MI5JYK — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving MI5JYK, decoded by SO8OO in southeastern Poland. 197 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 19 UTC dates in the available aggregate history. Observed between 2026-07-05 and 2026-09-07.
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 197 FT8 messages attributed to MI5JYK as the transmitting token by decoded message structure across 19 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (54%), followed by 20 m (44%) and 80 m (2%). Most decodes (89%) fell within the six-hour window 18:00-00:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (87%); the estimated median was -21 dB.
Overview
Bands
Last attributed message: 2026-09-07 16:24 UTC
Observed FT8 message patterns
- Attributed sample
- 197 messages
- Active dates
- 19 UTC dates
- Estimated median S/N
- -21 dB
- Estimated 10th-90th percentile
- -24 to -15 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 172, moderate (-15 to -9 dB) 25, 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.
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with MI5JYK 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 MI5JYK
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
- IO74 · 150 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,881 km (approx.)
- Last such locator decoded
- 2026-09-07 16:23 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 | MI5JYK S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-08 16:06 | 40m | - / -13 | DL1LKG | +1 / - | 5 | Partial capture |
| 09-08 15:53 | 40m | - / -17 | UC1Q | -8 / - | 4 | ✓ Closing fragment |
| 09-08 15:30 | 40m | - / - | PD0JHM | -10 / - | 2 | ✓ Closing fragment |
| 09-08 15:28 | 40m | - / -16 | DL7BO | +15 / - | 2 | ✓ Closing fragment |
| 09-07 18:30 | 40m | - / - | RW3DDZ | -8 / - | 2 | Partial capture |
| 09-07 18:29 | 40m | - / -20 | SP6IZU | -6 / - | 3 | Partial capture |
| 09-07 16:23 | 40m | -22 / - | LA7PKA | - / -8 | 2 | ✓ Closing fragment |
| 09-07 16:20 | 40m | - / - | LZ2XF | -2 / - | 2 | Partial capture |
| 09-07 16:14 | 40m | - / - | R2GFN | +1 / - | 4 | Partial capture |
| 09-07 16:14 | 40m | - / - | SP5PSZ | -17 / - | 3 | Partial capture |
| 09-07 16:00 | 40m | - / -2 | DF5DY | +1 / - | 5 | ✓ Closing fragment |
| 09-07 15:48 | 40m | - / -15 | IU2KNG | -4 / - | 2 | Partial capture |
| 09-07 15:34 | 40m | - / -18 | EW4TT | +6 / - | 4 | ✓ Closing fragment |
| 09-06 13:38 | 40m | - / -20 | DL7UKM | -6 / - | 5 | ✓ Closing fragment |
| 09-06 10:52 | 40m | - / -8 | OU7K/P | -14 / - | 2 | ✓ Closing fragment |
| 09-05 12:38 | 40m | - / -16 | DL8HXP | -22 / - | 4 | ✓ Closing fragment |
| 09-05 10:56 | 40m | - / -11 | DF8XC | -13 / - | 3 | ✓ Closing fragment |
| 09-04 18:45 | 40m | - / - | OE6TNO | +1 / - | 6 | Partial capture |
| 09-04 18:41 | 40m | -14 / -20 | ON5AI | +1 / -11 | 4 | ✓ Full exchange observed |
| 09-04 18:39 | 40m | - / - | OE6TNO | 0 / - | 2 | Partial capture |
| 09-04 18:36 | 40m | - / -14 | SP3IBS | +12 / - | 3 | ✓ Closing fragment |
| 09-04 18:34 | 40m | -20 / - | F4JYH | -9 / -16 | 3 | ✓ Closing observed |
| 09-04 18:33 | 40m | - / - | OE6TNO | -4 / - | 2 | Partial capture |
