3JP JN49 052045 +3 2007 IU5SCG G0BLB IO81 052145 -9 989 IU5SCG DO3JP R-16 (x3) 052415 -11 1278 IU5SCG OE2AGZ JN67 (x5)
UTC dB Audio Message 225800 -19 1319 CQ IU5SCG JN54 (x8) 043400 -23 1427 LY3BRA IU5SCG JN54 (x4) 043800 -20 1427 CQ IU5SCG JN54 (x3)
UTC dB Audio Message 055545 +11 1774 IU5SCG RN6MA -18 055600 -8 1773 CQ IU5SCG JN54 (x5) 200315 -2 784 IU5SCG EA1IOK IN62 (x2) 200530 -22 1772 EA1IOK IU5SCG RRR 200730 -23 1772 CS8ABF IU5SCG JN54 (x4) 201200 -18 1772 SM0WLL IU5SCG JN54 (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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