MI0OBC — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Northern Ireland Most frequent locator attributed to this token: IO74

Receiver-side FT8 activity involving MI0OBC, decoded by SO8OO in southeastern Poland. 7,714 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 116 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-05.

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 7,714 FT8 messages attributed to MI0OBC as the transmitting token by decoded message structure across 116 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (33%), followed by 20 m (32%) and 40 m (31%). The busiest six-hour window was 03:00-09:00 UTC, containing 48% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (67%); the estimated median was -5 dB.

Overview

7,714
Messages attributed
116
UTC dates decoded
755
Active 15-min windows
-5 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-10-05 04:08 UTC

Observed FT8 message patterns

Attributed sample
7,714 messages
Active dates
116 UTC dates
Estimated median S/N
-5 dB
Estimated 10th-90th percentile
-14 to +4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 555, moderate (-15 to -9 dB) 1,965, strong (≥ -8 dB) 5,194.

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.

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 MI0OBC

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 · 3,752 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,881 km (approx.)
Last such locator decoded
2026-10-05 04:05 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 UTCBandMI0OBC S/NCounterpartCounterpart S/NMsgsCapture
10-05 08:38 40m - / -13 EI2JD -17 / - 2 ✓ Closing fragment
10-05 04:06 80m +4 / - ON7GB - / +3 2 Partial capture
10-05 03:51 80m +2 / - TA4SSK - / -18 7 Partial capture
10-05 03:48 80m -3 / -16 DL7ZF -8 / -13 4 ✓ Full exchange observed
10-05 03:46 80m -5 / - IQ9SZ - / -20 3 Partial capture
10-05 03:45 80m 0 / -13 CT2GQA -7 / -3 5 ✓ Full exchange observed
10-05 03:42 80m 0 / -3 DO4DXA +8 / -6 5 ✓ Full exchange observed
10-05 03:42 80m 0 / -1 ON4MAP -9 / -10 7 ✓ Full exchange observed
10-05 03:40 80m -4 / -16 F4GOH -10 / -12 5 ✓ Full exchange observed
10-05 03:33 80m +4 / - SV1EAG - / -13 8 Partial capture
10-05 03:30 40m - / -16 R6AR -6 / - 2 Partial capture
10-04 20:08 40m - / - IZ2LMU +7 / - 3 Partial capture
10-04 20:01 40m -6 / - OH1TEV - / -10 2 Partial capture
10-04 19:48 40m -1 / - SQ3TR - / -5 2 ✓ Closing fragment
10-04 19:46 40m -1 / -6 UF5F +1 / -7 5 ✓ Full exchange observed
10-04 19:40 40m -4 / - YU1TP - / -15 2 Partial capture
10-04 19:36 40m -6 / - OE3LOA - / -16 2 ✓ Closing fragment
10-04 19:35 40m -2 / - PD1AQL -11 / -4 3 ✓ Closing observed
10-04 17:52 40m -2 / - EW4VX - / -6 2 Partial capture
10-04 17:51 40m +4 / - R2FDP - / -14 2 ✓ Closing fragment
10-04 17:46 40m +6 / - UB4RID - / -16 2 ✓ Closing fragment
10-04 17:42 40m +2 / - LY4AB - / -10 2 Partial capture
10-04 17:39 40m -4 / - RV6AVU +2 / -10 3 ✓ Closing observed
10-04 17:36 40m -6 / +7 DG1BU +6 / -2 6 ✓ Full exchange observed
10-04 17:31 40m -7 / -16 R4PFY -18 / -4 4 ✓ Full exchange observed
10-04 17:28 40m -8 / -11 R4FDD +1 / -3 4 ✓ Full exchange observed
10-04 17:27 40m -1 / - EU4BE - / -7 3 ✓ Closing fragment
10-04 17:25 40m -4 / - EU6UE -11 / -9 3 ✓ Closing observed
10-04 17:24 40m -5 / - Z62NS - / -18 3 Partial capture
10-04 13:05 40m - / 0 DL1BIB -14 / - 2 Partial capture
10-04 12:57 40m - / -16 DG5UDO/P -8 / - 4 ✓ Closing fragment
10-03 21:56 60m - / -10 OH3GBW -2 / - 2 ✓ Closing fragment
10-03 21:48 60m - / -3 DK7QJ +10 / - 2 ✓ Closing fragment
10-03 21:45 60m - / -5 VE1YX -6 / - 2 ✓ Closing fragment
10-03 21:40 80m -3 / - T77R - / -20 6 Partial capture
10-03 21:37 80m -2 / - T77R - / -9 2 Partial capture
10-03 21:36 80m -6 / - RO2E/P - / -4 2 Partial capture
10-03 21:34 80m -6 / - IU3ULH - / -13 3 Partial capture
10-03 21:33 80m -10 / -16 SP4JSR +8 / - 4 ✓ Closing observed
10-03 21:30 80m -5 / -4 DC5PPM +10 / -3 5 ✓ Full exchange observed
10-03 21:29 80m -9 / - G8TKY - / -6 2 Partial capture
10-03 21:28 80m -5 / -6 SP8FNA +2 / -7 5 ✓ Full exchange observed
10-03 21:25 80m -6 / -12 R3ES -9 / - 4 ✓ Closing observed
10-03 21:18 80m 0 / -8 SP4JSR +2 / -5 4 ✓ Full exchange observed
10-03 21:16 80m -7 / -10 OK2SPZ +11 / -13 5 ✓ Full exchange observed
10-03 21:11 80m - / -9 DK9PH +6 / - 3 ✓ Closing fragment
10-03 04:48 80m +2 / - K8OCN - / -22 2 Partial capture
10-03 04:42 80m +2 / -19 SM5CBM +4 / - 6 ✓ Closing observed
10-03 04:40 80m -2 / - IQ6MW - / -11 2 Partial capture
10-03 04:38 80m +2 / - OH8D -14 / -12 4 ✓ Closing observed