| 09-04 18:33 | 40m | - / - | G4MHJ | -12 / - | 2 | Partial capture |
| 09-04 18:28 | 40m | - / - | OK2PAK | -9 / - | 2 | Partial capture |
| 09-04 18:20 | 40m | - / - | PA1MOS | -16 / - | 2 | Partial capture |
| 09-04 18:20 | 40m | - / - | YU1BV | +5 / - | 3 | Partial capture |
| 09-04 18:10 | 40m | - / - | F4JYP | -3 / - | 4 | ✓ Closing fragment |
| 09-04 18:10 | 40m | - / - | R6ZGS | -8 / - | 3 | Partial capture |
| 09-04 18:03 | 40m | - / - | IK1MJK | -12 / - | 2 | Partial capture |
| 09-04 17:52 | 40m | - / -2 | OZ4MK | -11 / - | 3 | Partial capture |
| 09-04 17:43 | 40m | - / -16 | RU3DNN | -5 / - | 6 | Partial capture |
| 09-04 17:31 | 40m | - / -18 | R3OR | +4 / - | 2 | ✓ Closing fragment |
| 09-04 12:32 | 40m | - / -10 | DK8EW | +1 / - | 2 | ✓ Closing fragment |
| 09-03 19:14 | 40m | - / -11 | LA1KUA | +5 / - | 7 | Partial capture |
| 09-03 19:11 | 40m | -18 / -16 | RW4HBG | +7 / 0 | 6 | Partial capture |
| 09-03 18:49 | 40m | - / -4 | I2VGW | -4 / - | 4 | ✓ Closing fragment |
| 09-03 18:43 | 40m | - / -17 | F4MZI | -2 / - | 6 | ✓ Closing fragment |
| 09-03 18:25 | 40m | - / +3 | OZ7SKB/P | -3 / - | 4 | ✓ Closing fragment |
| 09-03 18:22 | 40m | - / -23 | EA5IYD | -10 / - | 3 | ✓ Closing fragment |
| 09-03 18:03 | 40m | - / -18 | EX7CQ | -4 / - | 4 | ✓ Closing fragment |
| 09-03 17:56 | 40m | - / -24 | OK1AAM | +12 / - | 2 | Partial capture |
| 09-03 16:29 | 40m | - / -8 | SN40KZE | -2 / - | 2 | Partial capture |
| 09-03 16:22 | 40m | - / - | SP6RTX | -8 / - | 2 | Partial capture |
| 09-03 16:10 | 40m | - / - | OK1PHM | 0 / - | 2 | Partial capture |
| 09-02 21:47 | 40m | -18 / -15 | OV6ZM | 0 / 0 | 4 | ✓ Full exchange observed |
| 09-02 21:43 | 40m | - / - | EA5FD | -2 / - | 2 | Partial capture |
| 09-02 21:42 | 40m | - / - | F4BYA | +10 / - | 2 | Partial capture |
| 09-02 21:42 | 40m | - / - | G7RCQ | -7 / - | 5 | Partial capture |
| 09-02 21:39 | 40m | - / - | F4BYA | +16 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 151545 -17 1719 MI5JYK PD1WMD 73 152015 -12 1719 MI5JYK ON4AGV R-04 152815 +16 393 MI5JYK DL7BO -16 (x2) 153045 -13 998 MI5JYK PD0JHM JO22 (x2) 155315 -6 786 MI5JYK UC1Q KO89 (x4) 160645 -8 479 MI5JYK DL1LKG -13 (x5)
UTC dB Audio Message 232445 -12 1166 MI5JYK EA5HM IM99 (x3) 192900 -2 1687 MI5JYK SP3IOE JO72 (x2) 193130 -4 1597 MI5JYK DO6KD JO51 (x4) 193400 +19 356 MI5JYK R6OG KN84 193445 -24 1688 R6OG MI5JYK +00 193715 -24 1689 DL2TT MI5JYK IO74 195230 -2 1689 MI5JYK RA3LBW KO54 195600 +3 1689 MI5JYK SP9DGO KN09 (x2)
UTC dB Audio Message 131745 -6 490 MI5JYK IK4LZH JN54 131500 -21 1749 MI5JYK F4NBB RR73 174215 -19 1522 MI5JYK PA1GLD JO21 (x3) 175045 -5 554 MI5JYK DH1KJ JN48 (x2) 175215 -20 1143 MI5JYK PE1MHY +03 194630 -8 1740 MI5JYK DF9AO -18 (x3) 195330 -16 1840 MI5JYK DL8TT +06 (x2) 200830 -16 1742 MI5JYK PD2V -09 (x2)
UTC dB Audio Message 142745 -14 1749 MI5JYK DG5PW JO30 (x6) 144415 -8 463 MI5JYK IK4LZH JN54 (x2) 144615 -13 1753 MI5JYK TA4SSK KM57 (x4) 150545 -24 2022 MI5JYK DF9OP -17 130115 -7 2531 MI5JYK F1PBZ -16 (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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