MI0CBH — 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 MI0CBH, decoded by SO8OO in southeastern Poland. 75 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 12 UTC dates in the available aggregate history. Observed between 2026-07-07 and 2026-08-28.

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 75 FT8 messages attributed to MI0CBH as the transmitting token by decoded message structure across 12 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (99%), followed by 40 m (1%). Most decodes (87%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (73%); the estimated median was -18 dB.

Overview

75
Messages attributed
12
UTC dates decoded
26
Active 15-min windows
-18 dB
Estimated median S/N

Bands

First attributed message: 2026-07-07
Last attributed message: 2026-08-28 16:43 UTC

Observed FT8 message patterns

Attributed sample
75 messages
Active dates
12 UTC dates
Estimated median S/N
-18 dB
Estimated 10th-90th percentile
-23 to -10 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 55, moderate (-15 to -9 dB) 15, strong (≥ -8 dB) 5.

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 MI0CBH

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 · 29 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,881 km (approx.)
Last such locator decoded
2026-08-21 13:10 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 UTCBandMI0CBH S/NCounterpartCounterpart S/NMsgsCapture
08-28 16:41 20m -21 / - DL1WDS - / -5 4 Partial capture
08-26 18:49 20m - / - PA8S 0 / - 4 Partial capture
08-26 18:46 20m - / +4 ON1JP -6 / - 3 ✓ Closing fragment
08-22 17:47 20m -2 / -16 YC1FEY -5 / +2 8 ✓ Full exchange observed
08-22 17:46 20m - / - IW5ALZ -2 / - 2 Partial capture
08-22 17:39 20m - / - DL1R +8 / - 9 Partial capture
08-22 17:39 20m - / -8 F1AFW -16 / - 4 ✓ Closing fragment
08-22 17:29 20m - / - A71DA +4 / - 2 Partial capture
08-22 17:26 20m -10 / - F4IFO -15 / - 3 ✓ Closing observed
08-22 17:24 20m - / - UA3VVA -14 / - 2 Partial capture
08-21 13:27 20m -20 / -7 PD3JW -20 / -10 3 Partial capture
08-21 13:24 20m - / - M0EGG -17 / - 2 Partial capture
08-21 13:11 20m - / - OK2CNI +9 / - 5 Partial capture
08-21 13:11 20m -11 / - II7MGBT - / -23 3 Partial capture
08-17 19:48 40m - / -6 <...> -22 / - 2 Partial capture
08-17 19:40 40m - / -14 R9FE -9 / - 7 ✓ Closing fragment
08-17 19:23 40m - / -7 PD0DEX -16 / - 2 ✓ Closing fragment
08-17 19:04 40m - / - F4IFO -13 / - 6 ✓ Closing fragment
08-17 18:01 20m - / - PD2GJS -16 / - 2 Partial capture
08-04 18:03 20m -12 / - DL1R - / -19 4 ✓ Closing fragment
08-04 18:00 20m -16 / - IU2THY - / -20 2 ✓ Closing fragment
07-29 15:47 20m - / - DH1KU -11 / - 2 Partial capture
07-29 15:41 20m - / -13 DF5DY -10 / - 2 ✓ Closing fragment
07-29 15:33 20m - / - DF5DY -13 / - 2 Partial capture
07-29 15:27 20m - / - DK2SP -13 / - 2 Partial capture
07-29 15:15 20m - / -8 DK9NP -4 / - 2 ✓ Closing fragment
07-29 15:12 20m - / - RZ4FWA -15 / - 2 Partial capture
07-29 15:11 20m - / -15 UT5MD +1 / - 7 ✓ Closing fragment
07-29 09:16 20m - / -8 ON1ANW -22 / - 2 ✓ Closing fragment
07-29 09:10 20m - / - PD1FS -23 / - 3 ✓ Closing fragment
07-28 18:43 20m - / - DG9FEH -4 / - 2 Partial capture
07-28 18:42 20m - / - RZ4FWA -8 / - 3 Partial capture
07-28 18:34 20m - / -9 OZ1HYM -10 / - 3 ✓ Closing fragment
07-28 18:05 20m -16 / - R6ODC - / -7 6 ✓ Closing fragment
07-28 17:46 20m - / -15 DL6KA -7 / - 3 Partial capture
07-28 17:29 20m -18 / - SP9DAT - / -2 2 ✓ Closing fragment
07-28 17:27 20m - / -16 PD5DRE -16 / - 3 ✓ Closing fragment
07-28 17:14 20m -18 / - 3A2MW - / +7 2 Partial capture
07-25 10:16 20m - / - DL8HF -15 / - 3 Partial capture
07-25 09:58 20m - / -9 DB1EF -22 / - 2 Partial capture
07-19 18:21 20m - / +8 F1PPH -8 / - 3 ✓ Closing fragment
07-19 18:16 20m - / -13 TA4INO -22 / - 2 Partial capture
07-15 21:19 20m -20 / - 2E0WWG - / -2 2 ✓ Closing fragment
07-15 21:16 20m - / -15 YO4DWD -20 / - 2 Partial capture
07-15 21:12 20m - / -16 YO4DWD -15 / - 3 Partial capture
07-15 20:51 20m -20 / - M8KKH - / - 2 Partial capture
07-15 20:43 20m - / -2 RA6OY -4 / - 3 Partial capture
07-15 20:26 20m - / -15 RZ3EM -13 / - 8 Partial capture
07-07 18:01 20m -17 / - TN8GD - / - 3 Partial capture
07-07 17:52 20m - / -5 ON7AN -9 / - 4 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m
UTC    dB Audio  Message
175000  -6 1559  MI0CBH YC1FEY R-15 (x2)
184630  -2 1516  MI0CBH ON1JP +04 (x3)
184900  +4  672  MI0CBH PA8S JO32 (x4)
185445  -4 1464  PA8S MI0CBH -25
185945  -8 1464  F4NJU MI0CBH -05
164145 -24 1464  DL1WDS MI0CBH -05 (x4)
40m
UTC    dB Audio  Message
192215 -19 1372  R2DDN MI0CBH RR73
192300 -17 1372  MI0CBH PD0DEX R-07 (x2)
192930 -13 1871  MI0CBH YO9ADN RRR
193600 -24  847  MI0CBH DL2VN JO51
194000  -8 2525  MI0CBH R9FE LO76 (x4)
194200 -14 1885  MI0CBH SN1A JO73
194200  -9 2525  MI0CBH R9FE R-14 (x3)
194800 -21 2018  MI0CBH <...> R-06 (x2)
80m
UTC    dB Audio  Message
173300 -11 1362  MI0CBH OZ1EDR JO65

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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