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

40m
UTC    dB Audio  Message
200230  -6 2682  CQ MI0OBC IO74
200245 -12 2684  MI0OBC OE5ABL -14
200500  -3 2843  CQ MI0OBC IO74                        a1 (x5)
200830  +3 2786  MI0OBC IZ2LMU JN45 (x3)
033000  -5 1418  MI0OBC R6AR R-16 (x2)
083830 -18 1698  MI0OBC EI2JD R-13 (x2)
084500 -24 1408  MI0OBC DG1RMY JO62
80m
UTC    dB Audio  Message
040015  -3 2685  CQ MI0OBC IO74 (x11)
040630  +1 2685  ON7GB MI0OBC +03 (x2)
040730  +0 2685  DO8JB MI0OBC +00
040830  -1 2685  SV1EAG MI0OBC -15
60m
UTC    dB Audio  Message
042115  -5 1957  MI0OBC F4LVE 73
042145 -14  551  LA8WRA MI0OBC -21 (x2)
042445 -12  666  CQ MI0OBC IO74
042530  -8  666  DN5TD MI0OBC -11
214445 -11  482  CN8NY MI0OBC -14
214530  -7  828  MI0OBC VE1YX R-05 (x2)
214800  +9  534  MI0OBC DK7QJ R-03 (x2)
214915 -11  534  CQ MI0OBC IO74                        a1
215500  -8  534  MI0OBC OZ1NIB 73
215515 -12  535  CQ MI0OBC IO74                        a1
215600  -2  388  MI0OBC OH3GBW R-10 (x2)
10m
UTC    dB Audio  Message
122745  -8 2694  MI0OBC DM2BM JO54 (x2)
123115 -12 2567  MI0OBC DL2NYC 73
123245  -1 2807  MI0OBC OZ5NJ 73
090545 -16 1583  MI0OBC TA3TCW KN30 (x3)
171315 -22 1881  MI0OBC DN9AST JO32 (x3)
190245 -14 2434  MI0OBC DO5PY JN49 (x2)
092130 -17 1183  MI0OBC DN9DSP R+00 (x2)
130545 -22 2133  MI0OBC 5Z4RS 73
20m
UTC    dB Audio  Message
075400  +0 2759  K4FI MI0OBC -22
075830  +5 2759  CQ MI0OBC IO74
080230  -4 2539  IW5ALZ MI0OBC -15
080400 -12 2539  CQ MI0OBC IO74
081230  -3 2539  F1UNR MI0OBC -18
081245  +7 2264  MI0OBC F1UNR R-09
081300  -7 2539  F1UNR MI0OBC RR73
081315  +9 2264  MI0OBC F1UNR 73
161500 -10 2811  WV7Z MI0OBC -16 (x3)
161700  -2 2811  R1OBH MI0OBC -09 (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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